The Tarpon (Megalops atlanticus) is a species with economic importance as a food fish and a source of income for artisanal fishers. Research regarding the reproductive biology of this species is scarce or incomplete, especially for this species in northeastern Brazil. Tarpon were caught each month near the Bitupitá district using longline fishing and arrowhead fixed traps, from October 2017 to September 2018. The Tarpon specimens were weighed, measured, and the type of fishing equipment used for the capture was noted. Gonads were obtained and evaluated macroscopically, and fixed and preserved for future microscopic analyses. The present study observed 150 females and 102 males for a total of 252 individuals. The sex ratio was 1:1.5 (M:F) and females showed a dominance in the longer length classes. Both sexes presented negative allometry (b < 3). The gonadosomatic index (GSI), Fulton’s condition (K) values and sexual maturity indicate that the reproductive period occurs between August and November, which is during the dry season. The length at first maturity ($L_{50}$) presented values of 101.7 cm total length (TL) for females, 99.4 cm TL for males and 101 cm TL for both sexes grouped together. The mean fecundity was 7.5 million oocytes and the species present asynchronous oocyte development, multiple spawning periods, and continuous recruitment of oocytes from the reserve stock indicating indeterminate fecundity.

pon（Megalops atlanticus）是一种具有重要经济意义的食用鱼，也是手工渔民的收入来源。关于该物种生殖生物学的研究很少或不完整，尤其是对于巴西东北部的该物种。从2017年10月至2018年9月，每个月都使用延绳钓和箭头固定式诱捕器在Bitupitá区附近捕获塔彭。对塔彭标本进行称重，测量，并记录用于捕获的捕鱼设备的类型。获得性腺并进行宏观评估，并固定并保存以备将来进行显微镜分析。本研究观察了150名女性和102名男性，总共252个人。性别比为1：1.5（M：F），女性在较长的班级中占主导地位。性别均为负异形体（b <3）。性腺体指数（GSI），富尔顿的状况（K）值和性成熟度表明，生殖期发生在8月至11月之间，即干燥季节。第一次到期时的长度（${\mathrm{大号}}_{50}$）的女性总长度（TL）值分别为101.7 cm，男性99.4 cm TL和101 cm TL。平均繁殖力为750万个卵母细胞，该物种呈现异步卵母细胞发育，多个产卵期以及从储备种群中连续募集卵母细胞，表明繁殖力不确定。