Preliminary estimates of cetacean abundance off California, Oregon, and Washington based on a 1996 ship survey and comparisons of passing and closing modes

Barlow, Jay.

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Preliminary estimates of cetacean abundance off California, Oregon, and Washington based on a 1996 ship survey and comparisons of passing and closing modes

1997
By Barlow, Jay.
Series: Administrative report LJ ; 97-11

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Personal Author:

Barlow, Jay.
Corporate Authors:

National Marine Fisheries Service (U.S.)
NOAA Program & Office:

NMFS (National Marine Fisheries Service) ; SWFSC (Southwest Fisheries Science Center)

NMFS (National Marine Fisheries Service) ; SWFSC (Southwest Fisheries Science Center) Less -
Description:

Visual sighting surveys on two ships in summer/fall 1996 were used to estimate the abundance of most cetaceans found within 555 km (300 nmi) of the coasts of California, Oregon, and Washington. Surveys systematically covered 14,400 km of pre-determined transect lines within this study area... The 1996 survey was conducted using two National Oceanographic and Atmospheric Administration (NOAA) research vessels... Teams of three observers searched from the flying bridge deck of both vessels using line-transect methods... Two observers searched through 25x pedestal-mounted binoculars while the third observer searched with unaided eyes and a 7x hand-held binocular.
Keywords:

[+]

Cetacea Populations Research
Series:

Administrative report LJ ; 97-11
Document Type:

Administrative Report
Place as Subject:

Pacific Coast (America)
Rights Information:

Public Domain
Compliance:

Library
Main Document Checksum:

[+]

urn:sha256:5ada3c88d8ecea6cee1c6e43027b6d42c656208f8b2518980d3ed91dc1500857
Download URL:

https://repository.library.noaa.gov/view/noaa/25845/noaa_25845_DS1.pdf
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Preliminary estimates of cetacean abundance off California, Oregon, and Washington based on a 1996 ship survey and comparisons of passing and closing modes

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