Sentences with phrase «predatory fish species»

Also, many of the predatory fish species used in sushi, such as salmon, have high amounts of potentially dangerous substances, including pesticides and heavy metals like mercury.

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

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

Not exact matches

Pyenson et al. report that the site, Cerro Ballena, dates to the Late Miocene period and consists of over 40 skeletons of marine vertebrates, including rorqual and sperm whales, seals, predatory fishes, and fascinating, now completely extinct, species such as walrus - whales and aquatic sloths.

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

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.

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

While invasive predatory freshwater fishes have caused devastating damage to native freshwater species, ref marine invasive fishes are relatively uncommon and their ecological effects are largely unknown.

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.

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

Fortunately, most of the miniature species of fish available to the trade are not predatory on other fish species.

Marine fish are extremely diverse, and you will always have a few customers looking for predatory species, especially sharks.

I really like them as a food for any predatory species of fish — freshwater or marine.

Plenty of fish will turn over a starfish and eat it, but there are also predatory species of starfish that attack fish that live on the substrate.

Warn your customers that many predatory species of fish will eat regular and hermit crabs, while snails are rarely the object of predation.

Just stay away from predatory or aggressive fish species.

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

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.

The university reports, «Over a six - year period, researchers investigated the stomach contents of 595 fish representing 10 predatory open - ocean species, including commercially valuable tunas and billfishes.