Data on the length-weight relationship of 161 species of commercially important coral reef fishes in Tawi-Tawi islands, Southern Philippines.

This article contains the data on the Length-weight relationship (LWR) parameters play a crucial role in fisheries management, particularly in fish stock monitoring methods like fish visual census, where biomass estimation relies on the measurement of individual fish lengths in situ. Localized LWR parameters provide more accurate assessments of local fish stocks due to the influence of environmental conditions, which vary across different locations. In this study, we present the LWR parameters for 161 species belonging to 60 genera and 21 families of commercially important coral reef-associated fishes found in the waters surrounding the Tawi-Tawi islands in Southern Philippines.