Studies say some birds sense far away storms and alter their migration paths
Cheryl Santa Maria
mardi, 10 novembre 2020 à 09:19 - Studies suggest the birds may be using a combination of cloud observations, wind changes, and sounds undetectable by the human ear to predict the weather.
Migrating birds may be altering their travel patterns based on typhoon activity, according to a recent study by researchers at the Yamashina Institute for Ornithology in Japan.
For their paper, scientists analyzed data from tracking devices attached to six black-naped terns as they flew from Borneo to Sulawesi across the typhoon highway in the Philippine Sea.
Salmon giant Tassal silent on mass death of fish near Port Arthur
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Tassal started farming salmon again at Long Bay in 2017 after a 10-year break.
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Tasmanian aquaculture giant Tassal has reported a sizeable salmon mortality event affecting its Long Bay lease near Port Arthur in the state s south but is refusing to detail the scale or cause of the deaths.
Key points:
Five cages of salmon were involved in a mass mortality event at Tassal s Long Bay lease
The company is remaining silent on the suspected cause
The Environmental Protection Authority was notified of salmon deaths last week
Despite efforts to encourage adoption of social standards, WCPFC declines to take action
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The Western and Central Pacific Fisheries Commission (WCPFC) annual meeting ended on Tuesday, 15 December, and while the members were lauded for agreeing to a rollover of its vital tropical tuna measure, the commission failed to address the human rights and labor issues regarding observer and and crew safety the tuna-fishing sector.
Before its meeting, the WCPFC was lobbied by U.K. NGO Human Rights at Sea to adopt a CMM to address observer-related issues that include a lack of transparency in reporting of fisheries observer-related safety incidents, lack of availability of comprehensive employment contracts, and the need for the fisheries observers to access professional insurance provisions, among other recommendations.
Solace seeking in the Southern Ocean
Australian team looking for answers in marine snow.
CSIRO s RV Investigator. Credit: CSIRO
Australian researchers are on a 45-day mission to capture the most detailed picture yet of how marine life in the Southern Ocean stores carbon from the atmosphere.
CSIRO’s RV Investigator left Hobart early this month on the Southern Ocean Large Areal Carbon Export (SOLACE) voyage. On board were Philip Boyd, his research team and a suite of technology needed to try to find answers in the showers of dead algae and carbon-rich organic particles known as marine snow.
“The microscopic algae in the ocean are responsible for removing carbon dioxide from the atmosphere as much as the forests on land are,” says Boyd, from the University of Tasmania’s Institute for Marine and Antarctic Studies (IMAS). “When they die, these tiny carbon-rich particles fall slowly to the ocean floor like a scene from a snow globe.”