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ID 28930
file
title alternative
瀬戸内海におけるPseudodiaptomus marinus(橈脚亜綱: カラヌス目)の繁殖生態
creator
Iwai, Yuzuru
Kasahara, Shogoro
NDC
Zoology
abstract
The rates of daily egg production were estimated for the egg sac-carrying calanoid copepod Pseudodiaptomus marinus SATO by an integration of data from field and laboratory investigations. The brood size was positively related to the body size of adult females which was in turn negatively related to the environmental temperature. The development time of embryos (D in days) was a function of temperature (T in °C) as expressed by the equation: D=448 (T - 1.0)^<-1.80>. Under excess food conditions, the duration from the hatching of brood to the production of the successive one was generally short and constant (0.14 d) at different temperatures. Assuming sufficient food supply and continuous breeding, the daily reproductive rates of the natural population of P. marinus were high from May to October but much lower from January to March. The ratios of daily egg production: female body weight increased linearly with temperature.
journal title
日本プランクトン学会報
volume
Volume 29
issue
Issue 1
start page
25
end page
35
date of issued
1982-06
publisher
日本プランクトン学会
農林水産研究情報センター
issn
0387-8961
ncid
language
eng
nii type
Journal Article
HU type
Journal Articles
DCMI type
text
format
application/pdf
text version
publisher
rights
Copyright (c) 1982 The Plankton Society of Japan
department
Graduate School of Biosphere Science