Sentences with phrase «large predatory fish»

Research from Dalhousie University suggests that given just 15 years, a modern industrialized fishery can reduce the biomass of large predatory fish communities by 80 %.

They are excellent food for large predatory fishes and can survive underwater for many days.

It accumulates at varying levels in all fish — particularly large predatory fish such as tuna and swordfish — and, when consumed in large quantities, can potentially cause neurological damage and developmental disorders, especially in children.

Sharks, barracuda and other large predatory fishes disappear on Caribbean coral reefs as human populations rise, endangering the region's marine food web and ultimately its reefs and fisheries, according to a sweeping study...

Triassic Neopterygii primarily developed small species while the majority of the more basal ray - fins produced large predatory fish.

However, only completely closed no - take marine reserves successfully returned large predatory fish to the ecosystem.»

A reliance on fish from the reefs for their diet has depleted the closer reefs of large predatory fish, the kind that typically prey on sea urchins.

Fish that are high on the food chain accumulate the most mercury... so that would be large predatory fish such as tuna, swordfish, shark, grouper, king mackeral, tilefish, striped bass, etc...

The largest predatory fish on the planet inspired Steven Spielberg's movie Jaws, which sealed the shark's image as a man - eater.

That goes for every large predatory fish: sharks, tuna, sailfish, cod... It's only through fishing that we have any idea how many fish are out there.

Last May biologists at Dalhousie University in Halifax, Nova Scotia, reported that global stocks of large predatory fish have declined by 90 percent since industrial fishing began in the mid-1950s.

Large predatory fish were dominant in the Permian age but they had to share this role with predatory crocodile - like amphibians after the mass extinction.

Large predatory fish were also few and far between.

Minimize the consumption of large predatory fish (swordfish, tuna, etc) as they are higher in mercury.

However, keeping these large predatory fish to 2 - 3 times per month max is a good idea.

These toxins become concentrated in older fish, large predatory fish, and in fatty species of fish.

In other words, the emphasis was on feeding small ornamental species — not the large predatory fish that are so popular today.

The Atlantic silverside's predators are larger predatory fish — Striped Bass, Blue Fish, Atlantic Mackerel, Tarpon — and many shore birds, including Egrets, Terns, Cormorants, and Gulls

Overall, 90 percent of the world's large predatory fish are in decline [4].