Effects of protection from fishing on the lengths of targeted and non-targeted fish species at the Houtman Abrolhos Islands, Western Australia

The effects of fishing and protection on the length of targeted and non-targeted warmtemperateand tropical reef fishes were studied using baited remote underwater stereo-videocameras at the Houtman Abrolhos Islands, Western Australia. Video images were obtained from inside a marine protected area (M...

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Main Authors: Watson, D., Anderson, M., Kendrick, G., Nardi, K., Harvey, Euan
Format: Journal Article
Published: Inter-Research 2009
Subjects:
Online Access:http://hdl.handle.net/20.500.11937/28171
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author Watson, D.
Anderson, M.
Kendrick, G.
Nardi, K.
Harvey, Euan
author_facet Watson, D.
Anderson, M.
Kendrick, G.
Nardi, K.
Harvey, Euan
author_sort Watson, D.
building Curtin Institutional Repository
collection Online Access
description The effects of fishing and protection on the length of targeted and non-targeted warmtemperateand tropical reef fishes were studied using baited remote underwater stereo-videocameras at the Houtman Abrolhos Islands, Western Australia. Video images were obtained from inside a marine protected area (MPA) and from 3 replicate fished locations within each of 3 island groups. The effects of protection on the lengths of 6 targeted and 4 non-targeted fish species were examined. Five of the 6 targeted fish species were larger inside MPAs than in areas open to fishing (Choerodon rubescens, Lethrinus miniatus, Lethrinus nebulosus, Pagrus auratus and Plectropomus leopardus). Targeted species were, on average, 48 mm (10%) larger inside MPAs than in areas open to fishing. The vast majority of the individuals of C. rubescens, P. auratus and P. leopardus recorded were smaller than their minimum legal size for first capture. For non-targeted species, only 1 of the 4, Coris auricularis, showed an effect of protection, with the mean length of individuals reduced by 85 mm (33%) inside MPAs relative to areas open to fishing. This study demonstrated clear effects of protection from fishing on the size structure of populations of common warm-temperate and tropicalreef fishes.
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institution Curtin University Malaysia
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publishDate 2009
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spelling curtin-20.500.11937-281712017-09-13T15:13:58Z Effects of protection from fishing on the lengths of targeted and non-targeted fish species at the Houtman Abrolhos Islands, Western Australia Watson, D. Anderson, M. Kendrick, G. Nardi, K. Harvey, Euan Coral reefs Marine protected areas Baited remote stereo-video Fish length Houtman Abrolhos Islands The effects of fishing and protection on the length of targeted and non-targeted warmtemperateand tropical reef fishes were studied using baited remote underwater stereo-videocameras at the Houtman Abrolhos Islands, Western Australia. Video images were obtained from inside a marine protected area (MPA) and from 3 replicate fished locations within each of 3 island groups. The effects of protection on the lengths of 6 targeted and 4 non-targeted fish species were examined. Five of the 6 targeted fish species were larger inside MPAs than in areas open to fishing (Choerodon rubescens, Lethrinus miniatus, Lethrinus nebulosus, Pagrus auratus and Plectropomus leopardus). Targeted species were, on average, 48 mm (10%) larger inside MPAs than in areas open to fishing. The vast majority of the individuals of C. rubescens, P. auratus and P. leopardus recorded were smaller than their minimum legal size for first capture. For non-targeted species, only 1 of the 4, Coris auricularis, showed an effect of protection, with the mean length of individuals reduced by 85 mm (33%) inside MPAs relative to areas open to fishing. This study demonstrated clear effects of protection from fishing on the size structure of populations of common warm-temperate and tropicalreef fishes. 2009 Journal Article http://hdl.handle.net/20.500.11937/28171 10.3354/meps08009 Inter-Research unknown
spellingShingle Coral reefs
Marine protected areas
Baited remote stereo-video
Fish length
Houtman Abrolhos Islands
Watson, D.
Anderson, M.
Kendrick, G.
Nardi, K.
Harvey, Euan
Effects of protection from fishing on the lengths of targeted and non-targeted fish species at the Houtman Abrolhos Islands, Western Australia
title Effects of protection from fishing on the lengths of targeted and non-targeted fish species at the Houtman Abrolhos Islands, Western Australia
title_full Effects of protection from fishing on the lengths of targeted and non-targeted fish species at the Houtman Abrolhos Islands, Western Australia
title_fullStr Effects of protection from fishing on the lengths of targeted and non-targeted fish species at the Houtman Abrolhos Islands, Western Australia
title_full_unstemmed Effects of protection from fishing on the lengths of targeted and non-targeted fish species at the Houtman Abrolhos Islands, Western Australia
title_short Effects of protection from fishing on the lengths of targeted and non-targeted fish species at the Houtman Abrolhos Islands, Western Australia
title_sort effects of protection from fishing on the lengths of targeted and non-targeted fish species at the houtman abrolhos islands, western australia
topic Coral reefs
Marine protected areas
Baited remote stereo-video
Fish length
Houtman Abrolhos Islands
url http://hdl.handle.net/20.500.11937/28171