Navigation Links
Silent streams? Escalating endangerment for North American freshwater fish
Date:9/9/2008

game species in the

United States, striped bass, has populations on the list.

Regions with the Most Troubled Fish

Regions with especially notable numbers of troubled fish include the Southeastern United States, the mid-Pacific coast, the lower Rio Grande and basins in Mexico that do not drain to the sea.

Hotspots of regional biodiversity and greatest levels of endangerment are the Tennessee (58 fishes), Mobile (57), and the southeastern Atlantic Slope river systems (34). The Pacific central valley, western Great Basin, Rio Grande and rivers of central Mexico also have high diversity and numbers of fish in peril, according to the report. Many of the troubled fish are restricted to only a single drainage. "Human populations have greatly expanded in many of these watersheds, compounding negative impacts on aquatic ecosystems," noted Howard Jelks, a USGS researcher and the senior author of the paper.

Degree of Trouble

Of fish on the 1989 imperiled list, 89 percent are either still listed with the same conservation status or have become even more at risk. Only 11 percent improved in status or were delisted. The authors emphasized that improved public awareness and proactive management strategies are needed to protect and recover these aquatic treasures.

"Fish are not the only aquatic organisms undergoing precipitous declines," said USGS researcher Noel Burkhead, a lead author on the report and the chair of the AFS Endangered Species Committee. "Freshwater crayfishes, snails and mussels are exhibiting similar or even greater levels of decline and extinction."

The authors noted that the list was based on the best biological information available. "We believe this report will provide national and international resource managers, scientists and the conservation community with reliable information to establish conservation, management and recovery priorities," said Stephen Walsh, anothe
'/>"/>

