The Pacific spiny dogfish, scientifically known as Squalus suckleyi, is a species of small shark that belongs to the Squalidae family. It is commonly found in the eastern Pacific Ocean, ranging from Alaska to Mexico, and is recognized for its spiky dorsal fins.
The Pacific spiny dogfish typically has a slender and elongated body, reaching an average length of around 3 feet. Its coloration varies from a grayish-brown to a bluish-gray shade, with a lighter underbelly. One of its distinctive features is its sharp, venomous spines located in front of the dorsal fins, which can inflict painful wounds if handled carelessly.
This species inhabits a variety of marine environments, from shallow coastal areas to deep waters, and is often found near the seabed. Pacific spiny dogfish mainly feed on smaller fish, including herring, as well as invertebrates such as squid and crabs. They are known to form large schools, making them an important prey for larger predators such as seals and larger sharks.
While the species was historically targeted for commercial fishing due to its utilization in fishmeal and shark liver oil, the Pacific spiny dogfish is currently subject to strict regulations to prevent overexploitation. Their relatively slow reproductive rate, with females producing a small number of pups per year, has also contributed to their vulnerable status.
Overall, the Pacific spiny dogfish serves an ecological role in maintaining balanced marine ecosystems and plays a significant part in the food chain dynamics in the eastern Pacific Ocean.
