Space utilisation, movement and behaviour of the spiny dogfish, Squalus acanthias , in Macquarie Harbour, Tasmania
Movement and spatial use provide insights into the behaviour of marine organisms which, in turn, enables their effective management. The spiny dogfish, Squalus acanthias, is a common, but vulnerable, shark inhabiting temperate continental shelves circumglobally, yet no information exists on the spat...
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ftunivtasecite:oai:ecite.utas.edu.au:119428 2023-05-15T18:51:06+02:00 Space utilisation, movement and behaviour of the spiny dogfish, Squalus acanthias , in Macquarie Harbour, Tasmania Moreno, DA Bell, JD Lyle, JM Semmens, JM 2016 application/pdf http://ecite.utas.edu.au/119428 en eng . http://ecite.utas.edu.au/119428/1/Abstract-book.pdf Moreno, DA and Bell, JD and Lyle, JM and Semmens, JM, Space utilisation, movement and behaviour of the spiny dogfish, Squalus acanthias , in Macquarie Harbour, Tasmania, Program book for the Australian Society for Fish Biology - Oceania Chondrichthyan Society Joint Conference, 04-07 September, Hobart, Tasmania (2016) [Conference Extract] http://ecite.utas.edu.au/119428 Agricultural and Veterinary Sciences Fisheries Sciences Fisheries Sciences not elsewhere classified Conference Extract NonPeerReviewed 2016 ftunivtasecite 2019-12-13T22:18:35Z Movement and spatial use provide insights into the behaviour of marine organisms which, in turn, enables their effective management. The spiny dogfish, Squalus acanthias, is a common, but vulnerable, shark inhabiting temperate continental shelves circumglobally, yet no information exists on the spatial dynamics of the species in Australia. Twenty-three S. acanthias were implanted with acoustic transmitters and monitored over 1.5 years using a passive acoustic array in Macquarie Harbour, Tasmania. Markov chains and Brownian bridge models were used to analyse the distribution of the species in the harbour. Both males and females displayed non-random site affinity, although the ranges of males changed seasonally. Social association indicated a varying degree of sexual segregation during winter, although patterns were not as clear as reported elsewhere. This represents the first example where the species displays phylopatric behaviour and does not undertake large scale movement. Both sexes are likely to be vulnerable to a variety of anthropogenic impacts within the Harbour and spatial management could be effectively implemented to nullify these impacts. The patterns of space use and behaviours observed in this study are unique for the species. By using random walk models and social networks, it is possible to gain a better understanding of the ways in which S. acanthias has adapted to a seemingly unfit environment. Conference Object spiny dogfish Squalus acanthias eCite UTAS (University of Tasmania) |
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eCite UTAS (University of Tasmania) |
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ftunivtasecite |
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English |
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Agricultural and Veterinary Sciences Fisheries Sciences Fisheries Sciences not elsewhere classified |
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Agricultural and Veterinary Sciences Fisheries Sciences Fisheries Sciences not elsewhere classified Moreno, DA Bell, JD Lyle, JM Semmens, JM Space utilisation, movement and behaviour of the spiny dogfish, Squalus acanthias , in Macquarie Harbour, Tasmania |
topic_facet |
Agricultural and Veterinary Sciences Fisheries Sciences Fisheries Sciences not elsewhere classified |
description |
Movement and spatial use provide insights into the behaviour of marine organisms which, in turn, enables their effective management. The spiny dogfish, Squalus acanthias, is a common, but vulnerable, shark inhabiting temperate continental shelves circumglobally, yet no information exists on the spatial dynamics of the species in Australia. Twenty-three S. acanthias were implanted with acoustic transmitters and monitored over 1.5 years using a passive acoustic array in Macquarie Harbour, Tasmania. Markov chains and Brownian bridge models were used to analyse the distribution of the species in the harbour. Both males and females displayed non-random site affinity, although the ranges of males changed seasonally. Social association indicated a varying degree of sexual segregation during winter, although patterns were not as clear as reported elsewhere. This represents the first example where the species displays phylopatric behaviour and does not undertake large scale movement. Both sexes are likely to be vulnerable to a variety of anthropogenic impacts within the Harbour and spatial management could be effectively implemented to nullify these impacts. The patterns of space use and behaviours observed in this study are unique for the species. By using random walk models and social networks, it is possible to gain a better understanding of the ways in which S. acanthias has adapted to a seemingly unfit environment. |
format |
Conference Object |
author |
Moreno, DA Bell, JD Lyle, JM Semmens, JM |
author_facet |
Moreno, DA Bell, JD Lyle, JM Semmens, JM |
author_sort |
Moreno, DA |
title |
Space utilisation, movement and behaviour of the spiny dogfish, Squalus acanthias , in Macquarie Harbour, Tasmania |
title_short |
Space utilisation, movement and behaviour of the spiny dogfish, Squalus acanthias , in Macquarie Harbour, Tasmania |
title_full |
Space utilisation, movement and behaviour of the spiny dogfish, Squalus acanthias , in Macquarie Harbour, Tasmania |
title_fullStr |
Space utilisation, movement and behaviour of the spiny dogfish, Squalus acanthias , in Macquarie Harbour, Tasmania |
title_full_unstemmed |
Space utilisation, movement and behaviour of the spiny dogfish, Squalus acanthias , in Macquarie Harbour, Tasmania |
title_sort |
space utilisation, movement and behaviour of the spiny dogfish, squalus acanthias , in macquarie harbour, tasmania |
publisher |
. |
publishDate |
2016 |
url |
http://ecite.utas.edu.au/119428 |
genre |
spiny dogfish Squalus acanthias |
genre_facet |
spiny dogfish Squalus acanthias |
op_relation |
http://ecite.utas.edu.au/119428/1/Abstract-book.pdf Moreno, DA and Bell, JD and Lyle, JM and Semmens, JM, Space utilisation, movement and behaviour of the spiny dogfish, Squalus acanthias , in Macquarie Harbour, Tasmania, Program book for the Australian Society for Fish Biology - Oceania Chondrichthyan Society Joint Conference, 04-07 September, Hobart, Tasmania (2016) [Conference Extract] http://ecite.utas.edu.au/119428 |
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1766244903185022976 |