Influence of food quality on egg production and viability of the marine planktonic copepod Acartia omorii SCIE SCOPUS

Cited 61 time in WEB OF SCIENCE Cited 0 time in Scopus
Title
Influence of food quality on egg production and viability of the marine planktonic copepod Acartia omorii
Author(s)
Shin, K; Jang, MC; Jang, PK; Ju, SJ; Lee, TK; Chang, M
KIOST Author(s)
Shin, Kyoungsoon(신경순)Jang, Pung Guk(장풍국)Lee, Taek Kyun(이택견)
Publication Year
2003-06
Abstract
Egg production, egg viability and fecal pellet production were determined for individual Acartia omorii, which were fed diets of two species of diatoms (Skeletonema costatum and Phaeodactylum tricornutum) and three species of dinoflagellates (Scrippsiella trochoidea, Heterocapsa triquetra and Cochlodinium polykrikoides). Diets were analyzed for fatty acid content as an indicator of food quality. Depending on the diet, egg production of A. omorii varied over time, diminishing with some diets (S. trochoidea, C. polykrikoides, P. tricornutum). This rate of reduction was much more rapid for a diet of C. polykrikoides, which caused egg production to decrease to ca. 2.4 eggs f(-1) d(-1) in only four days. As for all diets, egg viability was high at the beginning but with the C. polykrikoides and P. tricornutum diets, it rapidly decreased with time. Fecal pellet production also varied with time, depending on the diet. Egg production rate was closely correlated with fecal pellet production. There was no direct relationship between egg viability and egg production rate, but both egg production and viability were affected by the nutritional quality of food. Egg viability was also highly dependent on the composition of fatty acids in the eggs. Egg viability showed positive correlation with the ratio of omega3:omega6 groups among egg fatty acids, and negative correlation with the ratio of 20:5 (n-3) : 22:6 (n-3). While comparing several diets, egg production rate was higher on diets (H. triquetra and S. trochoidea) containing ample amounts of essential fatty acids such as 18:4 (n-3) and 22:6 (n-3). The results suggest that fertility of A. omorii was dependent upon the quality of the food, and dinoflagellate diets, with the exception of C. polykrikoides, were preferable to diatom diets. (C) 2003 Elsevier Ltd. All rights reserved.
ISSN
0079-6611
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/5504
DOI
10.1016/S0079-6611(03)00101-0
Bibliographic Citation
PROGRESS IN OCEANOGRAPHY, v.57, no.3-4, pp.265 - 277, 2003
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Type
Article
Language
English
Document Type
Article; Proceedings Paper
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Related Researcher
Research Interests

Marine virus,Marine pathogens,해양바이러스,해양병원체

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