Document of dataset 3340

Dataset record

Type

Dataset

title in English

NMML Gulf of Alaska marine mammal survey 2003

Description in English

Visual surveys for cetaceans were conducted in the Gulf of Alaska in association with a NOAA/Alaska Fisheries Science Center’s pollock stock assessment survey aboard the NOAA ship Miller Freeman from 26 June - 15 July 2003. Standard line-transect methods were used with three observers rotating through two 25x (Big Eye) binocular positions and one recorder on the flying bridge. Survey effort was conducted along the pollock survey transect lines, weather permitting. Additional effort was made while in transit to and from pollock survey waypoints. A total of 2,242 km of trackline were surveyed with 364 cetacean sightings (1,079 individuals). An additional 28 cetacean sightings were made (175 individuals) during off effort periods. Species included harbor porpoise (Phocoena phocoena), Dall’s porpoise (Phocoenoides dalli), Pacific white-sided dolphin (Lagenorhynchus obliquidens), killer whale (Orcinus orca), minke whale (Balaenoptera acutorostrata), fin whale (Balaenoptera physalus), humpback whale (Megaptera novaeangliae), sperm whale (Physeter macrocephalus), Baird’s beaked whale (Berardius bairdii), and Cuvier’s beaked whale (Ziphius cavirostris).

Abstract in English

Data from visual surveys in the Gulf of Alaska conducted to study cetaceans in 2003.

License

https://spdx.org/licenses/CC-BY-NC-4.0.html

bibliographicCitation

Waite, J.M. 2003. Nationl Marine Mammal Laboratory (NMML) Cetacean Assessment and Ecology Program: Cetacean Survey. NOAA AFSC Quarterly Research Reports July-Sept 2003