#plankton — Public Fediverse posts

How Do Thermocline Depth Maps Help To Locate Bluefin Tuna?
(the sustainable recreational bluefin tuna fishery in New Zealand is spinning up)
--
https://www.fishingmaps.info/articles/bluefin-tuna-and-the-thermocline/ <-- shared technical article
--
https://youtu.be/jit_BjecD1I?si=Ici-Ar3UWlCNyble <-- shared Marine Stewardship Council video, “How science guides sustainable tuna fishing…”
--
https://www.nzgeo.com/stories/billion-dollar-fish/ <-- shared technical media article
--
[this post should not be considered an endorsement of a particular product, approach, organisation or professional(s)]
H/T @ Sam McClatchie | Rewired ex-NOAA Fisheries Oceanographer. Creator of Fishing Maps. Now based in Huia, near Auckland, New Zealand.
“The vertical structure of the upper ocean has a big effect on the productivity and distribution of plankton near the surface of the ocean. The vertical structure also affects the concentration of feed, and that affects the behaviour of Bluefin. Vertical structure of the water is controlled by the interaction of heating by the sun, wind-driven mixing, and the density of the water. In offshore areas, or in areas away from river outflows, density is determined mainly by water temperature. The sun warms the surface of the ocean, and the wind blowing over the ocean distributes the heat by mixing the water.
As the sun warms the surface water it becomes less dense and forms a cap sitting on top of the cold deeper water. The temperature changes rapidly at the boundary between the warm less dense surface water and the denser, cooler water below. This boundary is called the thermocline. If you have ever swum in a lake in the summer and found it warm as bathwater in the surface, but freezing cold when you dropped your feet down, you have experienced the effect of a thermocline.
When there is a warm cap on the ocean, the water is said to be stratified (or layered). If the wind has been calm, and the weather sunny, the warm surface layer will be stable, and strongly stratified conditions may develop. In these conditions, Bluefin dive frequently to relatively shallow depths (less than 100 metres). They dive rapidly, feed below the thermocline and return to the surface waters frequently, spending as much as 65% of their time in the upper 10 metres…
Concentrations of feed often occur just below the thermocline. These layers can be seen on an echosounder. Bluefin dive down through the thermocline to feed on these layers. When the water is strongly stratified, the Bluefin dive more frequently to feed. They also dive faster, and stay less time in the deep cold water than they do when the water is well mixed.
Bluefin use this foraging strategy during both day and night. These fish maintain a body temperature warmer than the water, so they remain highly efficient swimmers in cold water..."
#GIS #spatial #mapping #webmaps #mobile #bluefin #tuna #sustainable #recreational #fishing #fishery #NewZealand #fish #thermocline #depth #remotesensing #food #plankton #warming #watertemperature #marine #ocean #hydrology #river #outflows #hydrography #water #stratification #surface #depth #feeding #ecosystem #habitat

How Do Thermocline Depth Maps Help To Locate Bluefin Tuna?
(the sustainable recreational bluefin tuna fishery in New Zealand is spinning up)
--
https://www.fishingmaps.info/articles/bluefin-tuna-and-the-thermocline/ <-- shared technical article
--
https://youtu.be/jit_BjecD1I?si=Ici-Ar3UWlCNyble <-- shared Marine Stewardship Council video, “How science guides sustainable tuna fishing…”
--
https://www.nzgeo.com/stories/billion-dollar-fish/ <-- shared technical media article
--
[this post should not be considered an endorsement of a particular product, approach, organisation or professional(s)]
H/T @ Sam McClatchie | Rewired ex-NOAA Fisheries Oceanographer. Creator of Fishing Maps. Now based in Huia, near Auckland, New Zealand.
“The vertical structure of the upper ocean has a big effect on the productivity and distribution of plankton near the surface of the ocean. The vertical structure also affects the concentration of feed, and that affects the behaviour of Bluefin. Vertical structure of the water is controlled by the interaction of heating by the sun, wind-driven mixing, and the density of the water. In offshore areas, or in areas away from river outflows, density is determined mainly by water temperature. The sun warms the surface of the ocean, and the wind blowing over the ocean distributes the heat by mixing the water.
As the sun warms the surface water it becomes less dense and forms a cap sitting on top of the cold deeper water. The temperature changes rapidly at the boundary between the warm less dense surface water and the denser, cooler water below. This boundary is called the thermocline. If you have ever swum in a lake in the summer and found it warm as bathwater in the surface, but freezing cold when you dropped your feet down, you have experienced the effect of a thermocline.
When there is a warm cap on the ocean, the water is said to be stratified (or layered). If the wind has been calm, and the weather sunny, the warm surface layer will be stable, and strongly stratified conditions may develop. In these conditions, Bluefin dive frequently to relatively shallow depths (less than 100 metres). They dive rapidly, feed below the thermocline and return to the surface waters frequently, spending as much as 65% of their time in the upper 10 metres…
Concentrations of feed often occur just below the thermocline. These layers can be seen on an echosounder. Bluefin dive down through the thermocline to feed on these layers. When the water is strongly stratified, the Bluefin dive more frequently to feed. They also dive faster, and stay less time in the deep cold water than they do when the water is well mixed.
Bluefin use this foraging strategy during both day and night. These fish maintain a body temperature warmer than the water, so they remain highly efficient swimmers in cold water..."
#GIS #spatial #mapping #webmaps #mobile #bluefin #tuna #sustainable #recreational #fishing #fishery #NewZealand #fish #thermocline #depth #remotesensing #food #plankton #warming #watertemperature #marine #ocean #hydrology #river #outflows #hydrography #water #stratification #surface #depth #feeding #ecosystem #habitat

