Feeding habits of Urotrygon microphthalmum (Myliobatiformes: Urotrygonidae) caught off northeastern Brazil

Autor: Jones Santander-Neto, Dante J. V. Freitas, Hugo Bornatowski, Rosângela Lessa
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Neotropical Ichthyology, Vol 19, Iss 4 (2021)
Druh dokumentu: article
ISSN: 1982-0224
DOI: 10.1590/1982-0224-2021-0039
Popis: Abstract The feeding habits of Urotrygon microphthalmum, a Critically Endangered (CR) species, were investigated through stomach contents analysis from specimens caught on bottom double rigged otter trawls in Pernambuco state, Brazil, between March of 2010 and March of 2012. A total of 338 stomachs were analyzed, and 31 food items were identified in the diet of U. microphthalmum. The species ingests mainly shrimps. The diets between males and females were not different, and an ontogenetic diet shift was not observed. The estimated species’ trophic level is 3.5, classifying it as a secondary order consumer.
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