Preliminary study on the gonad development of the exotic ascidian Styela clava in Cork Harbour, Ireland

Authors
Parker, LE Culloty, S O'Riordan, RM Kelleher, B Steele, S Van der Velde, G
Citation
Le. Parker et al., Preliminary study on the gonad development of the exotic ascidian Styela clava in Cork Harbour, Ireland, J MARINE BI, 79(6), 1999, pp. 1141-1142
Citations number
8
Categorie Soggetti
Aquatic Sciences
Journal title
JOURNAL OF THE MARINE BIOLOGICAL ASSOCIATION OF THE UNITED KINGDOM
ISSN journal
00253154 → ACNP
Volume
79
Issue
6
Year of publication
1999
Pages
1141 - 1142
Database
ISI
SICI code
0025-3154(199912)79:6<1141:PSOTGD>2.0.ZU;2-2
Abstract
The reproductive cycle, development and spatial organization of the gonads of an exotic ascidian, Styela clava, were studied in Cork Harbour, Ireland. Monthly histological samples enabled the division of gonad development int o six main stages, ranging from 'inactive' to 'regression'. Gonad developme nt was asynchronous in the population, with more than one stage being found within some months. Gametogenesis was observed from February-November, but peaked between August-October. Spawning took place in September-October, f ollowed by gonad regression in November-December.