https://doi.org/10.82144/a997e4fc https://seamap.env.duke.edu/dataset/2145 https://www.gbif.org/dataset/730378a0-2049-4d38-a6e6-4dd52b80c5d4 https://obis.org/dataset/1dc828ac-d522-4ebf-97c3-e5a521b4509c 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

A328 LSRC building Durham NC 27708 US

seamap-contact@duke.edu https://seamap.env.duke.edu OBIS-SEAMAP Marine Geospatial Ecology Lab, Duke University

A328 LSRC building Durham NC 27708 US

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: NOAA Southwest Fisheries Science Center (SWFSC) Abstract: In 2015, NOAA Fisheries Southwest Fisheries Science Center (SWFSC) undertook a Collaborative Large Whale Survey (CLaWS) from 9 July through 9 November aboard NOAA Ship Reuben Lasker. The survey was a collaborative effort between SWFSC and NOAA Fisheries Alaska Fisheries Science Center. The study was conducted in U.S. and Canadian waters of the eastern North Pacific (ENP) between the Aleutian Islands, Alaska, and San Diego, California (Fig. 1). The survey was separated into five legs, ranging from 15 to 25 days. The fourth leg of the survey occurred in Canadian Pacific coastal waters between 28 September and 22 October and was a collaborative effort with Dr. John Ford of the Cetacean Research Program, Pacific Biological Station, Fisheries and Oceans Canada. 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 Marine Animal Survey Marine mammals Visual Sighting Vessel N/A SWFSC MMTD Cruise Number: 1648 Perpendicular distance will be released upon permission by the contributor. Please contact the contributor if needed. Attribute descriptions for effort data: dist: Length of the segment (km) Mode: Effort mode type (C = closing mode; P = passing mode) 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/2145 Oceans,Pacific,U.S. West Coast,California,Oregon,Washington,California Current -155.3645 -119.514167 60.230833 33.872833 2015-07-10 2015-11-07 Scientific names are based on the Integrated Taxonomic Information System (ITIS). genus Balaenoptera Baleen whales species Balaenoptera acutorostrata Common minke whale species Balaenoptera borealis Sei whale species Balaenoptera musculus Blue whale species Balaenoptera physalus Fin whale species Callorhinus ursinus Northern fur seal order Cetacea Cetaceans family Delphinidae Dolphins genus Delphinus Common dolphins species Delphinus capensis Long-beaked common dolphin species Delphinus delphis Short-beaked common dolphin species Enhydra lutris Sea otter species Eschrichtius robustus Gray whale species Globicephala macrorhynchus Short-finned pilot whale species Grampus griseus Risso's dolphin species Lagenorhynchus obliquidens Pacific white-sided dolphin species Lissodelphis borealis Northern right whale dolphin species Megaptera novaeangliae Humpback whale species Mirounga angustirostris Northern elephant seal species Orcinus orca Killer whale family Otariidae Eared seals family Phocidae Earless seals species Phocoena phocoena Harbor porpoise family Phocoenidae Porpoises species Phocoenoides dalli Dall's porpoise species Physeter macrocephalus Sperm whale species Tursiops truncatus Common bottlenose dolphin CLAWS = Collaborative Large Whale Survey. Objective: photo ID study of the Pacific Coast Feeding Group (PCFG) of gray whales (Eschrichtius robustus) between central California and Kodiak, Alaska. Vessel: NOAA Ship Reuben Lasker. Study area: U.S. and Canadian waters of the Eastern North Pacific (ENP) between the Aleutian Islands, Alaska, and San Diego, California. 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_2145 2025-07-31T17:37:48-04:00 dataset Moore, J. and D. Weller. 2021. SWFSC Marine Mammal Survey, CLAWS 2015, Cruise 1648. Version 1.0.0. Dataset published in OBIS-SEAMAP. https://doi.org/10.82144/a997e4fc. OBIS-SEAMAP Dataset Page UTF-8 Interactive map https://seamap.env.duke.edu/dataset/2145 FGDC Metadata UTF-8 XML https://seamap.env.duke.edu/dataset/2145/fgdc EML Metadata UTF-8 XML https://seamap.env.duke.edu/dataset/2145/eml OBIS-SEAMAP zd_2145 zd_2145 Weller DW, Carretta JV, Chivers SJ, Ford JKB, Kownacki AK, Lang AR, Martínez-Aguilar S, Rone BK, Schulman-Janiger A. 2017. COLLABORATIVE LARGE WHALE SURVEY 2015: GRAY WHALE PHOTO-IDENTIFICATION CATALOG. NOAA Technical Memorandum: NOAA-TM-NMFS-SWFSC-584.