![\"Creative](\"https://www.marinespecies.org/aphia/images/cc/by.png\")
Spatial and temporal patterns of benthic community structure play a crucial role in shaping reef habitats and have a direct impact on fish foraging dynamics, alongside density-dependence effects on the whole community. In isolated oceanic islands, the relatively low fish species richness often leads to the hyperdominance of a few species and a general reduced trophic redundancy. However, the influence of benthic habitat features and hyperdominant species on foraging selection in oceanic islands has been largely overlooked. This study aimed to investigate, using Remote Underwater Videos (RUVs), whether reef fishes consistently forage on specific habitats across five different oceanic islands in the Atlantic Ocean, especially focusing on the importance of the role of hyperdominant species. We analysed 295 RUVs, within 2m2 areas (3-15 m deep), totalling 49 hours of video. Photoquadrats were utilised to gauge benthic group coverage in the same habitats. Our results revealed five prevalent habitats and six fish trophic groups interacting with reef benthos. The intensity of feeding pressure varied across islands, depending on the diversity of habitats. Herbivores and omnivores exhibited the highest feeding pressure, with omnivores foraging on crustose coralline algae and macroalgae habitats, while herbivores primarily fed on habitats dominated by the epilithic algal matrix. Hyperdominant species forage in multiple habitats, indicating a comparatively high degree of dietary plasticity. Our findings also demonstrated that fish feeding pressure is influenced by both habitat features and fish biomass. Therefore, our study can provide valuable insights for prioritising the management of key species in isolated oceanic reefs.
","EngDescr":null,"OrigAbstract":null,"OrigDescr":null,"Comments":null,"ReleaseDate":"Jan 5 2024 2:21PM","ReleaseDate0":"2024-01-05","OrigDescrLang":null,"EmbargoDate":null,"OrigDescrLangNL":null,"OrigLangCode":null,"OrigLangCodeExtended":null,"OrigLangID":null,"DescrCompFlag":null,"DescrTransFlag":null,"Citation":"Ferrari, D. S., Nunes, L. T., Mendes, T., Ferreira, C. E. L., & Floeter, S. R. (2023). Hyperdominance and habitat composition drive reef fish foraging on Atlantic oceanic islands [Data set]. Zenodo. https://zenodo.org/records/10190848","AccessConstraints":null,"UDate":"2024-11-27","CDate":"2024-07-02","CurrencyDate":null,"RevisionDate":null,"DateLastModified":{"date":"2025-08-07 01:36:28.010000","timezone_type":1,"timezone":"+00:00"},"CheckedFlag":0,"PublicFlag":1,"VlizCoreFlag":1,"MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"StatusID":1,"DasType":"Data","DasTypeID":1,"DasOrigin":"Research: field survey","Progress":null,"AccessConstraint":"Attribution (CC BY)","AccConstrEN":"Attribution (CC BY)","AccConstrDisplay":" This dataset is licensed under a Creative Commons Attribution 4.0 International License.","License":"https://creativecommons.org/licenses/by/4.0/","AccConstrDescription":"This license lets others distribute, remix, tweak, and build upon your work, even commercially, as long as they credit you for the original creation. This is the most accommodating of licenses offered. Recommended for maximum dissemination and use of licensed materials.","Lineage":null,"AccConID":21},"dois":null,"spcols":null,"keywords":null,"parents":[{"DasID":8462,"Acronym":null,"EngAbstract":"Reef fish communities of Mid-Atlantic Ridge Islands (Ascension, Saint Peter and Saint Paul Archipelago, and Saint Helena islands). This dataset is part of the project Mission Atlantic - WP4 (Subtask 4.2.3 Atlantic Open Ocean Island Reef Community) and the case study South Mid Atlantic Ridge (Case Study SOMAR). Three expeditions were done in Ascension (2015), Saint Paul Rocks (2018-2019) and Saint Helena (January 2023).
The data was gathered through underwater visual censuses. The variables collected for the expeditions are: locality, latitude, longitude, transect number, observer, year, depth, species, trophic group according to Quimbayo et al. 2021 (doi.org/10.1002/ecy.3298), size in cm, individual count, if the species is endemic to the Mid-Atlantic ridge islands, and constants a and b in the allometric growth equation (doi.org/10.1002/ecy.3298). The vertical extent of this dataset ranges from 3-36 m depth.
