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Temporal stability in a protected and isolated fish community within marine parks surrounding Lord Howe Island

Rees, M. J. and Knott, N. A. and Davis, T. and Davis, A. R. and Gudge, S. and Neilson, J. M. and Fetterplace, Lachlan and Jordan, A. (2021). Temporal stability in a protected and isolated fish community within marine parks surrounding Lord Howe Island. Regional Studies in Marine Science. 48 , 102038
[Research article]

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Abstract

Remote oceanic islands often display high levels of biodiversity and endemism, making them important locations for marine parks aimed at conserving biodiversity. To determine whether marine parks are reaching conservation objectives requires consistent assessments of their effectiveness through time. Lord Howe Island and Balls Pyramid are World Heritage listed remote oceanic islands in the Tasman Sea that support a diverse assemblage of fishes including many endemic and protected species. To conserve the region’s unique marine biodiversity, state and Commonwealth marine parks including no-take zones and partially protected zones open to line fishing were established. After approximately 5, 9 and 13 years of protection of shelf habitat we tested for changes in the marine park’s fish assemblage across management zones through time using baited remote underwater video systems (BRUVs). We detected no difference in total fish abundance, diversity, or assemblage composition between management zone types. The relative abundance of targeted carangids, yellowtail kingfish and silver trevally were 2 and 1.6 times greater in no-take zones than partially protected zones respectively, however, the substantial variation in their abundances among locations and sites meant that these differences were not statistically significant. No clear difference in the relative abundance of endemic, near-endemic and protected species were observed between management zone types. Generally, the abundance and diversity of fishes varied most among locations, sites and sampling years. The overall lack of difference in the fish assemblage between management zone types and its stability through time suggests current anthropogenic threats are relatively minor, and the marine park’s condition is reasonably healthy. Future surveys of the marine park’s fish assemblage will be valuable to test for body-size differences between zone types and to monitor trends in condition, particularly in response to possible changes in the number, frequency and intensity of anthropogenic threats.

Authors/Creators:Rees, M. J. and Knott, N. A. and Davis, T. and Davis, A. R. and Gudge, S. and Neilson, J. M. and Fetterplace, Lachlan and Jordan, A.
Title:Temporal stability in a protected and isolated fish community within marine parks surrounding Lord Howe Island
Series Name/Journal:Regional Studies in Marine Science
Year of publishing :2021
Volume:48
Article number:102038
Number of Pages:14
Associated Programs and Other Stakeholders:SLU - Environmental assessment > Programme Coastal and sea areas
Language:English
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Ecology
(A) Swedish standard research categories 2011 > 1 Natural sciences > 107 Other Natural Sciences > Other Natural Sciences not elsewhere specified
Keywords:endemism, marine protected areas, marine reserve, partially protected area, world heritage area, human impacts
URN:NBN:urn:nbn:se:slu:epsilon-p-114034
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-114034
Additional ID:
Type of IDID
DOI10.1016/j.rsma.2021.102038
ID Code:26007
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(NL, NJ) > Department of Aquatic Resources
Deposited By: SLUpub Connector
Deposited On:02 Nov 2021 10:25
Metadata Last Modified:02 Nov 2021 10:31

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