Identificador persistente para citar o vincular este elemento: http://hdl.handle.net/10553/122101
Título: Pathological study of angel sharks (Squatina Squatina) found dead in The Canary Islands
Autores/as: Suárez-Santana, Cristian M. 
Navarro Sarmiento, Jose 
Ponce-Marrero, L.
De Sales Ribeiro, Maria Carolina 
Curros Moreno, Angel De La Guarda 
Montero, G.
Arbelo Hernández, Manuel Antonio 
Castro Alonso, Ayoze 
Caballero Cansino, María José 
Clasificación UNESCO: 3105 Peces y fauna silvestre
310907 Patología
Palabras clave: Elasmobranch
Dead
Reproductive status
Fishing interaction
Histopathology
Fecha de publicación: 2023
Editor/a: Servicio de Publicaciones y Difusión Científica de la Universidad de Las Palmas de Gran Canaria (ULPGC) 
Conferencia: VIII International Symposium on Marine Sciences (ISMS 2022) 
Resumen: The angel shark is listed as critically endangered species. The Canary Islands are considered a unique stronghold for these animals (Barker et al., 2016), but unfortunately some have been found stranded or dead in the recent years. The IUSA-ULPGC together with the Government of the Canary Islands and, in collaboration with researchers of the “Angel Shark Project: Canary Islands”, have performed the necropsies of angel sharks found dead from 2021 to 2022. 10 angel sharks (4 females and 6 males) were studied during this period: 6 in Lanzarote, 2 in Tenerife, 1 in Gran Canaria, and 1 in Fuerteventura. 1 of these animals was in a severe autolytic status, 4 presented advance decomposition and in 3, it was moderated. Only 2 specimens well preserved. The weights ranged: female (10.6-13.8kg) and male (9.6-13kg). According to reproductive status (Osaer et al., 2015), all females were mature with large developing follicles in the ovaries and distended, vascularised uterus. One female was pregnant, with a fetus inside the left uterine horn. The males were mature, with dilated ductus deferent that contained abundant seminal fluid. Other findings were cestodal intestinal infestation and congestion in the stomach mucosa. The necropsy and histopathological analysis resulted inconclusive to determinate the cause of death in eight of the animals. However, two individuals were found entangled with fishing nets and with associated skin lesions. This preliminary research shows new data of potential death causes in angel sharks in the Canary Islands and for future conservation management plans.
URI: http://hdl.handle.net/10553/122101
ISBN: 978-84-9042-477-3
Fuente: Abstracts Volume VIII International Symposium on Marine Sciences, July 2022 / coordinación, María Esther Torres Padrón, p. 419
Colección:Póster de congreso
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