de.pangaea.dataset903580 und dataset PANGAEA

info@pangaea.de

https://www.pangaea.de/ information pointOfContact 2026-07-15T19:30:31Z https://doi.pangaea.de/10.1594/PANGAEA.903580 2019-07-05T11:59:27 publication https://doi.org/10.1594/PANGAEA.903580 Morgan, Nicole B

nmorgan@fsu.edu

https://orcid.org/0000-0001-6188-8259 information author Baco, Amy R author PANGAEA

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https://www.pangaea.de/ information publisher tableDigital Supplement to: Morgan, Nicole B; 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. 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. completed Morgan, Nicole B

nmorgan@fsu.edu

https://orcid.org/0000-0001-6188-8259 information principalInvestigator AUV Imagery Seamount Species Range Urchin Aggregation theme 1995-01-01 creation PANGAEA

info@pangaea.de

https://www.pangaea.de/ information pointOfContact copyright copyright CC-BY-4.0: Creative Commons Attribution 4.0 International textTable und geoscientificInformation -164.8734871 -164.8638271 23.5504274 23.5735142 2015-11-03T01:40:05 2015-11-03T05:11:45 177.348 285.723 DATE/TIME thematicClassification Transect thematicClassification File name thematicClassification Uniform resource locator/link to image thematicClassification LATITUDE thematicClassification LONGITUDE thematicClassification DEPTH, water physicalMeasurement m m Height above sea floor/altitude physicalMeasurement m m Oxygen physicalMeasurement µmol/l µmol/l Temperature, water physicalMeasurement °C °C Conductivity physicalMeasurement mS/cm mS/cm Species thematicClassification Number of individuals physicalMeasurement # # Chaetodiadema pallidum physicalMeasurement #/m**2 #/m**2 text/tab-separated-values unknown https://doi.pangaea.de/10.1594/PANGAEA.903580?format=textfile download dataset The data set was checked for completeness, correctness, and consistency of metainformation. Validity of used methods was checked and - if applicable - precision and range of data. EVENT LABEL: Mokumanamana * LATITUDE: 23.560000 * LONGITUDE: -164.870000 * METHOD/DEVICE: Multiple investigations