• norsk
    • English
  • norsk 
    • norsk
    • English
  • Logg inn
Vis innførsel 
  •   Hjem
  • Havforskningsinstituttet
  • Published externally
  • Articles
  • Vis innførsel
  •   Hjem
  • Havforskningsinstituttet
  • Published externally
  • Articles
  • Vis innførsel
JavaScript is disabled for your browser. Some features of this site may not work without it.

A comparison between two sonic measuring systems for demersal fish

Dowd, R. G.; Bakken, Erling; Nakken, Odd
Peer reviewed, Journal article
Thumbnail
Åpne
jfrc_1970_27_04.pdf (216.4Kb)
Permanent lenke
http://hdl.handle.net/11250/108120
Utgivelsesdato
1970
Metadata
Vis full innførsel
Samlinger
  • Articles [2388]
Sammendrag
Two sonic methods for estimation of abundance of fish stocks, the echo integrator and the digital counter methods, were compared on single and schooling fish in the Lofoten area of Norway during March 1969. Good correlation was obtained between the two systems for both situations, but the slopes of the regressions of integrated values on the digital counter differed significantly between low and high density fish concentrations. This suggests that the two systems treated the echo information differently, but nevertheless maintained a linear relation between themselves over a wide range of counts.
Utgiver
Fisheries Research Board of Canada
Tidsskrift
Journal of the Fisheries Research Board of Canada

Kontakt oss | Gi tilbakemelding

Personvernerklæring
DSpace software copyright © 2002-2019  DuraSpace

Levert av  Unit
 

 

Bla i

Hele arkivetDelarkiv og samlingerUtgivelsesdatoForfattereTitlerEmneordDokumenttyperTidsskrifterDenne samlingenUtgivelsesdatoForfattereTitlerEmneordDokumenttyperTidsskrifter

Min side

Logg inn

Statistikk

Besøksstatistikk

Kontakt oss | Gi tilbakemelding

Personvernerklæring
DSpace software copyright © 2002-2019  DuraSpace

Levert av  Unit