Rocky reef biodiversity survey: Punta Pardelas, Argentina
Citation
Bravo G, Livore J P, Battini N, Gastaldi M, Lauretta D, Brogger M, Raffo M P, Lagger C, Bigatti G (2021): Rocky reef biodiversity survey: Punta Pardelas, Argentina. v1.10. ArOBIS Centro Nacional Patagónico. Dataset/Samplingevent. http://arobis.cenpat-conicet.gob.ar:8081/resource?r=arrs&v=1.10 https://doi.org/10.15468/xqgdsm accessed via GBIF.org on 2024-08-27.Description
Temperate rocky reefs in the SW Atlantic are productive areas that support highly diverse communities of invertebrates, algae and fishes. Rocky outcrops form complex structures which offer a diversity of microhabitats that lead to a great variety of co-existing species. Subtidal biodiversity within the Natural Protected Area Península Valdés is largely unexplored and studies are mainly limited to fish. A total of 560 high definition photoquadrats from 7 rocky reefs (1-25 m depth) at Punta Pardelas were obtained during March 2019. In total, 4491 occurrences were recorded and identified to phyla (n=2), superclasses (n=1), classes (n=5), subclasses (n=2), orders (n=2), families (n=1), subfamilies (n=1), genera (n=10) and species (n=43) levels. This dataset was developed to provide a baseline inventory of Punta Pardelas inside the Natural Protected Area, that was only partially reported more than 50 years ago. Such data represent the first step towards monitoring these less-accessible ecosystems.Sampling Description
Study Extent
This dataset presents species occurrences and species richness of underwater photoquadrats over rocky reefs in Punta Pardelas, Nuevo Gulf. Sessile species were recorded as percentage cover and mobile fauna as density. This is the first study of benthic communities in Punta Pardelas at three different depth levels: shallow rocky reefs(1-7 m), mid depth rocky reefs (8-15 m) and deep rocky reefs (16-25 m).Sampling
Divers were equipped with a Canon 100D camera and two Ikelite DS-161 strobes mounted on a stainless-steel structure with a 0.0625 m2 quadrat (0.25 x 0.25 m). The camera had a 18-55 mm Canon lens and all the images were taken with the 18 mm setting, autofocus, ISO 400, Exposure 1/200 s at f/11 and flashes set on automatic TTL. A dive computer (Oceanic Geo2) was mounted on one side of the quadrat to register the depth and temperature of each photoquadrat. Divers carried a monofilament line that towed a surface buoy with a GPS loading a waypoint every 3 seconds (Bravo et al. 2021).Quality Control
Species names were assigned when the photograph allowed us to observed the organism's characteristics. When identification was inconclusive, only family or genus names were assigned and, in the case of filamentous algae or sponges, functional groups were assigned. Most of the species were identified by the project codirector Gonzalo Bravo which has extensive knowledge and observations of the local species in the field (see: https://www.inaturalist.org/projects/biodiversidad-submarina-de-lacosta- argentina). In some cases, extractive samples were recollected for taxonomic confirmation or description of species not recorded in the area. The taxonomists that contributed to the identification of photoquadrats were Paula Raffo (Algae), Marianela Gastaldi (Porifera), Cristian Lagger (Tunicates), Martín Brogger (Echinodermata), Gregorio Bigatti (Mollusca) and Daniel Lauretta (Cnidaria: Actiniaria, Coralliorpharia). The taxonomic validity of the names was verified using the World Register of Marine Species (WoRMS; www.marinespecies.org). The geo-referencing of photoquadrats was recorded using a Garmin eTrex 10 GPS (WGS84 Datum) with a 5 m accuracy.Method steps
- GPS and underwater camera time were synchronized. This was done by aligning the camera clock with the GPS clock before each dive. The GPS was set on track mode recording one waypoint every 3 seconds.
- The portable GPS (Garmin Etrex 10) was placed in a dry bag on top of a Rescue Can buoy connected to the diver by a monofilament line using a diving reel. Divers maintained the monofilament line as tight as possible to minimize angles between the buoy and the diver.
