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

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dc.bibliographicCitation.endpage35
dc.bibliographicCitation.stpage23
dc.bibliographicCitation.titleINIDEP Documento Científicoes
dc.bibliographicCitation.volume5
dc.contributor.authorSabatini, M.
dc.contributor.authorÁlvarez Colombo, Gustavo
dc.contributor.authorRamirez, F.C.
dc.coverage.spatialArgentina
dc.coverage.spatialPatagonia
dc.date.accessioned2014-10-07T15:10:39Z
dc.date.available2014-10-07T15:10:39Z
dc.date.issued1999
dc.description.abstractTotal 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.description.notesSánchez, 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.description.statusPublisheden
dc.identifier.citationINIDEP Documento Científico, 5. p. 23-35
dc.identifier.issn0327-9332
dc.identifier.urihttps://marabierto.inidep.edu.ar/handle/inidep/248
dc.identifier.urihttp://hdl.handle.net/1834/2568
dc.language.isoen
dc.publisherMar del Plata: Instituto Nacional de Investigación y Desarrollo Pesquero
dc.subject.asfaZooplanktonen
dc.subject.asfaAbundanceen
dc.subject.asfaSize distributionen
dc.subject.asfaBiomassen
dc.subject.asfaSpawning seasonsen
dc.subject.otherGadiformes
dc.subject.otherGadidae
dc.subject.otherMicromesistius australis
dc.subject.otherpolaca
dc.subject.otherzooplancton
dc.subject.otherdistribución por tamaño
dc.subject.otherestaciones de desove
dc.subject.otherbiomasa
dc.subject.otherabundancia
dc.titleZooplankton biomass in the reproductive area of the southern blue whiting (Micromesistius australis).en
dc.title.alternativeBiomasa del zooplancton en el área reproductiva de la polaca (Micromesistius australis).es
dc.typeJournal Contribution
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1999 - INIDEP Documento Científico Nro 5