HOME >> BIOLOGY >> NEWS
New angle needed to get pike out of Lake Davis

Hoping to keep non-native northern pike in Lake Davis from invading the Sacramento-San Joaquin river system, state wildlife managers have electroshocked, poisoned and netted thousands of the fish. Nonetheless, concludes a new UC Davis study, the pike are thriving.

Professor Ted Foin constructed a mathematical model that considered Lake Davis' fish habitat and pike population dynamics to estimate the impact of the removal program on estimated pike population for the next 10 to 100 years.

"The Lake Davis pike population is well-established and likely in the phase of explosive growth," said Foin, a systems ecologist and modeler in the Department of Agronomy and Range Science. "Methods currently in use are having no significant impact on pike population growth. Simply put, the pike population in Lake Davis has grown too large to be controlled by removal."

If the voracious pike (Esox lucius) were to escape over Grizzly Dam or were illegally transplanted by fishermen, they could devastate endangered fish in the Sacramento and San Joaquin rivers and delta, including salmon and the Sacramento splittail.

The California Department of Fish and Game and the Lake Davis Steering Committee are currently considering their next steps. One option is to try again to kill the fish using chemicals. In October 1997, the department put 76,000 gallons of rotenone into the lake to suffocate the pike. But in May 1999, pike were found in the lake again.

Foin said that while the new fish might have been illegally transplanted, they more likely were survivors of the 1997 treatment; some DNA evidence supports the survivor hypothesis.

The next public meeting to discuss the pike problem is Sept. 8 in Portola, in eastern Plumas County. More information: http://www.dfg.ca.gov/northernpike/index.html.


'"/>

Contact: Ted Foin
tcfoin@ucdavis.edu
530-754-7910
University of California - Davis
28-Aug-2003


Page: 1

Related biology news :

1. Natural enemies help scientists untangle tropical forest food webs
2. Sea Grant asking anglers to collect sea lampreys for Lake Champlain study
3. New enzyme tied to tangles in Alzheimers disease
4. Images of tail of protein needed for cell multiplication suggest anticancer drug targets
5. Report outlines steps needed to lessen smallpox threat
6. New national research effort needed to secure clean, adequate water supply in coming decades
7. Better techniques needed to predict earthquake hazards, UC study finds
8. Support needed for elderly breast cancer patients and for independent academic research
9. New understanding of insulins complexities needed to conquer diabetes
10. Ethical guidelines needed before nutrigenomic groceries come to market
11. Stanford researchers isolate protein needed for stem cell maintenance

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: New angle needed get pike out Lake Davis

(Date:12/15/2014)... --Research and Markets ( http://www.researchandmarkets.com/research/87pph8/global_facial ) ... Facial Recognition Market 2015-2019" report to their ... Facial recognition is a technology used ... measures the overall facial feature of a person ... distance between eyes. Facial recognition is used for ...
(Date:12/11/2014)... , Dec. 10, 2014  Data Sciences ... monitoring, has released a new series of digital ... preclinical toxicology researchers. M series, part of the ... collect the best possible physiologic data when incorporating ... Adding functional endpoints to toxicology studies has evolved ...
(Date:12/10/2014)... , Dec. 9, 2014 CIE San ... catalyst that provides the connective tissue that enhances care ... them to easily share client-level information; earned a second ... expand to organizations serving seniors aging in community and; ... partner on December 11 th 4-6p. ...
Breaking Biology News(10 mins):Global Facial Recognition Market 2015-2019: Key Vendors are 3M Cogent, Cognitec Systems, NEC and Safran Group 2Global Facial Recognition Market 2015-2019: Key Vendors are 3M Cogent, Cognitec Systems, NEC and Safran Group 3New telemetry implants expected to change how large animal toxicology studies are conducted 2Community Information Exchange San Diego Launches Pilot, Secures $1 Million Expansion Grant, and Becomes a "Live Well San Diego" Partner 2Community Information Exchange San Diego Launches Pilot, Secures $1 Million Expansion Grant, and Becomes a "Live Well San Diego" Partner 3Community Information Exchange San Diego Launches Pilot, Secures $1 Million Expansion Grant, and Becomes a "Live Well San Diego" Partner 4
(Date:12/19/2014)... The empty capsules market is ... population and technological innovations in the empty capsules ... catalysing the growth of the empty capsules market. ... , Scope of Report , The report will ... entrants/smaller firms to gauge the pulse of the ...
(Date:12/19/2014)... N.Y. , Dec. 18, 2014 Egenix, Inc. ... has been elected Chairman of the Board, to succeed ... and CEO, but will continue as a member of the ... he has added to the company over almost twenty years, ... The Board of Directors has established a Search Committee ...
(Date:12/17/2014)... (PRWEB) December 16, 2014 The ... since 2013, which is why IBISWorld updated its original ... continues to benefit from an intensified focus on environmental ... for new emission standards for power plants and a ... According to IBISWorld Industry Analyst Sarah Kahn, “a range ...
(Date:12/17/2014)... 2014 Achim Noack has been named ... Group. In this position, Noack will assist Jerry Stoller, ... develop marketing strategy and supervise global marketing management and ... has tremendous knowledge and experience in the crop protection ... experience and innovative thinking will be a great asset ...
Breaking Biology Technology:Empty Capsules Market Hit to Reach $1,820 Million by 2019 - New Research Report by MarketsandMarkets 2Empty Capsules Market Hit to Reach $1,820 Million by 2019 - New Research Report by MarketsandMarkets 3Empty Capsules Market Hit to Reach $1,820 Million by 2019 - New Research Report by MarketsandMarkets 4Activated Carbon Manufacturing in the US Industry Market Research Report Has Been Updated from IBISWorld 2Activated Carbon Manufacturing in the US Industry Market Research Report Has Been Updated from IBISWorld 3Achim Noack Joins Stoller Group as Global Vice President of Marketing and Administration 2
Cached News: