Thaís Rodrigues Maciel, Enzo Moreno, Barbara Maichak de Carvalho, Nathan Miller, Marcelo Vianna, Esteban Avigliano
{"title":"通过耳石微化学揭示极卤鲶鱼 Genidens genidens 对高盐度水的利用","authors":"Thaís Rodrigues Maciel, Enzo Moreno, Barbara Maichak de Carvalho, Nathan Miller, Marcelo Vianna, Esteban Avigliano","doi":"10.1111/aec.13573","DOIUrl":null,"url":null,"abstract":"<p>Migratory patterns of the catfish <i>Genidens genidens</i> in four estuaries along the Brazilian Atlantic coast are reconstructed from otolith Sr/Ca, a salinity proxy, to test estuarine-dependency. To facilitate interpretation of this proxy in otolith core-to-edge profiles, a Sr/Ca Reference Value for High Salinity (RVHS<sub>Sr/Ca</sub>) of 4.88 mmol/mol was established experimentally, from fish specimens reared in water with a salinity level (33 psu) between estuarine and high salinity (marine) water. All wild specimens exhibited otolith Sr/Ca values higher than RVHS<sub>Sr/Ca</sub>, suggesting that <i>G. genidens</i> utilizes environments with marine salinity. Our results reveal highly variable environmental histories, with at least five major habitat usage patterns. Most distinctive among these, we find that (a) fish from Paranaguá Estuarine Complex (PEC) exhibit high intraindividual heterogeneity; (b) most fish (57%) from Guanabara Bay (GB) exhibit prolonged exposure to very high salinities, often exceeding 36.5 psu levels found in some shelf sectors; and (c) some fish from Paraiba do Sul River, GB and PEC exhibit Sr/Ca values below RVHS<sub>Sr/Ca</sub> consistent with estuarine residence. These results suggest that <i>G. genidens</i> is not strictly estuarine-dependent.</p>","PeriodicalId":8663,"journal":{"name":"Austral Ecology","volume":"49 8","pages":""},"PeriodicalIF":1.6000,"publicationDate":"2024-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"High-salinity water use of euryhaline catfish Genidens genidens revealed by otolith microchemistry\",\"authors\":\"Thaís Rodrigues Maciel, Enzo Moreno, Barbara Maichak de Carvalho, Nathan Miller, Marcelo Vianna, Esteban Avigliano\",\"doi\":\"10.1111/aec.13573\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Migratory patterns of the catfish <i>Genidens genidens</i> in four estuaries along the Brazilian Atlantic coast are reconstructed from otolith Sr/Ca, a salinity proxy, to test estuarine-dependency. To facilitate interpretation of this proxy in otolith core-to-edge profiles, a Sr/Ca Reference Value for High Salinity (RVHS<sub>Sr/Ca</sub>) of 4.88 mmol/mol was established experimentally, from fish specimens reared in water with a salinity level (33 psu) between estuarine and high salinity (marine) water. All wild specimens exhibited otolith Sr/Ca values higher than RVHS<sub>Sr/Ca</sub>, suggesting that <i>G. genidens</i> utilizes environments with marine salinity. Our results reveal highly variable environmental histories, with at least five major habitat usage patterns. Most distinctive among these, we find that (a) fish from Paranaguá Estuarine Complex (PEC) exhibit high intraindividual heterogeneity; (b) most fish (57%) from Guanabara Bay (GB) exhibit prolonged exposure to very high salinities, often exceeding 36.5 psu levels found in some shelf sectors; and (c) some fish from Paraiba do Sul River, GB and PEC exhibit Sr/Ca values below RVHS<sub>Sr/Ca</sub> consistent with estuarine residence. These results suggest that <i>G. genidens</i> is not strictly estuarine-dependent.</p>\",\"PeriodicalId\":8663,\"journal\":{\"name\":\"Austral Ecology\",\"volume\":\"49 8\",\"pages\":\"\"},\"PeriodicalIF\":1.6000,\"publicationDate\":\"2024-07-26\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Austral Ecology\",\"FirstCategoryId\":\"93\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1111/aec.13573\",\"RegionNum\":4,\"RegionCategory\":\"环境科学与生态学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"ECOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Austral Ecology","FirstCategoryId":"93","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1111/aec.13573","RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ECOLOGY","Score":null,"Total":0}
High-salinity water use of euryhaline catfish Genidens genidens revealed by otolith microchemistry
Migratory patterns of the catfish Genidens genidens in four estuaries along the Brazilian Atlantic coast are reconstructed from otolith Sr/Ca, a salinity proxy, to test estuarine-dependency. To facilitate interpretation of this proxy in otolith core-to-edge profiles, a Sr/Ca Reference Value for High Salinity (RVHSSr/Ca) of 4.88 mmol/mol was established experimentally, from fish specimens reared in water with a salinity level (33 psu) between estuarine and high salinity (marine) water. All wild specimens exhibited otolith Sr/Ca values higher than RVHSSr/Ca, suggesting that G. genidens utilizes environments with marine salinity. Our results reveal highly variable environmental histories, with at least five major habitat usage patterns. Most distinctive among these, we find that (a) fish from Paranaguá Estuarine Complex (PEC) exhibit high intraindividual heterogeneity; (b) most fish (57%) from Guanabara Bay (GB) exhibit prolonged exposure to very high salinities, often exceeding 36.5 psu levels found in some shelf sectors; and (c) some fish from Paraiba do Sul River, GB and PEC exhibit Sr/Ca values below RVHSSr/Ca consistent with estuarine residence. These results suggest that G. genidens is not strictly estuarine-dependent.
期刊介绍：
Austral Ecology is the premier journal for basic and applied ecology in the Southern Hemisphere. As the official Journal of The Ecological Society of Australia (ESA), Austral Ecology addresses the commonality between ecosystems in Australia and many parts of southern Africa, South America, New Zealand and Oceania. For example many species in the unique biotas of these regions share common Gondwana ancestors. ESA''s aim is to publish innovative research to encourage the sharing of information and experiences that enrich the understanding of the ecology of the Southern Hemisphere.
Austral Ecology involves an editorial board with representatives from Australia, South Africa, New Zealand, Brazil and Argentina. These representatives provide expert opinions, access to qualified reviewers and act as a focus for attracting a wide range of contributions from countries across the region.
Austral Ecology publishes original papers describing experimental, observational or theoretical studies on terrestrial, marine or freshwater systems, which are considered without taxonomic bias. Special thematic issues are published regularly, including symposia on the ecology of estuaries and soft sediment habitats, freshwater systems and coral reef fish.
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