温度、盐度和密度对菲律宾蛤仔稚贝生长和存活的影响OACSTPCD
Effects of Temperature,Salinity and Density on the Growth and Survival in Spats of Clam(Ruditapes philippinarum)
为查明温度、盐度和密度对菲律宾蛤仔(Ruditapes philippinarum)稚贝生长和存活的影响,本研究通过响应面法构建了不同环境条件下蛤仔生长存活模型并进行分析.实验设计了 3因素(温度、盐度、密度)和3水平(-1、0、1),以稚贝壳长为响应值,探究温度、盐度、密度三因素及其相互作用对蛤仔稚贝生长和存活的影响.研究表明,培育73 d后,温度、盐度、密度的二次效应对蛤仔稚贝的壳长生长影响极显著(P＜0.01).随着温度、盐度、密度的升高,蛤仔壳长生长呈先上升后下降趋势,即表现出抛物线形特征,其中盐度对稚贝的壳长生长影响极显著(P＜0.01).然而,三因子间的交互作用对蛤仔壳长生长的影响均不显著(P＞0.05).壳长预测值Y对应自变量温度(T)、盐度(S)和密度(D)的二次多项回归方程:Y=-6.331 05+0.276 5T+0.573S+0.689D-0.005 66T2-0.013 7S2-0.115 9D2.本研究通过二次响应面回归方程构建了不同环境下蛤仔苗种的生长模型,得出稚贝最适生长环境为温度24.32 ℃、盐度21.13、密度2.88×104粒/m2,在此条件下蛤仔稚贝平均壳长可达到最大值(4.07 mm).
To identify the effects of temperature,salinity and density on the growth and survival of Ruditapes philippinarum larvae,an economically important mudflat shellfish in China,a model of clam growth and survival under different environmental conditions was constructed and analyzed with response surface method in this study.Three factors(temperature,salinity and density)and three levels(-1,0 and 1)were designed to investigate the effects of temperature,salinity and density and their interactions on the growth and survival of clam larvae,with the shell length of larvae as the response value.The study showed that after 73 days of incubation,the secondary effects of temperature,salinity and density on the growth of shell length of clam larvae were highly significant(P＜0.05).With the increase of temperature,salinity and density,the shell length growth of clams showed a trend of increasing and then decreasing,it showed parabolic characteristics,of them the effect of salinity on the shell length growth of juvenile clams was highly significant(P＜0.01).However,no interaction among the three factors on the shell length growth of clams was significant(P＞0.05).The quadratic multinomial regression equation for the predicted shell length(Y)corresponding to the independent variables of temperature(T),salinity(S)and density(D)was Y=-6.331 05+0.276 5T+0.573S+0.689D-0.005 66T2-0.013 7S2-0.115 9D2.The growth models of clam fry species under different environments were constructed by the quadratic response surface regression equation.The optimum growth environment for the spats was obtained as temperature(24.32 ℃),salinity(21.13),and density(2.88× 104 ind/m2),and the average shell length of the spats could reach the maximum(4.07 mm)under these conditions.
吴磊;涂康;周丽青;刘志鸿;吴彪;孙秀俊
中国水产科学研究院黄海水产研究所,山东青岛 266071||青岛海洋科学与技术试点国家实验室海洋渔业科学与食物产出过程功能实验室,山东青岛 266237||江苏海洋大学海洋科学与水产学院,江苏连云港 222005莆田市水产研究所,福建莆田 351100中国水产科学研究院黄海水产研究所,山东青岛 266071||青岛海洋科学与技术试点国家实验室海洋渔业科学与食物产出过程功能实验室,山东青岛 266237
水产学
菲律宾蛤仔温度盐度密度生长
Ruditapes philippinarumtemperaturesalinitydensitygrowth
《中国海洋大学学报（自然科学版）》 2024 (001)
58-66 / 9
崂山实验室科技创新项目(LSKJ202203803);国家重点研究发展计划项目(2018YFD0900702);中国水产科学研究院黄海水产研究所基本科研业务费项目(20603022022001);青岛市市南区科技计划项目(2022-2-026-ZH);莆田市科技计划项目(2021NJJ002);中国水产科学研究院基本科研业务费项目(2023TD30)资助 Supported by the Technology Innovation Program of the Laoshan Laboratory(LSKJ202203803);the National Key Research and De-velopment Program of China(2018YFD0900702);the Yellow Sea Fisheries Research Institute Chinses Academy of Fishery Science Fundamental Research Operation Expenses(20603022022001);the Science and Technology Plan Project of Shinan District,Qingdao(2022-2-026-ZH);the Putian Science and Technology Plan Project(2021NJJ002);the Central Public-Interest Scientific Institution Basal Research Fund,Chinese Academy of Fishery Sciences(2023TD30)
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