Beryx

Beryx is a genus of marine ray-finned fish belonging to the family Berycidae. These fish are commonly known as alfonsinos. They are found in tropical and temperate waters worldwide, typically inhabiting deep-sea environments. Alfonsinos are characterized by their deep bodies, large eyes, and bright red or orange coloration. They often have a single, long dorsal fin with spines.

Several species are recognized within the Beryx genus, including Beryx decadactylus and Beryx splendens. Beryx decadactylus, the common alfonsino, is found in the Atlantic, Indian, and Pacific Oceans. Beryx splendens, the splendid alfonsino, has a similar distribution. These fish are oviparous, meaning they reproduce by laying eggs. Their diet consists mainly of small invertebrates and fish.

Alfonsinos are of commercial importance in some regions, often caught using trawling and deep-sea longline fishing methods. Their flesh is considered edible and is marketed fresh or frozen. Due to their deep-water habitat, they are not as widely encountered as some shallower-dwelling fish. Conservation concerns can arise from overfishing, particularly in areas with targeted fisheries. Research into their life cycles and population dynamics is ongoing to ensure sustainable management.