Biología y ecologia de tres especies de molluscos gasterópodos intermareales: Risso parva, Barleeia unifasciata y Bittium reticulatum. 1. Estructura y dinámica de las poblaciones = Biology and ecology of three intertidal gastropods: Rissoa parva, Barleeia unifasciata and Bittium reticulatum. 1. Population structure and dynamics
Borja, A. (1986). Biología y ecologia de tres especies de molluscos gasterópodos intermareales: Risso parva, Barleeia unifasciata y Bittium reticulatum. 1. Estructura y dinámica de las poblaciones = Biology and ecology of three intertidal gastropods: Rissoa parva, Barleeia unifasciata and Bittium reticulatum. 1. Population structure and dynamics. Cah. Biol. Mar. 27(4): 491-507
In: Cahiers de Biologie Marine. Station Biologique de Roscoff: Paris. ISSN 0007-9723; e-ISSN 2262-3094, more
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| Abstract |
The structure of six populations of Rissoa parva, Barleeia unifasciata and Bittium reticulatum at two localities of Basque Coast (N. Spain), inhabiting sediment and Halopteris scoparia algae, has been established from fortnightly abundance data.R. parva shows 4 cohorts, from Mar. to Aug., with a settlement length of 0.6-0.7 mm. This species lives 3 months (Mar.-Apr. cohort), and 11 months the others B. unifasciata shows 5 cohorts from Apr. to Dec., which settle at 0.4-0.5 mm. It lives 8.11 months. |
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