Sentences with phrase «of sharks and rays»

«We now know that many species of sharks and rays, not just the charismatic white sharks, face extinction across the ice - free seas of the world,» says Nick Dulvy, a Simon Fraser University (SFU) Canada Research Chair in Marine Biodiversity and Conservation in British Columbia.

-LSB-...] Previous studies have documented local overfishing of some populations of sharks and rays.

A conductive material found in the electric field - sensing organs of sharks and rays is inspiring new technology.

Dive straight from the back of a boat or snorkel out from an island beach to discover some of the 1,600 species of fish, 30 species of whales and dolphins, 130 species of sharks and rays and six species of sea turtles, which thrill millions of visitors every year.

Many species of sharks and rays inhabit the surrounding body of water.

There are around 600 types of hard and soft corals, over 1600 types of fish, more than 100 different jellyfish species, around 30 species of whales and dolphins and over 130 varieties of sharks and rays.

And we mean marine life: more than 30 species of whales and dolphins, 1,625 species of fish, 33 species of sharks and rays, and 600 types of hard and soft coral call this wondrous water - world home.

FIU scientists have become increasingly concerned about the vulnerable populations of sharks and rays around the world and especially in Belize, where Global FinPrint lead scientist and FIU professor Demian Chapman has worked for nearly two decades on shark conservation.

According to a press release from FIU, researchers deployed baited remote underwater videos (BRUVs) to monitor the abundance and distribution of sharks and rays, and surprisingly found thriving populations of rays after analyzing the hundreds of hours of video footage.

We ask all guides and instructors to write down information like size and gender of the sharks and rays they've seen during their dives.

Raja Ampat alone is home to over fifteen - hundred different species of fish and a large variety of sharks and rays, including wobbegong sharks, oceanic manta rays as well as the reef manta rays.

Last summer I tagged and researched various species of sharks and rays for a week in Clearwater, Florida, and will be participating in the same program for one month this summer!

His main research interest is in the sensory neuroethology of fish, in particular flow sensing and the electrosense of sharks and rays.

A conductive material found in the electric field - sensing organs of sharks and rays is inspiring new technology.

Deep - sea skates, relatives of sharks and rays, were discovered laying their eggs adjacent to hot water from hydrothermal vents.

A new study by an international team of scientists, published in Nature Ecology & Evolution, warns that many large fish species, including many of the sharks and rays of Europe, are threatened with extinction.

He plans to publish results from similar ultrasounds on two other species of sharks and rays.

«This higher proportion of genes involved in adaptive (antibody) immunity function could be a key reason behind the infection fighting and fast wound - healing abilities of sharks and rays,» said Professor Stanhope.

Delegates also approved adding 21 species of sharks and rays to the convention's list of protected species.

A compromise in which the technique is greatly curtailed is the most likely outcome, says Irene Kingma, director of the Dutch Elasmobranch Society in Amsterdam, which promotes the study and conservation of sharks and rays.

The research project looks to fill a critical information gap about the diminishing number of sharks and rays in our oceans.

Shedd is a collaborator with Global FinPrint, which recruits citizen scientists to help fill a critical information gap about the declining number of sharks and rays in the world's oceans.

Shark populations around the world started to plummet, with more than a quarter of shark and ray species now at risk of extinction.

Painstakingly sorting through the swamp matter, they found that it did indeed contain «super high yields» of shark and ray fossils.

The research team found that compared to bony fishes, the four species of sharks and ray examined not only had a much higher proportion of genes involved in antibody - mediated immunity, but also that several of the infection immunity - related genes were expressed only in the sharks and rays.

'' [W] e showed our data to a bunch of shark experts, and they had seen anecdotal evidence of shark and ray egg cases near hydrothermal vents,» Phillips said.

In November, the World Conservation Union warned that more than 40 percent of shark and ray species in the Mediterranean were threatened with extinction because of intense fishing pressure, including the continued use of drift nets, which kill many sharks and rays even when they are not the target of the fishing effort.

