JSON RDF ISO19115-3 XML

Feeding on sponge exudates by a holothuroid at Davies Reef, Great Barrier Reef

Created 24/06/2017

Updated 09/10/2017

JSON RDF ISO19115-3 XML

In the lagoon at Davies Reef, the substrate was cleared around a large specimen of the sponge, Ianthella basta located at a depth of 20m. All specimens of the holothuroid, Synaptula lamperti were removed and the sponge was enclosed in a polythene bag containing glucose and proline labelled with tritium and incubated for 2.5 hours.

After incubation, 81 Synaptula lamperti were returned to the sponge and 5 were retained as a control for background radiation. Five Synaptula lamperti were removed from the sponge after 2, 4, 8, 19.5, 28, 43, 52.5 and 67 hours and dissected into gut and body wall components. Three small pieces were cut from the sponge before the addition of labelled material and at 4, 19.5, 52.5 and 67 hours after returning the holothuroids to the sponge. All tissue samples were frozen and later digested and assayed for radioactivity.

The 41 holothuroids remaining on the sponge were removed for chemical extraction. Soxhlet extractions of sponge and holothuroid tissues were made using organic solvents and then chromatographically fractionated.

To determine whether sponges provided protection to holothuroids against predation, equal numbers of Synaptula lamperti were placed on Ianthella basta and on artificial sponges made of hessian, placed neaby. The experiment was conducted at two depths (5 and 17m) and survival after 1 and 5 days was recorded.

Files and APIs

Tags

Additional Info

Field Value
Title Feeding on sponge exudates by a holothuroid at Davies Reef, Great Barrier Reef
Language English
Licence Other
Landing Page https://devweb.dga.links.com.au/data/dataset/77db5713-680b-4383-bfe6-a726a8a0314b
Contact Point
Australian Institute of Marine Science
adc@aims.gov.au
Geospatial Coverage {"type": "Point", "coordinates": [147.649348, -18.819403]}
Data Portal data.gov.au

Data Source

This dataset was originally found on data.gov.au "Feeding on sponge exudates by a holothuroid at Davies Reef, Great Barrier Reef". Please visit the source to access the original metadata of the dataset:
https://devweb.dga.links.com.au/data/dataset/feeding-on-sponge-exudates-by-a-holothuroid-at-davies-reef-great-barrier-reef

Original dataset
Dataset copies

No duplicate datasets found.