#phytoplankton — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #phytoplankton, aggregated by home.social.
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NOT so harmless...
Excerpt: "Introducing #KareniaMikimotoi
"The species responsible for recent events in #SouthAustralia beaches, #KMikimotoi, causes harmful #algal blooms in #Asia, #Europe, #SouthAfrica and #SouthAmerica, as well as #Australia and #NewZealand. These blooms all caused fish deaths, and some also caused #breathing difficulties among local #beachgoers.
"The most drastic of these K. mikimotoi blooms have occurred in China over the past two decades. In 2012, more than 300 square kilometres of abalone farms were affected, causing about A$525 million in lost production.
Explaining the toxic effects
"Microalgae can damage the gills of fish and shellfish, preventing them from breathing. This is the main cause of death. But some studies have also found damage to the gastrointestinal tracts and livers of fish.
"Tests using fish gill cells clearly show the dramatic toxic effect of K. mikimotoi. When the fish gill cells were exposed to intact K. mikimotoi cells, after 3.5 hours more than 80% of the fish cells had died.
"Fortunately, the toxin does not persist in the environment after the K. mikimotoi cells are dead. So once the bloom is over, the marine environment can recover relatively quickly.
"Its toxicity is partly due to the algae’s production of 'reactive oxygen species', reactive forms of oxygen molecules which can cause the deaths of cells in high doses. K. mikimotoi cells may also produce lipid (fat) molecules that cause some toxic effects.
"Finally, a very dense bloom of microalgae can sometimes reduce the amount of dissolved oxygen in the water column, which means there is less oxygen for other marine life.
"The human health effects are not very well known but probably relate to the reactive oxygen species being an irritant.
"K. mikimitoi cells can also produce 'mucilage', a type of thick, gluey substance made of complex sugars, which can accumulate #bacteria inside it. This can cause 'sea foam', which was evident on beaches last week.
"A question for many people is whether increasing water temperatures make blooms of K. mikimotoi more likely.
"Another concern is whether nutrient runoff from farms, cities and #aquaculture could cause more harmful algal blooms.
"Unfortunately, for Australia at least, the answer to these questions is we don’t know yet. While we know some harmful algal blooms do increase when nutrient runoff is higher, others actually prefer fewer nutrients or colder temperatures.
"We do know warmer water species seem to be moving further south along the Australian coastline, changing #phytoplankton species abundance and distribution.
"While some microalgal blooms can cause bioluminescence that is beautiful to watch, others such as K. mikimotoi can cause skin and respiratory irritations.
If you notice discoloured water, fish deaths or excessive sea foam along the coast or in an estuary, avoid fishing or swimming in the area and notify local primary industry or environmental authorities in your state."
#OceanHealth #Beaches Algae #SeaFoam #HABs #HarmfulAlgaeBlooms #KareniaMikimotoi #WarmingOceans #Radioactivity #NutrientRunoff #OceansAreLife #ROS #SkinIrritations #RespiratoryIrration #ReactiveOxygenSpecies #DeadZones
-
NOT so harmless...
Excerpt: "Introducing #KareniaMikimotoi
"The species responsible for recent events in #SouthAustralia beaches, #KMikimotoi, causes harmful #algal blooms in #Asia, #Europe, #SouthAfrica and #SouthAmerica, as well as #Australia and #NewZealand. These blooms all caused fish deaths, and some also caused #breathing difficulties among local #beachgoers.
"The most drastic of these K. mikimotoi blooms have occurred in China over the past two decades. In 2012, more than 300 square kilometres of abalone farms were affected, causing about A$525 million in lost production.
Explaining the toxic effects
"Microalgae can damage the gills of fish and shellfish, preventing them from breathing. This is the main cause of death. But some studies have also found damage to the gastrointestinal tracts and livers of fish.
"Tests using fish gill cells clearly show the dramatic toxic effect of K. mikimotoi. When the fish gill cells were exposed to intact K. mikimotoi cells, after 3.5 hours more than 80% of the fish cells had died.
"Fortunately, the toxin does not persist in the environment after the K. mikimotoi cells are dead. So once the bloom is over, the marine environment can recover relatively quickly.
"Its toxicity is partly due to the algae’s production of 'reactive oxygen species', reactive forms of oxygen molecules which can cause the deaths of cells in high doses. K. mikimotoi cells may also produce lipid (fat) molecules that cause some toxic effects.
"Finally, a very dense bloom of microalgae can sometimes reduce the amount of dissolved oxygen in the water column, which means there is less oxygen for other marine life.
"The human health effects are not very well known but probably relate to the reactive oxygen species being an irritant.
"K. mikimitoi cells can also produce 'mucilage', a type of thick, gluey substance made of complex sugars, which can accumulate #bacteria inside it. This can cause 'sea foam', which was evident on beaches last week.
"A question for many people is whether increasing water temperatures make blooms of K. mikimotoi more likely.
"Another concern is whether nutrient runoff from farms, cities and #aquaculture could cause more harmful algal blooms.
