Biogeographical and ecological context for managing threats to coral and rocky reef communities in the Lord Howe Island Marine Park, south-western Pacific
1. Quantitative subtidal surveys of fishes, macro-invertebrates and sessile organisms at 33 sites within the Lord Howe Island Marine Park revealed a rich fauna and. ora, including 164 fishes, 40 mobile invertebrate taxa, 53 coral and other sessile invertebrate taxa, 32 algal taxa, and two seagrasses...
Published in: | Aquatic Conservation: Marine and Freshwater Ecosystems |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
John Wiley & Sons Ltd
2010
|
Subjects: | |
Online Access: | http://onlinelibrary.wiley.com/ https://doi.org/10.1002/aqc.1075 http://ecite.utas.edu.au/66998 |
id |
ftunivtasecite:oai:ecite.utas.edu.au:66998 |
---|---|
record_format |
openpolar |
spelling |
ftunivtasecite:oai:ecite.utas.edu.au:66998 2023-05-15T17:51:54+02:00 Biogeographical and ecological context for managing threats to coral and rocky reef communities in the Lord Howe Island Marine Park, south-western Pacific Edgar, GJ Davey, A Kelly, G Mawbey, RB Parsons, K 2010 application/pdf http://onlinelibrary.wiley.com/ https://doi.org/10.1002/aqc.1075 http://ecite.utas.edu.au/66998 en eng John Wiley & Sons Ltd http://ecite.utas.edu.au/66998/1/Edgar et al10Lord Howe reef analysis.pdf http://dx.doi.org/10.1002/aqc.1075 Edgar, GJ and Davey, A and Kelly, G and Mawbey, RB and Parsons, K, Biogeographical and ecological context for managing threats to coral and rocky reef communities in the Lord Howe Island Marine Park, south-western Pacific, Aquatic Conservation: Marine and Freshwater Ecosystems, 20, (4) pp. 378-396. ISSN 1052-7613 (2010) [Refereed Article] http://ecite.utas.edu.au/66998 Environmental Sciences Environmental Science and Management Conservation and Biodiversity Refereed Article PeerReviewed 2010 ftunivtasecite https://doi.org/10.1002/aqc.1075 2019-12-13T21:35:45Z 1. Quantitative subtidal surveys of fishes, macro-invertebrates and sessile organisms at 33 sites within the Lord Howe Island Marine Park revealed a rich fauna and. ora, including 164 fishes, 40 mobile invertebrate taxa, 53 coral and other sessile invertebrate taxa, 32 algal taxa, and two seagrasses. The biota in this newly-zoned marine park was overwhelmingly tropical when species lists were tabulated; however, species with distributions centred on temperate coasts of eastern Australia and New Zealand occurred in disproportionately high densities compared with the tropical species.2. Lord Howe Island reefs were generally in good condition. Virtually no bleached coral was observed (0.2% of the reef surface; 0.8% of total hard coral cover). Living scleractinian coral comprised the predominant group of organisms growing on reef surfaces, with 25.5% cover overall. Other major taxa observed were brown algae (18.8% cover) and red algae (16.9% cover).3. Three distinctive community types were identified within the marine park-coral reefs, macroalgal beds and an offshore/open coast community. The distribution of these community types was strongly related to wave exposure, as indicated by an extremely high correlation with the first principal coordinates axis for biotic data (R-2 = 50.80).4. The close (<3 km) proximity of tropical coral and temperate macroalgal community types off Lord Howe Island is highly unusual, with localized patterns of nutrient enrichment suggested as the primary cause. The macroalgal community type is only known from a small area off the south-western coast that is not protected from fishing. This community is considered highly susceptible to threats because of potential impacts of global warming and the possibility of expansion of sea urchin barrens. Coral bleaching and ocean acidification associated with global climate change also threaten the coral reef community, which includes relatively high numbers of endemic and near endemic fish species. Copyright (C) 2009 John Wiley & Sons, Ltd. Article in Journal/Newspaper Ocean acidification eCite UTAS (University of Tasmania) New Zealand Ora ENVELOPE(7.517,7.517,62.581,62.581) Pacific Aquatic Conservation: Marine and Freshwater Ecosystems 20 4 378 396 |
institution |
Open Polar |
collection |
eCite UTAS (University of Tasmania) |
op_collection_id |
ftunivtasecite |
language |
English |
topic |
Environmental Sciences Environmental Science and Management Conservation and Biodiversity |
spellingShingle |
Environmental Sciences Environmental Science and Management Conservation and Biodiversity Edgar, GJ Davey, A Kelly, G Mawbey, RB Parsons, K Biogeographical and ecological context for managing threats to coral and rocky reef communities in the Lord Howe Island Marine Park, south-western Pacific |
