广东海洋大学学报2017，Vol.37Issue(3)：110-116,7.DOI:10.3969/j.issn.1673-9159.2017.03.017
印尼大珠母贝稚贝对温度、盐度的耐受性
Tolerance of Indonesia Pinctada maxima Juveniles on Temperature andSalinity
摘要
Abstract
In order to provide a reference for the Pinctada maxima juvenile in the early breeding on South China Sea, study about tolerance of indonesia P. maxima juveniles (average shell length 6.86 ± 0.32 mm,average shell height 4.71 ± 0.27 mm) in seven low-temperature (12 – 18 ℃) and seven high-temperature (32 – 38 ℃) group with a gradient of 1℃ and twelve salinity (12 – 45) group with a gradient of 3 was carried out by ecological methods in the laboratory controlled temperature and salinity. The results showed that survival rate and growth of indonesia P. maxima juveniles were different in different temperature and salinities. As far as temperature was concerned, larvae all died at the low temperature zone of 12, 13 and 14 centigrade with 6,9 and12 d, respectively; Survival rates of juveniles at 15, 16, 17, 18 centigrade and normal water temperature followed by 41.11 %, 78.91 %, 91.10 %, 94.43 % and 96.67 %; Cold lethal temperature was 15.12 centigrade. Low sensitive starting temperature was 16 centigrade. 36, 37 and 38 centigrade at the high-temperature zone was the lethal temperature. The Juveniles died respectively within 8,3 and 2 d. The survival rates of juveniles at normal water temperature and 15, 16, 17, 18 centigrade followed by 96.67%, 93.32%, 88.91%, 73.40% and 14.31%;Heated lethal temperature was 34.35 centigrade and high sensitive starting temperature was 34 centigrade; The survival rate decreased more rapidly in the low temperature area, and the larvae were more sensitive to low temperature. In terms of salinity, when the salinity was 12, juveniles all died in 5 d and when the salinity was 42 and 45, juveniles died respectively in 18 d and 4 d, Other salinity groups kept partial survival. The suitable and the optimum salinity for survival were 16.83 – 39.5 and 24 – 33 and the suitable and the optimum salinity for the growth of juvenile were 13.1 – 37.8 and 27. The sensitive starting points of low and high temperature were 21 and 36, respectively.关键词
大珠母贝/稚贝/温度/盐度/耐受性Key words
Pinctadamaxima/juveniles/temperature/salinity/tolerance分类
农业科技引用本文复制引用
谭杰,白成,李燕,刘付少梅,谢晓红,吕晓露,唐啸尘,刘志刚..印尼大珠母贝稚贝对温度、盐度的耐受性[J].广东海洋大学学报,2017,37(3):110-116,7.基金项目
农业部 948 项目(2010-Z33) （2010-Z33）
广东省海洋渔业科技推广专项(A201008A01,A201201A06,A201208A07) （A201008A01,A201201A06,A201208A07）
