LENGTH-WEIGHT RELATIONSHIPS OF TWO GIZZARD SHADS CLUPANODON THRISSA AND NEMATALOSA NASUS (CLUPEIDAE) IN THE NHAT LE RIVER OF CENTRAL VIETNAM

Abstract

The length-weight relationships (LWRs) of Clupanodon thrissa and Nematalosa nasus are examined based on 140 specimens (74 C. thrissa and 66 N. nasus) collected from April to September 2018 in the Nhat Le River of central Vietnam. The LWRs of C. thrissa for total length (TL) and standard length (SL) are provided, which were not known earlier. The present study also provided supplementary data on LWRs of N. nasus in the research area. The provided LWRs of unsexed C. thrissa (2.9099 for TL and 2.7117 for SL) suggested an isometric growth pattern.The present study reported LWRs of unsexed N. nasus in central Vietnam (2.7288 for TL and 2.6284 for SL), indicating a negative allometric growth pattern.