HOME >> BIOLOGY >> NEWS
USGS reports continued decline of California sea otters

The spring 1999 survey of 2,090 California sea otters indicates the population has declined overall by 1.14 percent since the 1998 spring survey, which revealed that there were a total of 2,114. There was, however, a disconcerting decline in the group categorized as independents, which includes all adults and subadults. That category of sea otters declined nearly 5 percent, from 1,955 in spring 1998 to 1,858 in spring 1999.

Spring surveys of California sea otters have shown a steady decrease from a high of 2,377 sea otters counted in 1995. The surveys, conducted cooperatively by scientists of the U.S. Geological Survey, California Department of Fish and Game and Monterey Bay Aquarium with the help of experienced volunteers, cover about 375 miles of California coast, from Half Moon Bay south to Santa Barbara.

"This continuing pattern of decline is of grave concern, especially given our lack of understanding of the cause. The information we gather from these surveys will be used by federal and state wildlife agencies in making important decisions about the management of this sea mammal," said Jim Estes, a USGS scientist with the Western Ecological Research Center in Santa Cruz.

Scientists do not understand why the California sea otter is declining, said Estes. Sea otter deaths, as indicated from beach-cast carcasses, have increased over the same time period that the survey numbers have declined. Additionally, during 1998, 213 stranded sea otters were reported, the highest number ever recorded.

Just what factors are responsible for the increase in deaths is unclear. Disease, contaminants, starvation and entanglement or entrapment in coastal fishing gear may be contributi
'"/>

Contact: Gloria Maender
gloria_maender@usgs.gov
520-670-6896 x1
United States Geological Survey
21-Jun-1999


Page: 1 2 3

Related biology news :

1. APP reports Abraxane(TM) is active in breast cancer patients who failed taxol or taxotere
2. Scientists question reports of massive ant supercolonies in California and Europe
3. Survey reports fall in stem cell transplants for breast cancer
4. VaxGen reports Phase I clinical trial results of anthrax vaccine candidate
5. Immerge reports PERVs most infectious to human cells not part of germ-line DNA of mini-swine
6. By the year 2050, human population could add 2.6 billion people, reports Rockefeller scientist
7. Measles on the rise as vaccinations fall in the UK, Science study reports
8. WCS biologist George Schaller reports surprising increase in Tibets wildlife
9. Clinical study reports findings of combination therapy with DOXIL
10. Europes population has developed new tendency to shrink, Science study reports
11. U of A scientist finds Atlantic salmon escapes higher than government reports

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:3/30/2017)... LOS ANGELES , March 30, 2017  On ... Hack the Genome hackathon at ... This exciting two-day competition will focus on developing health ... experience. Hack the Genome is ... has been tremendous. The world,s largest companies in the ...
(Date:3/30/2017)... 30, 2017 Trends, opportunities and forecast in ... by technology (fingerprint, AFIS, iris recognition, facial recognition, hand ... by end use industry (government and law enforcement, commercial ... banking, and others), and by region ( North ... Asia Pacific , and the Rest of ...
(Date:3/28/2017)... India , March 28, 2017 ... IP, Biometrics), Hardware (Camera, Monitors, Servers, Storage Devices), Software ... Vertical, and Region - Global Forecast to 2022", published ... Billion in 2016 and is projected to reach USD ... between 2017 and 2022. The base year considered for ...
Breaking Biology News(10 mins):
(Date:10/10/2017)... ... October 10, 2017 , ... ... conjugate (ADC) therapeutics, today confirmed licensing rights that give it exclusive global ... technology developed in collaboration with Children’s Hospital Los Angeles (CHLA). Additionally, ...
(Date:10/10/2017)... ... October 10, 2017 , ... ... optimization firm for the life sciences and healthcare industries, announces a presentation by ... Francisco. , The presentation, “Automating GxP Validation for Agile Cloud Platforms,” will present ...
(Date:10/9/2017)... ... 2017 , ... The Giving Tree Wellness Center announces the ... of consumers who are incorporating medical marijuana into their wellness and health regimens. ... operators of two successful Valley dispensaries, The Giving Tree’s two founders, Lilach Mazor ...
(Date:10/6/2017)... Boston, Mass. (PRWEB) , ... October 06, 2017 ... ... spotlight female entrepreneurship within the healthcare and technology sector at their fourth annual ... six panels featuring 30 inspiring speakers and the ELEVATE pitch competition showcasing early ...
Breaking Biology Technology:
Cached News: