Reproduction of Mnemiopsis leidyi
Document Source: http://www.sealifebase.ca/Reproduction/FishReproSummary.php?ID=60737&GenusName=Mnemiopsis&SpeciesName=leidyi&fc=1595&StockCode=4133
 
Main Ref. Purcell, J.E., T.A. Shiganova, M.B. Decker and E.D. Houde, 2001
Mode dioecism
Fertilization
Spawning Frequency
Batch Spawner No
Reproductive Guild
Description of life cycle and mating behavior A simultaneous hermaphrodite with direct development. Sexual reproduction begins at 3 cm length for U.S. waters species and 1 cm oral-aboral length for Black Sea species. Larvae is spherical (cydippid) and hatch in 20 to 24 hours. Develops from tentaculate to lobate feeding mechanism as it matures. Egg production is sensitive to ctenophore size, food availability and temperature. In Chesapeake Bay, USA, egg production occurred at temperatures 11.8 to 29 °C and salinities 5.6 to 29.8 parts per mille. Weight-specific egg production was greater in summer due to higher temperature, salinity and prey density than in spring. Spawning in this area peaks between 2:00 and 4:00 h. In the Black Sea, spawning begins at midnight to 2:00 h. No spawning in spring at 8 to 16 °C, intensive spawning in late summer to autumn at temperature 23 °C.
Search for more references on reproduction Scirus
(e.g. 9948)
(e.g. cnidaria)
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