RE: https://mstdn.social/@compoundchem/116716533544196361

The #climatecrisis has multiple negative effects on the maritime #biosphere.

The rise in temperature in the sea gets most attention, but #oceanacidification is a major risk as well to the #maritime #ecology - threatening the stability of the #foodchain in the world's #oceans.

Within this century the skeletons of maritime organisms, such as #corals, will be at risk to erode faster then they can be sustained. This will also affect #plankton which forms the basis of the maritime #food chain.

RE: https://mstdn.social/@compoundchem/116716533544196361

The #climatecrisis has multiple negative effects on the maritime #biosphere.

The rise in sea temperature receives most attention, but #oceanacidification poses a major risk to the #maritime #ecology as well - threatening the stability of the #foodchain in the world's #oceans.

Within this century the skeletons of maritime organisms, such as #corals, will be at risk to erode faster then they can be sustained. This will also affect #plankton which forms the basis of the maritime #food chain.

Atlantic Meridional Overturning Circulation (#AMOC) is a massive #ocean_current in the #AtlanticOcean, driven by #temperature and #salinity changes (#thermohaline circulation). It influences global #weather significantly:

- Warms up #Arctic, East #Canada, #BritishIsles & #Nordic region
- Cools down #GulfofMexico, #Amazon & #Africa
- Drives #rains in all these regions
- Supports a huge #plankton #biomass, that:
- Supports higher #marine_life
- Acts as #CO2 #carbon_sink.

[2/7]

Atlantic Meridional Overturning Circulation (#AMOC) is a massive #ocean_current in the #AtlanticOcean, driven by #temperature and #salinity changes (#thermohaline circulation). It influences global #weather significantly:

- Warms up #Arctic, East #Canada, #BritishIsles & #Nordic region
- Cools down #GulfofMexico, #Amazon & #Africa
- Drives #rains in all these regions
- Supports a huge #plankton #biomass, that:
- Supports higher #marine_life
- Acts as #CO2 #carbon_sink.

[2/7]

VW verkauft mehr Currywurst als Autos. 🌭😎🤣

https://youtube.com/shorts/S7xy-21b7G0?is=_AFLTTYzxUODEHVK

Schon ein bisschen verrückt was mittlerweile VW so macht. 😅

Wieder eines von diesen informativen und zugleich schön in Szene gesetzten Videos von Plankton, dafür mag ich den Typen total. 🤩👍

#Plankton #VW #Video #Currywurst #Youtube #Shorts

Zooplankton larvae shoot up in the water column when exposed to high pressure.

Mediated by special pressure-sensory photoreceptors.

From our paper on the mechanism of barotaxis.

https://elifesciences.org/articles/94306
#cilia #plankton #neuroscience

Zooplankton larvae shoot up in the water column when exposed to high pressure.

Mediated by special pressure-sensory photoreceptors.

From our paper on the mechanism of barotaxis.

https://elifesciences.org/articles/94306
#cilia #plankton #neuroscience

Plankton sketch card for Topps Chrome 2025 Spongebob Squarepants 25th Anniversary. Now available in stores!

