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Abundance and size of the sponge, Coscinoderma matthewsi, in central Torres Strait (MTSRF Project 1.3.2)

Created 24/06/2017

Updated 09/10/2017

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In March 2007, November 2007 and May 2008, between 6 and 11 sites were surveyed on the coral reefs at Keats Island and Yorke Islands (Masig Island and Kodall Island), in central Torres Strait, to determine the abundance and size frequency patterns of Coscinoderma matthewsi. Sites were located at least 1 km apart and at each site, surveys were conducted at both shallow (4-6 m) and deep (10-12 m) depths, with the former generally on the reef flat. Three 20 x 1 m transects were examined at each depth, with transects separated by at least 20 m to retain independence. For each transect, divers recorded every Coscinoderma matthewsi found within 1 m of one side of the transect line. For each transect, environmental factors such as the degree of reef slope and the percentage of dead coral rubble, sand and consolidated limestone rock, free of living organisms were estimated. For each sponge, the substrate type that it was attached to and growing on was recorded. The habitat in which each sponge was growing was also classified as either exposed (living in an exposed microhabitat, such as on top of rock fully exposed to the ambient water flow) or sheltered (in a sheltered microhabitat, such as under an overhang or protected between surrounding rocks). Sponges were also examined for signs of disease.To examine size frequency distributions patterns, the greatest length, width and height of every Coscinoderma matthewsi was measured with a ruler. For graphical interpretation, sponges were grouped into 2 cm size classes. Some individuals of Coscinoderma matthewsi in Torres Strait have a palmate morphology, where large lobes project upwards from the main sponge base. For each measured sponge, the number of lobes were counted and recorded.

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Title Abundance and size of the sponge, Coscinoderma matthewsi, in central Torres Strait (MTSRF Project 1.3.2)
Language English
Licence Other
Landing Page https://devweb.dga.links.com.au/data/dataset/3b71aeae-6b82-4afa-b770-ac9d0a911764
Contact Point
Australian Institute of Marine Science
adc@aims.gov.au
Geospatial Coverage {"type": "Point", "coordinates": [143.430414, -9.687679]}
Data Portal data.gov.au

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This dataset was originally found on data.gov.au "Abundance and size of the sponge, Coscinoderma matthewsi, in central Torres Strait (MTSRF Project 1.3.2)". Please visit the source to access the original metadata of the dataset:
https://devweb.dga.links.com.au/data/dataset/abundance-and-size-of-the-sponge-coscinoderma-matthewsi-in-central-torres-strait-mtsrf-project-

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