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Clemson University

Theses/Dissertations

Population estimate

Publication Year

Articles 1 - 2 of 2

Full-Text Articles in Aquaculture and Fisheries

Life History Characteristics Of The Turquoise Darter (Etheostoma Inscriptum) In The Upper Piedmont Of South Carolina, Stephan Irwin Dec 2009

Life History Characteristics Of The Turquoise Darter (Etheostoma Inscriptum) In The Upper Piedmont Of South Carolina, Stephan Irwin

All Theses

ABSTRACT
The intention of this study was to estimate population density, time of spawning, and fecundity of the turquoise darter (Etheostoma inscriptum) in Six Mile creek of the Clemson SC experimental forest. Population density estimates were conducted on 18 riffles within the lower 1,524 m of the creek starting 304.8 m above its confluence with Lake Issaqueena from January to April 2008. Density was determined using the Leslie Depletion method, and darters/m2 was calculated. Random point collection was performed From October 14 to November 13, 2008, and 301 specimens were measured and released to determine length frequency of the population. …


Population Size And Passage Efficiency Of Alabama Shad Reaching Jim Woodruff Lock And Dam, Patrick Ely May 2007

Population Size And Passage Efficiency Of Alabama Shad Reaching Jim Woodruff Lock And Dam, Patrick Ely

All Theses

In this study, I estimated the population size of migrating Alabama shad below Jim Woodruff Lock and Dam (JWLD) in the Apalachicola River located in the central panhandle of Northwest Florida using mark recapture and relative abundance techniques. The number of marked fish was adjusted for tag loss, emigration and mortality. The population size of migrating Alabama shad near JWLD was estimated at 26,029 (95% C.I. = 15,174 - 49,040) in 2005 and as 972 (95% C.I. = 270 - 9,720) in 2006. Due to the small sample size, a relative abundance method was used to independently estimate a population …