CANNIBALISM WITHIN MATING PAIRS OF THE PARASITIC ISOPOD, ICHTHYOXENUS FUSHANENSIS

CANNIBALISM WITHIN MATING PAIRS OF THE PARASITIC ISOPOD, ICHTHYOXENUS FUSHANENSIS

Two types of sexual cannibalism, differing in the sex of the victim, were found among heterosexual pairs of the parasitic isopod Ichthyoxenus fushanensis Tsai and Dai, 1999, residing in the body cavity of the freshwater fish Varicorhinus bacbatulus (Pellegrin, 1908). In one type, categorized as sexu...

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Veröffentlicht in:Journal of crustacean biology 2003-08, Vol.23 (3), p.662-668
Hauptverfasser: Tsai, Min-Li, Dai, Chang-Feng
Format: Artikel
Sprache:eng
Schlagworte:
Animal cannibalism
Body length
Body size
Breeding seasons
Clutch size
CONTENTS
Female animals
Freshwater
Ichthyoxenus fushanensis
Male animals
Mating behavior
Parasite hosts
Parasitism
Varicorhinus bacbatulus
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Beschreibung
Zusammenfassung:Two types of sexual cannibalism, differing in the sex of the victim, were found among heterosexual pairs of the parasitic isopod Ichthyoxenus fushanensis Tsai and Dai, 1999, residing in the body cavity of the freshwater fish Varicorhinus bacbatulus (Pellegrin, 1908). In one type, categorized as sexual cannibalism, the male was consumed by the female before or after mating. In the other, reversed type, the female was eaten by her mate during or after breeding. Both types of cannibalism occurred during the breeding season from April to November, with female-on-male cannibalism occurring earlier on, and the reversed type later. Both types of cannibalism occurred in pairs inhabiting smaller hosts (
ISSN:0278-0372
1937-240X
DOI:10.1651/C-2343