Youichi Tsukamoto

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Variations in otolith patterns, sizes and body morphometrics of jack mackerel Trachurus japonicus juveniles were investigated. Under transmitted light, translucent (W(t)) and opaque otoliths (W(o)) were detected in juveniles collected from Wakasa Bay between July 2005 and April 2006, whereas only opaque otoliths (G(o)) were detected in Goto-nada Sea(More)
The new generic name Nemoossis is proposed for the albulid species Pterothrissus belloci Cadenat 1937, a species endemic to the eastern Atlantic Ocean. Nemoossis differs from other genera in the family Albulidae as follows: longer dorsal-fin base, absence of supraneural bones, dorsal-fin rays [51–57 (mode 52)], vertebrae [total number 88–92 (91)], pored(More)
The biological characteristics of Conger myriaster in the East China Sea were studied in May and June (summer), and in November and December (winter), from 2009 to 2010. C. m yriaster was collected mainly at stations in the survey area contained within longitudes 125°E and 128°E and latitudes 28°N and 33°N. Depths and bottom water temperatures for the(More)
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