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Multiple measures of thermal performance of early stage eastern rock lobster in a fast-warming ocean region

Citation

Twiname, S and Fitzgibbon, QP and Hobday, AJ and Carter, CG and Pecl, GT, Multiple measures of thermal performance of early stage eastern rock lobster in a fast-warming ocean region, Marine Ecology - Progress Series, 624 pp. 1-11. ISSN 0171-8630 (2019) [Refereed Article]


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DOI: doi:10.3354/meps13054

Abstract

To date, many studies trying to understand species’ climate-driven changes in distribution, or ‘range shifts’, have each focused on a single potential mechanism. While a single performance measure may give some insight, it may not be enough to accurately predict outcomes. Here, we used multiple measures of performance to explore potential mechanisms behind species range shifts. We examined the thermal pattern for multiple measures of performance, including measures of aerobic metabolism and multiple aspects of escape speed, using the final larval stage (puerulus) of eastern rock lobster Sagmariasus verreauxi as a model species. We found that aerobic scope and escape speed had different thermal performances and optimal temperatures. The optimal temperature for aerobic scope was 27.5°C, while the pseudo-optimal temperature for maximum escape speed was 23.2°C. This discrepancy in thermal performance indicators illustrates that one measure of performance may not be sufficient to accurately predict whole-animal performance under future warming. Using multiple measures of performance and appropriate modelling techniques may lead to a more accurate prediction of future range shifts, including the timing and extent of climate-driven species redistribution.

Item Details

Item Type:Refereed Article
Keywords:aerobic scope, climate change, crustacean larvae, escape speed, puerulus, respiratory metabolism, Sagmariasus verreauxi
Research Division:Agricultural and Veterinary Sciences
Research Group:Fisheries Sciences
Research Field:Fish Physiology and Genetics
Objective Division:Animal Production and Animal Primary Products
Objective Group:Fisheries - Aquaculture
Objective Field:Aquaculture Rock Lobster
UTAS Author:Twiname, S (Ms Samantha Twiname)
UTAS Author:Fitzgibbon, QP (Dr Quinn Fitzgibbon)
UTAS Author:Carter, CG (Professor Chris Carter)
UTAS Author:Pecl, GT (Professor Gretta Pecl)
ID Code:136903
Year Published:2019
Deposited By:Fisheries and Aquaculture
Deposited On:2020-01-22
Last Modified:2020-02-19
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