"Unfortunately, for Australia at least, the answer to these questions is we don’t know yet. While we know some harmful algal blooms do increase when nutrient runoff is higher, others actually prefer fewer nutrients or colder temperatures.
"We do know warmer water species seem to be moving further south along the Australian coastline, changing #phytoplankton species abundance and distribution.
"While some microalgal blooms can cause bioluminescence that is beautiful to watch, others such as K. mikimotoi can cause skin and respiratory irritations.
If you notice discoloured water, fish deaths or excessive sea foam along the coast or in an estuary, avoid fishing or swimming in the area and notify local primary industry or environmental authorities in your state."
#OceanHealth #Beaches Algae #SeaFoam #HABs #HarmfulAlgaeBlooms #KareniaMikimotoi #WarmingOceans #Radioactivity #NutrientRunoff #OceansAreLife #ROS #SkinIrritations #RespiratoryIrration #ReactiveOxygenSpecies #DeadZones
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NOT so harmless...
Excerpt: "Introducing #KareniaMikimotoi
"The species responsible for recent events in #SouthAustralia beaches, #KMikimotoi, causes harmful #algal blooms in #Asia, #Europe, #SouthAfrica and #SouthAmerica, as well as #Australia and #NewZealand. These blooms all caused fish deaths, and some also caused #breathing difficulties among local #beachgoers.
"The most drastic of these K. mikimotoi blooms have occurred in China over the past two decades. In 2012, more than 300 square kilometres of abalone farms were affected, causing about A$525 million in lost production.
Explaining the toxic effects
"Microalgae can damage the gills of fish and shellfish, preventing them from breathing. This is the main cause of death. But some studies have also found damage to the gastrointestinal tracts and livers of fish.
"Tests using fish gill cells clearly show the dramatic toxic effect of K. mikimotoi. When the fish gill cells were exposed to intact K. mikimotoi cells, after 3.5 hours more than 80% of the fish cells had died.
"Fortunately, the toxin does not persist in the environment after the K. mikimotoi cells are dead. So once the bloom is over, the marine environment can recover relatively quickly.
"Its toxicity is partly due to the algae’s production of 'reactive oxygen species', reactive forms of oxygen molecules which can cause the deaths of cells in high doses. K. mikimotoi cells may also produce lipid (fat) molecules that cause some toxic effects.
"Finally, a very dense bloom of microalgae can sometimes reduce the amount of dissolved oxygen in the water column, which means there is less oxygen for other marine life.
"The human health effects are not very well known but probably relate to the reactive oxygen species being an irritant.
"K. mikimitoi cells can also produce 'mucilage', a type of thick, gluey substance made of complex sugars, which can accumulate #bacteria inside it. This can cause 'sea foam', which was evident on beaches last week.
"A question for many people is whether increasing water temperatures make blooms of K. mikimotoi more likely.
"Another concern is whether nutrient runoff from farms, cities and #aquaculture could cause more harmful algal blooms.
"Unfortunately, for Australia at least, the answer to these questions is we don’t know yet. While we know some harmful algal blooms do increase when nutrient runoff is higher, others actually prefer fewer nutrients or colder temperatures.
"We do know warmer water species seem to be moving further south along the Australian coastline, changing #phytoplankton species abundance and distribution.
"While some microalgal blooms can cause bioluminescence that is beautiful to watch, others such as K. mikimotoi can cause skin and respiratory irritations.
If you notice discoloured water, fish deaths or excessive sea foam along the coast or in an estuary, avoid fishing or swimming in the area and notify local primary industry or environmental authorities in your state."
#OceanHealth #Beaches Algae #SeaFoam #HABs #HarmfulAlgaeBlooms #KareniaMikimotoi #WarmingOceans #Radioactivity #NutrientRunoff #OceansAreLife #ROS #SkinIrritations #RespiratoryIrration #ReactiveOxygenSpecies #DeadZones
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NOT so harmless...
Excerpt: "Introducing #KareniaMikimotoi
"The species responsible for recent events in #SouthAustralia beaches, #KMikimotoi, causes harmful #algal blooms in #Asia, #Europe, #SouthAfrica and #SouthAmerica, as well as #Australia and #NewZealand. These blooms all caused fish deaths, and some also caused #breathing difficulties among local #beachgoers.
"The most drastic of these K. mikimotoi blooms have occurred in China over the past two decades. In 2012, more than 300 square kilometres of abalone farms were affected, causing about A$525 million in lost production.
Explaining the toxic effects
"Microalgae can damage the gills of fish and shellfish, preventing them from breathing. This is the main cause of death. But some studies have also found damage to the gastrointestinal tracts and livers of fish.
"Tests using fish gill cells clearly show the dramatic toxic effect of K. mikimotoi. When the fish gill cells were exposed to intact K. mikimotoi cells, after 3.5 hours more than 80% of the fish cells had died.
"Fortunately, the toxin does not persist in the environment after the K. mikimotoi cells are dead. So once the bloom is over, the marine environment can recover relatively quickly.
"Its toxicity is partly due to the algae’s production of 'reactive oxygen species', reactive forms of oxygen molecules which can cause the deaths of cells in high doses. K. mikimotoi cells may also produce lipid (fat) molecules that cause some toxic effects.
"Finally, a very dense bloom of microalgae can sometimes reduce the amount of dissolved oxygen in the water column, which means there is less oxygen for other marine life.
"The human health effects are not very well known but probably relate to the reactive oxygen species being an irritant.
"K. mikimitoi cells can also produce 'mucilage', a type of thick, gluey substance made of complex sugars, which can accumulate #bacteria inside it. This can cause 'sea foam', which was evident on beaches last week.
"A question for many people is whether increasing water temperatures make blooms of K. mikimotoi more likely.
"Another concern is whether nutrient runoff from farms, cities and #aquaculture could cause more harmful algal blooms.
"Unfortunately, for Australia at least, the answer to these questions is we don’t know yet. While we know some harmful algal blooms do increase when nutrient runoff is higher, others actually prefer fewer nutrients or colder temperatures.
"We do know warmer water species seem to be moving further south along the Australian coastline, changing #phytoplankton species abundance and distribution.
"While some microalgal blooms can cause bioluminescence that is beautiful to watch, others such as K. mikimotoi can cause skin and respiratory irritations.
If you notice discoloured water, fish deaths or excessive sea foam along the coast or in an estuary, avoid fishing or swimming in the area and notify local primary industry or environmental authorities in your state."
#OceanHealth #Beaches Algae #SeaFoam #HABs #HarmfulAlgaeBlooms #KareniaMikimotoi #WarmingOceans #Radioactivity #NutrientRunoff #OceansAreLife #ROS #SkinIrritations #RespiratoryIrration #ReactiveOxygenSpecies #DeadZones
-
NOT so harmless...
Excerpt: "Introducing #KareniaMikimotoi
"The species responsible for recent events in #SouthAustralia beaches, #KMikimotoi, causes harmful #algal blooms in #Asia, #Europe, #SouthAfrica and #SouthAmerica, as well as #Australia and #NewZealand. These blooms all caused fish deaths, and some also caused #breathing difficulties among local #beachgoers.
"The most drastic of these K. mikimotoi blooms have occurred in China over the past two decades. In 2012, more than 300 square kilometres of abalone farms were affected, causing about A$525 million in lost production.
Explaining the toxic effects
"Microalgae can damage the gills of fish and shellfish, preventing them from breathing. This is the main cause of death. But some studies have also found damage to the gastrointestinal tracts and livers of fish.
"Tests using fish gill cells clearly show the dramatic toxic effect of K. mikimotoi. When the fish gill cells were exposed to intact K. mikimotoi cells, after 3.5 hours more than 80% of the fish cells had died.
"Fortunately, the toxin does not persist in the environment after the K. mikimotoi cells are dead. So once the bloom is over, the marine environment can recover relatively quickly.
"Its toxicity is partly due to the algae’s production of 'reactive oxygen species', reactive forms of oxygen molecules which can cause the deaths of cells in high doses. K. mikimotoi cells may also produce lipid (fat) molecules that cause some toxic effects.
"Finally, a very dense bloom of microalgae can sometimes reduce the amount of dissolved oxygen in the water column, which means there is less oxygen for other marine life.
"The human health effects are not very well known but probably relate to the reactive oxygen species being an irritant.
"K. mikimitoi cells can also produce 'mucilage', a type of thick, gluey substance made of complex sugars, which can accumulate #bacteria inside it. This can cause 'sea foam', which was evident on beaches last week.
"A question for many people is whether increasing water temperatures make blooms of K. mikimotoi more likely.
"Another concern is whether nutrient runoff from farms, cities and #aquaculture could cause more harmful algal blooms.
"Unfortunately, for Australia at least, the answer to these questions is we don’t know yet. While we know some harmful algal blooms do increase when nutrient runoff is higher, others actually prefer fewer nutrients or colder temperatures.
"We do know warmer water species seem to be moving further south along the Australian coastline, changing #phytoplankton species abundance and distribution.
"While some microalgal blooms can cause bioluminescence that is beautiful to watch, others such as K. mikimotoi can cause skin and respiratory irritations.
If you notice discoloured water, fish deaths or excessive sea foam along the coast or in an estuary, avoid fishing or swimming in the area and notify local primary industry or environmental authorities in your state."
#OceanHealth #Beaches Algae #SeaFoam #HABs #HarmfulAlgaeBlooms #KareniaMikimotoi #WarmingOceans #Radioactivity #NutrientRunoff #OceansAreLife #ROS #SkinIrritations #RespiratoryIrration #ReactiveOxygenSpecies #DeadZones
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#Phytoplankton found in #CascoBay can harm aquatic life
#MainePublic | By Molly Enking
Published September 9, 2026"The Maine Department of Marine Resources is monitoring an algal bloom in Casco Bay that it says can be toxic to aquatic life, but not humans.
"The phytoplankton can turn the water brown and give off an odor, which was detected in Portland Harbor on Sunday, according to a social media post by the city Harbormaster.
"The first known outbreak of the same bacteria in Casco Bay was in 2017, which led to die-offs of shellfish and lobster.
