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Lateral line pore diameters correlate with the development of gas bubble trauma signs in several Columbia River fishes

Comparative Biochemistry and Physiology - A Molecular and Integrative Physiology

By:
, , ,
DOI: 10.1016/S1095-6433(03)00072-2

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Abstract

Gas bubble trauma (GBT) caused by gas supersaturation of river water continues to be a problem in the Columbia River Basin. A common indicator of GBT is the percent of the lateral line occluded with gas bubbles; however, this effect has never been examined in relation to lateral line morphology. The effects of 115, 125 and 130% total dissolved gas levels were evaluated on five fish species common to the upper Columbia River. Trunk lateral line pore diameters differed significantly (P<0.0001) among species (longnose sucker>largescale sucker>northern pikeminnow???chinook salmon???redside shiner). At all supersaturation levels evaluated, percent of lateral line occlusion exhibited an inverse correlation to pore size but was not generally related to total dissolved gas level or time of exposure. This study suggests that the differences in lateral line pore diameters between species should be considered when using lateral line occlusion as an indicator of gas bubble trauma. ?? 2003 Elsevier Science Inc. All rights reserved.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Lateral line pore diameters correlate with the development of gas bubble trauma signs in several Columbia River fishes
Series title:
Comparative Biochemistry and Physiology - A Molecular and Integrative Physiology
DOI:
10.1016/S1095-6433(03)00072-2
Volume
135
Issue:
2
Year Published:
2003
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
First page:
309
Last page:
320
Number of Pages:
12