Navigation Links
Invasives threaten salmon in Pacific Northwest
Date:3/1/2009

Many native fishes in the Pacific Northwest are threatened or endangered, notably salmonids, and hundreds of millions of dollars are expended annually on researching their populations and on amelioration efforts. Most of the attention and funding have been directed toward to the impacts of habitat alteration, hatcheries, harvest, and the hydrosystemthe "all H's." A study published in the March 2009 issue of BioScience concludes, however, that nonindigenous species, notably invasive fishes, appear to pose at least as much of a threat to native salmonids as the all H's, principally through predation.

The study, by Beth L. Sanderson of the Northwest Fisheries Science Center in Seattle, Washington and two colleagues, made use of a spatially explicit database that identified the presence of invasive species in roughly 1800-square-kilometer, hydrologically connected areas throughout Washington, Oregon, and Idaho. The number of invasive species in each area ranged between 86 and 486, the majority being plants and fish.

Sanderson and colleagues assembled reports of predation by six nonindigenous fish species: catfish, black and white crappie, largemouth bass, smallmouth bass, walleye, and yellow perch. Hundreds of thousands to millions of juvenile salmonids were being consumed by these species at just a handful of sites, and for some of the species, salmonids constituted a large fraction of their diet. Yet despite the clear evidence of a substantial impact of invasive species on economically important salmonids, only a very small percentage of research funding is devoted to the potential harms to salmon resulting from invasives.


'/>"/>

Contact: Jennifer Williams
jwilliams@aibs.org
202-628-1500 x209
American Institute of Biological Sciences
Source:Eurekalert

Page: 1

Related biology news :