"It is not yet clear whether fisheries are at risk during this outbreak; the DMR says it will continue to test and monitor waters, from Portland Harbor to Harpswell."
https://www.mainepublic.org/climate/2026-09-09/phytoplakton-found-in-casco-bay-can-harm-aquatic-life
#Maine #MaineNews #CascoBay #ToxicAlgae #MarineLife #WaterIsLife #ClimateChange #ClimateDiaryMaine #MPBN #KareniaMikimotoi
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#Phytoplankton found in #CascoBay can harm aquatic life
#MainePublic | By Molly Enking
Published September 9, 2026"The Maine Department of Marine Resources is monitoring an algal bloom in Casco Bay that it says can be toxic to aquatic life, but not humans.
"The phytoplankton can turn the water brown and give off an odor, which was detected in Portland Harbor on Sunday, according to a social media post by the city Harbormaster.
"The first known outbreak of the same bacteria in Casco Bay was in 2017, which led to die-offs of shellfish and lobster.
"It is not yet clear whether fisheries are at risk during this outbreak; the DMR says it will continue to test and monitor waters, from Portland Harbor to Harpswell."
https://www.mainepublic.org/climate/2026-09-09/phytoplakton-found-in-casco-bay-can-harm-aquatic-life
#Maine #MaineNews #CascoBay #ToxicAlgae #MarineLife #WaterIsLife #ClimateChange #ClimateDiaryMaine #MPBN #KareniaMikimotoi
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#Phytoplankton found in #CascoBay can harm aquatic life
#MainePublic | By Molly Enking
Published September 9, 2026"The Maine Department of Marine Resources is monitoring an algal bloom in Casco Bay that it says can be toxic to aquatic life, but not humans.
"The phytoplankton can turn the water brown and give off an odor, which was detected in Portland Harbor on Sunday, according to a social media post by the city Harbormaster.
"The first known outbreak of the same bacteria in Casco Bay was in 2017, which led to die-offs of shellfish and lobster.
"It is not yet clear whether fisheries are at risk during this outbreak; the DMR says it will continue to test and monitor waters, from Portland Harbor to Harpswell."
https://www.mainepublic.org/climate/2026-09-09/phytoplakton-found-in-casco-bay-can-harm-aquatic-life
#Maine #MaineNews #CascoBay #ToxicAlgae #MarineLife #WaterIsLife #ClimateChange #ClimateDiaryMaine #MPBN #KareniaMikimotoi
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#Phytoplankton found in #CascoBay can harm aquatic life
#MainePublic | By Molly Enking
Published September 9, 2026"The Maine Department of Marine Resources is monitoring an algal bloom in Casco Bay that it says can be toxic to aquatic life, but not humans.
"The phytoplankton can turn the water brown and give off an odor, which was detected in Portland Harbor on Sunday, according to a social media post by the city Harbormaster.
"The first known outbreak of the same bacteria in Casco Bay was in 2017, which led to die-offs of shellfish and lobster.
"It is not yet clear whether fisheries are at risk during this outbreak; the DMR says it will continue to test and monitor waters, from Portland Harbor to Harpswell."
https://www.mainepublic.org/climate/2026-09-09/phytoplakton-found-in-casco-bay-can-harm-aquatic-life
#Maine #MaineNews #CascoBay #ToxicAlgae #MarineLife #WaterIsLife #ClimateChange #ClimateDiaryMaine #MPBN #KareniaMikimotoi
-
#Phytoplankton found in #CascoBay can harm aquatic life
#MainePublic | By Molly Enking
Published September 9, 2026"The Maine Department of Marine Resources is monitoring an algal bloom in Casco Bay that it says can be toxic to aquatic life, but not humans.
"The phytoplankton can turn the water brown and give off an odor, which was detected in Portland Harbor on Sunday, according to a social media post by the city Harbormaster.
"The first known outbreak of the same bacteria in Casco Bay was in 2017, which led to die-offs of shellfish and lobster.
"It is not yet clear whether fisheries are at risk during this outbreak; the DMR says it will continue to test and monitor waters, from Portland Harbor to Harpswell."
https://www.mainepublic.org/climate/2026-09-09/phytoplakton-found-in-casco-bay-can-harm-aquatic-life
#Maine #MaineNews #CascoBay #ToxicAlgae #MarineLife #WaterIsLife #ClimateChange #ClimateDiaryMaine #MPBN #KareniaMikimotoi
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We were warned! From September 2024. And now the #whales are falling silent!!! And #krill are dependent on whales as much as whales are dependent on krill!
#KrillHarvesting threatens #whale recovery
Soaring human demand for krill in the Southern Ocean poses a challenge to the recovery of whale species once hunted nearly to extinction. Stanford researchers identify the growing food conflict and offer solutions.
September 10th, 2024
"Human harvesting of krill in the Southern Ocean could threaten the recovery of whale species that were nearly wiped out by industrial whaling in the 20th century, according to a Sept. 10 study in Nature Communications.
