Featured Research

from universities, journals, and other organizations

20 New Species Of Sharks, Rays, Discovered In Indonesia

Date:
March 1, 2007
Source:
CSIRO Australia
Summary:
At least 20 new species have been discovered in the first comprehensive survey of Indonesia's sharks and rays since the 1850s. The five-year survey of catches at local fish markets provided the first detailed description of Indonesia’s shark and ray fauna – information which is critical to their management in Indonesia and Australia.

A Hortle's Whipray - only found in West Papua. (Credit: Image courtesy of CSIRO Australia)
Credit: Image courtesy of CSIRO Australia

At least 20 new species have been discovered in the first comprehensive survey of Indonesia’s sharks and rays since the 1850s.

The five-year survey of catches at local fish markets provided the first detailed description of Indonesia’s shark and ray fauna – information which is critical to their management in Indonesia and Australia.

Based on the survey’s findings, the Australian Centre for International Agricultural Research has published a 330-page, full-colour, bilingual ‘field guide’ entitled: Economically Important Sharks and Rays of Indonesia.

“Indonesia has the most diverse shark and ray fauna and the largest shark and ray fishery in the world, with reported landings of more than 100 000 tonnes a year,” says one of the guide’s co-authors, Dr William White of CSIRO Marine and Atmospheric Research. “Before this survey, however, there were vast gaps in our knowledge of sharks and rays in this region.

“Good taxonomic information is critical to managing shark and ray species, which reproduce relatively slowly and are extremely vulnerable to over-fishing. It provides the foundation for estimating population sizes, assessing the effects of fishing and developing plans for fisheries management and conservation.”

The survey represents the first in-depth look at Indonesia’s sharks and rays since Dutch scientist Pieter Bleeker described more than 1100 fish species in 1842–1860. Many of Bleeker’s proposed new shark and ray species were rejected by his peers who were skeptical of such high levels of diversity.

“The five-year survey of catches at local fish markets provided the first detailed description of Indonesia’s shark and ray fauna – information which is critical to their management in Indonesia and Australia.”

After more than 250 days ‘in the field’, Dr White and his colleagues agreed with Bleeker’s findings and uncovered further taxonomic riches.

From 2001–2006, they photographed and sampled more than 130 species on 22 survey trips to 11 ports across Indonesia. More than 800 specimens were lodged in reference collections at the Museum Zoologicum Bogoriense at Cibinong, Java, and the Australian National Fish Collection at Hobart.

Six of their discoveries have now been formally described. These include two species found only in Bali: the Bali Catshark and Jimbaran Shovelnose Ray, and one found only in West Papua: the Hortle’s Whipray.

The survey was part of a broader project working towards improved management of sharks and rays in Indonesia and Australia. The project documented the value of sharks and rays to the small-scale fishing sector, helped to develop a National Plan of Action for sharks and rays and enhanced Indonesian capacity in fisheries research. Participants were: CSIRO, Murdoch University, Queensland Department of Primary Industries and Fisheries and Indonesia’s Research Centre for Capture Fisheries and the Indonesian Institute of Sciences.


Story Source:

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


Cite This Page:

CSIRO Australia. "20 New Species Of Sharks, Rays, Discovered In Indonesia." ScienceDaily. ScienceDaily, 1 March 2007. <www.sciencedaily.com/releases/2007/03/070301085647.htm>.
CSIRO Australia. (2007, March 1). 20 New Species Of Sharks, Rays, Discovered In Indonesia. ScienceDaily. Retrieved October 21, 2014 from www.sciencedaily.com/releases/2007/03/070301085647.htm
CSIRO Australia. "20 New Species Of Sharks, Rays, Discovered In Indonesia." ScienceDaily. www.sciencedaily.com/releases/2007/03/070301085647.htm (accessed October 21, 2014).

Share This



More Plants & Animals News

Tuesday, October 21, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

'Cadaver Dog' Sniffs out Human Remains

'Cadaver Dog' Sniffs out Human Remains

AP (Oct. 21, 2014) Where's a body buried? Buster's nose can often tell you. He's a cadaver dog, specially trained to find human remains and increasingly being used by law enforcement and accepted in courts. These dogs are helping solve even decades-old mysteries. (Oct. 21) Video provided by AP
Powered by NewsLook.com
White Lion Cubs Born in Belgrade Zoo

White Lion Cubs Born in Belgrade Zoo

AFP (Oct. 20, 2014) Two white lion cubs, an extremely rare subspecies of the African lion, were recently born at Belgrade Zoo. They are being bottle fed by zoo keepers after they were rejected by their mother after birth. Duration: 00:42 Video provided by AFP
Powered by NewsLook.com
Traditional Farming Methods Gaining Ground in Mali

Traditional Farming Methods Gaining Ground in Mali

AFP (Oct. 20, 2014) He is leading a one man agricultural revolution in Mali - Oumar Diatabe uses traditional farming methods to get the most out of his land and is teaching others across the country how to do the same. Duration: 01:44 Video provided by AFP
Powered by NewsLook.com
Goliath Spider Will Give You Nightmares

Goliath Spider Will Give You Nightmares

Buzz60 (Oct. 20, 2014) An entomologist stumbled upon a South American Goliath Birdeater. With a name like that, you know it's a terrifying creepy crawler. Sean Dowling (@SeanDowlingTV) has the details. 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