Length-weight relationships and growth parameters of two endemic fish species (Floridichthys polyommusHubbs, 1936 andFundulus persimilisMiller, 1955) from the Yucatan Peninsula, Mexico

Abstract

Summary This study reports length‐weight relationships and growth parameters for Floridichthys polyommus Hubbs, 1936 and Fundulus persimilis Miller, 1955 from La Carbonera, a karstic tropical coastal lagoon on the northwestern coast of the Yucatan Peninsula, Mexico. Specimens were collected between April 2009 and March 2010. The resulting length‐weight relationship for F. polyommus was: W = 0.0180 Lt3.37 and W = 0.0142 Lt3.35 for F. persimilis. This study presents the first estimation for both species of the von Bertalanffy growth model parameters, the growth performance index, the L50, and is the first report of the length‐weight relationship for F. persimilis.

Reproductive traits of the “ocellated killifish” Floridichthys polyommus Hubbs, 1936 (Pisces: Cyprinodontidae) inhabiting estuary of the Champotón River (Campeche, Mexico)

“…The maximum SL recorded for F. polyommus in this study was 80 mm. This figure differs from the maximum SL reported elsewhere for this species: 195 mm SL in Celestun Lagoon (Vega‐Cendejas, de Santillana, & Arceo, ); 91 mm SL in Ría Lagartos, Yucatán (Peralta‐Meixueiro & Vega‐Cendejas, ); and 103 mm SL in La Carbonera, Yucatán (Badillo‐Alemán, Bonilla‐Gómez, Tzeek‐T, Gallardo‐Torres, & Chiappa‐Carrara, ). The differences in SL between Champotón River and Celestun Lagoon may be due to that Celestun is a meso‐eutrophic coastal lagoon that is highly productive throughout the year, with a substantial contribution to productivity by macroalgae and seagrass (Herrera‐Silveira, Medina‐Gomez, & Colli, ).…”

“…() in Celestun Lagoon ( b = 3.31) and Badillo‐Alemán et al. () in La Carbonera, Yucatán ( b = 3.55 males; 3.38 females). The b value detected in our study is similar to the one reported for the Cyprinodontid genus Aphanius (Yoğurtçuoğlu & Ekmekci, ).…”