"The tiny, shrimp-like crustaceans known as krill are the essential food source for baleen whales such as blues and #humpbacks. To feed, these giant marine mammals take in great gulps of ocean water, filtering krill through bristly mouth structures. Booming demand for krill as #FishMeal and #omega3 fatty acid nutritional #supplements, however, could leave whales without enough victuals to sustain even their diminished numbers.
" 'Our calculations suggest an alarming possibility that we might harvest krill to the point where we do real damage to recovering whale populations,' said lead study author Matthew Savoca, a research scientist in the lab of Jeremy Goldbogen, associate professor of oceans in the Stanford Doerr School of Sustainability.
"The results highlight a need for scientists, regulators, and industry to carefully assess the impacts of krill harvesting in the Southern Ocean at current levels before expanding. 'With this study, we want to draw attention to how there likely isn’t enough krill to support fully recovered whale populations, and now on top of that, we’re harvesting krill and plan to harvest more krill in the near future,' said Goldbogen, the study’s senior author
.
Counting on krill"The new research grew out of a prior Stanford study documenting how baleen whales gobble up significantly more krill than scientists had previously estimated. A paradoxical finding of that study was that, as whale populations plummeted by roughly 90% in the Southern Ocean during whaling’s grim heyday, so, too, did krill populations.
"The researchers worked out that #BaleenWhales effectively fertilize the ocean through their prodigious droppings, providing nutrients for the #phytoplankton that krill eat. The upshot: The krill population must have been much larger, perhaps five times greater, than it is currently to have sustained the pre-whaling whale populations in the early 20th century.
" 'Krill is the foundation of the entire Southern Ocean ecosystem. They’re really the only thing that large whales eat down there,' Savoca said.
"In the nearly 40 years since a global whaling moratorium went into place in 1986, some Southern Ocean species – particularly humpbacks – have made an impressive comeback. Yet this recovery has taken place against increasing competition with humans for the whales’ critical food source; over the past 30 years, the krill catch has quadrupled to around 400,000 tons annually and is set to expand further.
"Savoca and colleagues calculated how much krill is left in the Southern Ocean for baleen whales, seabirds, and other predators to eat after industrial krill harvesting at current rates, compared to the estimated amount of krill available before industrial whaling began. 'The basic math makes it pretty clear that the current krill biomass cannot support both an expanding krill fishery and the recovery of whale populations to pre-whaling size,' said Savoca."
Read more:
#SaveTheWhales #KrillSupplements #Overfishing #FoodChain #FoodIsLife #WaterIsLife #Whales #Extinction #BlueWhales
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We were warned! From September 2024. And now the #whales are falling silent!!! And #krill are dependent on whales as much as whales are dependent on krill!
#KrillHarvesting threatens #whale recovery
Soaring human demand for krill in the Southern Ocean poses a challenge to the recovery of whale species once hunted nearly to extinction. Stanford researchers identify the growing food conflict and offer solutions.
September 10th, 2024
"Human harvesting of krill in the Southern Ocean could threaten the recovery of whale species that were nearly wiped out by industrial whaling in the 20th century, according to a Sept. 10 study in Nature Communications.
"The tiny, shrimp-like crustaceans known as krill are the essential food source for baleen whales such as blues and #humpbacks. To feed, these giant marine mammals take in great gulps of ocean water, filtering krill through bristly mouth structures. Booming demand for krill as #FishMeal and #omega3 fatty acid nutritional #supplements, however, could leave whales without enough victuals to sustain even their diminished numbers.
" 'Our calculations suggest an alarming possibility that we might harvest krill to the point where we do real damage to recovering whale populations,' said lead study author Matthew Savoca, a research scientist in the lab of Jeremy Goldbogen, associate professor of oceans in the Stanford Doerr School of Sustainability.
"The results highlight a need for scientists, regulators, and industry to carefully assess the impacts of krill harvesting in the Southern Ocean at current levels before expanding. 'With this study, we want to draw attention to how there likely isn’t enough krill to support fully recovered whale populations, and now on top of that, we’re harvesting krill and plan to harvest more krill in the near future,' said Goldbogen, the study’s senior author
.
Counting on krill"The new research grew out of a prior Stanford study documenting how baleen whales gobble up significantly more krill than scientists had previously estimated. A paradoxical finding of that study was that, as whale populations plummeted by roughly 90% in the Southern Ocean during whaling’s grim heyday, so, too, did krill populations.
"The researchers worked out that #BaleenWhales effectively fertilize the ocean through their prodigious droppings, providing nutrients for the #phytoplankton that krill eat. The upshot: The krill population must have been much larger, perhaps five times greater, than it is currently to have sustained the pre-whaling whale populations in the early 20th century.
" 'Krill is the foundation of the entire Southern Ocean ecosystem. They’re really the only thing that large whales eat down there,' Savoca said.
"In the nearly 40 years since a global whaling moratorium went into place in 1986, some Southern Ocean species – particularly humpbacks – have made an impressive comeback. Yet this recovery has taken place against increasing competition with humans for the whales’ critical food source; over the past 30 years, the krill catch has quadrupled to around 400,000 tons annually and is set to expand further.
