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PRECOCIOUS CLASPING OF EARLY COPEPODITE STAGES: A COMMON OCCURRENCE IN ZAUSODES ARENICOLUS WILSON (COPEPODA: HARPACTICOIDA)

PRECOCIOUS CLASPING OF EARLY COPEPODITE STAGES: A COMMON OCCURRENCE IN ZAUSODES ARENICOLUS WILSON... Harpacticoid copepods have long been recognized as numerically important members of the meiobenthos (Mclntyre, 1969), yet their reproductive biology is still poorly understood. Harpacticoid population dynamics have been studied both in the field (e.g., Feller, 1980a; Fleeger, 1979) and in the laboratory (e.g., Gaudy et al., 1982; Walker, 1979) and the reproductive strategies and cycles of these organisms have received attention (Coull and Vernberg, 1975; Hicks, 1979). Unfortunately, relatively little is known of harpacticoid reproductive behavior and many fundamental questions concerning timing and frequency of mating remain unanswered (see review by Hicks and Coull, 1983). There are two phases in harpacticoid reproduction. In the initial phase the male uses his antennules to clasp a female, usually by her caudal rami or dorsally around her prosome. This is followed by transfer of a spermatophore from the male to the female's genital somite (Haq, 1972). The complete process of clasping and spermatophore transfer may take up to several days (Borutskii, 1952). Pre- vious studies have reported male harpacticoids clasping juvenile females, adult females, and even other males (Table 1), although successful transfer of the sper- matophore is thought to occur only to adult females (Feller, 1980b; Ito, 1970; but see http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Crustacean Biology Brill

PRECOCIOUS CLASPING OF EARLY COPEPODITE STAGES: A COMMON OCCURRENCE IN ZAUSODES ARENICOLUS WILSON (COPEPODA: HARPACTICOIDA)

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Publisher
Brill
Copyright
Copyright 1984 by Koninklijke Brill NV, Leiden, The Netherlands
ISSN
0278-0372
eISSN
1937-240X
DOI
10.1163/1937240X84X00372
Publisher site
See Article on Publisher Site

Abstract

Harpacticoid copepods have long been recognized as numerically important members of the meiobenthos (Mclntyre, 1969), yet their reproductive biology is still poorly understood. Harpacticoid population dynamics have been studied both in the field (e.g., Feller, 1980a; Fleeger, 1979) and in the laboratory (e.g., Gaudy et al., 1982; Walker, 1979) and the reproductive strategies and cycles of these organisms have received attention (Coull and Vernberg, 1975; Hicks, 1979). Unfortunately, relatively little is known of harpacticoid reproductive behavior and many fundamental questions concerning timing and frequency of mating remain unanswered (see review by Hicks and Coull, 1983). There are two phases in harpacticoid reproduction. In the initial phase the male uses his antennules to clasp a female, usually by her caudal rami or dorsally around her prosome. This is followed by transfer of a spermatophore from the male to the female's genital somite (Haq, 1972). The complete process of clasping and spermatophore transfer may take up to several days (Borutskii, 1952). Pre- vious studies have reported male harpacticoids clasping juvenile females, adult females, and even other males (Table 1), although successful transfer of the sper- matophore is thought to occur only to adult females (Feller, 1980b; Ito, 1970; but see

Journal

Journal of Crustacean Biology – Brill

Published: Jan 1, 1984

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