Reproductive biology of the white grunt, Haemulon plumierii, in the coastal waters of the northern Yucatán Peninsula

White grunt ( Haemulon plumierii ) has gained relevance as an alternative resource to fisheries off the northern coast of Yucatan Peninsula, however, knowledge its biology in region is scarce. Thus, order explore the reproductive H. , a total 355 specimens were caught with hand line and bait, from September 2015 November 2016 conduct histological analysis gonads. The sample was represented by 233 males and 122 females, differing 1:1 sex ratio (1 female per 2.1 males). reproductive season occurred from February August maximum peak May. 50% maturity size (L50) estimated at 15.15 15.22 cm TL for males respectively. batch fecundity ranged 9,363 42,371 eggs batch, an average 26,558 eggs. Several features observed such spring spawning seasonality, length sexual maturity, asynchronous oocyte development indeterminate fecundity, batch spawning. This kind information can guide proposals further sustainable fishery management measures that may guarantee continuity this economically important species region.