Sentences with phrase «large predatory fishes»

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

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 %.

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.

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

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 also few and far between.

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

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].

Not exact matches

But some types of seafood — particularly large, predatory fish such as shark, swordfish, king mackerel and tilefish — can contain high levels of mercury.

Pike is a widely distributed, long - lived and large keystone predatory fish species that breeds annually after becoming mature.

Swordfish are large, highly migratory, predatory fish characterized by a long, flat bill in contrast to the smooth, round bill of the marlins.

Swiss and U.S. American researchers led by the Paleontological Institute and Museum of the University of Zurich have discovered the fossil remains of one of the earliest large - sized predatory fishes of the Triassic period: an approximately 1.8 - meter - long primitive bony fish with long jaws and sharp teeth.

The small crustaceans, which dine on parasites that infest large, predatory fish, use the dance to attract customers.

«Predatory fish have more difficulty catching larger prey with spiny fins and have problems swallowing them.

Dunkleosteus grew up to 33 feet long and was the largest of a group of armor - plated predatory fish, the placoderms.

These species facilitate the transfer of energy to higher trophic levels by consuming very small prey and then being eaten by larger, predatory fish and other marine animals.

The American Heart Association generally recommends that people eat fish at least twice a week, limiting their consumption of large, predatory fish that might have higher mercury levels.

Other sources of mercury include coal - burning industrial plants, large predatory ocean fish, river fish, and dental amalgams.

(However, with the concerns about methyl mercury in fish experts recommend you limit your exposure to large, predatory fish to no more than 7 oz a week - less if you are pregnant or a child.)

Many commonly eaten fish are surprisingly low in mercury, especially North Atlantic small fish, as opposed to the large predatory ones or the estuary bottom dwellers.

I never believed frozen squid would sell, but they do — mainly to people with large predatory marine fish like groupers, moray eels and triggers.

Scripps's murrelet feeds at sea (but on average not as far from land as Guadalupe murrelet), often in association with large pelagic predatory fish like tuna, on larval fish like anchovies, sardines and Sebastes rockfish.

Animal life in the caves include large fresh water crabs, crayfish, catfish and other tropical fish,, large invertebrates like Amblypygi as well as bats and predatory spiders

Animal life in the cave includes a large population of bats, large fresh water crabs, crayfish, catfish and other tropical fish, Large invertebrates like Amblypygi and various predatory spiders also inhabit the large population of bats, large fresh water crabs, crayfish, catfish and other tropical fish, Large invertebrates like Amblypygi and various predatory spiders also inhabit the large fresh water crabs, crayfish, catfish and other tropical fish, Large invertebrates like Amblypygi and various predatory spiders also inhabit the Large invertebrates like Amblypygi and various predatory spiders also inhabit the cave.

Fishing with miles - long lines of baited hooks has spread around the world in the past few decades and has removed up to 90 percent of the large predatory species, including tunas, billfish and sharks, according to a variety of recent studies.