Documentation for computer programs used to produce simulated length distributions for spinner dolphin populations

Lichter, Michael; Perryman, Wayne; DeMaster, Douglas

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Documentation for computer programs used to produce simulated length distributions for spinner dolphin populations

1983
By Lichter, Michael ; Perryman, Wayne ; DeMaster, Douglas
Series: Administrative Report LJ ; 83-10

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Personal Author:

Lichter, Michael ; Perryman, Wayne ; DeMaster, Douglas

Lichter, Michael ; Perryman, Wayne ; DeMaster, Douglas Less -
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 computer programs described in this document form part of an effort to arrive at an estimate of crude birth rate for dolphin stocks through the use of aerial photography. Existing techniques allow the estimation of object sizes from photographs with great accuracy. These tehniques can be applied to aerial photographs of dolphin schools, allowing the generation of corresponding length distributions for the photographed schools. Needed for an estimate of crude birth rate is a good estimate of the relative abundance of animals less than one year old in the population. If the relationship between age and length is known, or a reasonable estimate is available, the length frequency distribution generated from photographs may be used to estimate the crude birth rate.
Keywords:

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Computer Programs Population Biology Stenella Longirostris Spinner dolphin
Series:

Administrative Report LJ ; 83-10
Document Type:

Technical Report
Rights Information:

Public Domain
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Library
Main Document Checksum:

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urn:sha256:44812e1d35dd1f9fa0df338246477bc24813903d1156d5c55cef4d9444144958
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https://repository.library.noaa.gov/view/noaa/26650/noaa_26650_DS1.pdf
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Documentation for computer programs used to produce simulated length distributions for spinner dolphin populations

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