With
the shark population in serious peril, and other countries and states passing legislation to protect sharks, New York should be a leader in extending protection to these magnificent animals.»
To get a better picture of the white
shark population in the Eastern North Pacific, the team decided to examine several other known aggregation sites, from Mexico into British Columbia and Alaska.
«Great white
shark population in good health along California coast.»
Ben G. Saroy, Head of Cendrawasih Bay National Park Authority, agreed, «Cendrawasih Bay, home to the biggest whale
shark population in Indonesia, requires comprehensive information to manage this endangered species.
From the beach, on a clear day there are unparalleled views of the Farallon Islands, home to one of the largest great white
shark populations in North America.
Filmed in visually stunning, high definition video, Sharkwater takes you into the most shark rich waters of the world, exposing the exploitation and corruption surrounding the world's
shark populations in the marine reserves of Cocos Island, Costa Rica and the Galapagos Islands, Ecuador.
Not exact matches
Trump wants to eradicate the threat of terrorism as eagerly as he once said he wanted to eradicate the threat of
sharks — even though,
in a
population of more than 320 million, neither generally results
in a particularly large number of deaths
in the United States.
The researchers also made another unexpected discovery, uncovering a significant
population of the rare leaf scaled sea snake
in the lush seagrass beds of
Shark Bay.
Although the authors don't know for sure whether
shark numbers have gone up, they speculate that the
population could have been boosted by fishing discards before all fishing
in the area was banned
in 2006.
Dr Sara Andreotti, a marine biologist
in the Department of Botany and Zoology at SU, have collected over 5000 photographic images of the dorsal fins of white
sharks along the South African coastline as part of her research on the
population structure of South Africa's great white
sharks.
«Certainly anytime we have a situation like that where there's such overwhelming media attention, it's going to leave a memory
in the
population,» says George Burgess, curator of the International
Shark Attack File at the Florida Museum of Natural History, who fielded 30 to 40 media calls a day that summer.
«
In addition to the unpredictability of a
shark attack over such a large area, it is possible that fishing of tiger
sharks has reduced their
populations to levels that no longer pose a significant threat to turtles, with other factors becoming more important such as the need to avoid boat strikes»
Bear says that sevengill
sharks did not start appearing
in the San Diego area until 2008, but that the
population has since grown steadily.
So far, the information has been cited
in more than 50 scientific publications; it has helped researchers analyze
shark population declines and identify two new species of colorful fish — the Florida barred hamlet (Hypoplectrus floridae) and the contoy hamlet (H. ecosur).
Once they had a sense of how many
sharks were
in the densest communities and combined that with previous data on the
sharks» movements, they modeled an estimate for the
population as a whole.
* Correction, 22 November, 12:19 p.m.: The story has been changed to reflect that the
population estimate of whale
sharks corresponded to individuals
in one genetically similar group.
Using only the DNA from sloughed - off cells floating
in the ocean, scientists have been able to determine the
population size and genetic properties of one of the world's largest and most mysterious animals: the whale
shark.
Hammerhead
sharks, which have recently received new protections from the UN Convention on the Conservation of Migratory Species of Wild Animals, are experiencing drastic
population declines
in excess of 90 %
in several parts of world.
«Anyone who has spent time on the ocean over the last 20 or 30 years will tell you that they used to see lots of
sharks and that they don't anymore,» says Boris Worm, a marine conservation biologist and leading expert
in shark populations at Dalhousie University
in Canada.
In the 1970s and 1980s, relative abundance data indicated that white
shark populations declined, likely due to expanding commercial and recreational
shark fisheries.
In many
populations, 75 - 100 per cent of
sharks are parasitized.
This study also increased the number of genetic markers scientist can use to study the
population biology of great white and related
sharks, Stanhope said, by a thousandfold, from which they hope to further expand knowledge of these fascinating animals, many of which are
in urgent need of conservation.
In fact, the increase in the number of juvenile sharks is a positive sign of a recovering shark populatio
In fact, the increase
in the number of juvenile sharks is a positive sign of a recovering shark populatio
in the number of juvenile
sharks is a positive sign of a recovering
shark population.
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.
«We see this as being an important part of new technology coming online to better track the health of
shark populations, better understand their behavior and help do a better job with their conservation,» said co-author Paul DeSalles, a researcher
in McCauley's lab.
Burgess and his colleagues assembled a 10 - member team with expertise
in all facets of
shark biology: demography,
population dynamics, life history, tagging and movements, fishery biology and conservation, and mathematical modeling.
