Depth-dependent swimbladder compression in herring Clupea harengus observed using magnetic resonance imaging

S. M. M. Faessler; P. G. Fernandes; S. I. K. Semple; Andrew Stuart Brierley

doi:10.1111/j.1095-8649.2008.02130.x

Depth-dependent swimbladder compression in herring Clupea harengus observed using magnetic resonance imaging

S. M. M. Faessler, P. G. Fernandes, S. I. K. Semple, Andrew Stuart Brierley

Research output: Contribution to journal › Article › peer-review

Abstract

Changes in swimbladder morphology in an Atlantic herring Clupea harengus with pressure were examined by magnetic resonance imaging of a dead fish in a purpose-built pressure chamber. Swimbladder volume changed with pressure according to Boyle's Law, but compression in the lateral aspect was greater than in the dorsal aspect. This uneven compression has a reduced effect on acoustic backscattering than symmetrical compression and would elicit less pronounced effects of depth on acoustic biomass estimates of C. harengus.

Original language	English
Pages (from-to)	296-303
Number of pages	8
Journal	Journal of Fish Biology
Volume	74
Issue number	1
DOIs	https://doi.org/10.1111/j.1095-8649.2008.02130.x
Publication status	Published - Jan 2009

Keywords

acoustic surveys
Boyle's Law
MRI
physostome
target strength
water pressure
TARGET-STRENGTH
FISH ABUNDANCE

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10.1111/j.1095-8649.2008.02130.x

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title = "Depth-dependent swimbladder compression in herring Clupea harengus observed using magnetic resonance imaging",

abstract = "Changes in swimbladder morphology in an Atlantic herring Clupea harengus with pressure were examined by magnetic resonance imaging of a dead fish in a purpose-built pressure chamber. Swimbladder volume changed with pressure according to Boyle's Law, but compression in the lateral aspect was greater than in the dorsal aspect. This uneven compression has a reduced effect on acoustic backscattering than symmetrical compression and would elicit less pronounced effects of depth on acoustic biomass estimates of C. harengus.",

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AU - Faessler, S. M. M.

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AU - Semple, S. I. K.

AU - Brierley, Andrew Stuart

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AB - Changes in swimbladder morphology in an Atlantic herring Clupea harengus with pressure were examined by magnetic resonance imaging of a dead fish in a purpose-built pressure chamber. Swimbladder volume changed with pressure according to Boyle's Law, but compression in the lateral aspect was greater than in the dorsal aspect. This uneven compression has a reduced effect on acoustic backscattering than symmetrical compression and would elicit less pronounced effects of depth on acoustic biomass estimates of C. harengus.

KW - acoustic surveys

KW - Boyle's Law

KW - MRI

KW - physostome

KW - target strength

KW - water pressure

KW - TARGET-STRENGTH

KW - FISH ABUNDANCE

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JO - Journal of Fish Biology

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ER -

Depth-dependent swimbladder compression in herring Clupea harengus observed using magnetic resonance imaging

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Keywords

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