Mating Strategies in Giant Cuttlefish

Kaitlin Smith Mating Strategies in Giant Cuttlefish mahogany apama, also cognise as the giant cuttlefish, is a species of cuttlefish that argon sexually dimorphic. Male Sepia apama are furnished with longer build up than females that are lined with net off the ventral margins (M. Norman et. al. 1999). Mating among Sepia apama involves the males employ elaborate affectation displays in the form of stripes whim across the dorsal ness and across the webbing on their arms. The females, in turn, study 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 beneath the beak of the female that are internal sperm-storing organs called receptacles (M. Naud et. al. 2005). During this bear upon of copulation, the female, which is polyandrous, displays patterns of dark blotches on their queasy bodies (M. Naud et. al. 2005). Once the transf er of sperm is complete, the female lays her bollock superstar by one time attaching each one apiece to the undersides of rocks and ledges using a thick 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 egg of Sepia apama are larger than average aquatic orchis and are lemon shaped. The eggs consist of having a jelly-like outermost layer, the chorion membrane, perivitelline fluid, and vitelline membran e that encloses the yolk and fertilized egg ! (E. Cronin and R. Seymour 2000). The female Sepia apama screw 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 each a single or double sperm receptacle (M. Naud and J. Havenhand, 2006). It has been nominate that females can use some(prenominal) of the...If you want to get a plenteous essay, order it on our website: OrderCustomPaper.com

If you want to get a full essay, visit our page: write my paper