耐盐性及其对茉莉花椒发育的影响(Regan 1914)

IF 1.3 Q3 FISHERIES

Journal of Applied Aquaculture Pub Date : 2021-10-06 DOI:10.1080/10454438.2021.1970076

F. Cipriano, R. K. Luz, João Paulo Lorenzini, C. L. Nakayama, L. Neves, Lucas Pedro Gonçalves-Júnior, Kauana Santos de Lima, Franklin Fernando Batista da Costa, K. C. Miranda-Filho

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引用次数: 1

摘要

Velifera molly（Poecilia Velifera）具有与光合性相关的生态生理学意义。为了评估其在不同盐度下的耐受性和性能，以及在不同地点饲养的能力，研究了中位致死盐度（LS50）和生长性能。在实验1中，120只幼鱼通过直接转移到0、24、48、60、72和78psu的盐度中96小时进行测试。在实验2中，160只幼鱼逐渐适应0、12、24和36psu的盐水。实验使用再循环水产养殖系统（RAS）进行75天。LS50-96小时估计为71.1 psu，安全盐度为7.1 psu。最终体重、增重和采食量与盐度呈反比，反映了亚致死效应。表观饲料转化率与盐度直接相关，在淡水条件下表现较好。实验2中没有死亡，使物种能够在分析的盐度中长期维持。

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Tolerance to salinity and its effect on development of velifera molly Poecilia velifera (Regan 1914)

ABSTRACT Velifera molly (Poecilia velifera) has an ecophysiological interest related to euryhalinity. To evaluate its tolerance and performance in different salinities, and the ability to be reared at diverse locations, Median Lethal Salinity (LS50) and growth performance were investigated. In experiment 1, 120 juveniles were tested through direct transfer to salinities 0, 24, 48, 60, 72, and 78 psu for 96 h. In experiment 2, 160 juveniles were gradually acclimatized to salinities 0, 12, 24, and 36 psu. The experiment was conducted using recirculation aquaculture systems (RAS) for 75 d. LS50-96 h was estimated at 71.1 psu and safe salinity at 7.1 psu. The final weight, weight gain, and feed intake had an inverse relationship to salinity, reflecting the sublethal effects. The apparent feed conversion rate was directly related to salinity, presented a better performance in freshwater conditions. There was no mortality in experiment 2, allowing the species to be maintained for long periods in the analyzed salinities.

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来源期刊

Journal of Applied Aquaculture Environmental Science-Ecology

CiteScore

3.20

自引率

0.00%

发文量

期刊介绍： The Journal of Applied Aquaculture is a platform for the sharing of practical information needed by researchers to meet the needs of investors, farm managers, extension agents and policy makers working to adapt aquaculture theory to achieve economic and food security objectives in the real world. The journal emphasizes multi-disciplinary research and case studies that propose financially and logistically viable solutions to observable problems.