Sự tái sinh sản của Rostroraja eglanteria
Document source: http://fishbase.se/Reproduction/FishReproSummary.php?GenusName=Rostroraja&ID=1252&SpeciesName=eglanteria&StockCode=1268&fc=19
 
Thông tin chủ yếu Breder, C.M. and D.E. Rosen, 1966
Mẫu dioecism
Sự bón phân internal (oviduct)
Mating type
Tần số đẻ trứng
Spawning aggregation Tài liệu tham khảo  
Con vật sinh sản từng đợt Tài liệu tham khảo  
Loại cùng tái sinh sản nonguarders
open water/substratum egg scatterers
Parental Care none
Mô tả chu kỳ sống và tập tính ghép đôi Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449). Distinct pairing with embrace. Young may tend to follow large objects, such as their mother (Ref. 205). From the work of Libby and Gilbert (1960) (Ref. 51117) and Luer and Gilbert (1985) (Ref. 38742) male and female clearnose skates mate side by side in an upright position (Ref. 49562). Actual copulation occurs when the male bites the caudal margin of the female's pectoral, bends his tail 75 degrees beneath hers and inserts one clasper, flexed ('splayed') medially 90 degrees, into her oviduct (Ref. 49562). A female displays 'back arching' and 'pectoral fin undulations' as precopulatory behavior to attract males (Ref. 49562).
Tìm các tài liệu tham khảo khác về tái sinh sản Scirus
(thí dụ 9948)
( thí dụ cephalopods )
Comments & Corrections
Trở lại tìm kiếm


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