Publication Date:
2024-04-24
Description:
Background: The growing interest in mineral resources of the deep sea, such as seafloor massive sulfide deposits, has led to an increasing number of exploration licenses issued by the International Seabed Authority. In the Indian Ocean four license areas exist, resulting in an increasing number of new hydrothermal vent fields and the discovery of new species. Most studies focus on active venting areas including their ecology, but the non-vent megafauna of the Central Indian Ridge and South East Indian Ridge remains poorly known.
In the framework of the Indian Ocean Exploration project in the German license area for seafloor massive sulfides, baseline imagery and sampling surveys were conducted yearly during research expeditions from 2013 to 2018, using video sledges and Remotely Operated Vehicles.
New information: This is the first report of an imagery collection of megafauna from the southern Central Indian- and South East Indian Ridge, reporting the taxonomic richness and their distribution. A total of 218 taxa were recorded and identified based on imagery, with additional morphological and molecular confirmed identifications of 20 taxa from 89 sampled specimens. The compiled fauna catalogue is a synthesis of megafauna occurrences aiming at a consistent morphological identification of taxa and showing their regional distribution. The imagery data was collected during multiple research cruises in different exploration clusters of the German license area, located 500 km north of the Rodriguez Triple Junction along the Central Indian Ridge and 500 km southeast of it along the Southeast Indian Ridge .
Keywords:
64PE394; 64PE405; 64PE446; Area/locality; Associated Specimens; Behavior; Biodiversity; biodiversity - ecosystem functioning; Camera equipment; Central Indian Ridge; Class; Coordinate uncertainty; Counted; Cruise/expedition; DATE/TIME; Deep-sea mining; DEPTH, water; ELEVATION; Event label; Exposure; Family; fauna catalogue; Focal length; Frame Code; Gear; Genus; Geodetic system; Geographic name/locality; Hydrothermal activity; Hydrothermal vent, age; Hydrothermal vent site, activity; Identification; Identification qualifier; Identification remarks; Image; Image area; Index; INDEX; INDEX2013; INDEX2014; INDEX2014-24VS; INDEX2014-28VS; INDEX2014-31VS; INDEX2014-33VS; INDEX2014-43VS; INDEX2014-44VS; INDEX2014-46VS; INDEX2014-47VS; INDEX2014-49VS; INDEX2014-54VS; INDEX2014-55VS; INDEX2015; INDEX2015-37ROV; INDEX2015-43ROV; INDEX2015-45ROV; INDEX2015-46VS; INDEX2015-47ROV; INDEX2015-48VS; INDEX2015-49ROV; INDEX2015-51ROV; INDEX2015-52VS; INDEX2015-53ROV; INDEX2015-54VS; INDEX2015-56ROV; INDEX2015-58ROV; INDEX2015-59VS; INDEX2015-60ROV; INDEX2015-61VS; INDEX2015-62ROV; INDEX2016; INDEX2016_06ROV; INDEX2016_12ROV; INDEX2016_16ROV; INDEX2016_20ROV; INDEX2016-02ROV; INDEX2017; INDEX2018; INDEX2018-57ROPOS; INDEX2018-59ROPOS; INDEX2018-61ROPOS; INDEX2018-63ROPOS; INDEX2018-65ROPOS; INDEX2018-67ROPOS; INDEX2018-70ROPOS; INDEX2018-71ROPOS; INDEX2018-73ROPOS; INDEX2018-75ROPOS; INDEX2018-80ROPOS; INDEX2018-82ROPOS; INDEX2018-85ROPOS; INDEX2018-95ROPOS; INDEX2018-97ROPOS; INDEX2018-99ROPOS; Indian Ocean; Institution; ISO-speed; Kingdom; Language; LATITUDE; Leg Number; Life stage; LONGITUDE; Marine polymetallic sulphides (INDEX) – Germany's exploration license in the Indian Ocean; Marker; Method comment; Name; Number of individuals; Occurrence; Ocean Floor Observation System; OFOS; Order; PCR result; Pelagia; Photograph frame code; photographs; Phylum; Pourquoi Pas ? (2005); Remote operated platform for oceanography; Remote operated vehicle; Rodriguez Triple Junction; ROPOS; ROV; Salinity; Sample area/volume; Sampled; Sample ID; Scientific Name authorship; Sequence result; SO230-17-1; SO230-28-1; SO230-31-1; SO230-35-1; SO230-36-1; SO230-38-1; SO230-39-1; SO230-47-1; SO230-49-1; SO230-51-1; SO230-55-1; SO230-57-1; SO230-59-1; SO230-62-1; SO259; SO259_74-1; SO259_83-1; SO259_86-1; SO259_94-1; SOIndex2013; SOIndex2013_17-1; SOIndex2013_28-1; SOIndex2013_31-1; SOIndex2013_35-1; SOIndex2013_36-1; SOIndex2013_38-1; SOIndex2013_39-1; SOIndex2013_44-1; SOIndex2013_47-1; SOIndex2013_49-1; SOIndex2013_51-1; SOIndex2013_55-1; SOIndex2013_57-1; SOIndex2013_59-1; SOIndex2013_62-1; Sonne; Sonne_2; South East Indian Ridge; Species identification; Station label; Taxonomist; Taxon rank; Temperature, water; Tissue Descriptor; Transect; Type; Underwater Video system; Use; UWV; Vessel; VICTOR; Victor6000 ROV; Video/photo sled ID code; video imagery; Video sled; VIDS; Voucher Specimen Code; Water Body; Year of observation
Type:
Dataset
Format:
text/tab-separated-values, 106499 data points
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