Reproductive pattern of the epifaunal amphipod Pontogeneia rostrata (Crustacea) on Dolsando sandy shore in Korea SCOPUS KCI

Title
Reproductive pattern of the epifaunal amphipod Pontogeneia rostrata (Crustacea) on Dolsando sandy shore in Korea
Author(s)
Yu, O.H.; Jeong, S.J.; Suh, H.-L.
KIOST Author(s)
Yu, Ok Hwan(유옥환)
Publication Year
2008
Abstract
Reproductive patterns of an epifaunal amphipod, Pontogeneia rostrata, were studied on Dolsando sandy shore in Korea. The life history pattern was iteroparous, with recruitment mainly occurring from winter to spring. The sex ratio was male-biased, especially during breeding periods. The mean body length of females was significantly larger than that of males. Brood size and egg volume were positively related to the body length of ovigerous females. There was no significant difference in brood size between successive breeding periods, but egg volumes were significantly higher in early winter (December) than in late spring breeding (May and June), increasing the probability of survival to hatching. These traits contribute to more reproductive potential in early winter than in late spring breeding. The mean brood size of epifaunal P. rostrata was larger but the mean egg volume smaller than that of infaunal amphipods in this sampling area. We suggest that reproductive effort for epifaunal species may be proportionally greater than for infaunal species in risky environments.
ISSN
1738-5261
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/4571
DOI
10.1007/BF03020693
Bibliographic Citation
Ocean Science Journal, v.43, no.3, pp.127 - 133, 2008
Subject
amphipod; breeding season; brood size; egg size; hatching; life history; recruitment (population dynamics); reproductive behavior; sex ratio; spring (season); survival; Asia; Eurasia; Far East; Korea; Amphipoda; Crustacea; Pontogeneia rostrata
Keywords
Epifaunal amphipod; Free-swimmer; Life history; Pontogeneia rostrata; Recruitment; Reproduction; Sandy shore
Type
Article
Language
English
Document Type
Article
Related Researcher
Research Interests

Benthos,저서동물

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