キジハタ仔稚魚の側線系感覚器の形成過程

DOI 日本農学文献記事索引 Web Site 被引用文献1件 参考文献26件

書誌事項

タイトル別名
  • Development of Free and Canal Neuromasts with Special Reference to Sensory Polarity in Larvae of the Red Spotted Grouper, Epinephelus akaara.
  • キジハタ シチギョ ノ ソクセンケイ カンカクキ ノ ケイセイ カテイ

この論文をさがす

抄録

Morphological changes of free neuromasts in larvae of the red spotted grouper, Epinephelus akaara were described. A free neuromast was found on the epidermal free surface of the head region in newly hatched larvae (1.25-2.01 mm TL) and their number increased on both the head and trunk with larval growth. All free neuromasts contained sensory cells of opposing polarity. The orientation of maximum sensitivity of free neuromasts, judged from the polarity of the sensory cells, coincided with the minor axis of the outline of the apical surface of the free neuromasts. Four-day-old larvae (2.36-2.47 mm TL) were at the postlarval stage and the polarity of head neuromasts at this stage was usually oriented along the antero-posterior axis of the fish, but occasionally had a dorso-ventral orientation. The apical surface of free neuromasts changed in outline from a circle to a lozenge as the number of sensory cells started to increase in the pelagic larval stage (twelve-day-old larvae, 5.54-7.71 mm TL) . Free neuromasts were oriented on lines tangential to concentric circles around the eyes and nostrils. The development of schooling was recognized concomitant with the formation of the canal organ in the head region in thirtyfive-day-old juveniles (18.15-18.91 mm TL) . Forty-five-day-old juveniles (5.54-7.71 mm TL) attained a benthic-life stage and had nearly mature canal organs. The cupulae of the free neuromasts changed from a stick-like to a blade-like shape on both the head and trunk.

収録刊行物

  • 水産増殖

    水産増殖 44 (2), 159-168, 1996

    日本水産増殖学会

被引用文献 (1)*注記

もっと見る

参考文献 (26)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