Diet of the freshwater stingray Potamotrygon motoro (Chondrichthyes: Potamotrygonidae) on Marajó Island (Pará, Brazil)
| العنوان: | Diet of the freshwater stingray Potamotrygon motoro (Chondrichthyes: Potamotrygonidae) on Marajó Island (Pará, Brazil) |
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| المؤلفون: | M P Almeida, P M O Lins, Ronaldo Borges Barthem, P Charvet-Almeida |
| المصدر: | Brazilian Journal of Biology, Volume: 70, Issue: 1, Pages: 155-162, Published: FEB 2010 Repositório Institucional do MPEG Museu Paraense Emílio Goeldi (MPEG) instacron:MPEG ResearcherID Brazilian Journal of Biology v.70 n.1 2010 Brazilian Journal of Biology Instituto Internacional de Ecologia (IIE) instacron:IIE Repositório Institucional da UFPA Universidade Federal do Pará (UFPA) instacron:UFPA |
| بيانات النشر: | FapUNIFESP (SciELO), 2010. |
| سنة النشر: | 2010 |
| مصطلحات موضوعية: | Male, Potamotrygonidae, animal structures, Potamotrygon motoro, Estuarine habitats, Pará - Estado, Fresh Water, alimentação de peixes, Food Preferences, ambientes estuarinos, Stingray, Animals, Skates, Fish, Chondrichthyes, Potamotrygon, biology, Ecology, fungi, Ilha de Marajó - PA, biology.organism_classification, Pará - Brasil, Amazônia brasileira, Gastrointestinal Contents, fish feeding, Diet, Raia de água doce, Dieta, Female, Estuários, Ilha de Marajó (PA), General Agricultural and Biological Sciences, Peixe, Brazil |
| الوصف: | O conteúdo estomacal de 137 exemplares de Potamotrygon motoro provenientes de 3 localidades (Muaná, Afuá e Lago Arari) na ilha de Marajó foi analisado. Os valores do Índice Relativo de Importância (IRI) e respectiva porcentagem (%IRI) foram calculados. O nível de repleção 1 (¼ cheio) foi o mais representativo para ambos os sexos, assim como para exemplares imaturos e maduros. A maioria dos itens alimentares analisados encontrava-se bastante digerido. A identificação dos itens alimentares indicou a presença de 15 ordens, incluindo insetos, moluscos, crustáceos, anelídeos e peixes. Diferenças na dieta entre os locais amostrados foram observadas ao se comparar as %IRI, sendo crustáceos o item preferencial em Afuá, peixes no Lago Arari e moluscos em Muaná. The stomach contents of 137 examples of Potamotrygon motoro caught in 3 locations (Muaná, Afuá and Lake Arari) on Marajó Island were analysed. The values of the Index of Relative Importance (IRI) and its respective percentage (%IRI) were calculated. The level of repletion 1 (¼ full) was the most representative for both sexes, as well as for immature and mature specimens. Most of the food items found were well-digested. The food items identification indicated the presence of 15 orders, including insects, mollusks, crustaceans, annelids and fish. Differences in diet were observed among the locations studied when comparing %IRI, crustaceans being the most preferred in Afuá, fish in Lake Arari and mollusks in Muaná. |
| وصف الملف: | text/html |
| تدمد: | 1519-6984 |
| DOI: | 10.1590/s1519-69842010000100022 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::903d38410ae17cb75091602621e0d527 https://doi.org/10.1590/s1519-69842010000100022 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....903d38410ae17cb75091602621e0d527 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 15196984 |
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| DOI: | 10.1590/s1519-69842010000100022 |