Not exact matches

«It's exquisitely beautiful; I'll see spotted eagle rays, giant leatherback turtles and a number of species of shark, such as nurse sharks and lemon sharks,» he tells the Telegraph.

Meanwhile, development projects such as marinas and residential buildings constructed in California's estuaries have pushed stingrays out of their traditional habitats and into coastal waters, where the rays provide easy food for baby white sharks.

Chelski - shark citeh - whale Arsenal - dolphin spuds - gold fish Leicester - catfish manure - ray finned bony fish soton - eel everton — sturgeons the rest are merely composed of herrings, silversides and minnows!

Fish, sea turtles, hammerhead sharks, and rays interact amongst the reefs, bringing you and your kids face to face with a tremendous array of colors and creatures.

The aquarium is home to many shark and ray species, some of which are critically endangered in the wild.

Kent is passionate about ancient sharks and rays, but he could not do that work because UMD's Department of Entomology, where he had his post, did not have a position for cartilaginous fish paleontology.

With nothing but some scuba equipment and an intrepid spirit, the two cofounded Paleo Quest and SharkFinder, which enlist students to hunt for fossils of ancient sharks, rays, and invertebrates.

And for those wondering where you'll get your shark fix when the week comes to a close, not to worry: A digitally remastered version of the classic thriller Jaws comes out on Blu - ray August 14.

But if there is no reaction, which was the case when Bronson and Maisey performed the test, it is likely made from calcium phosphate, as are the fossilized skeletons of cartilaginous fish like sharks and rays.

«The findings bring into question how important sharks and rays are to the alligator diet as well as the fatality of some the juvenile sharks when we think about population management of endangered species,» Nifong said.

The proposals would move the oceanic whitetip shark, the porbeagle shark, all three species of hammerheads and all species of manta rays to an Appendix II listing, which requires anyone wishing to trade them to first procure a permit.

One in six shark and ray species are classified as «threatened» by the International Union for Conservation of Nature, but one in three species of open - ocean sharks are threatened.

«For sharks and rays, it would make a world of difference,» Pew's Wilson says.

WCS has been working in the northwest of Madagascar for over 10 years to create marine protected areas to protect marine turtles and other important marine ecosystems and species including coral reefs, seagrasses, dugongs and sharks and rays.

With most other predators now out of the picture, early sharks and ray - finned fish like Fouldenia used their crushing jaws to dine on these spiny, stalked and hard - shelled creatures.

Sharks» skeletons are made of cartilage, placing them along with rays and skates in a group of jawed vertebrates called cartilaginous fish.

The authors looked at the ranges of some 17,348 species of marine life, including whales, sharks rays and fish, and found that 97.4 percent have less than 10 percent of their range represented in marine protected areas.

Scallop and clam fisheries have also collapsed, in part because the overfishing of sharks has set off a population explosion of rays, which eat mollusks.

Cartilaginous fish related to sharks and rays; mythical monster made of two animals; organism made of genetically distinct tissues.

These expeditions revealed a zoo of biofluorescent fishes — from both cartilaginous (e.g. sharks and rays) and bony (e.g. eels and lizardfishes) lineages — especially among cryptically patterned, well - camouflaged species living in coral reefs.

Marine mammals, sharks and rays, polar bears, and some birds are among the 31 species that will get greater protection under a deal reached earlier this week by more than 100 countries at a meeting of the Convention on the Conservation of Migratory Species of Wild Animals (CMS), a U.N. body.

Meekan's team thinks riding on top of bigger rays might help pink whiprays look larger than they really are, and might break up their silhouettes — deterring predators such as hammerhead sharks.

In cores from numerous ocean basins, they found that while the numbers of sharks remained steady before and after the extinction event, the ratio of ray - finned fish teeth to shark teeth and scales gradually rose, first doubling then becoming eight times more abundant 24 million years after the extinction event.