دورية أكاديمية
Temporal patterns of fish occurrence of the euryhaline sector of a subtropical estuary, southern Brazil
| العنوان: | Temporal patterns of fish occurrence of the euryhaline sector of a subtropical estuary, southern Brazil |
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| المؤلفون: | Paula Nakayama, Alberto Carvalho Peret, Olímpio Rafael Cardoso, Marcelo Renato Lamour, Henry Louis Spach |
| المصدر: | Acta Scientiarum: Biological Sciences, Vol 42, Pp e48871-e48871 (2020) |
| بيانات النشر: | Universidade Estadual de Maringá, 2020. |
| سنة النشر: | 2020 |
| المجموعة: | LCC:Biology (General) LCC:Microbiology |
| مصطلحات موضوعية: | fish assemblages, coastal area, abiotic conditions, Biology (General), QH301-705.5, Microbiology, QR1-502 |
| الوصف: | Fish fauna was studied in five sites of the shallow infralittoral of the Paranaguá Bay during the period from October 1999 to September 2000. At each sampling site, fish were sampled with other trawls, salinity and temperature were measured, water samples were taken from the bottom of the water column for determination of dissolved oxygen, dissolved inorganic nitrogen and phosphate. The spatial and temporal behavior of the environmental variables was analyzed by a Principal Component Analysis; Cluster Analysis was used to gather the sampling sites, and Factorial Correspondence Analysis was applied to the most abundant species. Temperature was the most important variable for the distribution of the months, allowing the division of the study period into hot and cold months. The temporal variation in the fish fauna composition was indicated by cluster analysis, with highest percentages of dissimilarity between the sampling sites during hot months. The variation in dissimilarity between the sites occurred due to differences in the number of individuals and species of the catches. The high frequencies of occurrence of Anisotremus surinamensis, Etropus crossotus, Genidens genidens, Micropogonias furnieri and Sphoeroides greeleyi were related to high temperatures. The greatest number of fish and species observed in hot months may be related to the life cycle of many species, which reproduce in warmer months, and whose offspring use estuaries as breeding areas. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1679-9283 1807-863X |
| Relation: | http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/48871; https://doaj.org/toc/1679-9283; https://doaj.org/toc/1807-863X |
| DOI: | 10.4025/actascibiolsci.v42i1.48871 |
| URL الوصول: | https://doaj.org/article/75610626b6d642e8aca95855e7780ec8 |
| رقم الأكسشن: | edsdoj.75610626b6d642e8aca95855e7780ec8 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 16799283 1807863X |
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| DOI: | 10.4025/actascibiolsci.v42i1.48871 |