Ionic adjustments do not alter plankton composition in low salinity Penaeus vannamei intensive nursery with synbiotic system

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2023-03-10 DOI:10.1080/02757540.2023.2186405

Otávio Augusto Lacerda Ferreira Pimentel, N. H. They, Rildo José Vasconcelos de Andrade, Valdemir Queiroz de Oliveira, A. Amado, A. Gálvez, L. O. Brito

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引用次数: 1

Abstract

ABSTRACT The aim of this study was to test the effect of different ionic adjustments in low salinity water on the composition and temporal variation of plankton from intensive shrimp nurseries with a synbiotic system. For this, a Penaeus vannamei nursery (35 days) was carried out with three treatments: T1 – diluted seawater (control; salinity ∼2.5 g L−1), T2 – salinity ∼2.5 g L−1 with K+ adjustment to approximate the seawater equivalent concentration, and T3 – salinity ∼2.5 g L−1 with Ca:Mg:K ratio adjusted to 1:3:1. Rice bran processed by probiotic microorganisms was used as an organic carbon source. Phytoplankton and zooplankton were sampled weekly and analysed using standard methods. The temporal variation of phytoplankton and zooplankton composition were more pronounced than differences among treatments indicating that the ionic adjustment had little effect on these communities. During the experimental time, the dominant phyla in phytoplankton were Ochrophyta, Cyanophyta and Chlorophyta, whereas zooplankton’s dominant phyla were Ciliophora, Amoebozoa, and Cercozoa. Cyanophyta’s relative abundance was lower than traditional biofloc systems, suggesting a higher control of these microorganisms in synbiotic systems. Ionic adjustments have then a low potential to affect plankton, likely because limitation by these ions was not achieved under the ionic manipulations tested.

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离子调节不会改变具有合生元系统的低盐度南美白对虾强化苗圃中浮游生物的组成

摘要本研究旨在研究低盐度水体中不同离子调节对集约化共生对虾苗圃浮游生物组成及时间变化的影响。为此，在凡纳滨对虾苗期(35 d)进行了三种处理:T1稀释海水(对照;盐度~ 2.5 g L−1)，T2 -盐度~ 2.5 g L−1,K+调整到接近海水当量浓度，T3 -盐度~ 2.5 g L−1,Ca:Mg:K比调整到1:3:1。以经益生菌处理的米糠为有机碳源。浮游植物和浮游动物每周取样，并使用标准方法进行分析。浮游植物和浮游动物组成的时间变化比不同处理间的差异更明显，表明离子调节对这些群落的影响不大。实验期间，浮游植物的优势门为绿藻门、蓝藻门和绿藻门，浮游动物的优势门为纤毛虫门、变形虫门和尾藻门。蓝藻的相对丰度低于传统的生物絮团系统，表明这些微生物在合成系统中具有更高的控制能力。因此，离子调节对浮游生物的影响很小，可能是因为在测试的离子操作下，这些离子没有达到限制。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.