Berycidae
Berycidae is a family of ray-finned fishes, commonly known as alfonsinos. They are found in the deep waters of all oceans, inhabiting depths ranging from 200 to 2,000 meters. These fishes are characterized by their elongated, compressed bodies, large eyes, and a distinctive, pointed snout. They have a single dorsal fin located far back on the body and a forked tail fin. The body is covered in small, rough scales that are often embedded in the skin.
Common Names
Members of the Berycidae family are commonly known as alfonsinos, though they are also referred to as squirrelfishes or soldierfishes. These names reflect their striking coloration and the distinctive vertical stripes that adorn some species.
Characteristics
Alfonsinos possess a number of unique characteristics that distinguish them from other fish species. These include:
- Elongated, compressed bodies: Their bodies are deep and compressed laterally, giving them a streamlined appearance.
- Large eyes: They have exceptionally large eyes, which are adapted for seeing in the dim light conditions of their deep-sea habitat.
- Pointed snout: Their snout is long and pointed, giving them a distinctive profile.
- Single dorsal fin: They have a single, long dorsal fin located far back on their body.
- Forked tail fin: Their caudal fin is forked, providing powerful propulsion.
- Small, rough scales: Their scales are small and rough, and often embedded in their skin.
Environment
Alfonsinos are found in the deep waters of all oceans, primarily in the mesopelagic zone, which extends from 200 to 1,000 meters below the surface. Some species have been found in even deeper waters, reaching depths of 2,000 meters. They are typically found on the continental slopes and seamounts, where they inhabit areas with rocky bottoms and strong currents.
References
For more information on Berycidae, you can visit the following websites: