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根据1997年12月至1999年6月利用“北斗”号调查船的SimradEK500回声探测-积分系统在南海北部海域获取的渔业资源调查资料,运用渔业资源声学评估方法对该海域的带鱼科(Trichiuridae)鱼类、蓝圆(Decapterusmaruadsi)、竹鱼(Trachurusjaponicus)、金线鱼科(Nemipterus)鱼类以及大眼鲷科(Priacanthidae)鱼类等5类23种经济鱼类进行了评估与分析。结果表明,在南海北部海域带鱼科、蓝圆、竹鱼、金线鱼科和大眼鲷科的资源量分别为50.4×104t、16.3×104t、10.4×104t、9.8×104t和9.2×104t,其中带鱼科的资源量密度以冬季和粤西海域最高,蓝圆和竹鱼的资源量密度都以秋季和粤东海域最高,但竹鱼的资源量密度秋季明显高于其他季节。金线鱼科秋季在112°30′～116°E珠江口近海海域自西南到东北出现高度密集分布带,大眼鲷科在南海北部海域的分布较广泛,没有出现明显的高度密集区。
Based on the survey data of the fishery resources acquired by the Simrad EK 500 echo sounding-integrating system of the Beidou survey ship from December 1997 to June 1999 in the northern South China Sea, the Trichiuridae in the sea area was evaluated using the acoustic assessment method of fishery resources. Decapterus maruadsi, Trachurus japonicus, Nemipterus fish and Priacanthidae fish were evaluated and analyzed. The results showed that the resources of the families Zygophyllum, Lantana, Penicillium, Actinid, and Gideliaceae in the northern South China Sea were 50.4 × 104t, 16.3 × 104t, 10.4 × 104t, 9.8 × 104t and 9.2 × 104t. The density of resources of the families of Ostracidae is the highest in winter and the western Guangdong, and the resource density of the blue and blue mullets are the highest in autumn and eastern Guangdong, but the resource density of the mullet is much higher in autumn season. In autumn, the golden thread family is highly distributed in the coastal area of the Pearl River estuary at 112 ° 30’-116 ° E. From the southwest to the northeast, the family Bigeyeidae distributes widely in the northern South China Sea. There is no obvious highly dense area.