Twenty-eight additions to the length-weight and length-length relationships of Indo-Pacific fishes from the Davao Gulf, Philippines

Selected fish were measured on markets along the Davao Gulf, Philippines between 2009 and 2016, augmenting the number of Length-Weight relationships (LWR) published earlier for the same area. LWRs were calculated for 28 fishes including those of 12 firstly reported, rare species. SL-TL and SL-FL relationships were determined for 28 and 25 species (also including 8 and 12 newly reported relationships, respectively). Minimum size at which individuals start developing forked tails are provided for Cheilinus fasciatus (SL = 15.0 cm), Plectorhinchus polytaenia (SL = 27.0 cm), Pseudobalistes flavimarginatus (SL = 18.0 cm) and Thalassoma hardwicke (SL = 11.5 cm). The flatfish Psettodes erumei had a right-left eyed ratio of 0.55.