Search our collection of background (non-event) articles from news media, science journals and other sources.
Warming waters have reduced the harvest of Alaska's prized Copper River salmon to just a fraction of last year's harvest, Alaska biologists say.
ANCHORAGE — The commercial salmon harvest in Alaska's Copper River is so far the second lowest in 50 years, state officials said. The Alaska Department of Fish and Game's fish...
Late last year one of the world’s largest credit rating agencies announced that climate change would have an economic impact on the U.S.
Oversight of fish farming companies is lacking according to ecologist Cristian Gallo of the Westfjords Natural History Institute.
Only 1,123 adult winter Chinook salmon, once one of the biggest salmon runs on the Sacramento River and its tributaries, returned to the Sacramento Valley in 2017, according to a report sent to the Pacific Fishery Management Council (PFMC) by the...
Climate change has warmed the waters east of Tasmania at four times the speed of the global average. But the heatwave of the southern summer of 2015/2016 was something exceptional, damaging fisheries and bringing new species to the island. It's a sign of things to come, say the researchers examining these events.
Serious and unusual outbreaks of illness from eating raw or undercooked walrus to call attention to the risks.
Keeping tabs on capelin — from the shores of the Atlantic ocean to the world wide web.
In the Bering Sea, near the edge the continental shelf, fishermen are trying to escape a predator that seems to outwit them at every turn, stripping their fishing lines and lurking behind their vessels.
The latest research shows that diminishing Arctic sea ice caused by climate change is forcing some species to travel further to find food or look for alternative food sources.
A major new international study has recognized the crucial role Arctic Indigenous Peoples have to play in ecological restoration efforts that help build resilience to major climate-change driven shifts in the distribution of land, marine and freshwater species.
Wild salmon from the Pacific coast of North America may be infected with Japanese tapeworms, according to a study in a CDC-published journal.
Guyana’s fish production has suffered a significant decline partly due to the adverse impact of sargassum seaweed, local and regional fishery experts said.
The regionally endemic Galapagos Grouper, locally known as bacalao, is one of the most highly prized finfish species within the Galapagos Marine Reserve (GMR). Concerns of overfishing, coupled with a lack of fishing regulations aimed at this species raises concerns about the current population health. We assessed changes in population health over a 30-year period using three simple indicators: (1) percentage of fish below reproductive size (Lm); (2) percentage of fish within the optimum length interval (Lopt); and (3) percentage of mega-spawners in the catch. Over the assessed period, none of the indicators reached values associated with healthy populations, with all indicators declining over time. Furthermore, the most recent landings data show that the vast majority of the bacalao caught (95.7%,) were below Lm, the number of fish within the Lopt interval was extremely low (4.7%), and there were virtually no mega-spawners (0.2%). Bacalao fully recruit to the fishery 15 cm below the size at which 50% of the population matures. The Spawning Potential Ratio is currently 5% of potential unfished fecundity, strongly suggesting severe overfishing. Our results suggest the need for bacalao-specific management regulations that should include minimum (65 cm TL) and maximum (78 cm TL) landing sizes, slot limits (64–78 cm TL), as well as a closed season during spawning from October to January. It is recognized that these regulations are harsh and will certainly have negative impacts on the livelihoods of fishers in the short term, however, continued inaction will likely result in a collapse of this economically and culturally valuable species. Alternative sources of income should be developed in parallel with the establishment of fishing regulations to limit the socio-economic disruption to the fishing community during the transition to a more sustainable management regime.
B.C salmon farms last year were besieged by sea lice, according to a new University of Toronto study, which also found a dangerously steep rise of infestation among young wild salmon who swam nearby.
The latest research suggests pink salmon could be depriving offshore coho and chinook of squid.
Populations of marine wildlife have plummeted by a half on average over the past 40 years with some species suffering far greater declines as a result of habitat loss, overfishing, rising sea temperatures and worsening ocean acidity, a major report has found.
If you're wondering why British Columbia experienced such a mild winter and early spring, you could maybe blame it on a mysterious "blob" of warm water in the Pacific Ocean.
Tar ball deposition on Goa's beaches affecting marine life, says NIO study on Business Standard. To carry out study the NIO also collected samples from Baga, Candolim, Calungute and Mandrem beaches from North Goa and Velsao, Betalbatim, Colva and Benaulim from South Goa.
Study finds genetic evidence of climate-change adaptation.
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