Australian Institute of Marine Science – Surveys of Octocoral communities, benthic cover and environmental factors on coral reefs of Hong KongEntry ID: AIMS_Octocorals_HK
Abstract: All surveys were carried out by the principal researcher using Rapid Ecological Assessment.
On each reef, 1-3 sites were surveyed with up to 5 transects (usually 200-300m long, 1-3m wide for 10-15 minutes) per site at pre-defined depths (1-3m, 3-8m, 8-13m, 13-18m and reef flat).
Species recorded: octocorals (soft corals, gorgonians, sea fans, sea whips, sea pens, leather corals, arborescent ... octocorals, blue coral, stoloniferans), black and wire coral. Note that species are mostly at generic level.
Octocoral genera (in some cases species) were given a taxon abundance ranking (0=absent, 1=rare, 2=uncommon, 3=common, 4=abundant, 5=dominant).
Site locations: Bokhara Rocks, Breakers Rock, Fo Shek Chau, Junk Bay, Kung Chau, Lo Chau Pak Poi, Long Ke Wan, Luk Chau, Luk Chau Wan, North Ninepin, Pak Shau, Ping Chao, Po Toi, Sham Wan, South Ninepin, Tai Tau Chau, Waglan.
Additional information was collected during the surveys recording - site variables, visual estimates of abundance for other groups besides octocorlas, zooxanthellate richness. This data is not included in the dataset served to OBIS.
Comparable data are held for the Great Barrier Reef, Palau, Papua New Guinea, Torres Strait, and Rowley Shoals (WA).
To determine spatial patterns and abiotic controls of soft coral biodiversity: allowing examination of relationships of reef location (in-shore, mid-shelf and off-shore), environmental conditions and depth to taxonomic composition and richness.
Because roughly half Octocorals have photosynthetic symbionts they are ideal to assess how biodiversity is related to spatial and environmental factors, and photosynthetic symbionts and energy supply.
To examine principal drivers of biodiversity, community composition, and ranges of coral reef benthos.
Total Distribution Records: 173
Total Number of Taxa: 9 families, 21 genera, 1 species
Data Set Citation
Dataset Originator/Creator: K. Fabricius
Dataset Title: Australian Institute of Marine Science – Surveys of Octocoral communities, benthic cover and environmental factors on coral reefs of Hong Kong
Dataset Release Date: 1999
Dataset Release Place: Australia
Dataset Publisher: OBIS Australia
Start Date: 1999-11-05Stop Date: 1999-11-15
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Phone: +61 7 4753 4412
Email: k.fabricius at aims.gov.au
Australian Institute of Marine Science, PMB No.3
Province or State: QLD
Postal Code: 4810
Role: TECHNICAL CONTACT
Phone: +61 7 4753 4419
Email: g.ericson at aims.gov.au
Province or State: Queensland
Postal Code: 4810
Fabricius and Alderslade (2001), Soft Corals and Sea Fans, From published data and collections available in research centres.
Fabricius KE (2001), Identification and documentation of octocorals from Hong Kong waters., Australian Institute of Marine Science, 27 p.
Fabricius KE and McCorry D (2006), Changes in octocoral communities and benthic cover along a water quality gradient in the reefs of Hong Kong., Marine Pollution Bulletin, 52, 22-33
Benayahu Y, Fabricius KE (2010), Some Octocorallia (Alcyonacea) from Hong Kong, with a description of Paraminabea rubeusa spec. nov., Pacific Sciences
Creation and Review Dates
DIF Creation Date: 2009-07-15
Last DIF Revision Date: 2011-04-21