Zooplankton biomass in the reproductive area of the southern blue whiting (Micromesistius australis).

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dc.contributor.author Sabatini, M.
dc.contributor.author Álvarez Colombo, Gustavo
dc.contributor.author Ramirez, F.C.
dc.coverage.spatial Argentina
dc.coverage.spatial Patagonia
dc.date.accessioned 2014-10-07T15:10:39Z
dc.date.available 2014-10-07T15:10:39Z
dc.date.issued 1999
dc.identifier.citation INIDEP Documento Científico, 5. p. 23-35
dc.identifier.issn 0327-9332
dc.identifier.uri http://hdl.handle.net/1834/2568
dc.description.abstract Total and size-fractioned zooplankton biomass (larger and smaller than 5 mm) were analyzed over two cruises conducted in the late austral winter (September 1994 and 1995) in the area surrounding Malvinas Islands at the time that massive spawning of southern blue whiting was expected to take place. Biomass was rather uniformly distributed in the area and dominated by the fraction larger than 5 mm in which euphausiids and secondarily chaetognaths were dominating in terms of both weight and number. The smaller fraction was mostly made up of copepods. From the high occurrence of euphausiids and seasonal abundance of the several species of copepods normally present within the area it was hypothesised that the feeding requirements of juvenile and adult blue whiting as well as those of larvae and postlarvae may be met during the winter spawning season. The data were also examined in conjunction with the general pattern of zooplankton biomass occurring in autumn and spring in the Southern Patagonian shelf. en
dc.language.iso en
dc.publisher Mar del Plata: Instituto Nacional de Investigación y Desarrollo Pesquero
dc.subject.other Gadiformes
dc.subject.other Gadidae
dc.subject.other Micromesistius australis
dc.subject.other polaca
dc.subject.other zooplancton
dc.subject.other distribución por tamaño
dc.subject.other estaciones de desove
dc.subject.other biomasa
dc.subject.other abundancia
dc.title Zooplankton biomass in the reproductive area of the southern blue whiting (Micromesistius australis). en
dc.title.alternative Biomasa del zooplancton en el área reproductiva de la polaca (Micromesistius australis). es
dc.type Journal Contribution
dc.subject.asfa Zooplankton en
dc.subject.asfa Abundance en
dc.subject.asfa Size distribution en
dc.subject.asfa Biomass en
dc.subject.asfa Spawning seasons en
dc.description.status Published en
dc.description.notes Sánchez, R.P.; ed. 1999. Reproductive habitat, biology and acoustic biomass estiomates of the southern blue whiting (Micromesistius australis) in the sea off southern patagonia. INIDEP Documento Científico, 5: 93 p.
dc.bibliographicCitation.endpage 35
dc.bibliographicCitation.stpage 23
dc.bibliographicCitation.title INIDEP Documento Científico es
dc.bibliographicCitation.volume 5

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