Fine-scale monitoring of fish movements and multiple environmental parameters around a decommissioned offshore oil platform

A pilot study in the North Sea

Toyonobu Fujii*, Alan J. Jamieson

*Corresponding author for this work

Research output: Contribution to journalArticle

3 Citations (Scopus)
4 Downloads (Pure)

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.

Original languageEnglish
Pages (from-to)481-487
Number of pages7
JournalOcean Engineering
Volume126
Early online date16 Sep 2016
DOIs
Publication statusPublished - 1 Nov 2016

Fingerprint

Fish
Oceanographic instruments
Monitoring
Special effects
Aquatic ecosystems
Chlorophyll
Dissolved oxygen
Bioactivity
Lighting
Oils
Experiments
Temperature

Keywords

  • Artificial reefs
  • Environmental monitoring
  • Fish movement
  • North Sea
  • Offshore oil/gas platforms
  • Underwater observatory

ASJC Scopus subject areas

  • Environmental Engineering
  • Ocean Engineering

Cite this

Fine-scale monitoring of fish movements and multiple environmental parameters around a decommissioned offshore oil platform : A pilot study in the North Sea. / Fujii, Toyonobu; Jamieson, Alan J.

In: Ocean Engineering, Vol. 126, 01.11.2016, p. 481-487.

Research output: Contribution to journalArticle

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