earthplatform.com

Results 1 - 10 from 123 for shark populations in 0.531 sec.

Shark Conservation and Ecology
Consequently, shark populations have plummeted worldwide to less than 30 percent of their numbers two decades ago. This decline, coupled with the slow reproductive rate of most sharks has prompted great concern about the health of shark populations and an ...
www.nova.edu

Shark DNA Forensics and Fin Trade Research
The increasing demand for shark products, especially shark fins, has led to enormous fishing pressure on sharks worldwide, and considerable concern about the long-term health of shark populations. Addressing these concerns through appropriate management and conservation measures is hampered by the almost complete absence of species-specific catch and trade data. Exacerbating this problem is the ...
www.nova.edu More from this site

The Pelagic Shark Research Foundation - In the News
To cite just one example: sharks eat seals and seals eat salmon. Therefore, a drop in shark populations, leading to an increase in seals, could show up in a depletion of salmon fisheries. ... " While great whites appear to hunt independently, tracking data revealed another kind of social behavior: one shark may approach the prey of another but then quickly leave. During his previous research at the ...
www.pelagic.org

Monterey Bay Aquarium: Conservation and Research - White Shark Conservation
(TOPP) Our Conservation Efforts E-MAIL NEWSLETTER Manage your subscriptions Stay connected by signing up for our e-mail newsletter. Example Conservation Despite popular perceptions of sharks as invincible, shark populations around the world are declining because of overfishing, habitat destruction and other human activities. Of the 350 or so species of sharks thought to exist worldwide, the ...
mbayaq.org

ISAF 2007 Worldwide Shark Attack Summary
Upon review, 71 of these incidents represented confirmed cases of unprovoked shark attack on humans. "Unprovoked attacks" are defined as incidents where an attack on a live ... more attacks each year than in the previous year because more people are in the water. Shark populations, by contrast, actually are declining at a serious rate or are holding at greatly ...
www.flmnh.ufl.edu

Female shark reproduces without sex
The investigation was launched after an unexpected birth in an aquarium at the ... Research Institute team, said the research may have solved a mystery about other species of shark having babies in captivity despite not having contact with males. "It now appears that at ...
nova.edu

Hammerhead shark gives virgin birth
Bemused experts from Northern Ireland and the United States report that the shark housed in an aquarium at the Henry Doorly Zoo in Nebraska, USA gave birth to ... n sharks, and according to the researchers, raises concerns about the genetic health of dwindling shark populations. The virgin birth An investigation was launched after the unexpected birth occurred in December ...
nova.edu More from this site

The Pelagic Shark Research Foundation - In the News : Sharks, rays thrive in Elkhorn Slough's muddy waters - By TOM RAGAN - SENTINEL STAFF WRITER - June 19, 2007
As the top predators in the food chain, they regulate the populations of the species below them. If shark populations get in trouble, it can trigger a cascading effect all the ... team and Jorgensen is doing postdoctoral research in Block's lab. TOPP partners in the shark research consortium include scientists from the University of California-Davis, National Oceanic and Atmospheric Administration, ...
pelagic.org

The Pelagic Shark Research Foundation - In the News : Sharks, rays thrive in Elkhorn Slough's muddy waters - By TOM RAGAN - SENTINEL STAFF WRITER - June 19, 2007
The company wants to market harm-free repellents that will help preserve the shark population. The students scoop the sharks - Atlantic sharpnoses, these days - into the water-filled bins ... " CCU Professor Dan Abel said there are no comprehensive studies showing what would happen if shark populations dwindle, but one study released about six months ago suggests a link between the ...
pelagic.org More from this site

International Whale Shark Project
Help Protect the Future of the World's Largest Fish: The Whale Shark   Whale shark populations are in decline and they may soon face extinction if we don't act now. ... aims to conserve one of the world's most impressive marine creatures and incorporates the Whale Shark Awareness Distinctive Specialty, giving divers and snorkelers essential knowledge and skills to dive or snorkel responsibly ...
projectaware.org