- Photoquadrat sampling.
- Photos were georeferenced using the function “Auto-tag photos” in Adobe Lightroom Classic version: 9.1.
- Percentage cover of algae and sessile invertebrates was calculated using a 100 point grid overlaid on each photo, using CoralNet software (Beijbom et al., 2015). On the same image all the mobile fauna was counted to calculate density. All the photoquadrats are stored in a public CoralNet source: https://coralnet.ucsd.edu/source/1933/
Taxonomic Coverages
This database described here is based on photoquadrat taxonomic identification and is supported by local taxonomists. The goal of this study was to update the benthic community data from Punta Pardelas in Nuevo Gulf, Atlantic Patagonia. The taxonomic coverage Fig. 3 includes twelve phyla: Porifera (17%), Mollusca (17%), Rhodophyta (17%), Chordata (14%), Cnidaria (12%), Ochrophyta (8%), Echinodermata (6%), Chlorophyta (4%), Annelida (2%), Arthropoda (1%), Brachiopoda (<1%) and Phatyhelminthes (<1%). The class Calcarea (Porifera), the genus Halcurias (Cnidaria: Actiniaria) and the species Darwinella rosacea (Porifera) represented first records for Nuevo Gulf and were identified by extractive samples by taxonomists.
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Ascidiella aspersarank: species
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Aulacomya atrarank: species
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Anthothoe chilensisrank: species
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Aplidiumrank: genus
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Austromegabalanus psittacusrank: species
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Asterocarpa humilisrank: species
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Corella eumyotarank: species
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Aequipecten tehuelchusrank: species
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Magellania venosarank: species
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Bryozoarank: phylum
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Corynactis carnearank: species
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Ciona intestinalisrank: species
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Aplousobranchiarank: order
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Ciona robustarank: species
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Lithophaginaerank: subfamily
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Diplosoma listerianumrank: species
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Halcuriasrank: genus
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Hydrozoarank: class
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Lissoclinum fragilerank: species
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Metridium senilerank: species
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Myxicolarank: genus
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Paramolgula gregariarank: species
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Parabunodactis imperfectarank: species
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Clathriarank: genus
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Clionarank: genus
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Demospongiaerank: class
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Darwinella rosacearank: species
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Tripalea clavariarank: species
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Terebellidaerank: family
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Polychaetarank: class
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Ralfsialesrank: order
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Corallinophycidaerank: superclass
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Codiumrank: genus
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Corallina officinalisrank: species
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Colpomenia sinuosarank: species
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Dictyota dichotomarank: species
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Rhodymeniophycidaerank: subclass
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Lomentaria clavellosarank: species
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Phaeophyceaerank: class
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Ulvarank: genus
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Undaria pinnatifidarank: species
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Calcarearank: class
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Pseudechinus magellanicusrank: species
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Tegula patagonicarank: species
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Leucippa pentagonarank: species
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Arbacia dufresniirank: species
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Patagonotothenrank: genus
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Ribeiroclinus eigenmannirank: species
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Helcogrammoides cunninghamirank: species
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Pachycheles chubutensisrank: species
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Doris fontainiirank: species
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Diaulula punctuolatarank: species
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Allostichaster capensisrank: species
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Polycera marplatensisrank: species
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Fissurellidea patagonicarank: species
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Fissurella radiosa tixieraerank: species
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Phrikoceros mopsusrank: species
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Cosmasterias luridarank: species
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Sebastes oculatusrank: species
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Trapaniarank: genus
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Cycethra verrucosarank: species
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Pleurobranchaea maculatarank: species
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Ophioplocus januariirank: species
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Odontaster penicillatusrank: species
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Calliostomarank: genus
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Heterobranchiarank: subclass
Geographic Coverages
Nuevo Gulf in Chubut Province, Argentina. We selected 7 rocky reefs grouped in an area of almost 11 km2 in Punta Pardelas.
