Mixing models and stable isotopes as tools for research on feeding aquatic organisms
ABSTRACT: Implementation of mixture models in isotopic analysis has been increasing due to the need to analyze sources and understand their variations in relation to consumers, which requires an accurate determination of their discriminant rate and fractioning. In this context, we presented the mai...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Universidade Federal de Santa Maria
2018-07-01
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| Series: | Ciência Rural |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000700650&lng=en&tlng=en |
| _version_ | 1819078219771412480 |
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| author | Cyntia Rafaela Ferreira de Moraes Gustavo Gonzaga Henry-Silva |
| author_facet | Cyntia Rafaela Ferreira de Moraes Gustavo Gonzaga Henry-Silva |
| author_sort | Cyntia Rafaela Ferreira de Moraes |
| collection | DOAJ |
| description | ABSTRACT: Implementation of mixture models in isotopic analysis has been increasing due to the need to analyze sources and understand their variations in relation to consumers, which requires an accurate determination of their discriminant rate and fractioning. In this context, we presented the main concepts related to the application of stable isotopes and mixing models, with the aim to analyze the benefits and problems of these tools in surveys on nutrition of aquatic organisms. The predominant methods identified included application of the models IsoSource, MixSIR, SIBER and SIAR, with the use of C and N isotopes in research with aquatic organisms. Studies in both freshwater and marine environments were evaluated to determine the relative contribution of the main food items and understand trophic relationships between organisms. It can be concluded that the application of mixing models, with the stable isotope technique, is a promising tool for research on feeding aquatic organisms and understanding issues related to trophic ecology of these organisms. |
| first_indexed | 2024-12-21T19:09:37Z |
| format | Article |
| id | doaj.art-d8174a57312143d584642594deea152d |
| institution | Directory Open Access Journal |
| issn | 1678-4596 |
| language | English |
| last_indexed | 2024-12-21T19:09:37Z |
| publishDate | 2018-07-01 |
| publisher | Universidade Federal de Santa Maria |
| record_format | Article |
| series | Ciência Rural |
| spelling | doaj.art-d8174a57312143d584642594deea152d2022-12-21T18:53:15ZengUniversidade Federal de Santa MariaCiência Rural1678-45962018-07-0148710.1590/0103-8478cr20160101S0103-84782018000700650Mixing models and stable isotopes as tools for research on feeding aquatic organismsCyntia Rafaela Ferreira de MoraesGustavo Gonzaga Henry-SilvaABSTRACT: Implementation of mixture models in isotopic analysis has been increasing due to the need to analyze sources and understand their variations in relation to consumers, which requires an accurate determination of their discriminant rate and fractioning. In this context, we presented the main concepts related to the application of stable isotopes and mixing models, with the aim to analyze the benefits and problems of these tools in surveys on nutrition of aquatic organisms. The predominant methods identified included application of the models IsoSource, MixSIR, SIBER and SIAR, with the use of C and N isotopes in research with aquatic organisms. Studies in both freshwater and marine environments were evaluated to determine the relative contribution of the main food items and understand trophic relationships between organisms. It can be concluded that the application of mixing models, with the stable isotope technique, is a promising tool for research on feeding aquatic organisms and understanding issues related to trophic ecology of these organisms.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000700650&lng=en&tlng=enalimentonutriçãodietaspeixe |
| spellingShingle | Cyntia Rafaela Ferreira de Moraes Gustavo Gonzaga Henry-Silva Mixing models and stable isotopes as tools for research on feeding aquatic organisms Ciência Rural alimento nutrição dietas peixe |
| title | Mixing models and stable isotopes as tools for research on feeding aquatic organisms |
| title_full | Mixing models and stable isotopes as tools for research on feeding aquatic organisms |
| title_fullStr | Mixing models and stable isotopes as tools for research on feeding aquatic organisms |
| title_full_unstemmed | Mixing models and stable isotopes as tools for research on feeding aquatic organisms |
| title_short | Mixing models and stable isotopes as tools for research on feeding aquatic organisms |
| title_sort | mixing models and stable isotopes as tools for research on feeding aquatic organisms |
| topic | alimento nutrição dietas peixe |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000700650&lng=en&tlng=en |
| work_keys_str_mv | AT cyntiarafaelaferreirademoraes mixingmodelsandstableisotopesastoolsforresearchonfeedingaquaticorganisms AT gustavogonzagahenrysilva mixingmodelsandstableisotopesastoolsforresearchonfeedingaquaticorganisms |