Contact: Catherine Puckett
cpuckett@usgs.gov
352-264-3532
United States Geological Survey
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Nitrogen -- the silent species eliminator
2. Robot vehicle surveys deep sea off Pacific Northwest
3. Scientists break record by finding northernmost hydrothermal vent field
4. Fossils and layers: Solving the terrane puzzle of the North American cordillera
5. New report looks at the state of the North American environment
6. New study finds most North Pacific humpback whale populations rebounding
7. UTSA hosts North American Energy Summit May 1-2
8. NASA satellite measures pollution from east Asia to North America
9. Rare North Island brown kiwi hatches at the Smithsonians National Zoo
10. Typical North American diet is deficient in omega-3 fatty acids
11. GSA Northeastern Section to meet in Buffalo this month
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/14/2014)... 2014 How does oxygen control insect body size? What ... in the first issue of Current Opinion in Insect ... and more questions. , Current Opinion in Insect Science ... series. It is a review journal that aims to provide ... expanding volume of information published in the field of insect ...
(Date:7/14/2014)... The Biogerontology Research Foundation (BGRF), a UK-based charity ... challenges of a rapidly ageing population, hosted the ... 30th, with Aging Analytics, a company supporting financial ... , The speakers at the forum included: , ... Kong on ,Impact Investment to Advance Longevity Research, ...
(Date:7/14/2014)... discovery and description of Rhipidocyrtus muiri - a ... to represent a new genus and species. The long and ... is discussed in a recent paper published in the open ... male, and only known specimen of Rhipidocyrtus muiri , ... this it was transferred among several researchers in the early ...
Breaking Biology News(10 mins):BGRF hosts inaugural 21st Century Medicine Forum 2Serendipity at the Smithsonian: The 107-year journey of the beetle Rhipidocyrtus muiri 2Serendipity at the Smithsonian: The 107-year journey of the beetle Rhipidocyrtus muiri 3
... the National Institutes of Health will explore the role ... by NIH,s National Institute of Environmental Health Sciences (NIEHS), ... people more vulnerable to heat exposure; changing weather patterns; ... toxic chemicals; and the negative effects of climate change ...
... discovered in the 16-23 million years old sediments of the ... Helophorus sibiricus , a member of the water scavenger ... in Eurasia and reaches even North America. The species was ... based on specimens collected at Lake Baikal. It is aquatic ...
... 2011. In the central Arctic the proportion of old, thick ... largely consists of thin, one-year-old floes. This is one of ... Polar and Marine Research in the Helmholtz Association brought back ... The ship arrived at its home port of Bremerhaven ...
Cached Biology News:NIH launches research program to explore health effects from climate change 2NIH launches research program to explore health effects from climate change 3A living species of aquatic beetle found in 20-million-year-old sediments 2Young and thin instead of old and bulky 2Young and thin instead of old and bulky 3Young and thin instead of old and bulky 4
(Date:7/14/2014)... , July 14, 2014 Cloud Pharmaceuticals, ... design and development, announced today the expansion of ... has been granted supercomputing time at Argonne National ... Through a discretionary allocation of ... Facility (ALCF), researchers at Cloud Pharmaceuticals will use ...
(Date:7/14/2014)... 2014 Throughout this past June ... clinical trials space, representing 38 countries globally, registered ... “Optimizing Patient Participation in Clinical Trials. Attract. Engage. ... internationally renowned R&D expert, Ken Getz, of Tufts ... Drug Development through Patient Centricity. , Throughout this ...
(Date:7/14/2014)... , July 14, 2014 Minerva Neurosciences (NASDAQ: ... of new therapies to treat neuropsychiatric diseases and disorders, ... been appointed vice president of finance and chief accounting ... is a senior executive with more than 20 years ... and life science companies. His background includes the management ...
(Date:7/14/2014)... 14, 2014 PatientCrossroads, pioneer ... announced that three PatientCrossroads-based patient registries—DuchenneConnect, for ... Syndrome International Registry; and the NephCure Kidney ... contracts by the Patient-Centered Outcomes Research Institute ... a new health data network called PCORnet: ...
Breaking Biology Technology:Cloud Pharmaceuticals Granted 1M Hours of Supercomputer Time to Target Orphan Diseases Including Malaria 2Optimizing Patient Participation in Clinical Trials: Attract. Engage. Retain. – eCongress eBox Archives Now Available 2Optimizing Patient Participation in Clinical Trials: Attract. Engage. Retain. – eCongress eBox Archives Now Available 3Optimizing Patient Participation in Clinical Trials: Attract. Engage. Retain. – eCongress eBox Archives Now Available 4Optimizing Patient Participation in Clinical Trials: Attract. Engage. Retain. – eCongress eBox Archives Now Available 5Minerva Neurosciences Announces Appointment Of Frederick W. Ahlholm As VP Of Finance And Chief Accounting Officer 2PatientCrossroads Fuels Development of New National Clinical Research Network 2PatientCrossroads Fuels Development of New National Clinical Research Network 3
... , Most Basic Recommended Cecil Instrumentation: , ... 500 l loop , Fraction collector , Column ... : , Researchers need to understand ... protein expression in healthy and diseased cells. , Hence the ...
... reliable and accurate long-range PCR and RT-PCR , ... RT-PCR Kits provide dedicated and highly reliable solutions for long-range,amplification from genomic DNA and cDNA. ... , QIAGEN LongRange PCR ... Amplification of extremely long PCR products up to 40 kb DNA or,12.5 kb ...
... LOS ANGELES, CA (August 10, 2006) - DoveBid, Inc., ( http://www.dovebid.com ... auction and valuation services, announced , today it ... Exchange auction online, on August 15, 2006. The event marks a milestone ... practice, and is expected , to bring to-date ...
Cached Biology Technology:Semi Preparative Purification of Proteins 2QIAGEN LongRange PCR and 2Step RT-PCR Kits 2World Class Life Science and Pharmaceutical Companies Leverage DoveBid s Global Reach for Asset Management and Disposition 2World Class Life Science and Pharmaceutical Companies Leverage DoveBid s Global Reach for Asset Management and Disposition 3
Immunogen: C terminus [VQLKRSKNDSKPYC] of cardiac elav-type RNA-binding protein (ETR-3) Storage: -20 C, Avoid Freeze/Thaw Cycles...
Standard 2" and 3" Fiberboard Boxes can be sold separately or with 16, 25, 36, 49, 64, 81 or 100 cell dividers. Fiberboard boxes can also be ordered with corresponding freezer racks...
...
Luminometers...
Biology Products: