Comparison of Electrofishing and Hoopnetting in Lotic Habitats of the Lower Mississippi River
作者： Lawrence L. Pugh , Harold L. Schramm
DOI: 10.1577/1548-8675(1998)018<0649:COEAHI>2.0.CO;2
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摘要: Abstract We compared catch rates and sampling costs of two types hoop nets (61 cm 122 diameter) pulsed DC electrofishing (500 V/60 Hz 1,000 V/15 Hz) in lotic habitats main secondary channels the lower Mississippi River. Forty fish species were collected 474 hoop-net-nights 320 samples (5 min each). Two only by nets, whereas 19 electrofishing. Using field personnel time as unit effort, per effort for most was higher less variable than nets. Electrofishing wider length ranges cost did hoopnetting. Compared to hoopnetting, we found low frequency (15 high (60 an effective method assessment fishes
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