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

IF 1.3 4区环境科学与生态学 Q3 ECOLOGY

Chemistry and Ecology 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

Chemistry and Ecology 环境科学-环境科学

CiteScore

4.20

自引率

16.00%

发文量

审稿时长

3.7 months

期刊介绍： Chemistry and Ecology publishes original articles, short notes and occasional reviews on the relationship between chemistry and ecological processes. This journal reflects how chemical form and state, as well as other basic properties, are critical in their influence on biological systems and that understanding of the routes and dynamics of the transfer of materials through atmospheric, terrestrial and aquatic systems, and the associated effects, calls for an integrated treatment. Chemistry and Ecology will help promote the ecological assessment of a changing chemical environment and in the development of a better understanding of ecological functions.