#spongebobsquarepants #bikinibottom  #cartoon #Topps #plankton #toppschrome #nickelodeon #sketchcard #sketchcards #toppstradingcards #toppscards #tradingcard #tradingcards #fanart #art #artwork #drawing #traditionalart #ink

https://www.europesays.com/uk/371228/ Satellites Spotted a Strange Glow in the Ocean, and Scientists Have a Wild Explanation #AntarcticOcean #coccolithophores #FrigidWaters #GreatCalciteBelt #plankton #SatelliteImages #Science #UK #UnitedKingdom

Shifts in diatom and dinoflagellate biomass in the North Atlantic over 6 decades
https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0323675
#ycombinator #Diatoms #Dinoflagellates #Biomass #Latitude #Phytoplankton #Biogeography #Ocean_temperature #Plankton

Shifts in diatom and dinoflagellate biomass in the North Atlantic over 6 decades
https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0323675
#ycombinator #Diatoms #Dinoflagellates #Biomass #Latitude #Phytoplankton #Biogeography #Ocean_temperature #Plankton

Fanart del señor plankton.

#bobesponja #bobsquarepants #plankton #seafood #cartoon #ilustration #clipstudiopaint #mastoart #art

Wie reagiert #Plankton auf eine Erhöhung der #Alkalinität im Ozean?

Diese Frage untersucht eine weltweit koordinierte Vergleichsstudie mit Experimenten an 19 Standorten. Auch das #GEOMAR in #Kiel ist beteiligt und testet in der #Ostsee sowie in tropischen Gewässern vor #Kenia.

Die Methode der Erhöhung der Alkalinität könnte helfen, mehr #CO2 im Meer zu binden und die #Ozeanversauerung zu bremsen.

https://www.geomar.de/news/article/oaepiip

#Meeresforschung #Ozeane #Wissenschaft #Klimawandel #Science

Wie reagiert #Plankton auf eine Erhöhung der #Alkalinität im Ozean?

Diese Frage untersucht eine weltweit koordinierte Vergleichsstudie mit Experimenten an 19 Standorten. Auch das #GEOMAR in #Kiel ist beteiligt und testet in der #Ostsee sowie in tropischen Gewässern vor #Kenia.

Die Methode der Erhöhung der Alkalinität könnte helfen, mehr #CO2 im Meer zu binden und die #Ozeanversauerung zu bremsen.

https://www.geomar.de/news/article/oaepiip

#Meeresforschung #Ozeane #Wissenschaft #Klimawandel #Science

As #Wildfire Season Approaches, #Phytoplankton Take On Fires’ Trickiest Emissions https://insideclimatenews.org/news/29072024/phytoplankton-wildfire-black-carbon-emissions/

#FireEcology in marine systems https://www.cell.com/trends/ecology-evolution/abstract/S0169-5347(23)00332-4

Microbial marine life can thrive off the black #carbon released from #wildfires and bolster the oceanic carbon sink. Scientists still emphasize their sequestration role has its limits.

#ClimateCrisis #ClimateChange #Algae #Protists #Microbes #ExtremeWeather #Plankton

Looking for numbers on community #calcification rate. It seems the literature has only two options "#reef" (shallow, corals) or "#plankton"...
Temperate reefs? #Mesophotic reefs? Calcareous algae meadows? #Seagrass epiphytes? Sorry, nothing for you.

Looking for numbers on community #calcification rate. It seems the literature has only two options "#reef" (shallow, corals) or "#plankton"...
Temperate reefs? #Mesophotic reefs? Calcareous algae meadows? #Seagrass epiphytes? Sorry, nothing for you.