Bibliographic Citations
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Contacts
Gonzalo Bravooriginator
position: PhD student
Instituto de Biología de Organismos Marinos (IBIOMAR), CCT CONICET- CENPAT
Bvd. Brown 2915
Puerto Madryn
U9120ACD
Chubut
AR
Telephone: +5492804557665
email: gonzalobravoargentina@gmail.com
homepage: http://www.proyectosub.org.ar
userId: http://orcid.org/0000-0001-9380-6668
Juan Pablo Livore
originator
position: Researcher
Instituto de Biología de Organismos Marinos (IBIOMAR), CCT CONICET- CENPAT
Bvd. Brown 2915
Puerto Madryn
U9120ACD
Chubut
AR
email: livore@cenpat-conicet.gob.ar
homepage: https://ibiomar.conicet.gov.ar/
userId: http://orcid.org/0000-0003-0432-7812
Nicolás Battini
originator
position: Post-doc student
Instituto de Biología de Organismos Marinos (IBIOMAR), CCT CONICET- CENPAT
Bvd. Brown 2915
Puerto Madryn
U9120ACD
Chubut
AR
email: battini@cenpat-conicet.gob.ar
homepage: https://ibiomar.conicet.gov.ar/
userId: http://orcid.org/0000-0001-8033-4155
Marianela Gastaldi
originator
position: Researcher
Escuela Superior de Ciencias Marinas - Universidad Nacional del Comahue
San Martín 224
San Antonio Oeste
8520
Río Negro
AR
email: marianelagastaldi@gmail.com
userId: http://orcid.org/0000-0002-2494-0166
Daniel Lauretta
originator
position: Researcher
Museo Argentino de Ciencias Naturales Bernardino Rivadavia
Av.Angel Gallardo 470
Buenos Aires
C1405DJR
Capital Federal
AR
email: dlauretta@gmail.com
userId: http://orcid.org/0000-0001-5344-2425
Martín Brogger
originator
position: Researcher
Instituto de Biología de Organismos Marinos (IBIOMAR), CCT CONICET- CENPAT
Bvd. Brown 2915
Puerto Madryn
U9120ACD
Chubut
AR
email: brogger@cenpat-conicet.gob.ar
userId: http://orcid.org/0000-0002-1229-5032
María Paula Raffo
originator
position: Researcher
Centro Para el Estudio de Sistemas Marinos (CESIMAR)- CCT CONICET- CENPAT
Bvd. Brown 2915
Puerto Madryn
U9120ACD
Chubut
AR
email: raffo@cenpat-conicet.gob.ar
userId: http://orcid.org/0000-0001-8554-8988
Cristian Lagger
originator
position: Researcher
Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)- Instituto de Diversidad y Ecología Animal (IDEA)- Universidad Nacional de Córdoba, Facultad de Ciencias Exactas, Físicas y Naturales. Laboratorio de Ecología Marina
Córdoba
Córdoba
AR
email: cristianlagger@conicet.gov.ar
userId: http://orcid.org/0000-0003-3960-4437
Gregorio Bigatti
originator
position: Researcher
Instituto de Biología de Organismos Marinos (IBIOMAR), CCT CONICET- CENPAT
Bvd. Brown 2915
Puerto Madryn
U9120ACD
Chubut
AR
email: gbigatti@cenpat-conicet.gob.ar
userId: http://orcid.org/0000-0001-7053-6802
Gonzalo Bravo
metadata author
position: PhD student
Instituto de Biología de Organismos Marinos (IBIOMAR), CCT CONICET- CENPAT-
Bvd. Brown 2915
U9120ACD
Chubut
AR
email: gbravo@cenpat-conicet.gob.ar
userId: http://orcid.org/0000-0001-9380-6668
Gonzalo Bravo
administrative point of contact
position: PhD student
Instituto de Biología de Organismos Marinos (IBIOMAR), CCT CONICET- CENPAT
Bvd. Brown 2915
Puerto Madryn
U9120ACD
Chubut
AR
Telephone: +5492804557665
email: gonzalobravoargentina@gmail.com
homepage: http://www.proyectosub.org.ar
userId: http://orcid.org/0000-0001-9380-6668