06/13/2026
This week's species spotlight is the Pelagic Thresher Shark (Alopias pelagicus). This species is identifiable by its grayish-blue coloration, fusiform body (a spindle-shaped, streamlined form that is widest in the middle and tapers at both ends), short head, and distinctive elongated upper lobe of the caudal (tail) fin, which can be as long as the rest of its body. The pelagic thresher is one of the smaller thresher shark species, typically averaging around 10 feet (3 meters) in length, although individuals can reach up to 16 feet (4.9 meters).
The species is well known for its unique hunting strategy, using its whip-like tail to stun schooling fish and squid before feeding on them, often during nighttime foraging. Pelagic threshers are capable of swimming speeds of up to 22 mph (35 km/h).
Pelagic threshers are found primarily in the tropical and subtropical waters of the Indian and Pacific Oceans, typically inhabiting offshore environments but occasionally occurring near coastal regions. They are highly migratory and are most often observed in the upper layers of the water column. Reproduction is relatively slow, with females giving birth to only a few live pups at a time, typically 2–4 per litter, making the species particularly vulnerable to population declines.
The pelagic thresher is heavily targeted by commercial fisheries for its fins and meat and is also frequently captured as bycatch in longline, gillnet, and purse seine fisheries. As a result of these pressures, the species is currently classified as Endangered by the International Union for Conservation of Nature (IUCN).
Website: wreckreationscuba.com
Email: [email protected]
Call: (912) 439-2007