"Savoca and colleagues calculated how much krill is left in the Southern Ocean for baleen whales, seabirds, and other predators to eat after industrial krill harvesting at current rates, compared to the estimated amount of krill available before industrial whaling began. 'The basic math makes it pretty clear that the current krill biomass cannot support both an expanding krill fishery and the recovery of whale populations to pre-whaling size,' said Savoca."
Read more:
#SaveTheWhales #KrillSupplements #Overfishing #FoodChain #FoodIsLife #WaterIsLife #Whales #Extinction #BlueWhales
-
We were warned! From September 2024. And now the #whales are falling silent!!! And #krill are dependent on whales as much as whales are dependent on krill!
#KrillHarvesting threatens #whale recovery
Soaring human demand for krill in the Southern Ocean poses a challenge to the recovery of whale species once hunted nearly to extinction. Stanford researchers identify the growing food conflict and offer solutions.
September 10th, 2024
"Human harvesting of krill in the Southern Ocean could threaten the recovery of whale species that were nearly wiped out by industrial whaling in the 20th century, according to a Sept. 10 study in Nature Communications.
"The tiny, shrimp-like crustaceans known as krill are the essential food source for baleen whales such as blues and #humpbacks. To feed, these giant marine mammals take in great gulps of ocean water, filtering krill through bristly mouth structures. Booming demand for krill as #FishMeal and #omega3 fatty acid nutritional #supplements, however, could leave whales without enough victuals to sustain even their diminished numbers.
" 'Our calculations suggest an alarming possibility that we might harvest krill to the point where we do real damage to recovering whale populations,' said lead study author Matthew Savoca, a research scientist in the lab of Jeremy Goldbogen, associate professor of oceans in the Stanford Doerr School of Sustainability.
"The results highlight a need for scientists, regulators, and industry to carefully assess the impacts of krill harvesting in the Southern Ocean at current levels before expanding. 'With this study, we want to draw attention to how there likely isn’t enough krill to support fully recovered whale populations, and now on top of that, we’re harvesting krill and plan to harvest more krill in the near future,' said Goldbogen, the study’s senior author
.
Counting on krill"The new research grew out of a prior Stanford study documenting how baleen whales gobble up significantly more krill than scientists had previously estimated. A paradoxical finding of that study was that, as whale populations plummeted by roughly 90% in the Southern Ocean during whaling’s grim heyday, so, too, did krill populations.
"The researchers worked out that #BaleenWhales effectively fertilize the ocean through their prodigious droppings, providing nutrients for the #phytoplankton that krill eat. The upshot: The krill population must have been much larger, perhaps five times greater, than it is currently to have sustained the pre-whaling whale populations in the early 20th century.
" 'Krill is the foundation of the entire Southern Ocean ecosystem. They’re really the only thing that large whales eat down there,' Savoca said.
"In the nearly 40 years since a global whaling moratorium went into place in 1986, some Southern Ocean species – particularly humpbacks – have made an impressive comeback. Yet this recovery has taken place against increasing competition with humans for the whales’ critical food source; over the past 30 years, the krill catch has quadrupled to around 400,000 tons annually and is set to expand further.
"Savoca and colleagues calculated how much krill is left in the Southern Ocean for baleen whales, seabirds, and other predators to eat after industrial krill harvesting at current rates, compared to the estimated amount of krill available before industrial whaling began. 'The basic math makes it pretty clear that the current krill biomass cannot support both an expanding krill fishery and the recovery of whale populations to pre-whaling size,' said Savoca."
Read more:
#SaveTheWhales #KrillSupplements #Overfishing #FoodChain #FoodIsLife #WaterIsLife #Whales #Extinction #BlueWhales
-
We were warned! From September 2024. And now the #whales are falling silent!!! And #krill are dependent on whales as much as whales are dependent on krill!
#KrillHarvesting threatens #whale recovery
Soaring human demand for krill in the Southern Ocean poses a challenge to the recovery of whale species once hunted nearly to extinction. Stanford researchers identify the growing food conflict and offer solutions.
September 10th, 2024
"Human harvesting of krill in the Southern Ocean could threaten the recovery of whale species that were nearly wiped out by industrial whaling in the 20th century, according to a Sept. 10 study in Nature Communications.
"The tiny, shrimp-like crustaceans known as krill are the essential food source for baleen whales such as blues and #humpbacks. To feed, these giant marine mammals take in great gulps of ocean water, filtering krill through bristly mouth structures. Booming demand for krill as #FishMeal and #omega3 fatty acid nutritional #supplements, however, could leave whales without enough victuals to sustain even their diminished numbers.
" 'Our calculations suggest an alarming possibility that we might harvest krill to the point where we do real damage to recovering whale populations,' said lead study author Matthew Savoca, a research scientist in the lab of Jeremy Goldbogen, associate professor of oceans in the Stanford Doerr School of Sustainability.
"The results highlight a need for scientists, regulators, and industry to carefully assess the impacts of krill harvesting in the Southern Ocean at current levels before expanding. 'With this study, we want to draw attention to how there likely isn’t enough krill to support fully recovered whale populations, and now on top of that, we’re harvesting krill and plan to harvest more krill in the near future,' said Goldbogen, the study’s senior author
.
