mongabay.com logo About  |   Contact  |  Mongabay on Facebook  |  Mongabay on Twitter  |  Free newsletter
Rainforests | Tropical fish | Environmental news | Blog | For kids | Madagascar | Photos | Non-English languages | Tropical Conservation Science
SHARE:
print


86 percent of dolphins and whales threatened by fishing nets
Jeremy Hance
mongabay.com
February 07, 2010



A new report from the United Nations Environment Program (UNEP) finds that almost 9 out of 10 toothed whales—including dolphins and porpoises—are threatened by entanglement and subsequent drowning from large-scale fishing operations equipment, such as gillnets, traps, longlines, and trawls. These operations threaten the highest percentage (86 percent) of the world's toothed whales.

"During the International Year of Biodiversity, the Convention on Migratory Species continues to address major threats such as by-catch, ship strikes, ocean noise impacts and climate change to safeguard these charismatic marine mammals," said UNEP and the Convention on Migratory Species (CMS) Executive Secretary Elizabeth Mrema.

Living throughout the globe in both marine and freshwater habitats, many toothed whales remain mysterious to scientists. The report concludes that 41 of the known 71 toothed whales are so little-known that researchers are not certain if they are threatened of not.

Lack of food and changes in diets due to overfishing by humans currently threatens 13 species, while 14 species are threatened by collisions with ships. The ingestion of plastic and other pollutants have been reported in a total of 48 species (nearly 70 percent).

Currently six species are considered on the edge of extinction. The most threatened is the vaquita with only 100-150 individuals left in the Bay of California. The baiji, once abundant in the Yangtze River, is considered extinct.







Related articles

Gone: a look at extinction over the past decade

(01/03/2010) No one can say with any certainty how many species went extinct from 2000-2009. Because no one knows if the world's species number 3 million or 30 million, it is impossible to guess how many known species—let alone unknown—may have vanished recently. Species in tropical forests and the world's oceans are notoriously under-surveyed leaving gaping holes where species can vanish taking all of their secrets—even knowledge of their existence—with them.


The Yangtze River may have lost another inhabitant: the Chinese paddlefish

(10/22/2009) In December of 2006 it was announced that the Yangtze River dolphin, commonly known as the baiji, had succumbed to extinction. The dolphin had survived on earth for 20 million years, but the species couldn't survive the combined onslaught of pollution, habitat loss, boat traffic, entanglement in fishing hooks, death from illegal electric fishing, and the construction of several massive dams. Now, another flagship species of the Yangtze River appears to have vanished.


No killing yet as season begins for dolphin slaughter made famous by The Cove

(09/02/2009) Due to the new documentary The Cove, the town of Taiji, Japan is suddenly famous, or perhaps more aptly, infamous. Winner of the documentary award at the Sundance Film Festival, the film uncovers a cove in Taiji where over two thousand dolphins are slaughtered every year due to the billion dollar dolphin entertainment industry. Their dolphin's meat is then labeled as fish and given to children for school lunches, even though as top level predators the meat is heavily tainted with mercury.






CITATION:
Jeremy Hance
mongabay.com (February 07, 2010). 86 percent of dolphins and whales threatened by fishing nets. http://news.mongabay.com/2010/0207-hance_toothedwhales.html?utm_campaign=General+news&utm_medium=Twitter&utm_source=SNSanalytics


Tags:
marine conservation marine mammals mammals wildlife animals in-situ conservation conservation Fishing overfishing bycatch oceans rivers extinction endangered species saving species from extinction pollution environment green jeremy hance

print



Environmental news index | RSS | News Feed | Twitter | Home


Advertisements:





Mongabay Store
Wildlife of Madagascar T-shirt
Wildlife of Madagascar T-shirt
Bold and Dangerous - Pygmy tyrant t-shirts
Bold and Dangerous - Pygmy tyrant
Love me before I'm gone - Gladiator frog t-shirts
Love me before I'm gone - Gladiator frog
Licking this frog may make you crazy t-shirts
Licking this frog may make you crazy




DON'T LIKE ADS? Become a mongabay supporter


WEEKLY NEWSLETTER
Email:


RECENT FEATURES
As Amazon deforestation falls, food production risesAs Amazon deforestation falls, food production rises
Biggest environmental news stories of 2011Biggest environmental news stories of 2011
The year in review for rainforestsThe year in review for rainforests
Our top nature pictures of 2011Our top nature pictures of 2011


POPULAR PAGES
Rainforests
Rain forests
Amazon deforestation
Deforestation
Deforestation stats
Why rainforests matter
Saving rainforests
Amazon rainforest
Congo rainforest
Deforestation data
Rainforest canopy

Special sections
New Guinea
Finding new species
Sulawesi
Madagascar
Borneo
REDD

News
Most popular articles
Worth saving?
Forest conservation
Cell phones in Africa
Seniors helping Africa
Saving orangutans in Borneo
Palm oil
Amazon palm oil
Future of the Amazon
Cane toads
Dubai environment
Investing to save rainforests
Visiting the rainforest
Biomimicry
Defaunation
Blue lizard
Extinction debate
Extinction crisis
Industrial deforestation
Save the Amazon
Rainforests & REDD
Brazil's Amazon plan
Avatar story
Amazon ranching

News topics
Amazon
Biofuels
Brazil
Carbon Finance
Conservation
Climate Change
Deforestation
Energy
Happy-upbeat
Indonesia
Interviews
Oceans
Palm oil
Rainforests
Wildlife
MORE TOPICS



Non-English Sites
Chinese
French
German
Indonesian
Italian
Portuguese
Spanish
Other languages

Nature Blog Network







Photos
Brazil photos
Brazil

China photos
China

Colombia photos
Colombia

Costa Rica photos
Costa Rica

Deforestation photos
Deforestation

Gabon photos
Gabon

India photos
India

Indonesia photos
Indonesia

Kenya photos
Kenya

Madagascar photos
Madagascar

Peru photos
Peru

Peru photos
Rainforest



ABOUT
Mongabay.com seeks to raise interest in and appreciation of wild lands and wildlife, while examining the impact of emerging trends in climate, technology, economics, and finance on conservation and development (more)

Help support mongabay.com when you buy from Amazon.com


CALENDARS



BOOKS BY MONGABAY AUTHORS
Rainforest book for kids Conservation in an age of mass extinction


FREE WEEKLY NEWSLETTER



HIGH RESOLUTION PHOTOS / PRINTS








Copyright mongabay 2010

Carbon dioxide (CO2) emissions generated from mongabay.com operations (server, data transfer, travel) are mitigated through an association with Anthrotect,
an organization working with Afro-indigenous and Embera communities to protect forests in Colombia's Darien region.
Anthrotect is protecting the habitat of mongabay's mascot: the scale-crested pygmy tyrant.