An experimental approach to the effects of varying recruitment strategy and food intake on early reproductive traits in a brooding Mediterranean polychaete SCIE SCOPUS

Cited 4 time in WEB OF SCIENCE Cited 4 time in Scopus
Title
An experimental approach to the effects of varying recruitment strategy and food intake on early reproductive traits in a brooding Mediterranean polychaete
Author(s)
Martin, D; Cha, JH; Nozais, C; Bhaud, M
Publication Year
1998
Abstract
We examined the effects of reproductive strategy and food intake on the early life history traits of a Mediterranean population of Eupolymnia nebulosa, a deposit-feeding, tubicolous polychaete. In the Mediterranean E. nebulosa are brood-caring, maturity is attained at 2 yr and up to 4 cocoons are produced per female each year, which reduces larval dispersal. In the Atlantic E. nebulosa are free-spawning, they mature in their first year of life and they produce larger offspring, which are released simultaneously. An experimental population grown from spawn collected in the Mediterranean was divided into 2 groups on the basis of the number of tentacles. These 2 groups were taken to simulate the 2 reproductive strategies: worms with 2, 3, 4 and 5 tentacles at the start for the Mediterranean strategy and worms with 3 tentacles at the start for the Atlantic strategy. They were further subdivided and treated with low-and high-energy diets. After 3 mo the only significant difference was a high number of survivors in the group used to simulate Mediterranean recruitment. After 12 mo the high-energy diet increased survival, mean number of tentacles per individual, total tentacles and total worm biomass, and reduced generation time to 1 yr. Although fecundity of these early breeders was lower than that of 2 yr old worms from both laboratory and field populations, this can be entirely attributed to differences in maternal body size, Based on our experimental results, the ecological implications of the reproductive strategy of Mediterranean E. nebulosa are discussed and a new model of resource allocation is proposed for their populations.
ISSN
0171-8630
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/6274
DOI
10.3354/meps164147
Bibliographic Citation
MARINE ECOLOGY PROGRESS SERIES, v.164, pp.147 - 156, 1998
Publisher
INTER-RESEARCH
Keywords
Terebellidae; Eupolymnia nebulosa; recruitment strategy; food intake; early reproductive traits; NW Mediterranean
Type
Article
Language
English
Document Type
Article
Publisher
INTER-RESEARCH
Files in This Item:
There are no files associated with this item.

qrcode

Items in ScienceWatch@KIOST are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse