Details:

Personal Author:
Laidig, Thomas E. ; Silberberg, Kelly R. ; Adams, Peter B. (Peter Burton)
Laidig, Thomas E. ; Silberberg, Kelly R. ; Adams, Peter B. (Peter Burton) Less -
Corporate Authors:
Southwest Fisheries Science Center (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:
The first, second, and third annulus were identified in the dorsal fin rays of lingcod (Ophiodon elongatus). These annuli were validated as indicators of age by calculating the total radius of the fin rays of a lingcod that had completed one, two and three years of growth. Fish lengths came from known-age lingcod (from a rearing study and a year-round field sampling program) and modal progression studies. We measured the radii of the first, second, and third hyaline zone (0.36, 0.54, and 0.75 mm, respectively) from commercial and recreational catches of lingcod. The radii were significantly different among the three zones. Further, the radius of each zone corresponded to the total radius of the fin rays of known-age one-, two-, and three-year-old fish, validating them as true annuli.
Content Notes:
Thomas E. Laidig, Kelly R. Silberberg, and Peter B. Adams.

"June 2001."

System requirements: Adobe Acrobat Reader.

Mode of access: World Wide Web.

Includes bibliographical references (p. 15-19).


Keywords:
[+]
Age Determination Lingcod
Series:
NOAA technical memorandum NMFS ; NOAA-TM-NMFS-SWFSC ; 306
NOAA technical memorandum NMFS ; NOAA-TM-NMFS-SWFSC ; 306 Less -
Document Type:
Technical Memorandum
Rights Information:
Public Domain
Compliance:
Library
Main Document Checksum:
[+]
urn:sha256:c9f88d7d7cbba6794a801e60cc905b196ac4f651083761a1b3f7ad2460097a3d
Download URL:
https://repository.library.noaa.gov/view/noaa/3951/noaa_3951_DS1.pdf
File Type:

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