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POPULATION BIOLOGY OF DOROPYGUS PULEX AND GUNENOTOPHORUS GLOBULARIS (COPEPODA), SYMBIONTS WITHIN THE ASCIDIAN POLYCARPA POMARIA (SAVIGNY)

POPULATION BIOLOGY OF DOROPYGUS PULEX AND GUNENOTOPHORUS GLOBULARIS (COPEPODA), SYMBIONTS WITHIN... Ascidians serve as hosts for a number of symbiotic copepod species from a variety of families (Gotto, 1979; Illg and Dudley, 1980). These copepods are often specialized in their morphology and can differ con- siderably from the basic copepod form. The life history and population biology of sym- biotic copepods within ascidians is still poorly known. Species of the genera Doro- pygus and Pachypygus can have two types of males, atypical and typical, and the male development depends on the age of the as- cidian host (Dudley, 1966; Hipeau-Jac- quotte, 1980, 1988). Some symbiotic spe- cies show a life cycle synchronized to that of their annual host (Gage, 1966; Egan, 1984), while others have life cycles more similar to planktonic copepod species (Sva- varsson, 1990). The ascidian Polycarpa pomaria (Savig- ny, 1816) occurs from shallow waters to depths of 450 m, and is known from the Mediterranean to Svalbard and Iceland in the north (Berrill, 1950). It is a fairly large species, up to 7 cm in greatest diameter and height (Millar, 1966, 1970). The population biology of two copepod species found with- in Polycarpa pomaria, Doropygus pulex Thorell, 1859, and Gunenotophorus globu- laris Buchholz, 1869, is discussed http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Crustacean Biology Brill

POPULATION BIOLOGY OF DOROPYGUS PULEX AND GUNENOTOPHORUS GLOBULARIS (COPEPODA), SYMBIONTS WITHIN THE ASCIDIAN POLYCARPA POMARIA (SAVIGNY)

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Publisher
Brill
Copyright
Copyright 1993 by Koninklijke Brill NV, Leiden, The Netherlands
ISSN
0278-0372
eISSN
1937-240X
DOI
10.1163/1937240X93X00110
Publisher site
See Article on Publisher Site

Abstract

Ascidians serve as hosts for a number of symbiotic copepod species from a variety of families (Gotto, 1979; Illg and Dudley, 1980). These copepods are often specialized in their morphology and can differ con- siderably from the basic copepod form. The life history and population biology of sym- biotic copepods within ascidians is still poorly known. Species of the genera Doro- pygus and Pachypygus can have two types of males, atypical and typical, and the male development depends on the age of the as- cidian host (Dudley, 1966; Hipeau-Jac- quotte, 1980, 1988). Some symbiotic spe- cies show a life cycle synchronized to that of their annual host (Gage, 1966; Egan, 1984), while others have life cycles more similar to planktonic copepod species (Sva- varsson, 1990). The ascidian Polycarpa pomaria (Savig- ny, 1816) occurs from shallow waters to depths of 450 m, and is known from the Mediterranean to Svalbard and Iceland in the north (Berrill, 1950). It is a fairly large species, up to 7 cm in greatest diameter and height (Millar, 1966, 1970). The population biology of two copepod species found with- in Polycarpa pomaria, Doropygus pulex Thorell, 1859, and Gunenotophorus globu- laris Buchholz, 1869, is discussed

Journal

Journal of Crustacean BiologyBrill

Published: Jan 1, 1993

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