A note on the investigation of morphometric differentiation among mantis shrimp (Stomatopods) in South Madura Waters, Indonesia

Abstract

Mantis shrimp is one of the fishery resources with a high species variation and wide distribution area that cause differences in morphometric characteristics and population mixing. This study purposed to identify and compare the morphometric characters of mantis shrimp (Stomatopods) as well species kindship in South Madura waters, Indonesia. The study was conducted from October 2019 until January 2020 with specimen collecting from three locations south of Madura. Three types of dominant mantis shrimps caught were chosen for the investigation of morphometric differentiation. Morphometric characters were observed with the standard method and truss network analysis (TNA). Based on certain morphological characters, those mantis shrimp species were Harpiosquilla harpax, Miyakella sp., and Oratosquillina sp. Kruskal Wallis analysis resulted in a difference of 14 from 15 characters with the standard method, and 47 from 56 characters with truss network analysis. Cluster analysis showed that Miyakella sp. and Oratosquillina sp. have a close relationship compared to Harpiosquilla harpax. Moreover, the dominant mantis shrimp populations in the south of Madura formed two species of kindship groups.