Vertical distribution of jack mackerel Trachurus japonicus larvae in the southern part of the East China Sea

The vertical distribution of jack mackerel Trachurus japonicus larvae was described based on discrete depth sampling using a MTD net system from the surface down to 100 m depth at 13 stations in the southern East China Sea between 27 February and 10 March 2002. Of the 20 782 fish larvae collected, T...

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Bibliographic Details
Published in:Fisheries science 2006-06, Vol.72 (3), p.612-619
Main Authors: Sassa, C.(Seikai National Fisheries Research Inst., Nagasaki (Japan)), Konishi, Y
Format: Article
Language:English
Subjects:
ANIMAL MIGRATION
Chlorophyll
chlorophyll a
CHLOROPHYLLE
CHLOROPHYLLS
CLOROFILAS
Copepoda
DISTRIBUCION ESPACIAL
DISTRIBUTION SPATIALE
EAST CHINA SEA
FISH LARVAE
habitat temperature
jack mackerel
Larvae
LARVAS DE PECES
LARVE DE POISSON
MAR DE CHINA ORIENTAL
Marine
MER DE CHINE ORIENTALE
MIGRACION ANIMAL
MIGRATION ANIMALE
mixed layer
Oceanography
Prey
Scomber
SPATIAL DISTRIBUTION
Standard deviation
TEMPERATURA DEL AGUA
TEMPERATURE DE L'EAU
TRACHURUS JAPONICUS
Vertical distribution
WATER TEMPERATURE
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Summary:The vertical distribution of jack mackerel Trachurus japonicus larvae was described based on discrete depth sampling using a MTD net system from the surface down to 100 m depth at 13 stations in the southern East China Sea between 27 February and 10 March 2002. Of the 20 782 fish larvae collected, T. japonicus larvae were most abundant, accounting for 37.0% of the total catch. The average abundance of the larvae was 419.0 individuals/10 m2, with the average (± standard deviation [SD]) body length of 2.6 ± 0.3 mm (range 1.8–7.5 mm). The larvae were concentrated in the mixed layer, with peak densities in the 10–30 m layer. The average (±SD) weighted mean depth was 21.5 ± 7.8 m. There was no evidence of either diel or ontogenetic vertical migration for the early larvae of
ISSN:0919-9268
1444-2906
DOI:10.1111/j.1444-2906.2006.01191.x