1. Lake Michigan fish populations threatened by decline of tiny creature
2. One-fifth of fossil-fuel emissions absorbed by threatened forests
3. States expand newborn screening for life-threatening disorders
4. Dealing with taxonomic uncertainty for threatened and endangered species
5. Global warming threatens Antarctic sea life
6. Holy guacamole: invasive beetle threatens Floridas avocados
7. Researchers to use K-States BSL-3 Lab for $1 million study of fungus threatening wheat crops
8. Overfishing threatens European bluefin tuna
9. Revealing the evolutionary history of threatened sea turtles
10. Global warming threatens Australias iconic kangaroos
11. Tropical rainforest and mountain species may be threatened by global warming
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/25/2015)... and BELLEVUE, Wash. , Aug. 25, ... robotic systems, announced today it will unveil its "Guardian ... (UGV), at the National Tactical Officers Association Conference on ... The Guardian S is the first-ever commercially available energetically ... of research and in-field trials and is protected by ...
(Date:8/20/2015)... PLEASANTON, Calif. , Aug. 20, 2015 /PRNewswire/ ... focused on consumers that are active and healthy. ... used in the hospital environment to help improve ... released a video from the Wearable Technologies ... MD discussed new applications for wearables in healthcare.    ...
(Date:8/19/2015)...  VOXX International Corporation (Nasdaq: VOXX ) ... Definitive Agreement to purchase the assets, inclusive of ... EyeLock through an acquiring entity.  Upon consummation of ... in the acquiring entity. The closing of the ...  Expanding on its existing supply chain and distribution ...
Breaking Biology News(10 mins):Sarcos to Debut First-of-its-Kind Snake Robot 2Sarcos to Debut First-of-its-Kind Snake Robot 3Leaf Healthcare Releases Video from Wearable Technology Conference on New Applications for Wearables in the Hospital Environment 2Leaf Healthcare Releases Video from Wearable Technology Conference on New Applications for Wearables in the Hospital Environment 3VOXX International Corporation Signs Definitive Agreement To Acquire The Assets And A Controlling Interest Of Biometric Leader EyeLock 2VOXX International Corporation Signs Definitive Agreement To Acquire The Assets And A Controlling Interest Of Biometric Leader EyeLock 3VOXX International Corporation Signs Definitive Agreement To Acquire The Assets And A Controlling Interest Of Biometric Leader EyeLock 4VOXX International Corporation Signs Definitive Agreement To Acquire The Assets And A Controlling Interest Of Biometric Leader EyeLock 5
... Sons, Inc., (NYSE:JWa, JWb), a global provider of ... technical, medical, and scholarly research; professional development; and ... Wiley Online Library. PDFs read using the ReadCube ... author names, and direct access to supplemental content, ...
... papers published online 11 Jan. 2013 include contributions from ... New Zealand. Multiple locations in the western U.S. are studied, ... Papers cover , 1. Holocene record of strong earthquakes ... the fossil forests of Joggins Fossil Cliffs UNESCO World Heritage ...
... Have you ever wondered why, and how, shoals of fish are ... by Ashley Ward, from the University of Sydney in Australia, and ... a variety of different sensory cues to locate shoal-mates, but they ... the same size as themselves. Using these cues, they can form ...
Cached Biology News:GSA Bulletin starts 2013 with 13 new papers published online ahead of print 2GSA Bulletin starts 2013 with 13 new papers published online ahead of print 3GSA Bulletin starts 2013 with 13 new papers published online ahead of print 4GSA Bulletin starts 2013 with 13 new papers published online ahead of print 5GSA Bulletin starts 2013 with 13 new papers published online ahead of print 6GSA Bulletin starts 2013 with 13 new papers published online ahead of print 7GSA Bulletin starts 2013 with 13 new papers published online ahead of print 8GSA Bulletin starts 2013 with 13 new papers published online ahead of print 9GSA Bulletin starts 2013 with 13 new papers published online ahead of print 10GSA Bulletin starts 2013 with 13 new papers published online ahead of print 11Nothing fishy about swimming with same-sized mates 2
(Date:8/31/2015)... -- Research and Markets ( http://www.researchandmarkets.com/research/k6lcp2/mexico_biomedical ) has announced ... - Growth, Trends & Forecasts (2014-2020)" report to ... Sensors market is estimated at $0.20 billion by 2018 ... The near future will bring biomedical sensors ... individual. These sensors can be set to trigger alerts ...
(Date:8/31/2015)... MARLBOROUGH, Mass. , Aug. 31, 2015 /PRNewswire/ ... biotechnology company focused on discovering and developing innovative ... ophthalmology, today announced that the 30-day review period ... Drug (IND) for ocular indications with the U.S. ... the IND is now active. ...
(Date:8/31/2015)... Aug. 31, 2015 Trimb Healthcare AB ("Trimb") ... acquire YouMedical Group BV ("YouMedical"), a Dutch OTC company ... annual sales of approximately EUR 16 million, with solid ... "Our ambition is to build a leading international ... toward that goal. YouMedical gives us a stronger North ...
(Date:8/30/2015)... , August 31, 2015 , ... Frau   für chirurgische   Behandlung     ... 7-90   werden für eine   verheerende   Geburtsverletzung ... behandeln und die Anzahl ausgebildeter Chirurgen in Kenia bis ... gab heute bekannt, dass  Action on Fistula  seit ihrem ...
Breaking Biology Technology:Mexico Biomedical Sensors Market Report 2015-2020 2RXi Pharmaceuticals Announces Advancements in its Ophthalmology Clinical Program with RXI-109 2RXi Pharmaceuticals Announces Advancements in its Ophthalmology Clinical Program with RXI-109 3RXi Pharmaceuticals Announces Advancements in its Ophthalmology Clinical Program with RXI-109 4Über 550 Frauen, deren Leben durch "Action on Fistula" transformiert wurde 2Über 550 Frauen, deren Leben durch "Action on Fistula" transformiert wurde 3Über 550 Frauen, deren Leben durch "Action on Fistula" transformiert wurde 4Über 550 Frauen, deren Leben durch "Action on Fistula" transformiert wurde 5
... PARS ) announced today that President & ... Company., Mr. Rubino joined Pharmos in November ... the subsequent integration of Vela,Pharmaceuticals completed in October ... focused on key business development priorities and the,Company,s ...
... Ore., Dec. 18 Synthetech, Inc. (OTC,Bulletin ... Performance Improvement,Awards for their outstanding accomplishments in ... Silver Awards are presented by,the Synthetic Organic ... SOCMA,s EHS&S initiative. The awards are highly,regarded ...
... January 1, 2008 will mark the,ritualistic day of New ... also brings added pressure to smokers as January 1 marks ... resolving to make 2008 the start of a smoke-free life, ... by Achieve Laser, is quickly becoming a very successful aid ...
Cached Biology Technology:Pharmos Corporation Announces President & COO Alan L. Rubino to Leave Company 2Synthetech Earns National Recognition for Performance Improvement Program 2Synthetech Earns National Recognition for Performance Improvement Program 3Laser Therapy Gives Smokers Hope for Successful New Year's Resolution 2