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Determining size at maturity and predicting egg extrusion from cement gland development in Homarus americanus / S.L. Waddy and D.E. Aiken. : Fs70-8/80-43E-PDF

"In mature female Homarus, the abdominal cement glands wax and wane with ovarian development and oviposition. As the ova become mature, the glands become progressively more engorged. A simple technique for evaluating this cement gland development has been developed and related to ovarian maturity and egg extrusion. Both macroscopic and microscopic methods of assessing degree of cement gland development on the pleopod endopodites have been described. The technique enables field biologists to examine pleopods in situ to differentiate between a mature and an immature female prior to the spawning season and to determine whether a mature female will spawn in the current season. This will allow an accurate assessment of stage of maturation of any female prior to or during the egg-laying season and should greatly simplify determinations of size at maturity and numbers of mature females in the population."--Abstract.

Lien permanent pour cette publication :
publications.gc.ca/pub?id=9.872471&sl=1

Renseignements sur la publication
Ministère/Organisme
  • Canada. Department of Fisheries and Oceans.
TitreDetermining size at maturity and predicting egg extrusion from cement gland development in Homarus americanus / S.L. Waddy and D.E. Aiken.
Titre de la série
  • CAFSAC research document ; 80/43
Type de publicationMonographie - Voir l'enregistrement principal
Langue[Anglais]
FormatTexte numérique
Document électronique
Note(s)
  • Caption title.
  • Digitized edtion from print [produced by Department of Fisheries and Oceans].
  • "This paper not to be cited without prior reference to the authors."
  • Includes bibliographical references (pages 4-5).
  • Includes abstract in French.
Information sur la publication
  • St. Andrews, New Brunswick : Fisheries and Environmental Sciences, Department of Fisheries and Oceans, Biological Station, [1980].
Auteur / Contributeur
  • Waddy, S. L., author.
  • Aiken, D. E., author.
Description1 online resource (6 pages, 2 unnumbered pages) : illustrations.
Numéro de catalogue
  • Fs70-8/80-43E-PDF
Descripteurs
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