","License":"https://creativecommons.org/licenses/by/4.0/","StandardTitle":"Reef fish communities of Mid-Atlantic ridge islands: Expeditions in Ascension (2015), Saint Peter and Saint Paul Archipelago (2018-2019), and Saint Helena (2023)","doi":"https://doi.org/10.25607/hidlxn","vlizDoi":null}],"children":null,"othrel":null,"othrelrev":null,"ownerships":[{"OrderNr":1,"Surname":"Ferrari","Firstname":"Débora S","Initials":"D.","PerPublicFlag":1,"AdrID":169425,"Email":"ferrari.silva.debora@gmail.com","InsPublicFlag":1,"Acronym":"UFSC","OrigNameLangCode":"pt","OrigNameLangID":44,"FullOrigName":"Universidade Federal de Santa Catarina","InsOwnerCNT":2,"PersID":44442,"InsID":14298,"FullInstitute":"Federal University of Santa Catarina","RoleID":61,"Role":"Data creator","OrigName":"Universidade Federal de Santa Catarina","StandardName":"Federal University of Santa Catarina","FullAcronym":"UFSC","ORC":"https://orcid.org/0000-0002-7524-550X","ROR":null},{"OrderNr":2,"Surname":"Nunes Teixeira","Firstname":"Lucas ","Initials":"L.","PerPublicFlag":1,"AdrID":169352,"Email":"nuneslteixeira@gmail.com","InsPublicFlag":1,"Acronym":"UFF","OrigNameLangCode":"pt","OrigNameLangID":44,"FullOrigName":null,"InsOwnerCNT":2,"PersID":45419,"InsID":15299,"FullInstitute":"Fluminense Federal University","RoleID":61,"Role":"Data creator","OrigName":"Universidade Federal Fluminense","StandardName":"Fluminense Federal University","FullAcronym":"UFF","ORC":"https://orcid.org/0000-0001-9543-4589","ROR":null},{"OrderNr":3,"Surname":"Mendes","Firstname":"Thiago","Initials":null,"PerPublicFlag":1,"AdrID":169153,"Email":null,"InsPublicFlag":1,"Acronym":"USP","OrigNameLangCode":"pt","OrigNameLangID":44,"FullOrigName":"Universidade de São Paulo","InsOwnerCNT":1,"PersID":45418,"InsID":9491,"FullInstitute":"University of São Paulo","RoleID":61,"Role":"Data creator","OrigName":"Universidade de São Paulo","StandardName":"University of São Paulo","FullAcronym":"USP","ORC":null,"ROR":null},{"OrderNr":4,"Surname":"Leite Ferreira","Firstname":"Carlos Eduardo","Initials":null,"PerPublicFlag":1,"AdrID":169175,"Email":"carlosferreira@id.uff.br","InsPublicFlag":1,"Acronym":"UFF","OrigNameLangCode":"pt","OrigNameLangID":44,"FullOrigName":null,"InsOwnerCNT":2,"PersID":44182,"InsID":15299,"FullInstitute":"Fluminense Federal University","RoleID":61,"Role":"Data creator","OrigName":"Universidade Federal Fluminense","StandardName":"Fluminense Federal University","FullAcronym":"UFF","ORC":null,"ROR":null},{"OrderNr":5,"Surname":"Floeter","Firstname":"Sergio","Initials":"S.","PerPublicFlag":1,"AdrID":169448,"Email":"sergio.floeter@ufsc.br","InsPublicFlag":1,"Acronym":"UFSC","OrigNameLangCode":"pt","OrigNameLangID":44,"FullOrigName":"Universidade Federal de Santa Catarina","InsOwnerCNT":2,"PersID":44183,"InsID":14298,"FullInstitute":"Federal University of Santa Catarina","RoleID":61,"Role":"Data creator","OrigName":"Universidade Federal de Santa Catarina","StandardName":"Federal University of Santa Catarina","FullAcronym":"UFSC","ORC":"https://orcid.org/0000-0002-3201-6504","ROR":null}],"taxterms":null,"frameworks":null,"otherterms":null,"temporal":[{"DasDateID":6280,"StartYear":2015,"EndYear":2015,"StartDay":null,"EndDay":null,"StartDate":"2015-01-01","EndDate":"2015-01-01","DasDate":null,"Resolution":null,"ResolutionNL":null,"Notes":null,"StartMonth0":null,"StartMonth":null,"StartMonthNL":null,"EndMonth0":null,"EndMonth":null,"EndMonthNL":null,"Progress":null,"ProgressNL":null}],"geographical":null,"meastypes":null,"dasthemes":[{"DasThemeID":28,"DasTheme":"Biology > Fish","DasTheme0":"Fish","DutchTerm":"Vis"}],"projects":[{"ProID":5112,"Acronym":"MISSION ATLANTIC","Progress":"Completed","StandardTitle":"Towards the Sustainable Development of the Atlantic Ocean: Mapping and Assessing the present and future status of Atlantic marine ecosystems under the influence of climate change and exploitation","FP7Code":null,"GrantDOI":null,"FunderID":"862428","FunderIDType":"EU contract id","FunderCodes":["H2020"]}],"refs":null,"urls":[{"URL":"https://zenodo.org/records/10190848","externalID":null,"URLTypeCode":null,"URLType":"Archived file","URLTypID":28,"downloadURL":null,"FileName":null}],"pictures":null,"urlmaps":null,"spatreps":null,"fileformats":null,"resmessage":"","complete":1}