Intraspecific variability in Antarctic tintinnids: The Cymatocylis affinis/convallaria species group

Analyses of the morphometry of 630 loricae belonging to the described species Cymatocylis affinis and Cymatocylis convallaria retrieved from 21 samples collected in the Weddel Sea (6O-73°S) strongly suggest that both taxa, including the four formae into which C.affinis was originally divided, are me...

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Detalles Bibliográficos
Autores principales:	Boltovskoy, D., Dinofrio, E.O., Alder, V.A.
Formato:	JOUR
Materias:	systematics tintinnid Antarctica, Weddell Sea Convallaria Cymatocylis Cymatocylis affinis Cymatocylis convallaria Tintinnidae
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_01427873_v12_n2_p403_Boltovskoy
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_01427873_v12_n2_p403_Boltovskoy
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spelling	todo:paper_01427873_v12_n2_p403_Boltovskoy2023-10-03T14:58:52Z Intraspecific variability in Antarctic tintinnids: The Cymatocylis affinis/convallaria species group Boltovskoy, D. Dinofrio, E.O. Alder, V.A. systematics tintinnid Antarctica, Weddell Sea Convallaria Cymatocylis Cymatocylis affinis Cymatocylis convallaria Tintinnidae Analyses of the morphometry of 630 loricae belonging to the described species Cymatocylis affinis and Cymatocylis convallaria retrieved from 21 samples collected in the Weddel Sea (6O-73°S) strongly suggest that both taxa, including the four formae into which C.affinis was originally divided, are members of a single species. The only feature which varies significantly and consistently among the samples surveyed is the total length of the lorica, lowest average lengths being positively correlated with lowest absolute abundances of this tintinnid in the waters sampled. This relationship points to some unfavorable factor(s) which affects both tintinnid reproduction/ survival and growth; the data analysed suggest that drops in the availability of food might be responsible for the size (and abundance) variations observed. © 1990 Oxford University Press. Fil:Boltovskoy, D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Alder, V.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_01427873_v12_n2_p403_Boltovskoy
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	systematics tintinnid Antarctica, Weddell Sea Convallaria Cymatocylis Cymatocylis affinis Cymatocylis convallaria Tintinnidae
spellingShingle	systematics tintinnid Antarctica, Weddell Sea Convallaria Cymatocylis Cymatocylis affinis Cymatocylis convallaria Tintinnidae Boltovskoy, D. Dinofrio, E.O. Alder, V.A. Intraspecific variability in Antarctic tintinnids: The Cymatocylis affinis/convallaria species group
topic_facet	systematics tintinnid Antarctica, Weddell Sea Convallaria Cymatocylis Cymatocylis affinis Cymatocylis convallaria Tintinnidae
description	Analyses of the morphometry of 630 loricae belonging to the described species Cymatocylis affinis and Cymatocylis convallaria retrieved from 21 samples collected in the Weddel Sea (6O-73°S) strongly suggest that both taxa, including the four formae into which C.affinis was originally divided, are members of a single species. The only feature which varies significantly and consistently among the samples surveyed is the total length of the lorica, lowest average lengths being positively correlated with lowest absolute abundances of this tintinnid in the waters sampled. This relationship points to some unfavorable factor(s) which affects both tintinnid reproduction/ survival and growth; the data analysed suggest that drops in the availability of food might be responsible for the size (and abundance) variations observed. © 1990 Oxford University Press.
format	JOUR
author	Boltovskoy, D. Dinofrio, E.O. Alder, V.A.
author_facet	Boltovskoy, D. Dinofrio, E.O. Alder, V.A.
author_sort	Boltovskoy, D.
title	Intraspecific variability in Antarctic tintinnids: The Cymatocylis affinis/convallaria species group
title_short	Intraspecific variability in Antarctic tintinnids: The Cymatocylis affinis/convallaria species group
title_full	Intraspecific variability in Antarctic tintinnids: The Cymatocylis affinis/convallaria species group
title_fullStr	Intraspecific variability in Antarctic tintinnids: The Cymatocylis affinis/convallaria species group
title_full_unstemmed	Intraspecific variability in Antarctic tintinnids: The Cymatocylis affinis/convallaria species group
title_sort	intraspecific variability in antarctic tintinnids: the cymatocylis affinis/convallaria species group
url	http://hdl.handle.net/20.500.12110/paper_01427873_v12_n2_p403_Boltovskoy
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Intraspecific variability in Antarctic tintinnids: The Cymatocylis affinis/convallaria species group

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