首页   按字顺浏览 期刊浏览 卷期浏览 Comparison of Diets of Smallmouth Bass (Micropterus dolomieui) Collected by Sport Fishi...
Comparison of Diets of Smallmouth Bass (Micropterus dolomieui) Collected by Sport Fishing and by Electrofishing

 

作者: LyneMarie Ross,   J. Savitz,   G. Funk,  

 

期刊: Journal of Freshwater Ecology  (Taylor Available online 1995)
卷期: Volume 10, issue 4  

页码: 393-398

 

ISSN:0270-5060

 

年代: 1995

 

DOI:10.1080/02705060.1995.9663462

 

出版商: Taylor & Francis Group

 

数据来源: Taylor

 

摘要:

Length frequencies and diets of smallmouth bass (Micropterus dolomieui) captured from two small ponds by sport fishing and by electrofishing were compared to determine if fishermen's catches were similar to those acquired by electrofishing. The sport-caught fish (N=79) had a mean total length of 32.5 cm (range = 15.6 to 52.0 cm); the electrofished smallmouth bass (N=134) had a mean length of 26.2 cm (range = 8.0 to 47.1 cm). There was no significant difference in total lengths of smallmouth bass from the two ponds. Sport-caught fish were significantly larger than electrofished fish (p < .001). Of 213 smallmouth bass, 93 had empty stomachs, 113 had only one prey type, either crayfish (Orconectes virilis) or fish (Lepomissp.). There was a highly significant difference in prey items of smallmouth bass captured by sport fishing and by electrofishing (p < .001). Crayfish was the most frequent prey item in angler-caught smallmouth bass while fish (Lepomissp.) was a more frequent prey item among electrofished smallmouth bass.

 

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