https://doi.org/10.82144/10600ab5 https://seamap.env.duke.edu/dataset/209 https://www.gbif.org/dataset/706f20d9-786a-4355-927b-3b18bac066e5 https://obis.org/dataset/1618ada2-606b-4b4e-83ec-f00cfaa8cef2 Jeffrey Moore Southwest Fisheries Science Center, NOAA Primary contact jeff.e.moore@noaa.gov https://www.fisheries.noaa.gov/west-coast/science-data/california-current-marine-mammal-assessment-program Dave Weller NOAA Southwest Fisheries Science Center Secondary contact dave.weller@noaa.gov OBIS-SEAMAP Marine Geospatial Ecology Lab, Duke University

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seamap-contact@duke.edu https://seamap.env.duke.edu distributor Jeffrey Moore Southwest Fisheries Science Center, NOAA Primary contact jeff.e.moore@noaa.gov https://www.fisheries.noaa.gov/west-coast/science-data/california-current-marine-mammal-assessment-program owner Dave Weller NOAA Southwest Fisheries Science Center Secondary contact dave.weller@noaa.gov originator 2025-07-31 eng Original provider: NOAA Southwest Fisheries Science Center (SWFSC) Dataset credits: Marine Mammal and Turtle Division, Southwest Fisheries Science Center, NMFS, NOAA Abstract: This 1992 line-transect survey was designed to make abundance estimates of the central stock of common dolphin, <i>Delphinus delphis</i>, in the eastern Pacific. This stock of dolphin is taken in the tropical tuna fishery and has suffered a substantial decline. Previous surveys covering larger areas have permitted estimates of abundance, but with low precision. This survey was conducted by the NOAA Southwest Fisheries Science Center aboard NOAA Ships <i>David Starr Jordan</i> and <i>McArthur</i> for a combined total of approximately 32,000 kilometers surveyed from late July to early November 1992. This dataset provides the time-date and geographical coordinates, by species/stock, of all cetaceans detected during the survey, as well as the daily and intra-daily start and end points of the line-transect survey by the NOAA Ship <i>McArthur</i>. Occurrence GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type.xml Observation GBIF Dataset Subtype Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_subtype.xml Marine Biology Visual sighting Vessels Sightings Cetaceans Whales Dolphins Delphinus Population Abundance Survey Census PODS N/A This dataset is supplemental to the following datasets: SWFSC Marine Mammal Survey, PODS 1992, Cruise 1468 SWFSC Marine Mammal Survey, PODS 1993, Cruise 1508 SWFSC Marine Mammal Survey, PODS 1993, Cruise 1509 SWFSC Marine Mammal Survey, Delphinus 2009, Cruise 1640 To the extent possible under law, the publisher has waived all rights to these data and has dedicated them to the Public Domain (CC0 1.0). Users may copy, modify, distribute and use the work, including for commercial purposes, without restriction. https://seamap.env.duke.edu/dataset/209 Oceans,Pacific,California Current,California,Mexico,Gulf of California -117.42 -77.48 32.57 2.01 1992-07-28 1992-11-01 Scientific names are based on the Integrated Taxonomic Information System (ITIS). genus Balaenoptera Baleen whales species Balaenoptera acutorostrata Common minke whale species Balaenoptera edeni Eden's whale species Balaenoptera musculus Blue whale species Berardius bairdii Baird's beaked whale species Caretta caretta Loggerhead sea turtle order Cetacea Cetaceans family Cheloniidae Sea turtles genus Delphinus Common dolphins species Delphinus capensis Long-beaked common dolphin species Delphinus delphis Short-beaked common dolphin species Dermochelys coriacea Leatherback sea turtle species Feresa attenuata Pygmy killer whale species Globicephala macrorhynchus Short-finned pilot whale species Grampus griseus Risso's dolphin species Kogia sima Dwarf sperm whale species Lagenorhynchus obliquidens Pacific white-sided dolphin species Lepidochelys olivacea Olive ridley species Megaptera novaeangliae Humpback whale genus Mesoplodon Beaked whales species Mesoplodon densirostris Blainville's beaked whale species Orcinus orca Killer whale species Peponocephala electra Melon-headed whale species Physeter macrocephalus Sperm whale species Pseudorca crassidens False killer whale species Stenella attenuata Pantropical spotted dolphin subspecies Stenella attenuata graffmani Coastal spotted dolphin species Stenella coeruleoalba Striped dolphin species Stenella longirostris Spinner dolphin subspecies Stenella longirostris centroamericana subspecies Stenella longirostris orientalis species Steno bredanensis Rough-toothed dolphin species Tursiops truncatus Common bottlenose dolphin genus Ziphius Goose-beaked whales species Ziphius cavirostris Cuvier's beaked whale The primary purpose of the cruise was to survey the area inhabited by the central stock of common dolphins, and to make an estimate of its absolute abundance in order to assess the impact of the dolphins killed by the United States and international yellowfin tuna purse seine fleet in the eastern tropical Pacific. notPlanned Jeffrey Moore Southwest Fisheries Science Center, NOAA Primary contact jeff.e.moore@noaa.gov https://www.fisheries.noaa.gov/west-coast/science-data/california-current-marine-mammal-assessment-program NA NA NA Jeffrey Moore owner Dave Weller originator NA zd_209 2025-07-31T14:12:08-04:00 dataset Moore, J. and D. Weller. 2021. SWFSC Marine Mammal Survey, PODS 1992, Cruise 1467. Version 1.0.0. Dataset published in OBIS-SEAMAP. https://doi.org/10.82144/10600ab5. OBIS-SEAMAP Dataset Page UTF-8 Interactive map https://seamap.env.duke.edu/dataset/209 FGDC Metadata UTF-8 XML https://seamap.env.duke.edu/dataset/209/fgdc EML Metadata UTF-8 XML https://seamap.env.duke.edu/dataset/209/eml OBIS-SEAMAP zd_209 zd_209 Mangels, Karl F., and Tim Gerrodette. 1994. Report on cetacean sightings during a marine mammal survey in the Eastern Tropical Pacific Ocean aboard the NOAA Ships McArthur and David Starr Jordan, July 28-November 2, 1992. NOAA-TM-NMFS-SWFSC-200.