Rosy sculpin – Oligocottus rubellio

Rosy sculpin, Rosy Sculpin, Oligocottus rubellio
Size: 10 cm

The Rosy Sculpin, scientifically known as Oligocottus rubellio, is a small, colorful fish commonly found in tide pools and rocky intertidal habitats. Its vibrant coloration and relatively small size make it a fascinating subject for marine enthusiasts.

Description & Characteristics

The Rosy Sculpin, Oligocottus rubellio, is a relatively small fish, reaching a maximum size of 10.0 cm. Its body is typically stout and somewhat flattened, with a slightly rounded head. The most striking feature of this species is its vibrant coloration. It is often characterized by a rosy-red to pink hue, with spots or blotches of darker red or orange scattered across its body. These colors can vary depending on the individual and its environment. The Rosy Sculpin also possesses a prominent dorsal fin, which runs along the length of its back, and a distinctive pelvic fin positioned under its throat.

Habitat and Occurrence

The Rosy Sculpin, Oligocottus rubellio, is a common resident of the intertidal zone, specifically in tide pools and rocky pools. These environments provide a stable and sheltered habitat for this species. This fish is found in Subtidal, sublittoral, infralittoral, and deep zone of the oceans from the lower limit of the intertidal zone (intertidal) to the shelf edge at about 200 m water depth. These areas are referred to as the neritic zone, encompassing the coastal waters of the ocean.

Taxonomy

The Rosy Sculpin, Oligocottus rubellio, belongs to the Class: Teleostei, which represents a diverse group of bony fishes. This species falls within the Order: Perciformes, a vast order that encompasses a wide range of fish, including perches, basses, and groupers. Finally, Oligocottus rubellio is a member of the Family: Cottidae, commonly known as the sculpins, a family characterized by their typically stout and often spiny bodies.

Distribution and Occurrence

The Rosy Sculpin, Oligocottus rubellio, is found along the Pacific coast of North America, extending from Alaska down to California. This widespread distribution reflects its adaptability to various coastal habitats. It thrives in the Subtidal, sublittoral, infralittoral, and deep zone of the oceans from the lower limit of the intertidal zone (intertidal) to the shelf edge at about 200 m water depth. These areas are referred to as the neritic zone, encompassing the coastal waters of the ocean.

Feeding

The Rosy Sculpin, Oligocottus rubellio, is a carnivorous fish. Its diet consists primarily of a variety of small invertebrates, including amphipods, copepods, crustacean larvae, crustaceans, Daphnia salina, echinoderm larvae, invertebrates, mysis, worms, and zoobenthos. This diverse diet highlights its opportunistic feeding habits and its role as a predator in the intertidal ecosystem.

Associated Species

Image References

Leave a Comment