Gustavo Martins Rocha, Jordana de Carvalho e Féres, Gustavo Meira Kandler, Renata Caiado Cagnin, César Alexandro da Silva, Sarah Karoline Rodrigues, Bethânia Dal’Col Lehrback, Kamila Cezar Gramlich, Renato Rodrigues Neto, Fabian Sá, Luiz Fernando Loureiro Fernandes
{"title":"作为热带沿海泻湖富营养化生物指标的微浮游动物","authors":"Gustavo Martins Rocha, Jordana de Carvalho e Féres, Gustavo Meira Kandler, Renata Caiado Cagnin, César Alexandro da Silva, Sarah Karoline Rodrigues, Bethânia Dal’Col Lehrback, Kamila Cezar Gramlich, Renato Rodrigues Neto, Fabian Sá, Luiz Fernando Loureiro Fernandes","doi":"10.1071/mf23122","DOIUrl":null,"url":null,"abstract":"<strong> Context and aims</strong><p>A reliable bioindicator index of eutrophication is still lacking for monitoring zooplankton in saline, coastal lagoons. We aimed to establish plankton bioindicators of eutrophication that are not affected by salinity variation, which is essential for environmental monitoring of coastal lagoons.</p><strong> Methods</strong><p>Sampling was conducted for microprotozooplankton, chlorophyll-<i>a</i>, nutrients and sterols in eight tropical coastal lagoons with different saline and nutrient concentrations. A testate amoeba and rotifer bioindication index of eutrophication (T&R index) was proposed after establishing a list of indicator species on the basis of five statistical criteria and one bibliographic criterion.</p><strong> Key results</strong><p>Selected species, based on the six criteria, were <i>Arcella hemisphaerica, Brachionus plicatilis, Galeripora</i> (<i>Arcella</i>) <i>discoides, Netzelia corona, Lecane closterocerca, Lepadela patella</i> and <i>Testudinela patina</i>. Biodiversity measures, traditionally used in biomonitoring, varied negatively with salinity (<i>r</i> = −0.60 for Margalef richness and −0.59 for Shannon diversity) and were not correlated with nutrient concentrations. Conversely, the T&R index showed no correlation with salinity (<i>r</i> = 0.002) and was positively correlated with the trophic-state index (TSI) (<i>r</i> = 0.62).</p><strong> Conclusions and implications</strong><p>Our results showed that specific patterns of indicator microprotozooplankton species can effectively diagnose organic pollution in coastal lagoons and their use is a more suitable approach than is the use of community indicators such as richness, evenness and diversity, traditionally used for that task.</p>","PeriodicalId":18209,"journal":{"name":"Marine and Freshwater Research","volume":"369 1","pages":""},"PeriodicalIF":1.8000,"publicationDate":"2024-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Microprotozooplankton as eutrophication bioindicator for tropical coastal lagoons\",\"authors\":\"Gustavo Martins Rocha, Jordana de Carvalho e Féres, Gustavo Meira Kandler, Renata Caiado Cagnin, César Alexandro da Silva, Sarah Karoline Rodrigues, Bethânia Dal’Col Lehrback, Kamila Cezar Gramlich, Renato Rodrigues Neto, Fabian Sá, Luiz Fernando Loureiro Fernandes\",\"doi\":\"10.1071/mf23122\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<strong> Context and aims</strong><p>A reliable bioindicator index of eutrophication is still lacking for monitoring zooplankton in saline, coastal lagoons. We aimed to establish plankton bioindicators of eutrophication that are not affected by salinity variation, which is essential for environmental monitoring of coastal lagoons.</p><strong> Methods</strong><p>Sampling was conducted for microprotozooplankton, chlorophyll-<i>a</i>, nutrients and sterols in eight tropical coastal lagoons with different saline and nutrient concentrations. A testate amoeba and rotifer bioindication index of eutrophication (T&R index) was proposed after establishing a list of indicator species on the basis of five statistical criteria and one bibliographic criterion.</p><strong> Key results</strong><p>Selected species, based on the six criteria, were <i>Arcella hemisphaerica, Brachionus plicatilis, Galeripora</i> (<i>Arcella</i>) <i>discoides, Netzelia corona, Lecane closterocerca, Lepadela patella</i> and <i>Testudinela patina</i>. Biodiversity measures, traditionally used in biomonitoring, varied negatively with salinity (<i>r</i> = −0.60 for Margalef richness and −0.59 for Shannon diversity) and were not correlated with nutrient concentrations. Conversely, the T&R index showed no correlation with salinity (<i>r</i> = 0.002) and was positively correlated with the trophic-state index (TSI) (<i>r</i> = 0.62).</p><strong> Conclusions and implications</strong><p>Our results showed that specific patterns of indicator microprotozooplankton species can effectively diagnose organic pollution in coastal lagoons and their use is a more suitable approach than is the use of community indicators such as richness, evenness and diversity, traditionally used for that task.</p>\",\"PeriodicalId\":18209,\"journal\":{\"name\":\"Marine and Freshwater Research\",\"volume\":\"369 1\",\"pages\":\"\"},\"PeriodicalIF\":1.8000,\"publicationDate\":\"2024-07-04\",\"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/mf23122\",\"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/mf23122","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}
Microprotozooplankton as eutrophication bioindicator for tropical coastal lagoons
Context and aims
A reliable bioindicator index of eutrophication is still lacking for monitoring zooplankton in saline, coastal lagoons. We aimed to establish plankton bioindicators of eutrophication that are not affected by salinity variation, which is essential for environmental monitoring of coastal lagoons.
Methods
Sampling was conducted for microprotozooplankton, chlorophyll-a, nutrients and sterols in eight tropical coastal lagoons with different saline and nutrient concentrations. A testate amoeba and rotifer bioindication index of eutrophication (T&R index) was proposed after establishing a list of indicator species on the basis of five statistical criteria and one bibliographic criterion.
Key results
Selected species, based on the six criteria, were Arcella hemisphaerica, Brachionus plicatilis, Galeripora (Arcella) discoides, Netzelia corona, Lecane closterocerca, Lepadela patella and Testudinela patina. Biodiversity measures, traditionally used in biomonitoring, varied negatively with salinity (r = −0.60 for Margalef richness and −0.59 for Shannon diversity) and were not correlated with nutrient concentrations. Conversely, the T&R index showed no correlation with salinity (r = 0.002) and was positively correlated with the trophic-state index (TSI) (r = 0.62).
Conclusions and implications
Our results showed that specific patterns of indicator microprotozooplankton species can effectively diagnose organic pollution in coastal lagoons and their use is a more suitable approach than is the use of community indicators such as richness, evenness and diversity, traditionally used for that task.
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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