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作 者:王春琳[1] 郑春静 蒋霞敏[1] 赵青松[1] 王象设[1]
机构地区:[1]宁波大学海洋与水产系,浙江宁波315211 [2]宁波市水产研究所,浙江宁波315010
出 处:《中国水产科学》2000年第3期67-70,共4页Journal of Fishery Sciences of China
基 金:浙江省科委资助项目!(981102042);宁波市科委攻关项目资助!(9800003)
摘 要:通过黑斑口虾蛄人工育苗试验,初步研究其生态习性、繁殖生物学及其幼体发育的特性。认为水温。环境稳定性及光周期是影响其抱卵孵化成功与否的主要因素,水温、光照、底质或人工洞穴、饵料是影响幼体变态率及成活率高低的关键因子。黑斑口虾蛄的伪蚤状幼体生长过程可分为3个阶段:印黄营养阶段、浮游阶段及底栖阶段。仔虾蛄比底栖阶段的伪蚤状幼体对低盐度的适应能力强,前者海水相对体积质量耐受低限为 1.005,后者为 1.010(28~30℃)。Some femal parent Oratosquilla kempi were cultured in 3 ponds under different water temperature and salinity, individual body length ranging from 11. 3 to 16. 7 cm. The observations show that the main factors influencing egg-holding and hatching are water temperature, environmental stability and light circle that the water temperature for mating is 15- 20℃ and the suitable water temperature for hatching is 25- 28℃and it takes 7- 15 d for the fertilized eggs to hatch. The metamorphosis rate and survival rate of the larvae are related with water temperature, light, food and bottom condition or artificial holes in the pond. The growing process of larval O. kempi includes 3 stages, which are yolk-nutrition stage, plano-larva stage and ground-larva stage. The infant squilla can adapt to a lower limit salinity of sea water (specific gravity 1. 005) than the larva at third stage (specific gravity 1. 010), water temperature 28- 30℃
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