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Fine-scale monitoring of fish movements and multiple environmental parameters around a decommissioned offshore oil platform: A pilot study in the North Sea

Lookup NU author(s): Dr Alan Jamieson

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Abstract

A new underwater monitoring system was constructed using time-lapse photography and a suite of oceanographic instruments to characterise the dynamic relationships between changing environmental conditions, biological activities and the physical presence of offshore infrastructure. This article reports the results from a pilot study on fine-scale monitoring of fish movements in relation to changes in multiple environmental parameters observed at an offshore oil platform in the North Sea. Temporal changes in the number of saithe Pollachius virens were readily observed with a strong indication of diurnal rhythm of vertical movements. Key environmental parameters such as temperature, salinity, currents, tidal cycle, illumination, chlorophyll and dissolved oxygen also varied spatially (i.e. different depths) and/or temporally. If the monitoring system is to be deployed systematically at multiple offshore locations for longer duration as appropriately controlled experiments, this approach may greatly help understand the influence of redundant offshore man-made structures on the marine ecosystem.


Publication metadata

Author(s): Fujii T, Jamieson AJ

Publication type: Article

Publication status: Published

Journal: Ocean Engineering

Year: 2016

Volume: 126

Pages: 481-487

Print publication date: 01/11/2016

Online publication date: 16/09/2016

Acceptance date: 06/09/2016

ISSN (print): 0029-8018

ISSN (electronic): 1873-5258

Publisher: Pergamon Press

URL: http://dx.doi.org/10.1016/j.oceaneng.2016.09.003

DOI: 10.1016/j.oceaneng.2016.09.003


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