Sentences with phrase «predatory fish»

Large predatory fish were also few and far between.

Getting predatory fish or coral - eating fish to eat flakes or pellets is only going to make them healthier.

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

Threespot Damselfish populations have exploded in recent years due to overfishing of predatory fish such as groupers and snappers.

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.

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

In the new study, Becker's team observed the interactions between cleaner shrimp and various species of parasite - laden predatory fish in the wild.

This enables them to squeeze through very narrow slits between underwater rocks, which is very helpful when they are fleeing from morays or other predatory fish.

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

In general, you want to avoid predatory fish high on the food chain, since metals concentrate in the eater each time a fish gets eaten, and fish from highly polluted areas like China.

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

Limiting exposure to methylmercury - laden predatory fish like tilefish from the Gulf of Mexico, shark, swordfish, and king mackerel (27) can go a long way in avoiding methylmercury accumulation.

Qingmendous, a 409 million - year - old predatory fish provides unique insights into the early evolution of modern lobe - finned fishes.

The fossilized food remains of the extinct predatory fish Saurichthys reflect its spiral - shaped intestine.

A last meal provides new insights: The fossilized food remains of the extinct predatory fish Saurichthys reflect its spiral - shaped intestine.

And just because a region receives above - average deposition doesn't mean that it will have high levels of methyl mercury, the form that builds up in long - lived predatory fish such as trout, pike, tuna and swordfish.

We have up - ended the oceans» web of life, removing 90 percent of the mass of great predatory fishes that were there a century ago.

Of course, many predatory fish like these crabs as well.

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 %.

Without any inlets or outlets, they lack predatory fish and, as a result, may all have wood frogs and spotted salamanders in the spring.

Tangles of fishing line caught in the corals are a testament to the fishermen's persistence, and the bodies of predatory fish hanging in the market leave little doubt as to where some of the fish are going.

From fishery records, however, primarily Japanese longline [fishing] records, scientists [have] realized that about 90 percent of all big predatory fishes are gone.

This is the story of one of the winners, a small, shell - crushing predatory fish called Fouldenia, which first appears in the fossil record a mere 11 million years after an extinction that wiped out more than 90 percent of the planet's vertebrate species.

The compound might help the animal defend against predatory fish, or it might actually be produced by symbiotic microbes living on the creature's surface.

Spawning heavily and putting on weight rapidly, Asian carp soon grow too big for native predatory fish to take on.

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.

Now researchers from the ARC Centre of Excellence for Coral Reef Studies (Coral CoE) at James Cook University have found that removing predatory fish such as coral trout and snapper, through fishing, causes significant changes to the make - up of the reef's fish populations.

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

Other oily fish include predatory fish such as swordfish and shark.

Possible over-fishing of tuna could be an indirect threat, as predatory fish herd shoals of small fish to the surface where they become available to surface - feeding seabirds (Ratcliffe 1999).

Introducing live feeders to accommodate predatory fish can be like playing Russian roulette.

In 2011, he joined the California State University, Long Beach Shark Lab, where his Master's degree work focused on analyzing movements of juvenile predatory fishes to assess the landscape connectivity, habitat use and effectiveness of restored estuaries.

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.

These feisty predatory fish stun smaller prey with their prominent bill.

There are sheltered reefs and coral gardens, hosting a wide range of marine life and drop offs which attract some of the more predatory fish such as barracuda, tuna and jacks.

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...

Removing too many herbivorous and predatory fish species deprives coral reefs of critical ecosystem functions and the capacity to respond effectively to other disturbances.

If you're concerned about excessive mercury intake, you can minimize the chances by avoiding predatory fish, such as pike, marlin, mackerel, tilefish and swordfish.

The ~ 242 million year old predatory fishes were found in the fossil Lagerstätte Monte San Giorgio, in Ticino.

Longer - lived predatory fish, including shark, swordfish, tilefish (golden bass), king mackerel, and tuna tend to accumulate higher concentrations of mercury from their consumption of organisms lower in the food chain.

On the open seas, overharvesting of the world's great predatory fishes, from sharks to tunas, has upended marine ecosystems and is leading to the rise of what the marine biologist Jeremy Jackson calls «Slime Ocean.»

Pollution may soon overwhelm deep seas» ability to sequester mercury, which builds up in tuna and other predatory fish

For example, predatory fish like Arctic char and tilapia will be more aggressive when they're given more space in a pen.

«A stable and healthy reef includes a high abundance and diversity of predatory fish and a relatively low number of herbivorous and small prey fish,» says study lead author April Boaden, a PhD student at the Coral CoE.

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...

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

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

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.