Detailed Research Information

Detailed project information for
Study Plan Number 09049

Branch : Conte Anadromous Fish Laboratory

Study Plan Number : 09049

Study Title : Juvenile Atlantic salmon growth and life history in a Maine stream

Starting Date : 01/01/2000

Completion Date : 12/31/2006

Principal Investigator(s) : Letcher, Ben

Primary PI : Letcher, Ben

Telephone Number : (413) 863-3803

Email Address : bletcher@usgs.gov

SIS Number : 5004466

Primary Program Element : Fisheries and Aquatic Resources

Second Program Element : Fish and Aquatic Habitats

Status : Active

Abstract : Juvenile Atlantic salmon growth and life history in a Maine stream 9049 000101-061231, Active Native Atlantic salmon populations in seven Maine rivers are at critically low abundance (< 20% production capacity) and have been in decline over the past decade (Status review, Maine Technical Advisory Committee). Stocks in these seven rivers are part of a Distinct Population Segment (DPS) proposed for endangered status under the Endangered Species Act (ESA). Historically, factors such as land use, impoundments, over-exploitation, introductions of nonnative fish, and decreased marine survival contributed to the decline of these stocks. A considerable body of research has been conducted on the various, separate phases of the life cycle of Atlantic salmon, but research linking explicitly the freshwater and the seawater phases is rare. For example, estimates of freshwater production are commonly conducted in the fall before spring smolt migration.

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U.S. Department of the Interior || U.S. Geological Survey
11700 Leetown Road, Kearneysville, WV 25430, USA
URL: http://www.lsc.usgs.gov
Maintainer: lsc_webmaster@usgs.gov
Last Modified: October 21, 2002 dwn
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Branch :	Conte Anadromous Fish Laboratory
Study Plan Number :	09049
Study Title :	Juvenile Atlantic salmon growth and life history in a Maine stream
Starting Date :	01/01/2000
Completion Date :	12/31/2006
Principal Investigator(s) :	Letcher, Ben
Primary PI :	Letcher, Ben
Telephone Number :	(413) 863-3803
Email Address :	bletcher@usgs.gov
SIS Number :	5004466
Primary Program Element :	Fisheries and Aquatic Resources
Second Program Element :	Fish and Aquatic Habitats
Status :	Active
Abstract :	Juvenile Atlantic salmon growth and life history in a Maine stream 9049 000101-061231, Active Native Atlantic salmon populations in seven Maine rivers are at critically low abundance (< 20% production capacity) and have been in decline over the past decade (Status review, Maine Technical Advisory Committee). Stocks in these seven rivers are part of a Distinct Population Segment (DPS) proposed for endangered status under the Endangered Species Act (ESA). Historically, factors such as land use, impoundments, over-exploitation, introductions of nonnative fish, and decreased marine survival contributed to the decline of these stocks. A considerable body of research has been conducted on the various, separate phases of the life cycle of Atlantic salmon, but research linking explicitly the freshwater and the seawater phases is rare. For example, estimates of freshwater production are commonly conducted in the fall before spring smolt migration.
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U.S. Department of the Interior \|\| U.S. Geological Survey 11700 Leetown Road, Kearneysville, WV 25430, USA URL: http://www.lsc.usgs.gov Maintainer: lsc_webmaster@usgs.gov Last Modified: October 21, 2002 dwn Privacy Policy and Disclaimers \|\| FOIA \|\| Accessibility