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The effect of fin-clipping on the cruising speed of goldfish (Carassius auratus L.) & cohoe salmon fry (Oncorphynchus Kisutch Walbaum)

University of British Columbia

Goldfish (Carassius auratus L.) and cohoe salmon fry (Oncorhynchus kisutch Walbaum) were acclimatized to 20°C. and 3°C. respectively. The fish were placed one at a time once a day for ten days in a rotating annular chamber and the cruising speed was found. Then various fin combinations were clipped off and the fish were given ten more trials. The mean cruising speeds before and after clipping were compared. The clipped fish suffered no loss in ability to swim at a constant rate. Cruising-speed and length, and cruising speed and weight of clipped and unclipped goldfish were correlated.

Text

2012-03-23

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http://hdl.handle.net/2429/41741

Zoology

University of British Columbia

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