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Cetacean visual observations using line-transect survey methods onboard the NOAA Ship Gordon Gunter (GU) in the Gulf of America, for the Vessel Surveys for Abundance and Distribution of Marine Mammals and Seabirds project (VSAD survey GU2402) from 2024-06-03 to 2024-08-12 (NCEI Accession 0299731)

Published by NOAA National Centers for Environmental Information | National Oceanic and Atmospheric Administration, Department of Commerce | Metadata Last Checked: January 26, 2026 | Last Modified: 2025-06-05T00:00:00.000+00:00
As part of the Vessel Surveys for Abundance and Distribution of Marine Mammals and Seabirds (VSAD) project, the Southeast Fisheries Science Center (SEFSC) conducted a shipboard survey of the U.S. oceanic waters of the Gulf of America out to the Exclusive Economic Zone (EEZ) from 2024-06-03 to 2024-08-12. The survey was designed for a two-team independent visual observer approach with distance sampling to estimate the detection probabilities for marine mammal sightings. A sighting constituted a single or group of marine mammals (whales and dolphins) seen at the same location and time. This dataset includes marine mammal visual observation data and effort points with surveying conditions that can be used in abundance and density modeling per visual line-transect survey protocols. This dataset also includes opportunistic marine mammal photographs and biopsy samples, and non-marine mammal sightings (a.k.a. occurrences) such as sea turtles.

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0299731 biological data Biopsy cetacean dolphins images MARINE MAMMALS sea turtles species abundance BIG EYE BINOCULARS dart biopsy gun Distance Sampling line transect sampling photograph visual estimate visual observation biological in situ marine mammal observation survey - biological visual estimate visual observation NOAA Ship Gordon Gunter SEFSC - Miami Lab SEFSC - Pascagoula/Stennis Lab SEFSC - Miami Lab Gulf of America Gulf of Mexico oceanography DOC/NOAA/NMFS/SEFSC > Southeast Fisheries Science Center, National Marine Fisheries Service, NOAA, U.S. Department of Commerce University of Miami’s Cooperative Institute for Marine and Atmospheric Studies (CIMAS) Vessel Surveys for Abundance and Distribution of Marine Mammals and Seabirds (VSAD) EARTH SCIENCE > BIOLOGICAL CLASSIFICATION EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > MAMMALS > CETACEANS EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > MARINE MAMMALS EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > MARINE MAMMALS > DOLPHINS EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > REPTILES > TURTLES > SEA TURTLES ATMOSPHERIC/OCEAN INDICATORS BALEEN WHALES BIG EYE BINOCULARS BIOLOGICAL DATA BIOPSY CAMERA CETACEAN DISTANCE SAMPLING DOC/NOAA/NMFS/SEFSC DOLPHINS ENDANGERED SPECIES GULF OF AMERICA GULF OF MEXICO INDICATOR SPECIES In Situ/Laboratory Instruments LINE TRANSECT SAMPLING MARINE MAMMALS PHOTOGRAPH POPULATION ABUNDANCE SHIPS SIGHTING SPECIES ABUNDANCE SPECIES DISTRIBUTION MODELS SPECIES/POPULATION INTERACTIONS TOOTHED WHALES UNITED STATES OF AMERICA VISUAL OBSERVATION Atlantic spotted dolphin Baleen whales Beaked whales Beaked whales of the genus Mesoplodon Blainville's beaked whale Cetacean (large) Cetacean (small) Clymene dolphin Common bottlenose dolphin Common bottlenose or Atlantic spotted dolphin Cuvier's beaked whale Delphinidae Dolphins of the genus Stenella Dwarf sperm whale False killer whale Gervais' beaked whale Melon-headed or Pygmy killer or False killer whale Melon-headed or Pygmy killer whale Melon-headed whale Pantropical spotted dolphin Pilot whales Pygmy killer whale Pygmy or Dwarf sperm whale Pygmy sperm whale Rice's whale Risso's dolphin Rough-toothed dolphin Sperm whale Spinner dolphin Striped dolphin Toothed whales Balaenoptera ricei Caretta caretta Cetacea Chelonia mydas Cheloniidae Delphinidae Dermochelys coriacea Feresa attenuata Globicephala Grampus griseus Istiophoridae Kogia Kogia breviceps Kogia sima Mesoplodon Mesoplodon densirostris Mesoplodon europaeus Mysticeti Odontoceti Peponocephala electra Peponocephala electra or Feresa attenuata Peponocephala electra or Feresa attenuata or Pseudorca crassidens Physeter macrocephalus Pseudorca crassidens Sphyrnidae Stenella Stenella attenuata Stenella clymene Stenella coeruleoalba Stenella frontalis Stenella longirostris Steno bredanensis Thunnus Thunnus thynnus Tursiops truncatus Tursiops truncatus or Stenella frontalis Ziphiidae Ziphius cavirostris BIG EYE BINOCULARS Dart Biopsy Gun Distance Sampling Line Transect Sampling VISUAL OBSERVATIONS > VISUAL OBSERVATIONS Ships Ships GORDON GUNTER (call sign: WTEO, ICES code: 33GG, 1998-) OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > GULF OF AMERICA OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > GULF OF MEXICO 08CYHB

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