topic_facet |
Environmental Sciences Environmental Science and Management Conservation and Biodiversity |
description |
1. Quantitative subtidal surveys of fishes, macro-invertebrates and sessile organisms at 33 sites within the Lord Howe Island Marine Park revealed a rich fauna and. ora, including 164 fishes, 40 mobile invertebrate taxa, 53 coral and other sessile invertebrate taxa, 32 algal taxa, and two seagrasses. The biota in this newly-zoned marine park was overwhelmingly tropical when species lists were tabulated; however, species with distributions centred on temperate coasts of eastern Australia and New Zealand occurred in disproportionately high densities compared with the tropical species.2. Lord Howe Island reefs were generally in good condition. Virtually no bleached coral was observed (0.2% of the reef surface; 0.8% of total hard coral cover). Living scleractinian coral comprised the predominant group of organisms growing on reef surfaces, with 25.5% cover overall. Other major taxa observed were brown algae (18.8% cover) and red algae (16.9% cover).3. Three distinctive community types were identified within the marine park-coral reefs, macroalgal beds and an offshore/open coast community. The distribution of these community types was strongly related to wave exposure, as indicated by an extremely high correlation with the first principal coordinates axis for biotic data (R-2 = 50.80).4. The close (<3 km) proximity of tropical coral and temperate macroalgal community types off Lord Howe Island is highly unusual, with localized patterns of nutrient enrichment suggested as the primary cause. The macroalgal community type is only known from a small area off the south-western coast that is not protected from fishing. This community is considered highly susceptible to threats because of potential impacts of global warming and the possibility of expansion of sea urchin barrens. Coral bleaching and ocean acidification associated with global climate change also threaten the coral reef community, which includes relatively high numbers of endemic and near endemic fish species. Copyright (C) 2009 John Wiley & Sons, Ltd. |
format |
Article in Journal/Newspaper |
author |
Edgar, GJ Davey, A Kelly, G Mawbey, RB Parsons, K |
author_facet |
Edgar, GJ Davey, A Kelly, G Mawbey, RB Parsons, K |
author_sort |
Edgar, GJ |
title |
Biogeographical and ecological context for managing threats to coral and rocky reef communities in the Lord Howe Island Marine Park, south-western Pacific |
title_short |
Biogeographical and ecological context for managing threats to coral and rocky reef communities in the Lord Howe Island Marine Park, south-western Pacific |
title_full |
Biogeographical and ecological context for managing threats to coral and rocky reef communities in the Lord Howe Island Marine Park, south-western Pacific |
title_fullStr |
Biogeographical and ecological context for managing threats to coral and rocky reef communities in the Lord Howe Island Marine Park, south-western Pacific |
title_full_unstemmed |
Biogeographical and ecological context for managing threats to coral and rocky reef communities in the Lord Howe Island Marine Park, south-western Pacific |
title_sort |
biogeographical and ecological context for managing threats to coral and rocky reef communities in the lord howe island marine park, south-western pacific |
publisher |
John Wiley & Sons Ltd |
publishDate |
2010 |
url |
http://onlinelibrary.wiley.com/ https://doi.org/10.1002/aqc.1075 http://ecite.utas.edu.au/66998 |
long_lat |
ENVELOPE(7.517,7.517,62.581,62.581) |
geographic |
New Zealand Ora Pacific |
geographic_facet |
New Zealand Ora Pacific |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
http://ecite.utas.edu.au/66998/1/Edgar et al10Lord Howe reef analysis.pdf http://dx.doi.org/10.1002/aqc.1075 Edgar, GJ and Davey, A and Kelly, G and Mawbey, RB and Parsons, K, Biogeographical and ecological context for managing threats to coral and rocky reef communities in the Lord Howe Island Marine Park, south-western Pacific, Aquatic Conservation: Marine and Freshwater Ecosystems, 20, (4) pp. 378-396. ISSN 1052-7613 (2010) [Refereed Article] http://ecite.utas.edu.au/66998 |
op_doi |
https://doi.org/10.1002/aqc.1075 |
container_title |
Aquatic Conservation: Marine and Freshwater Ecosystems |
container_volume |
20 |
container_issue |
4 |
container_start_page |
378 |
op_container_end_page |
396 |
_version_ |
1766159196509700096 |