Métricas alimentarias de dos condrictios meso-bentónicos en aguas de Chile central.

Autor: Canales-Cerro, Carlos, Morales, Naití A., Concha, Francisco J., Fernandoy, Francisco, Hernández, Sebastian, Meléndez, Roberto, Klarian, Sebastian A.
Zdroj: Revista de Biologia Marina y Oceanografía (RBMO); 2022 Special Issue, Vol. 57, p234-238, 5p
Abstrakt: Little has been studied of the food metrics of most chondrichthyans, which provide baseline information for the assessment of fishing status to guide the development of ecosystem-based management plans. Therefore, the main goal of this study was to approach the isotopic niche of Dipturus chilensis and Callorhinchus callorynchus in the Bay of Valparaíso (central Chile). The main findings showed that C. callorynchus presented a narrow ellipse (E= 0.79; RC= 4.14; θ= 1.39), meanwhile D. chilensis, presented an ellipse with greater extension (E= 0.95; RC= 8.23; θ= -0.11), therefore a wide isotopic niche. [ABSTRACT FROM AUTHOR]
Databáze: Supplemental Index