{"help": "https://data.gov.au/data/api/3/action/help_show?name=package_show", "success": true, "result": {"archived": false, "author_email": null, "contact_point": "a.verges@unsw.edu.au", "creator_user_id": "c2fbbe4a-4ba0-4945-808b-67454605a4cf", "duplicate_score": 2, "geospatial_topic": [], "id": "b5670da8-85f9-4121-837c-bd2cba814f73", "isopen": false, "language": "eng", "license_id": "notspecified", "license_title": "notspecified", "maintainer": null, "maintainer_email": null, "metadata_created": "2025-06-23T09:29:21.666877", "metadata_modified": "2025-06-23T09:29:21.666885", "name": "wamsi-node-3-2-2c-spatial-variation-in-algal-herbivore-interactions-on-the-ningaloo-reef-wester1", "notes": "This study was nested in sub-project 3.2.2 \u201cEcosystem impacts of human usage and the effectiveness of zoning for the biodiversity conservation\u201d in Node 3.2. The focus of this study was on trophic effects in the NMP. Due to the importance of herbivores in coral-reef systems, this study focused on characterising and quantifying the process of herbivory in the NMP with a particular emphasis on the removal of adult macroalgae.\nWe used a range of approaches to gain an understanding of spatial and species-related patterns in herbivory in five distinct studies. Using underwater video cameras and Sargassum myriocystum assays, 23 different fish species were observed consuming macroalgae, but seven species (Naso unicornis, Kyphosus sp., K. vaigiensis, Siganus doliatus, Scarus ghobban, S. schlegeli and initial-phase Scarus sp.) together accounted for 95% of the observed bites across five regions. Of these species, three were identified as the most important in consuming macroalgae: N. unicornis, Kyphosus sp. and K. vaigiensis. These results were supported by stable isotope analyses that incorporate nutrients from food sources over far longer periods than those examined using the assay approach.\nThe attached final report provides details on the 5 studies conducted related to herbivory:\n\nSpatial patterns in herbivory on a coral reef are influenced by structural complexity but not by algal traits.\nHerbivore diversity on coral reefs: a transcontinental comparison. \nVariation in macroalgal herbivory by fishes across a western-continental coral-reef system. \nVariability in the food sources of herbivorous invertebrates and fishes in a coral-reef system: a stable isotope approach. \nThe role of herbivory on the spatial distribution of recruiting and established algal communities in coral versus algal dominated habitats.\n", "num_resources": 3, "num_tags": 4, "organization": {"id": "0143757a-86ab-43e4-bba6-4a3a2a02b6c4", "name": "australian-ocean-data-network", "title": "Australian Ocean Data Network", "type": "organization", "description": "Harvester for Australian Ocean Data Network", "image_url": "", "created": "2025-06-23T12:29:10.320926", "is_organization": true, "approval_status": "approved", "state": "active"}, "original_harvest_source": {"site_url": "https://catalogue.aodn.org.au", "href": "https://catalogue.aodn.org.au/geonetwork/srv/eng/csw/dataset/wamsi-node-3-2-2c-spatial-variation-in-algal-herbivore-interactions-on-the-ningaloo-reef-wester1", "title": "Australian Oceans Data Network"}, "owner_org": "0143757a-86ab-43e4-bba6-4a3a2a02b6c4", "private": false, "promotion_level": "0", "spatial": "{\"type\": \"Polygon\", \"coordinates\": [[[113.0, -23.0], [114.0, -23.0], [114.0, -22.0], [113.0, -22.0], [113.0, -23.0]]]}", "spatial_coverage": "{\"type\": \"Polygon\", \"coordinates\": [[[113.0, -23.0], [114.0, -23.0], [114.0, -22.0], [113.0, -22.0], [113.0, -23.0]]]}", "state": "active", "temporal_coverage_from": "2022-05-03 06:57:19", "title": "WAMSI Node 3.2.2c - 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