Parameters of the Spondylus limbatus GB Sowerby II, 1847, population in the central-West Gulf of California, Mexico

Marcial Trinidad Villalejo Fuerte, Marcelino Ruiz-Domínguez, Gladys Guadalupe Cota Hernández, Felipe Neri Melo-López, Nurenskaya Velez-Arellano, Marcial Arellano-Martínez, Arturo Tripp-Quezada

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Abstract

The main Spondylus limbatus population parameters were estimated based on the analysis of
individual growth and reproductive aspects of specimens collected monthly (n = 30) from January
to December 2009 in the fishing area of Agua Verde, Gulf of California. The size structure
determined from shell measurements was 82–167 mm and the direct reading of shell sections
indicated ages of 1–14 years. The data are adjusted to the von Bertalanffy, Gompertz, logistic,
Richards and Schnute (Type 1) growth models. The von Bertalanffy model provided the best fit to
describe individual growth in this species (SH∞ = 142.7 mm, k = 0.47, t0 = −0.20 years). The
spawning season was determined through gonadal histology, and the size and age at sexual
maturity through a logistic model. Reproductive activity occurred from March to September, with
spawning peaks in July and August. The size and age at sexual maturity were 10.79 mm and
2.7 years, respectively. This information provides the necessary knowledge to implement management measures in the area. We recommend independent studies to establish management
measures for each fishing area.
Translated title of the contributionParámetros de la población de Spondylus limbatus GB Sowerby II, 1847, en el centro-oeste del Golfo de California, México
Original languageEnglish
Article number11
Pages (from-to)1
Number of pages11
JournalInvertebrates Reproduction & Development
Volume67
Issue number1
DOIs
StatePublished - 27 Jan 2023

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