การสืบพันธุ์ของ Cottus asper
Document source: http://fishbase.mnhn.fr/Reproduction/FishReproSummary.php?GenusName=Cottus&ID=4062&SpeciesName=asper&StockCode=4258&fc=277
 
อ้างอิงหลัก Scott, W.B. and E.J. Crossman, 1973
วิธีการ,แบบ dioecism
การปฏิสนธิ external
Mating type polygyny
ความถี่ของการวางไข่
Spawning aggregation อ้างอิง  
จำนวนของตัวที่วางไข่ อ้างอิง  
กลุ่มที่มีการสืบพันธุ์ guarders
nesters
Parental Care paternal
คำอธิบายของวงจรชีวิตและพฤติกรรมการผสมพันธุ์ Prior to breeding, males move downstream and select a nesting site under boulders or flat rocks. Females aggregate some distance upstream and move down singly to the spawning area. Courtship behavior occurs outside the nest until a female is selected. The pair enter the nesting site, courting continues until eggs are deposited and fertilized. The female then leaves the nest and goes back upstream to feed, while the male spawns with other females or fans and guards the eggs. The male does not feed until the eggs have hatched, moving upstream only in the late summer (Ref. 1998, 27547). During the planktonic stage, larvae of the freshwater nonanadromous form in lakes show distinct diurnal vertical migrations, being most abundant at the surface during the darkest hours of the night. They apparently stay deep in the water during the day and on bright moonlight nights (Ref. 28920). Metamorphosis is complete by the end of the planktonic period and the young take up a demersal mode of life. The young coastal form may move upstream during the fall, although the young may remain in the estuary for a full year (Ref. 27547).
ค้นหาแหล่งอ้างอิงเพิ่มเติมด้วยการสืบพันธุ์ Scirus
(เช่น 9948)
( เช่น cephalopods )
Comments & Corrections
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