Dogfish shark

The spiny dogfish, aka piked dogfish, spiky dog, or rock salmon, is among the most prevalent shark species in the world. They get their name due to the fact that they have the habit of chasing down smaller fish while in packs, like dogs would. They also possess 2 sharp and venomous spines. Unfortunately, these sharks, and their subspecies, are listed as Vulnerable to Endangered. #dogfish #fish #ocean #predator #prey #sea #shark #spiny #spinydogfish #venom #venomous #worldwide

Chain Shark - A small, spotted shark that has a characteristic fluorescent activity. Considered harmless and rarely encountered by humans. The shark occupies depths of 190 to 1,178 ft and occupies shallower depths in the northern region compared to southern areas. Sizes of the species range from 0.36 feet (immature), to 1.5 feet (adult). Females tend to be larger at maturity, being 1.7 feet long compared to their male counterparts at 1.64 feet. Spends the daytime resting at the bottom.

Chain Catshark [scyliorhinus retifer], known as Chain Dogfish is a species that's common from George’s Bank in Massachusetts, to Nicaragua + the species is considered harmless, is rarely encountered by humans, has been known to feed on squid, bony fish, polychaetes, crustaceans.

Dogfish shark, DE

Illustration of the external and internal anatomy of a typical shark.

A new study investigated microplastic ingestion in four species of demersal sharks in the North Atlantic Ocean, and found that 67% of sampled sharks contained plastic particles and fibers, pointing toward the pervasiveness of plastic in the marine environment. The sharks likely ingested the plastic through a food source, like crustaceans, or sediment.