New (free) online course from @nature_org, @AllenCoralAtlas & partners: #RemoteSensing and Mapping for Coral Reef Conservation.
Like us, corals need #oxygen to live. Low ocean oxygen levels may threaten corals more acutely than unusually high sea temperatures. Both are becoming more frequent because of #climatechange.
Oceans absorb about 25% of the #CO2 emitted by human activities. Turns out the much-maligned #jellyfish plays a critical role in cycling & storing #bluecarbon.
A #sunfish wreaks havoc.
“We get it,” said an official in Wareham, Massachusetts, referring to the concern residents had expressed about an enormous, blob-like fish. “But 911 isn’t a good avenue to report fish that are swimming around.” https://nyti.ms/3lJlEH1
Mesophotic #coralreefs, found at 30-150m depth, can experience #coralbleaching & cyclone damage. If not too bad, disturbances like these may benefit #biodiversity. However, slow growth rates may challenge their ability to recover after severe events.
With fewer large, old corals reproducing and fewer baby corals surviving on the #GreatBarrierReef, its capacity for #resilience in the face of #ClimateChange is declining.
Marine #ecosystems are sensitive to pollutants in #wastewater like endocrine disruptors, pathogens & excessive nutrients. Does #COVID-19 pose a new threat?
https://www.hakaimagazine.com/news/could-marine-mammals-contract-covid-19/ via @hakaimagazine
Now documented in #sharks--one guy takes another guy's dinner.
Iridocytes, cells in #giantclam tissues, transform harmful UV radiation into longer wavelength light that powers photosynthesis in their symbiotic algae.
#sunscreen #animalfacts https://phys.org/news/2020-07-giant-clams-symbiotic-partner.html
Nitrogen and phosphorous #pollution from fertilizers, sewage & other human sources compromises corals' ability to fight off infection.
To a starlet #SeaAnemone, a second helping of dessert might mean a new tentacle.
Nutrient pollution from fertilizers, stormwater runoff, sewage & other sources exacerbates #CoralBleaching. While not sufficient to mitigate the effects of #ClimateChange on corals, decreasing local pollution may reduce bleaching severity.
It's #WorldWaterWeek!🌊💧🌏Ocean sewage pollution can make corals more susceptible to disease and #coralbleaching. Insights from #behavioralscience may lead to effective interventions.
https://oursharedseas.com/leveraging-behavioral-insights-to-solve-our-sewage-pollution-crisis/ via @OurSharedSeas