First record of the scoophead shark (Sphyrna media) and new records of great hammerhead sharks (Sphyrna mokarran) in the Guatemalan Pacific

IF 2.1 4区环境科学与生态学 Q3 ECOLOGY

Regional Studies in Marine Science Pub Date : 2025-03-08 DOI:10.1016/j.rsma.2025.104122

Ana Cristina Hérnandez , Julio Sánchez-Jiménez , María de los Angeles Rosales-Melgar , Elisa M. Areano-Barillas , Juan Carlos Pérez-Jiménez

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引用次数: 0

Abstract

A juvenile scoophead shark (Sphyrna media) and four juvenile great hammerhead sharks (Sphyrna mokarran) captured with longlines (< 30 m depth) by small-scale fisheries off the coast of Buena Vista and Sipacate in the Guatemalan Pacific are reported. These species are categorized as Critically Endangered by the IUCN Red List, primarily due to overfishing. All the specimens were juveniles: a male S. media (71 cm TL) and four S. mokarran, including a female (114 cm TL) and three males (79.5, 122, and 149.5 cm TL). Sphyrna mokarran specimens recorded in our study are the smallest ever reported for the Eastern Pacific region. Sphyrna media specimen is the first recorded in the Guatemalan Pacific, increasing the number of hammerhead species to four and the total number of shark species recorded off the Guatemalan Pacific to sixteen.

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来源期刊

Regional Studies in Marine Science Agricultural and Biological Sciences-Ecology, Evolution, Behavior and Systematics

CiteScore

3.90

自引率

4.80%

发文量

336

审稿时长

69 days

期刊介绍： REGIONAL STUDIES IN MARINE SCIENCE will publish scientifically sound papers on regional aspects of maritime and marine resources in estuaries, coastal zones, continental shelf, the seas and oceans.