Ecomorphology of the digestive tract of the brazilian electric ray Narcine brasiliensis (Olfers, 1831) (Torpediniformes: Narcinidae)

Autor(es)

Marinsek, Gabriela Pustiglione ; de Lima Viliod, Marcela Coffacci ; Mari, Renata de Britto

• Tipo de documento: Artigo Científico
• Fonte: ACTA ZOOLOGICA; v. 98, n. 3, p. 229-236, JUL 2017.
• Citações Web of Science: 1

Resumo

Elasmobranchii shows particular characteristics that make them susceptible to the impacts caused by fishing pressure, especially bottom trawling, which mostly affect rays, as they have demersal habits. Based on food availability and feeding ability, Polychaeta and Sipunculiforme are the bases of Brazilian electric ray Narcine brasiliensis diet. Morphologically, the digestion starts in the oesophagus with acid mucines action. The existence of acid and neutral mucines in the posterior intestine prevents lesions in the mucosa and favours the passage of faeces and shell residues. Thus, this study shows the interaction between their habitat, the organisms and their morphophysiology. (AU)

• Processo FAPESP: 13/25766-6 - Ecomorfologia do trato digestório da raia elétrica Narcine brasiliensis (Olfers, 1831) (Torpediniformes: Narcinidae) no litoral Sul do estado de São Paulo
• Beneficiário: Gabriela Pustiglione Marinsek
• Modalidade de apoio: Bolsas no Brasil - Iniciação Científica
• Processo FAPESP: 12/19419-9 - Fauna acompanhante: um universo químico a ser explorado
• Beneficiário: Wagner Vilegas
• Modalidade de apoio: Auxílio à Pesquisa - Programa BIOTA - Regular