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1997年 8月对台湾海峡南部 4个取样站进行了海洋线虫调查 ,获得了海洋线虫 85种 ,隶属于 3目 2 5科 75属。密度较高的种有变异矛咽线虫 (Dory laimopsisvariabilis)、萨巴线虫 (Sabtieriasp .)、(Vasostomasp .1 )、(Vasostomasp .2 )和 (Xyalasp .)等 ,其平均密度分别为 1 .1 4、1 .1 2、0 .6 1、0 .87和 0 .34× 1 0 4个 /m2 ,分别占海洋线虫总平均密度的 1 1 .7%、1 1 .5 %、6 .2 %、9.2 %和 3.5 %。与其他海域相比 ,台湾海峡南部海洋线虫优势种的密度低 ,但与大型底栖动物或多毛类相比 ,海洋线虫种类多样性指数较高 ,均在 4.0以上。台湾海峡南部海洋线虫的取食类型以选择性和非选择性食沉积物者类型占多数 ,但刮食性种类也不少 ,这与台湾海峡南部沉积物类型密切相关。台湾海峡南部既有细的陆源沉积物流入 ,又有上升流、黑潮暖流等的作用而形成的较粗沉积物 ,因而构成台湾海峡南部沉积物的复杂性。
In August 1997, marine nematodes were surveyed at four sampling stations in the southern Taiwan Strait, and 85 species of marine nematodes were obtained, belonging to 3 orders, 25 families and 75 genera. Dory laimopsisvariabilis, Sabtieriasp. (Vasostomasp. 1), (Vasostomasp. 2) and (Xyalasp.) With higher density had the average density of 1.14 , 1 .1 2,0 .6 1,0 .87 and 0 .34 × 10 4 个 / m2, respectively accounting for 11.7%, 11.5%, 6.2% of the total average density of marine nematodes , 9.2% and 3.5% respectively. Compared with other sea areas, the dominant species of marine nematodes in the southern Taiwan Strait were lower in density, but the species diversity index of marine nematodes was higher than that of macrobenthos or polychaetes, all above 4.0. The species of marine nematodes feeding in the southern Taiwan Strait were mostly of selective and non-selective food-sediment types, but there were also many scraping species, which are closely related to the sediment types in the southern Taiwan Strait. The complexity of the sediments in the southern Taiwan Strait is caused by the inflow of fine terrigenous sediments in the southern Taiwan Strait and the coarser sediments formed by the upwelling and Kuroshio current.