Total and natural mortality of Mugil cephalus and M. curema (Pisces: Mugilidae), in Tamiahua Lagoon, Veracruz. I. Selectivity.

Autores

  • Ana Laura Ibáñez Aguirre Universidad Autónoma Metropolitana-Iztapalapa, Depto. de Hidrobiología. Apdo. Postal 55-535. C.P. 09340, México, D.F.
  • Manuel Gallardo Cabello Instituto de Ciencias del Mar y Limnología, UNAM. Apdo. Postal 70-305, C.P. 04510, México, D.F.

Palavras-chave:

Total mortality, natural mortality, selectivity, Mugil cephalus, Mugil curema

Resumo

Total and natural mortality were determinated. Total mortality )z) was estimated through the catch curves and natural mortality (M) through Taylor method. An study on the selectivity of the most used gill gear was made. The obtained values were the following: Z=0.27, S=0.73, M=0.106 for M. cephalus, and Z=0.85, S=0.15, M=0.160 for Mugil curema. Natural mortality rates for sexes were the following: Mugil cephalus: females=0.114; males=0.113; Mugil curema: females=0.156; males=0.213. Selectivity for M. cephalus was I=323 mm (mesh size gill 35 mm) and I=257 mm for M. curema (mesh size gill 30 mm).

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Ibáñez Aguirre, A. L., & Gallardo Cabello, M. (2016). Total and natural mortality of Mugil cephalus and M. curema (Pisces: Mugilidae), in Tamiahua Lagoon, Veracruz. I. Selectivity. HIDROBIOLÓGICA, 6(1, 2), 9–16. Recuperado de https://hidrobiologica.izt.uam.mx/index.php/revHidro/article/view/590

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