Featured Research

from universities, journals, and other organizations

Fiji's largest marine reserve swarming with sharks

Date:
July 15, 2013
Source:
Wildlife Conservation Society
Summary:
Researchers have found that Fiji’s largest marine reserve contains more sharks than surrounding areas that allow fishing, evidence that marine protected areas can be good for sharks.

Researchers from the Wildlife Conservation Society and the University of Western Australia have found that Fiji's largest marine reserve contains more sharks than surrounding areas that allow fishing, evidence that marine protected areas can be good for sharks.

Related Articles


In a study of the no-take reserve's shark populations, the researchers found that the number of sharks in Namena Reserve -- located on the southern coast of Fiji's Vanua Levu Island -- is two to four times greater than in adjacent areas where fishing is permitted.

The study appears in a recent edition of the journal Coral Reefs. The authors include: Jordan Goetze of the Wildlife Conservation Society and the University of Western Australia; and Laura Fullwood of the University of Western Australia.

The researchers conducted their study during a three-week period (July 4-28) in 2009 in Namena, a 60-square-kilometer reserve established in 1997 and managed by local communities. In order to survey the sharks, Goetze and the WCS Fiji team used stereo baited remote underwater video systems to record data at eight sites within the reserve and eight outside the reserve at both shallow and deeper depths (between 5-8 meters, and 25-30 meters respectively).

"The study not only provides evidence that Fiji's largest marine reserve benefits reef sharks, but achieves this in a non-destructive manner using novel stereo video technology," said Goetze, the lead author of the paper.

The 60-minute video segments taken captured images of five different species of reef shark, providing the researchers with data on shark abundance. In addition, Goetze and the research team also were able to estimate the length and size of the sharks whenever the animals were within eight meters of the camera, enabling them to generate estimates on biomass for Namena Reserve.

Outside the reserve, in areas where fishing is permitted, the researchers found fewer sharks. The researchers note that, because local Fiji communities traditionally considered sharks to be sacred, eating them is typically taboo. The most likely driver of higher shark densities within the reserve, assert the authors, is the significantly higher availability of prey fish that WCS researchers have found within the reserve boundaries compared with adjacent areas.

As demand for shark products grows, higher prices are driving some locals to catch sharks, while Fiji shark populations are also vulnerable to foreign fishing fleets. Worldwide, increasing rates of harvesting are leading to the depletion of many of the world's shark species.

"The news from Fiji gives us solid proof that marine reserves can have positive effects on reef shark populations," said Dr. Caleb McClennen, Director of WCS's Marine Program. "Shark populations are declining worldwide due to the demand for shark products, particularly fins for the Asian markets. We need to establish management strategies that will protect these ancient predators and the ecosystems they inhabit."

The study was made possible by the generous support of the David and Lucile Packard Foundation, the Gordon and Betty Moore Foundation, the Stavros Niarchos Foundation, and the University of Western Australia (UWA) Marine Science Honours program.


Story Source:

The above story is based on materials provided by Wildlife Conservation Society. Note: Materials may be edited for content and length.


Cite This Page:

Wildlife Conservation Society. "Fiji's largest marine reserve swarming with sharks." ScienceDaily. ScienceDaily, 15 July 2013. <www.sciencedaily.com/releases/2013/07/130715151056.htm>.
Wildlife Conservation Society. (2013, July 15). Fiji's largest marine reserve swarming with sharks. ScienceDaily. Retrieved December 19, 2014 from www.sciencedaily.com/releases/2013/07/130715151056.htm
Wildlife Conservation Society. "Fiji's largest marine reserve swarming with sharks." ScienceDaily. www.sciencedaily.com/releases/2013/07/130715151056.htm (accessed December 19, 2014).

Share This


More From ScienceDaily



More Plants & Animals News

Friday, December 19, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Navy Unveils Robot Fish

Navy Unveils Robot Fish

Reuters - Light News Video Online (Dec. 18, 2014) The U.S. Navy unveils an underwater device that mimics the movement of a fish. Tara Cleary reports. Video provided by Reuters
Powered by NewsLook.com
Kids Die While Under Protective Services

Kids Die While Under Protective Services

AP (Dec. 18, 2014) As part of a six-month investigation of child maltreatment deaths, the AP found that hundreds of deaths from horrific abuse and neglect could have been prevented. AP's Haven Daley reports. (Dec. 18) Video provided by AP
Powered by NewsLook.com
When You Lose Weight, This Is Where The Fat Goes

When You Lose Weight, This Is Where The Fat Goes

Newsy (Dec. 17, 2014) Can fat disappear into thin air? New research finds that during weight loss, over 80 percent of a person's fat molecules escape through the lungs. Video provided by Newsy
Powered by NewsLook.com
The Hottest Food Trends for 2015

The Hottest Food Trends for 2015

Buzz60 (Dec. 17, 2014) Urbanspoon predicts whicg food trends will dominate the culinary scene in 2015. Mara Montalbano (@maramontalbano) has the story. Video provided by Buzz60
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Plants & Animals

Earth & Climate

Fossils & Ruins

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins