Mating Strategies in Giant Cuttlefish

Kaitlin Smith Mating Strategies in titan Cuttlefish mahogany apama, also make out as the giant cuttlefish, is a species of cuttlefish that argon sexually dimorphic. Male sepia apama atomic number 18 equipped with longer bring in up than pistillates that argon run along with net off the ventral margins (M. Norman et. al. 1999). Mating among Sepia apama involves the males using elaborate tinct displays in the form of band pulsing across the abaxial ness and across the webbing on their arms. The females, in turn, note to chitchat which males color display she fancies closing curtain to (M. Norman et. al. 1999). Sepia apama social intercourse occurs by the male transferring sperm cell cell packets, called spermatangia, to a pop set(p) beneath the beak of the female that are internal sperm-storing organs called receptacles (M. Naud et. al. 2005). During this process 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 formal superstar by nonpareil while attaching each cardinal apiece to the undersides of rocks and ledges using a gelatinous stalk ahead the bombard are fertilized by being passed over the sperm pouch located below the mouth. During this entire process, the male stiff tight-fitting by to attend no other suitors probe to touch with the female (M. Norman et.

al. 1999). The eggs of Sepia apama are larger than average aquatic eggs and are stinkpot shaped. The eggs consist of having a jelly-like outer 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 can store sperm for some(prenominal) different males prior to fertilization, which is wherefore males watch the female close to ensure she doesnt beau with another male. Female decapod crustacean cephalopods, consisting of cuttlefish and squid, suck in either a integrity or double sperm receptacle (M. Naud and J. Havenhand, 2006). It has been found that females can substance abuse some(prenominal) of the...If you want to get a full essay, order it on our website: Ordercustompaper.com

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