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Histological Observations and Regeneration of Barbels in Juveniles of the Chinese Longsnout Catfish Leiocassis longirostris
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  • Histological Observations and Regeneration of Barbels in Juveniles of the Chinese Longsnout Catfish Leiocassis longirostris
  • Histological Observations and Regeneration of Barbels in Juveniles of the Chinese Longsnout Catfish Leiocassis longirostris
저자명
Park. In-Seok,Kim. Chi-Hong,Choi. Jae Wook
간행물명
Fisheries and aquatic sciences
권/호정보
2012년|15권 4호|pp.299-303 (5 pages)
발행정보
한국수산과학회
파일정보
정기간행물|ENG|
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
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기타언어초록

Barbel structure and regenerated barbel length in the juvenile Chinese longsnout catfish Leiocassis longirostris (G$ddot{u}$nther), were evaluated. The barbles consisted of an epidermis, a dermis, and a central rod. The epidermis harbored taste buds, granular cells and epidermal cells. The taste buds were basophilic and situated along the distal portion of the epidermis. The dermis was composed of loose connective tissue containing blood vessels pigment cells. The innermost central region was cartilage enclosed within layers of muscle layers. After 30 days, the regenerated barbel length measured $0.92{pm}0.404mm$ at $15^{circ}C$ (regenerated growth curve: y = 0.5085x + 4.0678, $r^2$ = 0.9654, where y is regenerated length and x is experimental period in days), $1.88{pm}0.521mm$ at $20^{circ}C$ (y = 0.1806x + 4.808, $r^2$ = 0.9822), and $6.44{pm}0.751mm$ at $25^{circ}C$ (y = 0.0914x + 4.9918, $r^2$ = 0.9944). Fifteen days after amputation, the regenerated length was significantly longer at $25^{circ}C$ than at 15 or $20^{circ}C$ (P < 0.05). The barbels of the Chinese longsnout catfish was the tender and flexible type, and our experimental findings provide evidence of temperature-dependent regeneration. Additional investigation of the behavior and physiology of the Chinese longsnout catfish is needed, particularly histological studies of regenerated barbels and the measurements of the numbers of taste buds per barbel under various environmental conditions.