%0 Journal Article %T Population Structures and Diets of Two Species of <i>Pisodonophis</i> (Ophichthidae) from the Southwest Coast of Taiwan %A Feng-Jiau Lin %A Hsiao-Yun Chang %A Chun-Wen Tsao %A Hung-Du Lin %A Yih-Tsong Ueng %J Natural Resources %P 197-204 %@ 2158-7086 %D 2021 %I Scientific Research Publishing %R 10.4236/nr.2021.126014 %X This study was used to lift nets and trap net fishing at intertidal zone of lagoon and estuarine regions of southern Taiwan. From July 2013 to July 2018, a total 420 specimens of Pisodonophis were analyzed, the average total body length (TL) and average body weight (W) of P. boro eels are 68.4 ¡À 11.9 cm and 140.4 ¡À 86.1 g (N = 194), respectively. Typically, P. cancrivorus eels are smaller (TL = 52.8 ¡À 9.2 cm) and lighter (W = 107.9 ¡À 73.7 g [N = 119]) than P. boro eels. The natural logarithmic linear relationships between the TL and W of P. boro and P. cancrivorus are respectively expressed as ln(W)b = 2.4405 ln(TL) &#8722; 5.4448 (R2 = 0.796, N = 194) and ln(W)c = 3.2168 ln(TL) &#8722; 8.2027, (R2 = 0.934, N= 119). P.