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Effects of environmental and farm stress on abalone physiology: perspectives for abalone aquaculture in the face of global climate change

Citation

Morash, AJ and Alter, K, Effects of environmental and farm stress on abalone physiology: perspectives for abalone aquaculture in the face of global climate change, Reviews in Aquaculture, 8 pp. 342-368. ISSN 1753-5123 (2016) [Refereed Article]

Copyright Statement

Copyright 2015 Wiley Publishing Asia Pty Ltd

DOI: doi:10.1111/raq.12097

Abstract

Many abalone farms are reliant on coastal water inputs which are subject to fluctuations in environmental variables such as temperature, oxygen, CO2 and salinity. Near future climate change scenarios predict that there will be more frequent extreme weather events which can exacerbate these fluctuations and potentially be deleterious to farmed abalone where these variables remain largely uncontrolled. In this review, we have taken an in depth examination of current literature on the effects of environmental stress on abalone physiology and metabolism and how this affects their health and growth. In conjunction, we have also reviewed the effects of farm-specific stressors such as ammonia, stocking density, handling, nutrition and disease and the synergistic effects of these and environmental stressors on abalone physiology. We have identified currents gaps in our knowledge of this under-studied species and have made predictions on the effects of climate change on future abalone production with suggestions for future research. In summary, it is expected that abalone will show reduced growth rates as more energy is invested in combating stresses rather than growth. Furthermore, disease outbreaks may become more frequent with greater fluctuations in temperature and salinity, both of which have large-scale effects on immunity. The current body of knowledge is mainly on whole animal effects of stresses, but we know very little of their mechanistic foundation. Research in this area as well as investments in infrastructure will be pivotal in identifying and implementing strategic interventions to maintain a sustainable abalone industry in Australia.

Item Details

Item Type:Refereed Article
Keywords:abalone, aquaculture, Australia, climate change, metabolism, physiology
Research Division:Agricultural and Veterinary Sciences
Research Group:Fisheries Sciences
Research Field:Aquatic Ecosystem Studies and Stock Assessment
Objective Division:Animal Production and Animal Primary Products
Objective Group:Fisheries - Aquaculture
Objective Field:Aquaculture Molluscs (excl. Oysters)
Author:Morash, AJ (Dr Andrea Morash)
Author:Alter, K (Ms Katharina Alter)
ID Code:110036
Year Published:2016 (online first 2015)
Deposited By:IMAS Research and Education Centre
Deposited On:2016-07-12
Last Modified:2017-04-24
Downloads:0

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