Counting on krill"The new research grew out of a prior Stanford study documenting how baleen whales gobble up significantly more krill than scientists had previously estimated. A paradoxical finding of that study was that, as whale populations plummeted by roughly 90% in the Southern Ocean during whaling’s grim heyday, so, too, did krill populations.
"The researchers worked out that #BaleenWhales effectively fertilize the ocean through their prodigious droppings, providing nutrients for the #phytoplankton that krill eat. The upshot: The krill population must have been much larger, perhaps five times greater, than it is currently to have sustained the pre-whaling whale populations in the early 20th century.
" 'Krill is the foundation of the entire Southern Ocean ecosystem. They’re really the only thing that large whales eat down there,' Savoca said.
"In the nearly 40 years since a global whaling moratorium went into place in 1986, some Southern Ocean species – particularly humpbacks – have made an impressive comeback. Yet this recovery has taken place against increasing competition with humans for the whales’ critical food source; over the past 30 years, the krill catch has quadrupled to around 400,000 tons annually and is set to expand further.
"Savoca and colleagues calculated how much krill is left in the Southern Ocean for baleen whales, seabirds, and other predators to eat after industrial krill harvesting at current rates, compared to the estimated amount of krill available before industrial whaling began. 'The basic math makes it pretty clear that the current krill biomass cannot support both an expanding krill fishery and the recovery of whale populations to pre-whaling size,' said Savoca."
Read more:
#SaveTheWhales #KrillSupplements #Overfishing #FoodChain #FoodIsLife #WaterIsLife #Whales #Extinction #BlueWhales
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We were warned! From September 2024. And now the #whales are falling silent!!! And #krill are dependent on whales as much as whales are dependent on krill!
#KrillHarvesting threatens #whale recovery
Soaring human demand for krill in the Southern Ocean poses a challenge to the recovery of whale species once hunted nearly to extinction. Stanford researchers identify the growing food conflict and offer solutions.
September 10th, 2024
"Human harvesting of krill in the Southern Ocean could threaten the recovery of whale species that were nearly wiped out by industrial whaling in the 20th century, according to a Sept. 10 study in Nature Communications.
"The tiny, shrimp-like crustaceans known as krill are the essential food source for baleen whales such as blues and #humpbacks. To feed, these giant marine mammals take in great gulps of ocean water, filtering krill through bristly mouth structures. Booming demand for krill as #FishMeal and #omega3 fatty acid nutritional #supplements, however, could leave whales without enough victuals to sustain even their diminished numbers.
" 'Our calculations suggest an alarming possibility that we might harvest krill to the point where we do real damage to recovering whale populations,' said lead study author Matthew Savoca, a research scientist in the lab of Jeremy Goldbogen, associate professor of oceans in the Stanford Doerr School of Sustainability.
"The results highlight a need for scientists, regulators, and industry to carefully assess the impacts of krill harvesting in the Southern Ocean at current levels before expanding. 'With this study, we want to draw attention to how there likely isn’t enough krill to support fully recovered whale populations, and now on top of that, we’re harvesting krill and plan to harvest more krill in the near future,' said Goldbogen, the study’s senior author
.
Counting on krill"The new research grew out of a prior Stanford study documenting how baleen whales gobble up significantly more krill than scientists had previously estimated. A paradoxical finding of that study was that, as whale populations plummeted by roughly 90% in the Southern Ocean during whaling’s grim heyday, so, too, did krill populations.
"The researchers worked out that #BaleenWhales effectively fertilize the ocean through their prodigious droppings, providing nutrients for the #phytoplankton that krill eat. The upshot: The krill population must have been much larger, perhaps five times greater, than it is currently to have sustained the pre-whaling whale populations in the early 20th century.
" 'Krill is the foundation of the entire Southern Ocean ecosystem. They’re really the only thing that large whales eat down there,' Savoca said.
"In the nearly 40 years since a global whaling moratorium went into place in 1986, some Southern Ocean species – particularly humpbacks – have made an impressive comeback. Yet this recovery has taken place against increasing competition with humans for the whales’ critical food source; over the past 30 years, the krill catch has quadrupled to around 400,000 tons annually and is set to expand further.
"Savoca and colleagues calculated how much krill is left in the Southern Ocean for baleen whales, seabirds, and other predators to eat after industrial krill harvesting at current rates, compared to the estimated amount of krill available before industrial whaling began. 'The basic math makes it pretty clear that the current krill biomass cannot support both an expanding krill fishery and the recovery of whale populations to pre-whaling size,' said Savoca."
