Optic gland implants and their effects on the gonads of Octopus.

نویسندگان

  • M J Wells
  • J Wells
چکیده

1. Optic glands transplanted from one Octopus vulgaris into another cause enlargement of the gonads and ducts of the recipient. 2. Enlargement occurs whether or not the gland was secreting when implanted and regardless of the sex of the donor or recipient. 3. Glands derived from Eledone moschata or Octopus macropus implanted into O. vulgaris are as effective as glands derived from O. vulgaris. 4. Implants derived from Sepia officinalis or Loligo vulgaris appear to be ineffective.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Does the trophic habitat influence the biochemical quality of the gonad of Octopus vulgaris

Octopus vulgaris is a merobenthic octopus with high growth rates, and an opportunistic predator of a wide range of species which adapts the reproductive cycle to the oceanographic characteristics of their habitats. Trophic habitat and gonad quality of two neighbour populations of the Portuguese coast, subject to different oceanographic regimes, one inhabit a productive system with strong season...

متن کامل

Seasonal Variations of Fat and Fatty Acid Composition in Muscle Tissues of Mediterranean Octopuses

 The effects of seasons on lipid and fatty acid profiles of muscle types (mantle and arm) of Mediterranean octopuses (common octopus-Octopus vulgaris and musky octopus-Eledone moschata) were investigated. The results showed that lipid levels ranged from 0.75% to 1.60% in both muscle types of octopuses which were considered as lean. Lipid levels in mantle tissues of both octopus species w...

متن کامل

Seasonal Variations of Fat and Fatty Acid Composition in Muscle Tissues of Mediterranean Octopuses

 The effects of seasons on lipid and fatty acid profiles of muscle types (mantle and arm) of Mediterranean octopuses (common octopus-Octopus vulgaris and musky octopus-Eledone moschata) were investigated. The results showed that lipid levels ranged from 0.75% to 1.60% in both muscle types of octopuses which were considered as lean. Lipid levels in mantle tissues of both octopus species were hig...

متن کامل

Accumulation of mercury in the tissues of the common octopus Octopus vulgaris (L.) in two localities on the Portuguese coast.

Mercury concentrations were measured in tissues of 12 individuals of Octopus vulgaris, captured by the commercial fishery at two points along the Portuguese coast, Viana do Castelo and Cascais, in spring 2002. Concentrations were determined in six tissues (digestive gland, branchial hearts, gills, mantle, arms, and gonads). Correlations between mercury concentrations in different tissues were e...

متن کامل

Octopus optic nerve responses.

KARITA, K. and TASAKT, K. Octopus Optic Nerve Responses . Tohoku J. exp. Med., 1973, 110 (4), 311-318 The optic nerve response of the octopus (Octopus vulgaris) was recorded from the isolated preparation of the eye and the attached optic nerve. Photically initiated response was found to be most difficult to record and only in a few preparations was it possible to succeed in recording the optic ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • The Journal of experimental biology

دوره 62 3  شماره 

صفحات  -

تاریخ انتشار 1975