Length-weight relationships (W = aL^b) were estimated for 5 fish species, the pearl stingray Fontitrygon margaritella (Compagno & Roberts, 1984), the West African spadefish Chaetodipterus lippei (Steindachner, 1895), the East Atlantic African spadefish Ephippus goreensis (Cuvier, 1831), the law croaker Pseudotolithus senegallus (Cuvier, 1830) and the Guinean sole Dagetichthys cadenati (Chabanaud, 1948). Fishes were collected during several scientific fishing surveys using purse seine (length 250 m, height 20 m, 14 mm mesh size) and beach seine (180 m length, 9 m height and 25 mm mesh net) conducted from April 1990 to October 2012 in the Sine Saloum estuary, Senegal. They were weighed to the nearest g and measured to the nearest mm (disc width for Fontitrygon margaritella and total length for the 4 other species). The values of parameter b in the LWR equations varied from 3.048 (Chaetodipterus lippei) to 3.274 (Dagetichthys cadenati) and the coefficient of determination (r²) varied between 0.969 (Fontitrygon margaritella) and 0.998 (Chaetodipterus lippei). In addition, new maximum lengths are proposed for Fontitrygon margaritella, Chaetodipterus lippei and Dagetichthys cadenati.

中文翻译：

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西非塞内加尔 Sine Saloum 河口 5 种鱼类的长度-重量关系

估计了 5 种鱼类的长度-重量关系 (W = aL ^b )，珍珠黄貂鱼Fontitrygon margaritella (Compagno & Roberts, 1984)、西非黑鲱鱼Chaetodipterus lippei (Steindachner, 1895)、东大西洋黑鲟鱼Ephippus goreensis ( Cuvier, 1831)、法罗鱼Pseudotolithus senegallus (Cuvier, 1830) 和几内亚鲇Dagetichthys cadenati（沙巴诺，1948 年）。在 1990 年 4 月至 2012 年 10 月期间使用围网（长 250 m、高 20 m、14 mm 网孔）和海滩围网（180 m 长、9 m 高和 25 mm 网眼）进行的几次科学捕鱼调查期间收集了鱼类。塞内加尔的 Sine Saloum 河口。它们被称重到最接近的 g 并测量到最接近的 mm（Fontitrygon margaritella 的圆盘宽度和其他 4 个物种的总长度）。LWR 方程中参数 b 的值从 3.048 ( Chaetodipterus lippei ) 到 3.274 ( Dagetichthys cadenati ) 和决定系数 (r²) 在 0.969 ( Fontitrygon margaritella ) 和 0.998 ( Chaetodipterus lippei ) 之间变化. 此外，为Fontitrygon margaritella、Chaetodipterus lippei和Dagetichthys cadenati提出了新的最大长度。