Le fluttuanti moltitudini, un popolo di microbi sopra le nostre teste

https://www.jacoporanieri.com/blog/?p=40317

#microbi #microrganismi #pollini #biologia #plankton #vita #evoluzione #terra #pianeta #venti #cielo #diffusione #propagazione #creature #rischi #ecologia #ambiente #vuoto #ricerca #scienza

Remote Sensing Of Coccolithophore Blooms In Selected Oceanic Regions Using The Phytodoas Method Applied To Hyper-Spectral Satellite Data
-- https://doi.org/10.5194/bg-9-2127-2012 <-- shared paper
--
#GIS #spatial #mapping #marine #ocean #remotesensing #earthobservation #coccolithophore #bloom #satellite #SCIAMACHY #hyperspectral #ENVISAT #PhytoDOAS #GlobColour #phytoplankton #plankton #geophysics #seasurface #temperature #mixedlayerdepth #windspeed #modeling #corrleation #biomass #spatialanalysis #spatiotemporal #timeseries

Remote Sensing Of Coccolithophore Blooms In Selected Oceanic Regions Using The Phytodoas Method Applied To Hyper-Spectral Satellite Data
-- https://doi.org/10.5194/bg-9-2127-2012 <-- shared paper
--
#GIS #spatial #mapping #marine #ocean #remotesensing #earthobservation #coccolithophore #bloom #satellite #SCIAMACHY #hyperspectral #ENVISAT #PhytoDOAS #GlobColour #phytoplankton #plankton #geophysics #seasurface #temperature #mixedlayerdepth #windspeed #modeling #corrleation #biomass #spatialanalysis #spatiotemporal #timeseries

Small but mighty, #plankton are among the most powerful creatures on Earth

#primary_production #photosynthesis #phytoplanktion
#oceans #aquatic #biomes

https://theconversation.com/small-but-mighty-plankton-are-some-of-the-most-powerful-creatures-on-earth-229244

It was great to talk to Adam Larson from FairScope at #OS2024 for @cosmicshambles.com The Planktoscopes are open-source, use cheap components, high quality and designed to bring the world of the small to everyone. If ocean/river plankton is your thing (professional researcher or interested citizen), do take a look. We were really impressed with their work to make science more accessible:

https://www.fairscope.com/

#FrugalScience #science #plankton #accessibility

#ClimateCrisis: #OceanAcidification in the #Mediterranean is already affecting the #calcification of marine #plankton https://phys.org/news/2023-11-ocean-acidification-mediterranean-affecting-calcification.html paper: https://www.nature.com/articles/s43247-023-00947-7

"#Foraminifera #protists... build a shell, several hundred micrometers in size, which is made of #CalciumCarbonate... these #calcite structures are highly sensitive to changes in seawater #chemistry... This is reflected in an accelerated decrease in shell weight during the 20th century."

#ClimateCrisis: #OceanAcidification in the #Mediterranean is already affecting the #calcification of marine #plankton https://phys.org/news/2023-11-ocean-acidification-mediterranean-affecting-calcification.html paper: https://www.nature.com/articles/s43247-023-00947-7

"#Foraminifera #protists... build a shell, several hundred micrometers in size, which is made of #CalciumCarbonate... these #calcite structures are highly sensitive to changes in seawater #chemistry... This is reflected in an accelerated decrease in shell weight during the 20th century."

L’atletico miriapode, piccolo Leviatano fluttuante dei mari

https://www.jacoporanieri.com/blog/?p=38902

#animali #anellidi #vermi #policheti #mare #oceano #abissi #profondità #movimento #nuoto #kinematica #pseudopodi #predatori #prede #carnivori #plankton #biologia #evoluzione #riproduzione #natura #ecologia #ambiente #unoscienza

The #ocean's color is changing as consequence of #climatechange. The team writes that they have detected changes in ocean color over the past two decades that cannot be explained by natural, year-to-year variability alone. These #colorshifts, though subtle to the human eye, have occurred over 56 percent of the world's oceans—an expanse that is larger than the total land area on #Earth. #ecology #oceans #carbondioxide #plankton #GreenhouseGases #chlorophyll concentrations https://phys.org/news/2023-07-ocean-consequence-climate.html

The #ocean's color is changing as consequence of #climatechange. The team writes that they have detected changes in ocean color over the past two decades that cannot be explained by natural, year-to-year variability alone. These #colorshifts, though subtle to the human eye, have occurred over 56 percent of the world's oceans—an expanse that is larger than the total land area on #Earth. #ecology #oceans #carbondioxide #plankton #GreenhouseGases #chlorophyll concentrations https://phys.org/news/2023-07-ocean-consequence-climate.html

"#ClimateChange may have stimulated a #plankton bloom that caused thousands of #DeadFish to wash up on a beach in #Thailand’s #Chumphon province.

This month, thousands of dead #fish washed up on beaches in #Texas, and experts are warning of algal blooms along the #British coast as a result of rising sea temperatures.

