Data

Fish, shark, ray and benthos biodiversity surveys around remote Timor Sea Shoals

Australian Ocean Data Network
Data Manager (Point of contact) Luke Edwards (Distributes)
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Brief description

Cappo, Heyward, Speare GOALS: To map the benthic habitats, and record the associated fish, shark and ray faunas, of the major clusters of Timor Sea shoals at 3 depth zones : 20-30m, 40-60m and 90-110m. APPROACH: Towed camera footage and real-time seabed classifications [substratum,major benthic groups present (eg seagrass,sponge gardens, gorgonians, hard corals, occurrence of individual benthic animal (eg crabs, starfish, clams)] has been obtained from 3 shoals near Evans Shoal, 6 Karmt shoals and 6 Sahul shoals ; as well as 4 adjacent sites in 96-100m on the continental shelf. BRUVS have been deployed at these same 3 depth zones: 20-30m, 40-60m and 90-110m at 3 shoals near Evans Shoal, 6 Karmt shoals and 6 Sahul shoals; as well as 4 adjacent sites in 96-100m on the shelf. 6 BRUVS were set in a line and towed camera footage was obtained during 3 replicate tows amongst this set of BRUVS. Multivariate statistics will be used to explore associations amongst fish and the benthic habitats they are found in. HIGHLIGHTS TO DATE: · Shallows dominated by extraordinarily rich benthos down to >70m · Shallows have moderately diverse fish faunas, lacking large economically-important sharks, serranids, lutjanids and lethrinids · Deepest zones have most abundant fauna of larger fish in these 3 families · Sharks notably absent c.f. other similar regions (eg Rowley Shoals), and most seen were pups · Several species of lutjanid and serranid recorded for first time in Aust. waters · New photographs obtained of species never filmed underwater before (eg Wattsia, Epinephelus morrhua) · Juvenile lethrinids abunadnt in dense seagrass beds at depth · Seagrass detritus visible down to 100m

Lineage

Original record compiled for the Western Australian Marine Science Institution (WAMSI), Project 3.8, 2008. Original records sourced from AIMS Data Centre export (May, 2008).

Notes

Credit
M. Cappo

Modified: 06 2008

Data time period: 2004-01-01 to 2004-12-01

This dataset is part of a larger collection

Click to explore relationships graph

125.79,-10.7 125.79,-10.88 125.52,-10.88 125.52,-10.7 125.79,-10.7

125.655,-10.79

Identifiers
  • global : 516811d7-cc86-207a-e0440003ba8c79dd