Avoidance of hydrodynamically mixed environments by Mnemiopsis leidyi (Ctenophora: Lobata) in open-sea populations from Patagonia, Argentina

Biomass distributions of the ctenophore, Mnemiopsis leidyi, were collected during a week-long survey program in a tidal front along the Patagonian shelf in December 1989. Average ctenophore biomass concentrations varied significantly along a north-south gradient and in stratified compared to unstrat...

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Veröffentlicht in:	Hydrobiologia 2010-05, Vol.645 (1), p.113-124
Hauptverfasser:	Mianzan, Hermes W, Martos, Patricia, Costello, John H, Guerrero, Raúl A
Format:	Artikel
Sprache:	eng
Schlagworte:	Animal and plant ecology Animal, plant and microbial ecology Biological and medical sciences Biomass Biomedical and Life Sciences Cnidaria. Ctenaria Ctenophora Ecology Fluid dynamics Freshwater & Marine Ecology Fundamental and applied biological sciences. Psychology General aspects Invertebrates Jellyfish Blooms Life Sciences Marine Marine biology Mnemiopsis leidyi Summer Synecology Vertical distribution Water column Zoology
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Beschreibung
Zusammenfassung:	Biomass distributions of the ctenophore, Mnemiopsis leidyi, were collected during a week-long survey program in a tidal front along the Patagonian shelf in December 1989. Average ctenophore biomass concentrations varied significantly along a north-south gradient and in stratified compared to unstratified waters. The relative vertical distribution of M. leidyi biomass appeared to be constrained by surface levels of vertical shear. Vertical distributions of ctenophore biomass were highly variable at low levels of vertical shear (
ISSN:	0018-8158 1573-5117
DOI:	10.1007/s10750-010-0218-7