In Southern #California, hundreds of #dolphins and #SeaLions have been washing up on beaches dead or sick, amid a toxic #algal bloom. "

https://www.cnn.com/2023/06/23/asia/fish-die-off-thailand-climate-change-intl/index.html

"#ClimateChange may have stimulated a #plankton bloom that caused thousands of #DeadFish to wash up on a beach in #Thailand’s #Chumphon province.

This month, thousands of dead #fish washed up on beaches in #Texas, and experts are warning of algal blooms along the #British coast as a result of rising sea temperatures.

In Southern #California, hundreds of #dolphins and #SeaLions have been washing up on beaches dead or sick, amid a toxic #algal bloom. "

https://www.cnn.com/2023/06/23/asia/fish-die-off-thailand-climate-change-intl/index.html

"#ClimateChange may have stimulated a #plankton bloom that caused thousands of #DeadFish to wash up on a beach in #Thailand’s #Chumphon province.

This month, thousands of dead #fish washed up on beaches in #Texas, and experts are warning of algal blooms along the #British coast as a result of rising sea temperatures.

In Southern #California, hundreds of #dolphins and #SeaLions have been washing up on beaches dead or sick, amid a toxic #algal bloom. "

https://www.cnn.com/2023/06/23/asia/fish-die-off-thailand-climate-change-intl/index.html

"#ClimateChange may have stimulated a #plankton bloom that caused thousands of #DeadFish to wash up on a beach in #Thailand’s #Chumphon province.

This month, thousands of dead #fish washed up on beaches in #Texas, and experts are warning of algal blooms along the #British coast as a result of rising sea temperatures.

In Southern #California, hundreds of #dolphins and #SeaLions have been washing up on beaches dead or sick, amid a toxic #algal bloom. "

https://www.cnn.com/2023/06/23/asia/fish-die-off-thailand-climate-change-intl/index.html

"#ClimateChange may have stimulated a #plankton bloom that caused thousands of #DeadFish to wash up on a beach in #Thailand’s #Chumphon province.

This month, thousands of dead #fish washed up on beaches in #Texas, and experts are warning of algal blooms along the #British coast as a result of rising sea temperatures.

In Southern #California, hundreds of #dolphins and #SeaLions have been washing up on beaches dead or sick, amid a toxic #algal bloom. "

https://www.cnn.com/2023/06/23/asia/fish-die-off-thailand-climate-change-intl/index.html

boostasin tän jo, mutta tämä ansaitsee oman korostuksensa:

"plankton is more important for our survival than any businesspeople"

👌🌊🦠

#ClimateCrisis #Ilmastokriisi #esg #sustainability #hallitusneuvottelut #luonto #nature #VastuullinenSijoittaminen #talous #meret #sea #plankton

https://mastodon.online/@NatureMC/110490279813624569

#African #FossilFriday

Often, the smallest #fossil tells the best story. The #Tanzanian 🇹🇿 Drilling Project studies #fossils of #plankton and other tiny #marine organisms to better understand #climate and its impacts during periods of time much warmer than today. For example, this core was bored into #Paleocene rocks, revealing details of an #offshore #environment that existed just after one of our planet's largest mass #extinctions.

Image from Berrocoso et al. 2012.

https://doi.org/10.1016/j.jafrearsci.2012.05.006

Marine #plankton tell the long story of #ocean #health, and maybe human too.

#exposome

https://phys.org/news/2023-01-marine-plankton-story-ocean-health.html

I thought I’d kick the year off by reintroducing myself to you all. I’m a 48 year old biology undergraduate and planning a career in marine biology. For the last two years I’ve been obsessed with my local #rockpools but I’ve now switched my main focus to marine #plankton.

I’m married to an amazing web developer @jamesbeston and we #homeeducate our two kids. I’m #nonbinary, probably #neurodivergent, an #atheist, and have 3 kitties.
#marinebiology #microscopy

I thought I’d kick the year off by reintroducing myself to you all. I’m a 48 year old biology undergraduate and planning a career in marine biology. For the last two years I’ve been obsessed with my local #rockpools but I’ve now switched my main focus to marine #plankton.

I’m married to an amazing web developer @jamesbeston and we #homeeducate our two kids. I’m #nonbinary, probably #neurodivergent, an #atheist, and have 3 kitties.
#marinebiology #microscopy