Mating Strategies in Giant Cuttlefish

Kaitlin Smith Mating Strategies in Giant Cuttlefish reddish brown apama, also cognise as the giant cuttle, is a species of cuttlefish that argon sexually dimorphic. Male Sepia apama are equip with longer build up than females that are lined with tissue off the ventral margins (M. Norman et. al. 1999). Mating among Sepia apama involves the males utilize elaborate trick displays in the form of stripes pulsation across the dorsal ness and across the webbing on their arms. The females, in turn, ticker to chitchat which males color display she fancies most (M. Norman et. al. 1999). Sepia apama copulation occurs by the male transferring sperm cell packets, called spermatangia, to a pop located infra the beak of the female that are internal sperm-storing organs called receptacles (M. Naud et. al. 2005). During this carry through of copulation, the female, which is polyandrous, displays patterns of dark blotches on their queasy bodies (M. Naud et. al. 2005). Once the trans fer of sperm is complete, the female lays her bollock superstar by one firearm attaching each one apiece to the undersides of rocks and ledges using a jellylike stalk before the bombard are fertilized by creation passed over the sperm pouch located below the mouth. During this faultless process, the male remains tight-fitting by to ensure no other suitors try to touch with the female (M. Norman et. al. 1999). The testis of Sepia apama are larger than average aquatic eggs and are lemon shaped. The eggs consist of having a jelly-like outmost layer, the chorion membrane, perivitelline fluid, and vitelline membrane that encloses the yolk and fertilized egg (E. Cronin and R. Seymour 2000). The female Sepia apama cigaret store sperm for some(prenominal) different males prior to fertilization, which is why males watch the female close to ensure she doesnt mate with some other male. Female decapod crustacean cephalopods, consisting of cuttlefish and squid, have every a s ingle or double sperm receptacle (M. Naud an! d J. Havenhand, 2006). It has been anchor that females can use some(prenominal) of the...If you want to get a encompassing essay, order it on our website: OrderCustomPaper.com

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