The length-weight relationships (LWRs) of fourteen marine pelagic fish species were determined in the southeastern Arabian Sea. Specimens were collected on weekly basis from two major fishing harbours (Mangalore and Malpe) along the Karnataka coast during 2017–2018. The fish were caught using wide variety of fishing gears such as trawlnets, purse seines, ring seines, gillnets and long lines. The estimated LWRs were highly significant (p < .001, r² > 0.90) for all the species. The allometric coefficient b ranged from 2.7 to 3.4, falling within the expected ranges. The results of analysis of covariance (ANCOVA) revealed no significant difference (p < .005) in the LWRs between the sexes for all the species. The LWRs in most of the species were either positive allometric (b > 3) or negative allometric (b < 3) whereas few species such as Sardinella longiceps (male), Euthynnus affinis and Sphyraena obtusata (male and combined sex) exhibited isometric growth (b = 3). The study provides the basic biological information on the LWRs of fourteen commercially important pelagic fish species which will be useful as baseline information for further biological research in the region.

在阿拉伯海的东南部确定了14种海洋中上层鱼类的长度-重量关系（LWR）。在2017-2018年期间，每周从卡纳塔克邦沿海的两个主要渔港（芒格洛尔和马尔佩）采集标本。使用拖网，围网围网，围网，刺网和长钓等各种各样的渔具来捕捞鱼。 对所有物种而言 ，估计的LWR非常显着（p <.001，r ² > 0.90）。异速测定系数b为2.7至3.4，在预期范围内。协方差分析（ANCOVA）的结果显示无显着差异（p （<.005）在所有物种的性别之间的LWR中。在大多数物种中，LWR是正向异形的（b> 3）或负向异形的（b <3），而极少数物种，例如长沙丁鱼（Sardinella longiceps）（雄性），亲和性藻和Sphyraena obtusata（雄性和杂性）表现出等长的增长（ b = 3）。该研究提供了14种商业上重要的远洋鱼类的LWR的基本生物学信息，这些信息可作为该地区进一步生物学研究的基准信息。