论文部分内容阅读
1.体长与椎体之间的关系呈正紧密直线相关。其关系式为:L=7.046R+49.590 r=0.938 2.用第一个椎骨的椎体作为观察和测定年轮的材料。年轮在透射光线下界于透明带和不透明带之间。其特征可分为以下三种类型:(1)单带型,(2)双带型,(3)多带型。 3.根据椎体边缘相对生长量的周年测定结果,证实该年轮系一年形成一次,时间为12月份至翌年5、6月份,主要的形成期是4～6月份。 4. 绿鳍马面鲀各龄鱼的平均体长和体重为:Ⅰ龄鱼:119.5毫米,44.5克;Ⅱ龄鱼:159.9毫米,70.9克;Ⅲ龄鱼:194.8毫米,136.9克;Ⅳ龄鱼:215.2毫米,190.8克;Ⅴ龄鱼;229.2毫米,231.3克;Ⅵ龄鱼:245.9毫米,283.5克。 5.体长和体重之间呈指数函数关系。关系式:L=41.324·W~(0.315) 6.从现有的标样观察和分析,绿鳍马面鲀的最高寿命为X龄。年龄组成比较简单,以Ⅲ、Ⅳ龄组占优势,Ⅵ龄以上各组数量极少。
Body length and the relationship between the vertebral body was positively and closely related. The relationship is: L = 7.046R + 49.590 r = 0.938 2. Use the vertebra of the first vertebra as the material for observing and measuring the growth ring. The annual rings are transmissive to light at the lower boundary between the zona and the opaque bands. Its characteristics can be divided into the following three types: (1) single belt type, (2) double belt type, (3) multi-belt type. According to the results of annual measurement of the relative growth of vertebral body edge, it was confirmed that the annual cycle system was formed once a year, from December to May and June next year, with the main formation period from April to June. The average body length and body weight of green fins and noodles at each age were: Ⅰ-age fish: 119.5 mm and 44.5 g; Ⅱ-age fish: 159.9 mm and 70.9 g; Ⅲ-age fish: 194.8 mm and 136.9 g; Fish: 215.2 mm, 190.8 g; Ⅴ age fish; 229.2 mm, 231.3 g; Ⅵ fish: 245.9 mm, 283.5 g. Body length and exponential function between the body weight. Relationship: L = 41.324 · W ~ (0.315) 6. From the existing standard observations and analysis, the maximum life span of the green fins flat surface is X years. Age composition is relatively simple, to Ⅲ, Ⅳ age group dominated, Ⅵ age groups above the number of very few.