| 池塘养殖三疣梭子蟹的生长规律 |
| |
| 引用本文： | 陆俊锴,张伟仁,简杰亮,张可馨,陈清伟,李荣华,王春琳,母昌考.池塘养殖三疣梭子蟹的生长规律[J].水产学报,2023,47(3):039612-039612. |
| |
| 作者姓名： | 陆俊锴 张伟仁 简杰亮 张可馨 陈清伟 李荣华 王春琳 母昌考 |
| |
| 作者单位： | 宁波大学海洋学院,应用海洋生物技术教育部重点实验室,浙江 宁波 315211;宁波大学,浙江海洋高效健康养殖协同创新中心,浙江 宁波 315211 |
| |
| 基金项目： | 国家重点研发计划 (2018YFD0900303);国家现代农业产业技术体系专项 (CARS-48);宁波大学王宽诚幸福基金 |
| |
| 摘 要： | 为探讨池塘养殖三疣梭子蟹的生长规律和雌雄差异,本研究对1～6月龄池塘养殖三疣梭子蟹各生长指标进行了比较分析,并采用Logistic模型分别拟合三疣梭子蟹的体重(BW)、体长(BL)、体高(BH)、全甲宽(FCW)、甲宽(CW)、大螯长节长(MLC)、大螯不动指长(FFLC)、第一步足长节长(MLFP)等8个形态性状的生长特征。结果显示,三疣梭子蟹雌性和雄性的生长存在差异,早期雄性生长较快,后期雌性生长较快,而雌雄混合分析介于二者之间。三疣梭子蟹各生长性状的Logistic模型拟合结果显示,除雌性MLC和MLFP以及雌雄混合分析的MLFP之外,其余性状R2均达到0.990以上;雌性和雄性体质量的极限生长值分别为290.27和195.91g,快速生长区间分别为2.74～5.10月龄和2.33～4.14月龄,拐点分别为3.92和3.24月龄。研究表明,三疣梭子蟹的生长过程均符合“慢-快-慢”的特征,雄性比雌性更早进入快速生长期,但是快速生长期的持续时间不及雌性。本研究对三疣梭子蟹不同生长指标的规律特征,以及各指标在混合养殖条件下雌性和雄性的优势阶段进行了研究,为实现三疣...
|
| 关 键 词： | 三疣梭子蟹 生长差异 Logistic模型 单性养殖 |
| 收稿时间： | 2021/8/10 0:00:00 |
| 修稿时间： | 2021/11/13 0:00:00 |
Growth characteristics of Portunus trituberculatus cultured in ponds |
| |
| LU Junkai,ZHANG Weiren,JIAN Jieliang,ZHANG Kexin,CHEN Qingwei,LI Ronghu,WANG Chunlin,MU Changkao.Growth characteristics of Portunus trituberculatus cultured in ponds[J].Journal of Fisheries of China,2023,47(3):039612-039612. |
| |
| Authors: | LU Junkai ZHANG Weiren JIAN Jieliang ZHANG Kexin CHEN Qingwei LI Ronghu WANG Chunlin MU Changkao |
| |
| Institution: | Key Laboratory of Applied Marine Biotechnology, Ministry of Education, School of Marine Science, Ningbo University, Ningbo 315211, China;Collaborative Innovation Center for Zhejiang Marine High-efficiency and Healthy Aquaculture, Ningbo University, Ningbo 315211, China |
| |
| Abstract: | In order to explore the growth characteristics and sexual differences of Portunus trituberculatus cultured in ponds, this study investigated the growth parameters of pond cultured P. trituberculatus at 1 to 6 months of age, and Logistic model was used to fit eight morphometric traits of P. trituberculatus, including body weight (BW), body length (BL), body height (BH), full carapace width (FCW), carapace width (CW), meropodit length of the claw (MLC), fixed finger length of claw (FFLC) and meropodit length of the first peraeopod (MLFP). The results showed that the growth was different between male and female of P. trituberculatus. The male grew faster at the early stage, while the female grew faster at the late stage of culture, and the mixed sex analysis lied in between. The R2 values of all models of the morphometric traits were above 0.990 except MLC and MLFP in female and MLFP in mixed sex. The carrying capacity of BW of female and male were 290.27 g and 195.91 g, respectively, the fast growth interval of female and male were 2.74-5.10 months of age and 2.33-4.14 months of age, respectively, and the inflection points of female and male were 3.92 months of age and 3.24 months of age, respectively. In summary, the growth process of P. trituberculatus conformed to the "slow-fast-slow" pattern. Males entered the fast growth interval earlier than females, but had less duration of fast growth interval. This study provides the characteristics of different growth parameters of P. trituberculatus and the dominant stages for male and female of each parameter under the conditions of mixed sex culture, so as to provide reference data for the fine and efficient culture of this species. |
| |
| Keywords: | Portunus trituberculatus growth difference logistic model monosex culture |
|
| 点击此处可从《水产学报》浏览原始摘要信息 |
| 点击此处可从《水产学报》下载免费的PDF全文 |
|
