Services on Demand
Journal
Article
Indicators
- Cited by SciELO
Related links
- Similars in SciELO
- uBio
Share
Revista Peruana de Biología
On-line version ISSN 1727-9933
Abstract
ORDINOLA, Elmer; ALEMAN, Solange and VERA, Manuel. Biological characteristics of one Pteria sterna population (Bivalvia: Pteriidae) from Zorritos, Tumbes, Peru. Rev. peru biol. [online]. 2013, vol.20, n.2, pp.181-186. ISSN 1727-9933.
Between April and November 2011 was analyzed a population of Pteria sterna (Gould, 1851) which was attached to a sunken purse seine in Zorritos, Tumbes, Peru (3º40'30.7"S-80°40'20.8"W). Individuals presented from 5 to 94 mm valve height. The average size increased towards the end of the assessment period. The size structure indicated the presence of recruits in most months evaluated, with highest in April and August. There were five age groups. The sex ratio was 1:1. The spawns were continuous, except in June, with highest in November. Valvar height-total weight relationship did not differ by sex. The growth of this species was negative allometric. Other relationships (potential: body weight-total weight, and linear: body weight-total weight and muscle weight-total weight) showed high correlations. Muscle performance accounted for 6.3% of the total weight
Keywords : Pearl shell; sizes; spawning; yield; Zorritos; Peru.