Rocky reef biodiversity survey: Punta Pardelas, Argentina
Creators
- 1. Instituto de Biología de Organismos Marinos (IBIOMAR), CCT CONICET- CENPAT, Puerto Madryn, Argentina|Fundación ProyectoSub, Puerto Madryn, Argentina
- 2. Instituto de Biología de Organismos Marinos (IBIOMAR), CCT CONICET- CENPAT, Puerto Madryn, Argentina
- 3. Escuela Superior de Ciencias Marinas - Universidad Nacional del Comahue, San Antonio Oeste, Argentina
- 4. Museo Argentino de Ciencias Naturales Bernardino Rivadavia, Buenos Aires, Argentina
- 5. Centro Para el Estudio de Sistemas Marinos (CESIMAR)- CCT CONICET- CENPAT, Puerto Madryn, Argentina
- 6. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)- Instituto de Diversidad y Ecología Animal (IDEA), Córdoba, Argentina|Universidad Nacional de Córdoba, Facultad de Ciencias Exactas, Físicas y Naturales. Laboratorio de Ecología Marina, Córdoba, Argentina
- 7. Instituto de Biología de Organismos Marinos (IBIOMAR), CCT CONICET- CENPAT, Puerto Madryn, Argentina|Universidad Espíritu Santo, Guayaquil, Ecuador|Fundación ProyectoSub, Puerto Madryn, Argentina
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 seven 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.
Most of the available information about Atlantic Patagonian marine biodiversity is related to rocky intertidal communities or rocky reef fish communities. Despite having more than 4000 km of coastline, in the last 20 years only four studies have focused on subtidal benthic communities from shallow rocky reefs in Argentina (Genzano et al. 2011, Rechimont et al. 2013, Bravo et al. 2015, Bravo et al. 2020a). However, none of them described the epi-benthic community of different surface orientations on the rocky reefs. This dataset includes several surface orientations (i.e. horizontal, vertical, overhang and cave floor) and their microhabitats. We found almost double the number of taxa previously reported for the area. Through stratified sampling of different surface orientations, we recorded species that are often overlooked and thus registered as part of the existing biodiversity. For example, overhang surfaces in our study showed a unique assemblage and a great diversity of sponges. This work will be valuable as baseline information that is currently out of date in Nuevo Gulf rocky reefs.
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Related works
- Has part
- Figure: 10.3897/BDJ.9.e72081.figure1 (DOI)
- Figure: 10.3897/BDJ.9.e72081.figure2 (DOI)
- Figure: 10.3897/BDJ.9.e72081.figure3 (DOI)