Morgan Nicole B nmorgan@fsu.edu 0000-0001-6188-8259 Baco Amy R 2019 Observation of a high abundance aggregation of the deep-sea urchin Chaetodiadema pallidum A. Agassiz and H.L. Clark, 1907 on the Northwestern Hawaiian Island Mokumanamana dataset https://doi.org/10.1594/PANGAEA.903580 2019-07-05T11:59:27 Morgan Nicole B nmorgan@fsu.edu 0000-0001-6188-8259 Baco Amy R 2019 Observation of a high abundance aggregation of the deep-sea urchin Chaetodiadema pallidum A. Agassiz and H.L. Clark, 1907 on the Northwestern Hawaiian Island Mokumanamana journal article Deep Sea Research Part I: Oceanographic Research Papers https://doi.org/10.1016/j.dsr.2019.06.013 AUV images of deep-sea megafauna on the seamount Mokumanamana in the Northwestern Hawaiian Islands revealed a large aggregation of the diadematoid urchin Chaetodiadema pallidum. This species had not been previously recorded on this seamount, but was known from other locations in the Hawaiian Archipelago. A total of 11,360 individuals were counted by eye from 1,369 seafloor images along the 200, 250, and 300 m depth contours on the west side of Mokumanamana. To estimate the full population size, Inverse Distance Weighting and Empirical Bayesian Kriging interpolation calculated a total population size of between 139,552 and 144,063 individuals. These estimates are 1-2 orders of magnitude greater than any previous estimates of urchin aggregation abundances. Little biological data exists for this species; thus, it is difficult to know if this is a spawning aggregation, a feeding front, a type of "schooling" behavior, or some combination thereof, but a food source did seem to be present in the form of mesophotic green algal detritus. -164.8734871 -164.8638271 23.5504274 23.5735142 -164.86842675445445 23.55989165679837 2015-11-03T01:40:05 2015-11-03T05:11:45 177.348 285.723 not specified Mokumanamana 23.56 -164.87 Multiple investigations MULT 14930 CC-BY-4.0 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ DATE/TIME Date/Time http://en.wikipedia.org/wiki/ISO_8601 Time T http://dbpedia.org/resource/Time Morgan Nicole B nmorgan@fsu.edu 0000-0001-6188-8259 Date/Time Transect Transect Morgan Nicole B nmorgan@fsu.edu 0000-0001-6188-8259 Transect File name File name Morgan Nicole B nmorgan@fsu.edu 0000-0001-6188-8259 File name Uniform resource locator/link to image URL image Morgan Nicole B nmorgan@fsu.edu 0000-0001-6188-8259 URL image LATITUDE Latitude http://en.wikipedia.org/wiki/ISO_6709 Morgan Nicole B nmorgan@fsu.edu 0000-0001-6188-8259 Latitude LONGITUDE Longitude http://en.wikipedia.org/wiki/ISO_6709 Morgan Nicole B nmorgan@fsu.edu 0000-0001-6188-8259 Longitude DEPTH, water Depth water m depth http://purl.obolibrary.org/obo/PATO_0001595 water http://purl.obolibrary.org/obo/CHEBI_15377 Length L http://dbpedia.org/resource/Length Morgan Nicole B nmorgan@fsu.edu 0000-0001-6188-8259 Depth water [m] Height above sea floor/altitude Height above sea floor m height http://purl.obolibrary.org/obo/PATO_0000119 sea floor http://purl.obolibrary.org/obo/ENVO_00000482 Length L http://dbpedia.org/resource/Length Morgan Nicole B nmorgan@fsu.edu 0000-0001-6188-8259 Height above sea floor [m] Oxygen O2 µmol/l oxygen O https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:25805 Molar Concentration Morgan Nicole B nmorgan@fsu.edu 0000-0001-6188-8259 O2 [µmol/l] Temperature, water Temp °C Temperature Θ http://dbpedia.org/resource/Temperature water http://purl.obolibrary.org/obo/CHEBI_15377 Morgan Nicole B nmorgan@fsu.edu 0000-0001-6188-8259 Temp [°C] Conductivity Cond mS/cm https://en.wikipedia.org/wiki/Electrical_conductivity conductivity http://purl.obolibrary.org/obo/PATO_0001585 Morgan Nicole B nmorgan@fsu.edu 0000-0001-6188-8259 Cond [mS/cm] Species Species https://en.wikipedia.org/wiki/Species species Morgan Nicole B nmorgan@fsu.edu 0000-0001-6188-8259 Species Number of individuals Ind No # number Abundance or Count Morgan Nicole B nmorgan@fsu.edu 0000-0001-6188-8259 Ind No [#] Chaetodiadema pallidum C. pallidum #/m**2 Chaetodiadema pallidum https://www.marinespecies.org/aphia.php?p=taxdetails&id=513172 Morgan Nicole B nmorgan@fsu.edu 0000-0001-6188-8259 C. pallidum [#/m**2] supplement citable AUV Imagery Seamount Species Range Urchin Aggregation author40531 author70193 event2910169 geocode1599 geocode1600 geocode1601 geocode1619 journal4349 license21 method10667 param149284 param171073 param1882 param25541 param27313 param54243 param7053 param717 param754 param84758 pi70193 ref100345 term1073131 term1073162 term1073288 term1079017 term1896677 term2606205 term2663481 term38494 term43863 term43972 term43975 term44025 term44030 term49384 term49775 term49776 term49777 term49778 topotype1