9f9f1936-a748-4e39-8e24-9d12f88d5cb7 urn:uuid eng UTF-8 nonGeographicDataset nonGeographicDataset 2025-06-23T08:04:25 creation ISO 19115 2016 Microherbivore grazing RRAP CAD2-2 experiment 9f9f1936-a748-4e39-8e24-9d12f88d5cb7 These data were collected for an RRAP CAD2-2 experiment looking at the effects of microherbivore grazing on captive coral recruit grow-out. Coral recruits of six species (Acropora millepora, Acropora kenti (formally A. tenuis, referred to as such in the data), Goniastrea retiformis, Porites lobata, Dispastrea speciosa and Lobophyllia corymbosa*) were grown under one of seven treatments: an un-grazed control (Control), manual cleaning of algae around corals by an aquarist (Aquarist), culture with 30 juvenile Tripneustes gratilla sea urchins (Tripneustes), 30 juvenile Echinometra mathaei sea urchins (Echinometra), 30 Calthalotia strigata gastropods (Calthalotia), 30 Turbo haynesi gastropods (Turbo) or 15 Clibanarius cf. taeniatus hermit crabs (Clibanarius), for 112 days, with four replicate 50L tanks per treatment. Tanks walls and the floor around the coral tray (and the tray itself in the aquarist treatment) were cleaned twice weekly, with the time taken to clean each tank recorded to the nearest minute. High resolution photographs where taken of corals and the substrate every two weeks. From these photos, survival was assessed on a fortnightly basis, and growth of the corals from day 0 to day 112 measured by calculating the change in benthic surface area of each recruit using ImageJ software. Composition of algae assemblages on the tiles was assessed at day 0, 56 and 112 using seven coral-free surfaces in each tank. Composition was assessed using CoralCPE software, which applied 20 random points to each coral-free surface, which could then be categorised into different substrate classes (turf, crustose coralline algae, bare tile etc) to assess approximate proportional coverage of these different classes. At the end of the 112 days, counts and size measurements of remaining microherbivores were also taken. *Note: due to low settlement of Lobophyllia corymbosa, this coral was only included in the Control, Tripneustes and Calthalotia treatment. {"type": "Point", "coordinates": [147.055778503418, -19.266100285620677]} 147.055778503418 147.055778503418 -19.266100285620677 -19.266100285620677 Microherbivore data dictionary documentDigital Microherbivore data dictionary PDF Neil, R. C., Barton, J. A., Dougan, W., Dworjanyn, S., Heyward, A., Mos, B., Bourne, D. G., & Humphrey, C. (2024). Size matters: Microherbivores make a big impact in coral aquaculture. Aquaculture, 581, 740402. https://doi.org/10.1016/j.aquaculture.2023.740402 documentDigital Neil, R. C., Barton, J. A., Dougan, W., Dworjanyn, S., Heyward, A., Mos, B., Bourne, D. G., & Humphrey, C. (2024). Size matters: Microherbivores make a big impact in coral aquaculture. Aquaculture, 581, 740402. https://doi.org/10.1016/j.aquaculture.2023.740402 HTML Lobophyllia corymbosa growth documentDigital Lobophyllia corymbosa growth CSV Acropora millepora survival documentDigital Acropora millepora survival CSV Acropora kenti (formally tenuis) survival documentDigital Acropora kenti (formally tenuis) survival CSV Dispastrea speciosa growth documentDigital Dispastrea speciosa growth CSV Goniastrea retiformis growth documentDigital Goniastrea retiformis growth CSV Goniastrea retiformis survival documentDigital Goniastrea retiformis survival CSV Acropora millepora growth documentDigital Acropora millepora growth CSV Dipsastrea speciosa survival documentDigital Dipsastrea speciosa survival CSV Porites lobata growth documentDigital Porites lobata growth CSV Acropora kenti (formally tenuis) growth documentDigital Acropora kenti (formally tenuis) growth CSV Algae coverage data documentDigital Algae coverage data CSV Cleaning time documentDigital Cleaning time CSV Final grazer counts documentDigital Final grazer counts CSV Final grazer sizes documentDigital Final grazer sizes CSV Porites lobata survival documentDigital Porites lobata survival CSV Lobophyllia corymbosa survival documentDigital Lobophyllia corymbosa survival CSV AIMS Web Site documentDigital audio/basic AIMS Web Site documentDigital audio/basic AIMS Web Site documentDigital audio/basic AIMS Web Site documentDigital audio/basic Unnamed resource documentDigital License Graphic PNG Unnamed resource documentDigital HTML