Related topics: fish

New study shows 'dead zone' impacts Chesapeake Bay fishes

A 10-year study of Chesapeake Bay fishes by researchers at the Virginia Institute of Marine Science provides the first quantitative evidence on a bay-wide scale that low-oxygen "dead zones" are impacting the distribution ...

Plunging fish numbers linked to dam releases

A significant decline in the numbers of native fish in Australia's Murray-Darling Basin may be linked to released dam water being too cold for breeding.

Invasive crabs help Cape Cod marshes

(Phys.org) —Ecologists are wary of non-native species, but along the shores of Cape Cod where grass-eating crabs have been running amok and destroying the marsh, an invasion of a predatory green crabs has helped turn back ...

Tortugas marine reserve yields more, larger fish

A new NOAA research report finds that both fish populations and commercial and recreational anglers have benefited from "no-take" protections in the Tortugas Ecological Reserve in the Florida Keys National Marine Sanctuary.

Do beavers benefit Scottish wild salmon?

Reintroduced European beavers could have an overall positive impact on wild salmon populations in Scotland, according to a study by the University of Southampton.

Recreational fishing causes Cape Cod salt marsh die-off

Recreational fishing is a major contributor to the rapid decline of important salt marshes along Cape Cod because it strips top predators such as striped bass, blue crabs, and smooth dogfish out of the ecosystem, according ...

Study finds circle hooks lower catch rate for offshore anglers

Anglers are required to use circle hooks in some fishing tournaments because they are less likely to cause lethal injuries in billfish, such as marlin. However, research from North Carolina State University shows that broadening ...

Forests under threat from exotic earthworm invasion

It is widely acknowledged that human beings are largely responsible for the widespread alteration of ecosystems on the planet. A recent study by Dara Seidl and Peter Klepeis of Colgate University in New York traces the ways ...

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