罗源湾鱼类区系研究

On the Fish Fauna of the Luoyuan Bay in Fujian

罗源湾鱼类至少有 240种,隶属于 21目 92科 168属。其中软骨类 5 目12科 14属22种(占9.17％),以鲼目最多(9种)。硬骨鱼类16目80科154属218种(占90.83％),其中以鲈形目最多(104种)。暖水性种类155种(占64.58％)。暖温性种类84种(占35.00％),冷温性种类1种。没有地方种,鱼类区系具有亚热带性质。与台湾海峡北部鱼类区系的关系最为密切;与台湾海峡南部,东海,南海北部中国沿岸鱼类区系关系次之。除了南海北部中国沿岸以外,它们皆属于中国-日本亚区。由于冬季海水表层20℃等温线位于台湾海峡南侧,南海北部中国沿岸鱼类区系应属热带性印度-马来亚区。

There are 21 Orders,92 Families,168 genera and 240 specices of fishes in the Luoyuan Bay of Fujian.The Chondrichthian fishes are represented by 5 orders .12 families, 14 genera and 22 species(9,28% of the total).among which the myliobatiform fishes are the most abundant(9 species),The osteichthian fishes are represented by 16 orders,80 families, 154 genera and 218 species (90.72% of total),among which the perciform fish are predominate in number(104 species).There are not any endemic species in this area. According to the adaptive thermal nature of species.the fishes of Luoyuan Bay may be grouped in three types. (1)The warm-water type.comprising 155 species (64.73% of the total);(2) the warm-temperate, 84 species (34.85% of the total);(3) the cold-temperate,(only one species).The fishes fauna composition of this area is subtropcal in nature.It is ctosely related to that of the northern Taiwan Stcait. and come next to that of the southern Taiwan Strait .the East China Sea and Chinese coastal area of the Southern China Sea. Because the 20 ℃ surface isotherm is located the southern side of the Taiwan Bank in winter.These belong to the Sino-Japanese Subregion except the Chinese coastat area of the Southern China Sea which belongs to the tropical fndo-Malyan Subregion.