Fish ecology in a low oxygen environment: a case study from the Arabian Sea

Issam Humaid Mohamed Al Rasady

doi:10.4225/23/59362db309c33

Fish ecology in a low oxygen environment: a case study from the Arabian Sea

Issam Humaid Mohamed Al Rasady

Research output: Thesis › Doctoral Thesis

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Abstract

The permanent oxygen minimum zone (OMZ) in the Arabian Sea provides an opportunity to study fish biodiversity under low oxygen conditions predicted to occur under climate change scenarios. Depth and season, which influence oxygen levels, affected species diversity but fish length responses were species-specific. Temperature explained 40% of variation in fish distribution and condition, measured as weight at length, and was higher in the OMZ than non-OMZ regions. Fish response to the OMZ was variable but as OMZs are predicted to expand globally under a changing climate, understanding the impacts on economic and fisheries remains important.

Original language	English
Qualification	Doctor of Philosophy
Awarding Institution	The University of Western Australia
Supervisors/Advisors	Meeuwig, Jessica, Supervisor Letessier, Tom Bech, Supervisor Claereboudt, Michel, Supervisor, External person
Award date	18 Apr 2017
DOIs	https://doi.org/10.4225/23/59362db309c33
Publication status	Unpublished - 2017

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10.4225/23/59362db309c33

THESIS - DOCTOR OF PHILOSOPHY - AL RASADY Issam Humaid Mohamed - 2017
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Cite this

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AB - The permanent oxygen minimum zone (OMZ) in the Arabian Sea provides an opportunity to study fish biodiversity under low oxygen conditions predicted to occur under climate change scenarios. Depth and season, which influence oxygen levels, affected species diversity but fish length responses were species-specific. Temperature explained 40% of variation in fish distribution and condition, measured as weight at length, and was higher in the OMZ than non-OMZ regions. Fish response to the OMZ was variable but as OMZs are predicted to expand globally under a changing climate, understanding the impacts on economic and fisheries remains important.

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KW - Condition

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Fish ecology in a low oxygen environment: a case study from the Arabian Sea

Abstract

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