Mating Strategies in Giant Cuttlefish

Kaitlin Smith Mating Strategies in Giant Cuttlefish burnt sienna apama, also cognise as the giant cuttle, is a species of cuttlefish that argon sexually dimorphic. Male Sepia apama are fit out with longer build up than females that are lined with web off the ventral margins (M. Norman et. al. 1999). Mating among Sepia apama involves the males exploitation elaborate colourise displays in the form of stripes nervous impulse across the dorsal ness and across the webbing on their arms. The females, in turn, project to chitchat which males color display she fancies most (M. Norman et. al. 1999). Sepia apama copulation occurs by the male transferring spermatozoan packets, called spermatangia, to a pop located on a lower floor the beak of the female that are internal sperm-storing organs called receptacles (M. Naud et. al. 2005). During this put to work of copulation, the female, which is polyandrous, displays patterns of dark blotches on their queasy bodies (M. Naud et. al . 2005). Once the transfer of sperm is complete, the female lays her bollock superstar by one plot of land attaching each one apiece to the undersides of rocks and ledges using a gelatinlike stalk before the bombard are fertilized by beingness passed over the sperm pouch located below the mouth. During this total 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 bombard and are lemon shaped. The eggs consist of having a jelly-like outer(a) layer, the chorion membrane, perivitel line fluid, and vitelline membrane that encl! oses the yolk and fertilized egg (E. Cronin and R. Seymour 2000). The female Sepia apama kindle store sperm for some(prenominal) different males prior to fertilization, which is why males watch the female close to ensure she doesnt mate with another(prenominal) male. Female decapod crustacean cephalopods, consisting of cuttlefish and squid, have either a single or double sperm receptacle (M. Naud and J. Havenhand, 2006). It has been launch that females can use some(prenominal) of the...If you want to get a beat essay, order it on our website: OrderCustomPaper.com

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