Navigation Links
Leading scientists rank endangered dolphins, porpoises most in need of immediate action

Leading marine scientists for the first time have assessed dolphin and porpoise populations around the world which are severely threatened by entanglement in fishing gear and recommended nine urgent priorities for action in a report commissioned by the World Wildlife Fund. These nine projects highlight species threatened by bycatch that will most likely benefit from immediate action and will continue to languish without intervention.

The list of dolphins and porpoises that could recover if changes to fishing methods and other conservation efforts are made includes harbor porpoises in the Black Sea, where thousands of porpoises are killed each year; Atlantic humpback dolphins off the coast of west Africa; and franciscana dolphins in South America. Most of the species on the list are threatened by the widespread use of one type of fishing gear ?gillnets. These nets are difficult for dolphins and porpoises to spot visually or detect with their sonar, so they may become tangled in the netting or in the ropes attached to the nets.

"Almost 1,000 whales, dolphins and porpoises die every day in nets and fishing gear. Some species are being pushed to the brink of extinction," said Karen Baragona of WWF's species conservation program. "We developed this ranking to help governments and aid agencies target their investments for the best return."

The report will be submitted to the International Whaling Commission (IWC) at its annual meeting next week in South Korea. The scientific committee of the IWC includes many of the world's leading marine scientists, who last year endorsed the methodology of the WWF report.

The U.S. Commission on Ocean Policy last year noted that bycatch is the greatest threat globally to whales, dolphins and porpoises, known scientifically as cetaceans. Bycatch is the accidental capture in fishing gear of species--including cetaceans--that fishermen do not intend to catch. Because cetaceans need to come to the surface to br eathe, if they are trapped underwater in fishing nets, they die. In 2003, researchers estimated that more than 300,000 cetaceans are killed in fishing gear each year in the world's oceans.

"Rather than simply identifying the species or populations at greatest risk or the geographical locations where the bycatch problem is most severe, the group was asked to emphasize opportunities, such as situations where the prospects for successful intervention appeared especially good," said Randall Reeves, lead author of the report and the chairman of the IUCN Species Survival Commission's Cetacean Specialist Group. "It's crucial to give guidance to agencies and organizations on how they should invest their resources for bycatch mitigation."

Between 1993 and 2003, fisheries in the United States introduced changes that reduced cetacean bycatch to one-third of its previous levels. But so far little of this success has been transferred to other countries, and in much of the rest of the world, progress on bycatch mitigation has been slow or nonexistent.

"These accidental deaths can be significantly reduced, often with very simple, low-cost solutions. The United States and several other countries have significantly reduced bycatch in their waters. Slight modifications in fishing gear can mean the difference between life of death for dolphins," said Baragona. "But for many of these threatened dolphins and porpoises, we need to act now before it's too late."

In April, WWF's International Smart Gear Competition awarded a prize to a promising gillnet design concept using glowing ropes and stiffer nets that may help cetaceans see gillnets in order to avoid them and to escape if they do accidentally swim into the net.

Species and populations designated in the report as among the top priorities for investment of resources are:

* Irrawaddy dolphins in the crab net/trap fishery in Malampaya Sound, Philippines
* Irrawaddy dolphins in gillnets in the Mekong, Mahakam and Ayeyarwady rivers and in Chilka and Songkhla lakes, Southeast Asia
* Indo-Pacific humpback dolphins and Indo-Pacific bottlenose dolphins in drift and bottom-set gillnets on the south coast of Zanzibar (Tanzania)
* Harbor porpoises in coastal gillnets in the Black Sea
* Spinner dolphins and Fraser's dolphins in large-mesh driftnets and purse seines in the Philippines
* Atlantic humpback dolphins in coastal gillnets in the northern Gulf of Guinea (Ghana, Togo)
* Burmeister's porpoises in artisanal gillnets in Peru
* Franciscana dolphins in coastal gillnets in Argentina, Uruguay, and Brazil
* Commerson's dolphins in coastal gillnets and midwater trawls in Argentina


Source:World Wildlife Fund

Related biology news :

1. Leading lampreys to slaughter: Pheromone for scourge of Great Lakes identified
2. Leading reason for corneal transplants comes into focus
3. Wisconsin scientists grow critical nerve cells
4. UCSB scientists probe sea floor venting to gain understanding of early life on Earth
5. UAB scientists discover the origin of a mysterious physical force
6. Fox Chase Cancer Center scientists identify immune-system mutation
7. Weizmann Institute scientists develop a new approach for directing treatment to metastasized prostate cancer in the bones.
8. U-M scientists find genes that control growth of common skin cancer
9. UCLA scientists transform HIV into cancer-seeking missile
10. RNA project to create language for scientists worldwide
11. Carnegie Mellon scientists develop tool that uses MRI to visualize gene expression in living animals
Post Your Comments:

(Date:10/9/2015)... Oct. 09 2015 ... of the "Samsung Galaxy S6 Fingerprint ... to their offering. --> ... "Samsung Galaxy S6 Fingerprint Sensor - ... offering. --> Research and Markets ...
(Date:10/7/2015)... --> --> According to ... quarter 2015 amounted to around 960 MSEK. This exceeds the ... communicated 20 August 2015. --> ... continued growing demand for the company,s products, the revenues for ... during the third quarter. The revenue guidance for 2015 is ...
(Date:10/5/2015)... , October 5, 2015 ... update for NXT-ID, Inc. (NASDAQ: NXTD ), a ... market. --> ) releases ... (NASDAQ: NXTD ), a biometric authentication company focused ... SoundView Technology Group ( ) releases ...
Breaking Biology News(10 mins):
(Date:10/11/2015)... ... October 11, 2015 , ... Intelligent Implant ... officially launched and multiple surgeries have been completed with this new posterior thoracolumbar ... Neuroscience & Spine Center of the Carolinas. The Revolution™ Spinal System pioneers ...
(Date:10/9/2015)... , Oct. 9, 2015 On October ... the Congressional Record her statement recognizing the third annual ... 11-17. IPAW is sponsored by the Plasma Protein ... is designed to:   , Raise global awareness ... plasma donors in saving and improving lives , ...
(Date:10/9/2015)... 2015  DePuy Synthes Trauma* announced today the U.S. ... Technology**, the only pre-hydrated demineralized cancellous bone tissue ... and ankle, hand and wrist), including fusion, and for ... the 2015 Orthopaedic Trauma Association (OTA) Annual Meeting. ... new bone growth) and osteoinductive 2,3 (stimulates new ...
(Date:10/9/2015)... San Francisco, CA (PRWEB) , ... October 09, 2015 , ... ... with a study that aims to better understand the relationship between weight management and ... more frequently and more accurately from participants using an iPhone app. , The uBiome ...
Breaking Biology Technology: