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Growth of cultured Octopus mimus (Cephalopoda, Octopodidae)

AuthorsCortez, Tito; González, Ángel F. ; Guerra, Ángel
Issue Date1999
CitationFisheries Research 40(1): 81-89 (1999)
AbstractLaboratory rearing of 19 Octopus mimus from 40 to 589 g at 20.1±1.8°C (September to December 1991) provided information on the growth pattern and variation in instantaneous relative growth rate (G) of this Chilean littoral octopus. The three smallest specimens (ranging from 40 to 49.8 g) attained an average weight of 558 g in 70 days. Growth of this species had two phases. Growth was exponential during the first 40 days of culture with an average G of 5.33%. It slowed and became logarithmic when the animals attained weights ranging from 326.6 to 439 g. Instantaneous relative growth rate decreased from 2.25% to 0.99% during the logarithmic phase. A similar pattern was found for the 16 larger specimens (61.4–406.4 g initial weight). The change in growth pattern observed between the exponential and logarithmic phases occurred at body weights ranging from 326.6 to 454.2 g. No differences in growth were found between sexes in O. mimus. The growth pattern of this species is discussed and compared to other small-egged octopus species raised in captivity.
Description9 páginas, 5 figuras, 2 tablas
Publisher version (URL)http://dx.doi.org/10.1016/S0165-7836(98)00203-3
Appears in Collections:(IIM) Artículos
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