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Investigaciones marinas

versión On-line ISSN 0717-7178

Resumen

MUJICA R, Armando; CARVAJAL U, Cecilia  y  MIRANDA E, Osvaldo. Experimental culture of Tigriopus sp. (Copepoda: Harpacticoidea). Investig. mar. [online]. 1995, vol.23, pp.75-82. ISSN 0717-7178.  http://dx.doi.org/10.4067/S0717-71781995002300005.

Tigriopus sp. is a copepod inhabiting intertidal pools in the IV Region (Chile), with bentho-pelagic behaviour and very resistant to changes in temperature, salinity and oxygen contents. These characteristics lead to the interest in studying the biological feasability of cultivation of this species to use it as nonnal food for larval fish and crustacean of commercial interest. This study gives information about the biology of this species, mainly related with growth, development, feeding, fecundity and some limiting enviromental factors (temperature and salinity). According to this, the best population growth was obtained with a combination of 21oC temperature and 26%o salinity, feeded with a mixture of Nannochloris sp. (microalgae) and Saccharomyces sp. (yeast). Concemig fecundity it was established that females carry on 24 eggs, no matter the size or brood. In the other hand it was possible to observe that there is no mortality at hatching time, so they produce as many nauplii as carrying eggs. The time for eggs appearance from coupling was directly related to temperature, as well as the speed of development of different stages appearing copepodite 1, 6 to 7 days after hatching and obtaining adults aproximately, 17 days after hatching

Palabras clave : culture; experimental; copepod.

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