Read more:
#SaveTheWhales #KrillSupplements #Overfishing #FoodChain #FoodIsLife #WaterIsLife #Whales #Extinction #BlueWhales
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Thrilled to announce the publication in L&O of our work on the diversity of temporary ponds from bacteria to vertebrates. We found higher alfa and gamma diversity in the tropics than in the Mediterranean, as expected (although not in all taxa), but no differences in beta diversity or temporal variability. #biodiversity #limnology #ecology #Freshwater #bacteria #zooplankton #phytoplankton #macroinvertebrates #amphibia #metacommunity #ponds https://aslopubs.onlinelibrary.wiley.com/doi/full/10.1002/lno.12429
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CW: Long Hashtag List for the Life Sciences
Life Sciences Hashtags
• Animal Behaviour
#AnimalBehavior #AnimalBehaviour #AnimalCognition #AnimalPsychology #AnimalResearch #AnimalSocieties #AnimalStudies #BehavioralEcology #BehaviouralEcology #BehavioralScience #BehaviouralScience #CameraTraps #ComparativeCognition #CriticalAnimalStudies #Learning #Memory #PositiveReinforcement #Sociobiology #TrailCam• Astrobiology
#AlienLife #Astrobiology #Biosignatures #Cryosphere DeepIce #EarthScience #Exoplanets #GeoScience #Habitability #Karst #MicroHabitats #OceanWorlds #OriginOfLife #PlanetaryCaves #PlanetaryScience• Behaviour Science
#AnthroZoology #Behavior #Behaviour #Behaviour2023 #BehavioralScience #BehaviouralScience #Biopsychology #CognitiveDevelopment #ComparativeCognition #DevelopmentalPsychology #Ethology #Learning #Memory #Neuroethology #PhilosophyOfMind #PleasureActivism #Psychology #SelfOrganisation #SelfOrganization #SocialNetwork• Biochemistry | Group: @biochemistry
#Actin #AminoAcids #Biochemical #Biochemistry #Catalyst #Catalysis #DNA #Enzyme #Enzymes #Hormones #IonChannels #Kinetics #Metabolism #Metabolomics #mRNA #Peptides #Polymer #Protein #Proteins #RNA• Bioinformatics | Group: @bioinformatics
#BigData #Bioinformatics #RStats• Biology | Group: [email protected]
#Biochemistry #Biology #Biomes #Botany #Ecology #Ecosystem #Evolution #Genetics #Habitat #LifeCycle #MarineBiology #Microbiology #Zoology• Biomaterial Science
#Biofilm #Biofilms #Biologics #Biomaterials #Biotechnology #MaterialsScience #Nanotechnology #SustainableDesign #SyntheticBiology• Biomedical Science
#Biomedical #BiomedicalEngineering #BiomedicalScience #NetworkMedicine #SystemsBiology• Botany
#Botany #Botanical #Botanist #FloraIncognita #Florespondence IAmABotanist #Phenology #PlantBiology #PlantCells #PlantID #PlantIdentification• Cell Biology | Group: @cellbiology
#CellBiology #CellDivision #CellMigration #Chloroplast #Cilium #Cytoskeleton #EndoplasmicReticulum #Eukaryotes #Golgi #Lipids #Macrophages #Membrane #Membranes #Microtubules #Mitochondria #Nucleus #Organelle #Organoids #Ribosome #SingleCell• Developmental Biology
#ChildDevelopment #Connectome #Connectomics #DevelopmentalBiology #Embryology #Embryos #EvoDevo #GeneRegulation #Pregnancy #Proteomics #ReproSci #SexDet #StemCells #Transcriptomics• Ecology | Group: @ecology
#AgroEcology #BehavioralEcology #BehaviouralEcology #Biodiversity #BiodiversityCrisis #BiodiversityLoss #Biogeography #ConservationBiology #Ecocide #EcoGrief #Ecological #EcologicalMonitoring #EcologicalSurvey #Ecology #Ecosystem #ForestEcology #Habitat #InvasionEcology #InvasiveSpecies #MassExtinction #OldGrowth #Riparian #WildCounts• Entomology | Group: @entomology
#Beetles #Bugs #Coleoptera #Crustaceans #Entomologia #Entomology #Hemiptera #Hymenoptera #iNaturalist #Insect #Insects #InsectPhotography #Invertebrates #Isopods #Lepidoptera #Metamorphosis #Orthoptera #Pupa #Taxonomy• Genetics
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#Antibiotics #AntiMicrobial #AntiMicrobialResistance (#AMR) #Bacteria #Bacterial #Bacteriophage #Bacteriology #Cilia #Microbes #Microbial #MicrobialEcology #Microbiology #Microbiome #Microbiota #MicroOrganisms #Phage #Protists#EColi #Legionella #Pseudomonas #Salmonella #Streptomyces
• Molecular Biology | Group: @molecularbiology
#Biophysics #CellBiology #MolecularBiology #MolecularEvolution #ProteinEngineering #ProteinStructure #Proteomics #StructuralBiology• Mycology | Group: @mycology
#Fungi #Fungiverse #Mushrooms #Mycelium #Mycologists #Mycology #Mycophile #Spores #Sporespondence• Ornithology | Group: @ornithology
#BirdID #Birding #BirdMigration #BirdPhotography #BirdResearch #BirdsOfMastodon #Corvid #eBird #Migration #Nesting #Oology #Ornithology #Raptor #SeaBirds #ShoreBirds• Virology | Group: @virology
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