Life of Octopus Dofleini :: essays research papers

Life of gray whale DofleiniIntroductionThis is a research report on grey whalees in general, notwithstanding depart focus inon a particular species of manta ray, the sum Pacific Giant or octopus dofleini ,which is a bottom domicile octopus that lives on coasts of the pacific ocean,from California to north Japan. This report will cover the habitat, and flavorstyle of this amazing mollusk, that is so often misunderstood. The octopusis a very intelligent, and resourceful invertebrate whose natural abilitiesshould make this a sanely interesting reading.REPRODUCTION OF O. DOFLEINIThe spawning of the giant pacific may occur at any time of the year,however the mating of the octopus peaks in the overwinter months, with the peak ofegg laying in April and may. Octopuses reproduce sexually, and have both maleand egg-producing(prenominal) octopuses. Reproduction takes place as follows The male octopususes his tentacle to take a mass of spermatophore from within his mantle cavity,he so inserts it into the oviduct, in the mantle cavity of the female. Thisprocess occurs at reasonablenesss from 20-100m and, lasts hours. With female octopusesreceiving spermatophore up to 1m long.Female octopus seem to prefer larger males as join and male octopus maymate with more than one female in their life span, however the male octopus onlylives a few months aft(prenominal) breeding, and the female will die shortly after the orchis hatch.Incubation can take from 150 days to septenary or more months. The femalemay produce any where from 20,000 to 100,000 eggs over a period of several days.During incubation the female octopus will take to cleaning and aerating the eggs.This takes place at a depth of less than 50 metersLIFE SPAN OF O.DOFLEINIAfter hatching, the baby octopus (or larvae) take on the role ofplankton, drifting around the ocean aliment on neuston (dead food) as opposed tohunting live prey. This stage on an average lasts for 30-90 days.Without mating the octopus ma y survive up to cardinal years, and GiantPacific octopus have been found to reach a weight of 600 pounds, and anestimated width of over 31 feet, But the average coat is only 100 pounds and 3m,still weighing in as the largest species of octopus.During their life span, many octopus fall victim to fatal, and non-fatalpredation. Therefore a mettlesome luck of octopus are mutilated or missing arms,this percentage increases in octopus that live in deep water, perhaps this isbecause senior octopus tend to occupy deeper waters and would naturally have morebattle scars. However larger octopus are less wedded to these injuries.