Length–weight relations of fishes inhabiting a hyperhaline coastal lagoon in Yucatan, Mexico

Length–weight relations of fishes inhabiting a hyperhaline coastal lagoon in Yucatan, Mexico

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Length–weight relations (LWR) were estimated for 45 fish species (27 families) from a tropical hyperhaline coastal lagoon and a protected biosphere reserve located in Yucatan Peninsula.The following species were studied: Elops saurus Linnaeus, 1766; Anchoa mitchilli (Valenciennes, 1848); Harengula jaguana Poey, 1865; Ariopsis felis (Linnaeus, 1766); Synodus foetens (Linnaeus, 1766); Opsanus beta (Goode et Bean, 1880); Mugil trichodon Poey, Picture 1875; Menidia colei Hubbs, 1936; Menidia peninsulae (Goode et Bean, 1879); Atherinomorus stipes (Müller et Troschel, 1848); Strongylura notata (Poey, 1860); Chriodorus atherinoides Goode et Bean, 1882; Hyporhamphus meeki Banford et Collette, 1993; Fundulus grandissimus Hubbs, 1936; Lucania parva (Baird et Girard, 1855); Poecilia velifera (Regan, 1914); Cyprinodon artifrons Hubbs, 1936; Floridichthys polyommus Hubbs, 1936; Jordanella pulchra (Hubbs, 1936); Syngnathus makaxi Herald et Dawson, 1972; Prionotus tribulus Cuvier, 1829; Trachinotus falcatus (Linnaeus, 1758); Lutjanus griseus (Linnaeus, 1758); Diapterus auratus Ranzani, 1842; Diapterus rhombeus (Cuvier, 1829); Eucinostomus argenteus Baird et Girard, 1855; Eucinostomus gula (Quoy et Gaimard, 1824); Eucinostomus harengulus Goode et Bean, 1879; Eugerres plumieri (Cuvier, 1830); Gerres cinereus (Walbaum, 1792); Orthopristis chrysoptera (Linnaeus, 1766); Archosargus rhomboidalis (Linnaeus, 1758); Lagodon rhomboides (Linnaeus, 1766); Bairdiella chrysoura (Lacepède, 1802); Cynoscion nebulosus (Cuvier, 1830); Cynoscion arenarius Ginsburg, 1930; Micropogonias undulatus (Linnaeus, 1766); Menticirrhus littoralis (Holbrook, 1847); Menticirrhus americanus (Linnaeus, 1758); Menticirrhus saxatilis (Bloch et Schneider, 1801); Mayaheros urophthalmus (Günther, 1862); Gobiosoma robustum Ginsburg, 1933; Sphyraena barracuda (Edwards, 1771); Achirus lineatus (Linnaeus, 1758); Sphoeroides testudineus (Linnaeus, 1758).A total of 31 011 specimens were collected using a beach seine and a Hair Styling Tools trawl net from October 2004 through November 2005, and from August 2007 through October 2008.Dominant species were Floridichthys polyommus, Cyprinodon artifrons, Menidia colei, and Sphoeroides testudineus.

Results indicated a negative (19 species) and positive (26 species) allometric growth.The present paper provides the first published LWRs estimations for Syngnathus makaxi and Eucinostomus harengulus, and a new maximum length record for Hyporhamphus meeki (20.9 cm standard length).