From Australian Oceans Data Network
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Halimeda composition and biomass along the Great Barrier Reef

Created 12/03/2025

Updated 12/03/2025

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Inter-reefal Halimeda communities from the far north to southern sections of the Great Barrier Reef were sampled: 1013 Van Veen grab samples from 281 stations, and 76 biomass samples collected by scuba divers from 12 stations. Halimeda, Udotea and Penicillus plants were air-dried, sorted into species, oven-dried and weighed. Organic content was calculated from weight loss after overnight combustion in a muffle furnace.Halimeda communities were differentiated as meadow, mound, and shoal. Species compostion variables were: location, % (of calcareous green algae); where found (within/outside meadows); other plant macrobiota was also recorded.Variables on biomass were: station location and number of samples; means of collection (grab, diver); area (m2); depth (shallow, Other algal species: Caulerpa brachypus, C. cupressoides, C. Mexicana, C. peltata, C. racemosa; Chaetomorpha spp.; Halophila decipiens, H. ovalis, H. spinulosa; Lobophora variegata; Monostroma spp.; Penicillus nodulosus; Struvea elegans; Tydemania expeditionis; Udotea flabellum, U. argentum; Vidalia spp.Locations: Far North section (Blackwood Channel, Creech Reef, Great Detached Reef, Hibernia Entrance, Pandora Reef, Quoin Island Entrance, Second 3-mile Opening, Waterwitch Entrance); Northern section (Lizard Island, Ribbon Reefs); Central section (Bowl Reef); Southern section (Swains reefs).Complements a study of Halimeda on reefs across the central Great Barrier Reef, see separate metadata record.

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Title Halimeda composition and biomass along the Great Barrier Reef
Language eng
Licence notspecified
Landing Page https://devweb.dga.links.com.au/data/dataset/05ed0f87-4022-43a0-a745-843360012f27
Contact Point
CSIRO Oceans & Atmosphere
reception@aims.gov.au
Reference Period 20/11/2017
Geospatial Coverage {"type": "Polygon", "coordinates": [[[143.5, -21.025], [152.7, -21.025], [152.7, -11.75], [143.5, -11.75], [143.5, -21.025]]]}
Data Portal data.gov.au

Data Source

This dataset was originally found on data.gov.au "Halimeda composition and biomass along the Great Barrier Reef". Please visit the source to access the original metadata of the dataset:
https://devweb.dga.links.com.au/data/dataset/halimeda-composition-and-biomass-along-the-great-barrier-reef1

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No duplicate datasets found.