Muhammad Raznisyafiq Razak, Ahmad Zaharin Aris, Muhammad Rozaimi Mohd Zaki, Fatimah Md Yusoff, Zetty Norhana Balia Yusof
{"title":"热带栉水母Moina micrura对多种环境因素的物候学和生活史反应","authors":"Muhammad Raznisyafiq Razak, Ahmad Zaharin Aris, Muhammad Rozaimi Mohd Zaki, Fatimah Md Yusoff, Zetty Norhana Balia Yusof","doi":"10.1071/mf23173","DOIUrl":null,"url":null,"abstract":"<strong> Context</strong><p>Climate change and global warming has led to changes in water-quality parameters, which in turn have negative consequences for zooplankton.</p><strong> Aims</strong><p>To investigate the effects of various environmental stressors (pH, temperature, photoperiod, and food concentration) on the tropical freshwater microcrustacean <i>Moina micrura</i>.</p><strong> Methods</strong><p>The study examined the effects of these stressors on survival (lifespan), reproduction (days to first brood, number of broods, and total offspring), growth (individual size and total moulting), physiology (heart rate), and sex-switching effects (total male offspring).</p><strong> Key results</strong><p>Significant (<i>P</i> < 0.05) reductions in the total offspring, individual size, and heart rate of <i>M. micrura</i> were observed when exposed to acidic (pH 5) and alkaline (pH 9) conditions. Conversely, higher water temperatures (31°C) and longer light exposure (20 h) were found to increase total offspring and heart rate in <i>M. micrura</i>. Furthermore, male offspring were produced only under conditions of food scarcity (no food supply and 1 × 10<sup>2</sup> cells mL<sup>−1</sup>).</p><strong> Conclusions</strong><p>Climate change has a significant effect on the life-history traits of <i>M. micrura</i>, a tropical cladoceran species.</p><strong> Implications</strong><p>Vital insights that can guide policymakers and practitioners in developing more effective strategies to safeguard and preserve tropical freshwater aquatic habitats, especially those of zooplankton species.</p>","PeriodicalId":18209,"journal":{"name":"Marine and Freshwater Research","volume":"90 1","pages":""},"PeriodicalIF":1.8000,"publicationDate":"2024-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Phenological and life-history responses of a tropical cladoceran Moina micrura to multiple environmental drivers\",\"authors\":\"Muhammad Raznisyafiq Razak, Ahmad Zaharin Aris, Muhammad Rozaimi Mohd Zaki, Fatimah Md Yusoff, Zetty Norhana Balia Yusof\",\"doi\":\"10.1071/mf23173\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<strong> Context</strong><p>Climate change and global warming has led to changes in water-quality parameters, which in turn have negative consequences for zooplankton.</p><strong> Aims</strong><p>To investigate the effects of various environmental stressors (pH, temperature, photoperiod, and food concentration) on the tropical freshwater microcrustacean <i>Moina micrura</i>.</p><strong> Methods</strong><p>The study examined the effects of these stressors on survival (lifespan), reproduction (days to first brood, number of broods, and total offspring), growth (individual size and total moulting), physiology (heart rate), and sex-switching effects (total male offspring).</p><strong> Key results</strong><p>Significant (<i>P</i> < 0.05) reductions in the total offspring, individual size, and heart rate of <i>M. micrura</i> were observed when exposed to acidic (pH 5) and alkaline (pH 9) conditions. Conversely, higher water temperatures (31°C) and longer light exposure (20 h) were found to increase total offspring and heart rate in <i>M. micrura</i>. Furthermore, male offspring were produced only under conditions of food scarcity (no food supply and 1 × 10<sup>2</sup> cells mL<sup>−1</sup>).</p><strong> Conclusions</strong><p>Climate change has a significant effect on the life-history traits of <i>M. micrura</i>, a tropical cladoceran species.</p><strong> Implications</strong><p>Vital insights that can guide policymakers and practitioners in developing more effective strategies to safeguard and preserve tropical freshwater aquatic habitats, especially those of zooplankton species.</p>\",\"PeriodicalId\":18209,\"journal\":{\"name\":\"Marine and Freshwater Research\",\"volume\":\"90 1\",\"pages\":\"\"},\"PeriodicalIF\":1.8000,\"publicationDate\":\"2024-04-11\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Marine and Freshwater Research\",\"FirstCategoryId\":\"93\",\"ListUrlMain\":\"https://doi.org/10.1071/mf23173\",\"RegionNum\":4,\"RegionCategory\":\"环境科学与生态学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"FISHERIES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Marine and Freshwater Research","FirstCategoryId":"93","ListUrlMain":"https://doi.org/10.1071/mf23173","RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"FISHERIES","Score":null,"Total":0}
Phenological and life-history responses of a tropical cladoceran Moina micrura to multiple environmental drivers
Context
Climate change and global warming has led to changes in water-quality parameters, which in turn have negative consequences for zooplankton.
Aims
To investigate the effects of various environmental stressors (pH, temperature, photoperiod, and food concentration) on the tropical freshwater microcrustacean Moina micrura.
Methods
The study examined the effects of these stressors on survival (lifespan), reproduction (days to first brood, number of broods, and total offspring), growth (individual size and total moulting), physiology (heart rate), and sex-switching effects (total male offspring).
Key results
Significant (P < 0.05) reductions in the total offspring, individual size, and heart rate of M. micrura were observed when exposed to acidic (pH 5) and alkaline (pH 9) conditions. Conversely, higher water temperatures (31°C) and longer light exposure (20 h) were found to increase total offspring and heart rate in M. micrura. Furthermore, male offspring were produced only under conditions of food scarcity (no food supply and 1 × 102 cells mL−1).
Conclusions
Climate change has a significant effect on the life-history traits of M. micrura, a tropical cladoceran species.
Implications
Vital insights that can guide policymakers and practitioners in developing more effective strategies to safeguard and preserve tropical freshwater aquatic habitats, especially those of zooplankton species.
期刊介绍：
Marine and Freshwater Research is an international and interdisciplinary journal publishing contributions on all aquatic environments. The journal’s content addresses broad conceptual questions and investigations about the ecology and management of aquatic environments. Environments range from groundwaters, wetlands and streams to estuaries, rocky shores, reefs and the open ocean. Subject areas include, but are not limited to: aquatic ecosystem processes, such as nutrient cycling; biology; ecology; biogeochemistry; biogeography and phylogeography; hydrology; limnology; oceanography; toxicology; conservation and management; and ecosystem services. Contributions that are interdisciplinary and of wide interest and consider the social-ecological and institutional issues associated with managing marine and freshwater ecosystems are welcomed.
Marine and Freshwater Research is a valuable resource for researchers in industry and academia, resource managers, environmental consultants, students and amateurs who are interested in any aspect of the aquatic sciences.
Marine and Freshwater Research is published with the endorsement of the Commonwealth Scientific and Industrial Research Organisation (CSIRO) and the Australian Academy of Science.
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