Another possibility is that the recovery of seal and sea lion
populations off the coast of California, thanks again to successful marine protection policies, are giving the
sharks more reason to stay
in these waters.
In fact, the diversity of Architeuthis is lower than that for any other marine animal, except one — the basking
shark Cetorhinus maximus, whose current
population is thought to have rebounded from a small number of individuals.
The study highlights the need for more research on whale
sharks as well as a multinational, cooperative effort to conserve
populations in both the Red Sea and Indian Ocean.
In the largest study on the genetics of whale sharks conducted to date, researchers found that the world's biggest fish likely exist in 2 distinct populations with minimal connectivity between the Indo - Pacific and the Atlantic Ocea
In the largest study on the genetics of whale
sharks conducted to date, researchers found that the world's biggest fish likely exist
in 2 distinct populations with minimal connectivity between the Indo - Pacific and the Atlantic Ocea
in 2 distinct
populations with minimal connectivity between the Indo - Pacific and the Atlantic Ocean.
The East African humpback whale
population is growing, so we might see more
shark attacks
in future, Dicken's paper suggests.
Using the largest data set
in the Northwest Atlantic, we show rapid large declines
in large coastal and oceanic
shark populations.
The researchers went to Palmyra, a remote atoll
in the central Pacific Ocean, where
shark populations are healthy, fishing is not allowed and the majority of its near pristine underwater world is rarely dived.
Even
in California, where monitoring is relatively good, estimates of the white
shark population vary by an order of magnitude, from 500 to 5,000.
In the future, genetic analyses can greatly increase researchers» still very limited understanding of whale
shark ecology and the status of what appears for now to be at least 2
populations.
A team of scientists from Canada and Australia has discovered that a decline
in shark populations is detrimental to coral reefs.
A new scientific study has identified two distinct
populations of white
shark at the east and west of Bass Strait
in Australian waters, prompting researchers to suggest the huge fi...
An international team of researchers studying globally declining
shark populations report today that they used carbon isotopes as biochemical markers
in shark muscle tissue...
Earlier
in 2014, myself and several members of our lab attended a conference
in South Africa and then spent up to 4 weeks
in the field conducting experiments with the
populations of great white
sharks off the coast.
Her only companions are the scientists studying there, odd and quirky refugees from the mainland living
in rustic conditions; they document the fish
populations around the island, the bold trio of
sharks called the Sisters that hunt the surrounding waters, and the overwhelming bird
population who, at times, create the need to wear hard hats as protection from their attacks.
In this video I head underwater to check out the local
population of manta rays, whale
sharks, and coral life; meet up with some new friends -LSB-...]
While there I head underwater to check out the local
population of manta rays, whale
sharks, and coral life; meet up with some new friends who make their living selling art
in town; and recuperate from a bout of malaria I unfortunately caught while there.
In this video I head underwater to check out the local population of manta rays, whale sharks, and coral life; meet up with some new friends who make their living selling art in town; and recuperate from a bout of malaria I unfortunately caught while ther
In this video I head underwater to check out the local
population of manta rays, whale
sharks, and coral life; meet up with some new friends who make their living selling art
in town; and recuperate from a bout of malaria I unfortunately caught while ther
in town; and recuperate from a bout of malaria I unfortunately caught while there.
Assist the Research Team of the Gili
Shark & Marine Conservation Project, who work on a variety of marine citizen science research projects with the aim of improving shark populations and awareness in the Gili Islands and Indon
Shark & Marine Conservation Project, who work on a variety of marine citizen science research projects with the aim of improving
shark populations and awareness in the Gili Islands and Indon
shark populations and awareness
in the Gili Islands and Indonesia.
In partnership with the
Shark Research group at Mote Marine Laboratory, Georgia Aquarium staff will study the
population size, make - up and movements near Sarasota, to build vital knowledge about these poorly understood but beautiful creatures.
She has monitored pinniped (seal and sea lion)
populations at Point Reyes and elsewhere
in central California, and has never personally seen an attack so close, though others who study and tag
sharks have.
The future focus for field research will be to explore connections to
populations of whale
sharks found
in more remote places on Earth.
Gansbaai is a small fishing village
in the Western Cape, famous for its huge
population of Great White
Sharks.
These efforts, despite damaging the
shark population, were shown to be ineffective
in decreasing the number of interactions between humans and tiger
sharks.
A registered non-profit organisation, Sharklife addresses the alarming exploitation of both
shark populations and ocean fisheries
in South African waters.