Short-term survival and dispersal of hatchery-reared juvenile pallid sturgeon stocked in the channelized Missouri River

被引：12

作者：

Eder, B. L. ^{[1
]}

Steffensen, K. D. ^{[1
]}

Haas, J. D. ^{[1
]}

Adams, J. D. ^{[1
]}

机构：

[1] Nebraska Game & Pk Commiss, Lincoln, NE 68503 USA

来源：

JOURNAL OF APPLIED ICHTHYOLOGY | 2015年 / 31卷 / 06期

关键词：

HABITAT USE; MOVEMENTS; NEBRASKA;

D O I：

10.1111/jai.12881

中图分类号：

S9 [水产、渔业];

学科分类号：

0908 ;

摘要：

In the summer and fall of 2014, Nebraska Game and Parks Commission crews monitored juvenile pallid sturgeon, Scaphirhynchus albus (Forbes & Richardson, 1905) (age-1 and age-4) implanted with telemetry tags that were stocked in a side channel of the Missouri River in Nebraska, USA to gain knowledge into post-stocking survival and dispersal. For this study, specific questions were asked: (i) what is the short-term survival of stocked pallid sturgeon, (ii) do pallid sturgeon stocked in summer exhibit decreased survival rates due to increased water temperatures or high river discharge, and (iii) how quickly do pallid sturgeon disperse from a stocking site? Detection histories for two rounds were used to estimate apparent survival (O) and detection (p) rates using maximum likelihood estimators based on the standard mark-recapture Cormack-Jolly-Seber model structure within program MARK. Overall apparent survival was 98.6% and dispersal was rapid; therefore, moratoriums on stocking pallid sturgeon during summer months or during high flow events do not appear to be warranted.

引用

页码：991 / 996

页数：6

共 18 条

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