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Growth and maturation variability of female John Dory (Zeus faber) in the East China Sea in relation to thermal gradients Yoneda, M.; Yamamoto, K.; Yamasaki, S.; Matsuyama, M. (2006). Growth and maturation variability of female John Dory (Zeus faber) in the East China Sea in relation to thermal gradients. J. Mar. Biol. Ass. U.K. 86(4): 885-892. https://dx.doi.org/10.1017/S0025315406013828 In: Journal of the Marine Biological Association of the United Kingdom. Cambridge University Press/Marine Biological Association of the United Kingdom: Cambridge. ISSN 0025-3154; e-ISSN 1469-7769

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Beschikbaar in	Auteurs
VLIZ: Non-open access 353469 [ aanvragen ]

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Trefwoorden

Environmental conditions INW, Donghai Sea Motion > Water motion > Water currents Population factors > Condition factor Population functions > Growth Properties > Biological properties > Sexual maturity Spatial variations Zeus faber Linnaeus, 1758 [WoRMS] Pacific, Kuroshio Current [Marine Regions] Marien/Kust

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Auteurs		Top
Yoneda, M. Yamamoto, K. Yamasaki, S. Matsuyama, M.

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Abstract

This study explored whether the growth and sexual maturity of female John Dory (Zeus faber) differed in relation to hydrographic conditions at sample sites in the East China Sea. John Dory were collected around the margin of the continental shelf from the north-east to south-west waters of the East China Sea, and seasonal changes in spatial distribution were unclear. These probably reflected physiological constraints on salinity, as John Dory are distributed only in waters of high salinity. Thermal gradients along latitudinal lines were evident within sample sites. The northern population was subject to lower temperatures than the southern population during all sampling periods. There were no significant differences in length-age relationships between sampling locations, although the northern population had better body condition than their southern counterparts for a given length. However, northern John Dory matured earlier than their southern counterparts with the same relative condition factor.

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