Southeast Alaska cetacean vessel surveys conducted by Alaska Fisheries Science Center, National Marine Mammals Laboratory from 1991-04-20 to 2012-07-20 (NCEI Accession 0140931)
In 1991, NMML initiated cetacean studies with vessel coverage throughout inland waters of Southeast Alaska. Between 1991 and 1993, line-transect methodology was used to: 1) obtain population estimates of both harbor porpoise and Dalls porpoise, 2) establish a baseline for detecting trends in porpoise abundance, and 3) define porpoise distributional patterns and seasonality. Three line-transect surveys were carried out each year spanning spring, summer, and fall. To update abundance and trends for both harbor porpoise and Dalls porpoise, NMML once again initiated line-transect surveys in 2006 (spring and summer), 2007 (spring, summer and fall), 2010 (summer and fall), 2011 (summer and fall), and 2012 (summer) using methods comparable to those used in the early 1990s.
Complete Metadata
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|---|---|
| accessLevel | non-public |
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|
| describedByType | application/octet-steam |
| description | In 1991, NMML initiated cetacean studies with vessel coverage throughout inland waters of Southeast Alaska. Between 1991 and 1993, line-transect methodology was used to: 1) obtain population estimates of both harbor porpoise and Dalls porpoise, 2) establish a baseline for detecting trends in porpoise abundance, and 3) define porpoise distributional patterns and seasonality. Three line-transect surveys were carried out each year spanning spring, summer, and fall. To update abundance and trends for both harbor porpoise and Dalls porpoise, NMML once again initiated line-transect surveys in 2006 (spring and summer), 2007 (spring, summer and fall), 2010 (summer and fall), 2011 (summer and fall), and 2012 (summer) using methods comparable to those used in the early 1990s. |
| distribution |
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|
| identifier | gov.noaa.nodc:0140931 |
| issued | 2016-01-19T00:00:00.000+00:00 |
| keyword |
[
"0140931",
"ANIMALS - INDIVIDUAL",
"biological data",
"cetacean",
"INDIVIDUAL IDENTITY",
"LATITUDE",
"LONGITUDE",
"MARINE MAMMALS",
"species abundance",
"SPECIES IDENTIFICATION",
"SWELL DIRECTION",
"SWELL HEIGHT",
"VERTEBRATES",
"VISIBILITY",
"WEATHER",
"WIND DIRECTION",
"WIND FORCE",
"WIND SPEED",
"binoculars",
"GPS",
"biological",
"in situ",
"marine mammal observation",
"meteorological",
"survey",
"visual observation",
"Medeia",
"NOAA Ship John N. Cobb",
"USS AQUILA",
"NOAA Alaska Fisheries Science Center, Marine Mammal Laboratory",
"NOAA Alaska Fisheries Science Center, Marine Mammal Laboratory",
"Coastal Waters of Southeast Alaska and British Columbia",
"oceanography",
"DOC/NOAA/NMFS/AFSC/MML > Marine Mammal Laboratory, Alaska Fisheries Science Center, National Marine Fisheries Service, NOAA, U.S. Department of Commerce",
"EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > SURFACE WINDS > WIND DIRECTION",
"EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > SURFACE WINDS > WIND SPEED",
"EARTH SCIENCE > BIOLOGICAL CLASSIFICATION",
"EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES",
"EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > MAMMALS > CETACEANS",
"EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > MARINE MAMMALS",
"EARTH SCIENCE > OCEANS > OCEAN OPTICS",
"EARTH SCIENCE > OCEANS > OCEAN WAVES > SWELLS",
"BINOCULAR > BINOCULAR",
"GPS RECEIVERS > GPS RECEIVERS",
"Ships",
"AQUILA (call sign: NVMZ, ICES code: 3217, 1982-1993)",
"John N. Cobb (call sign: WMVC, ICES code: 31JC, 1950-2008)",
"Medeia (call sign: WDE6486, ICES code: 33MQ)",
"OCEAN > PACIFIC OCEAN > NORTH PACIFIC OCEAN",
"8BE95G"
]
|
| landingPage | https://www.ncei.noaa.gov/contact |
| language |
[]
|
| license | https://creativecommons.org/publicdomain/zero/1.0/ |
| modified | 2016-02-02T00:00:00.000+00:00 |
| publisher |
{
"name": "NOAA National Centers for Environmental Information",
"@type": "org:Organization"
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|
| rights | otherRestrictions |
| spatial | -130.90167,54.6775,-137.06,59.135 |
| temporal | 1991-04-20T00:00:00+00:00/2012-07-20T00:00:00+00:00 |
| title | Southeast Alaska cetacean vessel surveys conducted by Alaska Fisheries Science Center, National Marine Mammals Laboratory from 1991-04-20 to 2012-07-20 (NCEI Accession 0140931) |
