Abstract

HERNANDEZ-TRUJILLO, Sergio; ESQUEDA-ESCARCEGA, Gabriela María; FUTEMA-JIMENEZ, Sonia  and  FUNES-RODRIGUEZ, René. Weight-length relationship of Labidocera diandra and Labidocera johnsoni (Calanoida: Pontellidae). Hidrobiológica [online]. 2014, vol.24, n.3, pp.303-306. ISSN 0188-8897.

The length weight relationship of the pontellid copepods Labidocera diandra and L. johnsoni was estimated in a coastal lagoon of the southeastern Gulf of California, Mexico. The equation that describes the relationship for L. diandra is W=9.564e^0.92PL(mm) (r²=0.83, p< 0.05) and for L. johnsoni is W=103.95e^0.06PL(mm) (r²=0.01, p > 0.05); L. diandra had the greatest weight and size variation. The condition factor in both species had a significantly negative trend respect to size, being more pronounced in L. johnsoni. The equations representing the weight-length relationship of pontellid copepod species are indicators of the species biomass and are useful for estimating the rate of secondary production in ecosystems with different levels of anthropogenic intervention.

Keywords : Ensenada de La Paz; Gulf of California; Labidocera; weight-length.

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