Effectiveness of Using a Vinyl Sheet to Reduce Mortality Caused by Collision During Rearing of Pacific Saury Cololabis saira

Mitsuhiro Nakaya; Taizo Morioka; Kyohei Fukunaga; Naoto Murakami; Takashi Ichikawa; Sachio Sekiya

doi:10.11233/aquaculturesci.58.301

Short Papers

Effectiveness of Using a Vinyl Sheet to Reduce Mortality Caused by Collision During Rearing of Pacific Saury Cololabis saira

Mitsuhiro Nakaya, Taizo Morioka, Kyohei Fukunaga, Naoto Murakami, Takashi Ichikawa, Sachio Sekiya

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Keywords: Pacific saury, Collision, Reduce mortality, Vinyl sheet

JOURNAL FREE ACCESS

2010 Volume 58 Issue 2 Pages 301-303

DOI https://doi.org/10.11233/aquaculturesci.58.301

Details

Abstract

To reduce mass mortality of Pacific saury caused by collision with the tank wall, we examined rearing of saury in a tank with a vinyl sheet attached to the tank wall, and no vinyl sheet tank. We compared survival rate and ratio of the lower jaw length to the knob length of those fish. Survival rate of the former was higher than the latter. No significant difference was recognized for the ratio. These results suggest that the vinyl sheet could not reduce the damage to the lower jaw, but it could reduce the mortality caused by collision.

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