Saddleback sculpin – Oligocottus rimensis

Saddleback sculpin, Saddleback Sculpin - Oligocottus rimensis, Oligocottus rimensis
Size: 6.4 cm
Water Type: Marine
Toxicity: Toxic hazard unknown
Red List Status: Not evaluated (NE)
Temperature: 47.3 °F - 62.78 °F (8.5°C - 17.1°C)

The Saddleback Sculpin, scientifically known as Oligocottus rimensis, is a small, colorful fish species found along the Pacific coast of North America. This sculpins, often found in diverse rocky habitats, contribute to the vibrant biodiversity of coastal ecosystems.

Description & Characteristics

The Saddleback Sculpin is a relatively small fish, reaching a maximum size of 6.4 cm. Its distinctive appearance is characterized by a saddle-shaped brown or reddish-brown patch on its back, hence its common name. This patch contrasts against a lighter-colored body, typically a pale yellow or white, with dark spots scattered across its flanks. The species also displays prominent spines on its head and dorsal fin, a common feature of sculpins.

Habitat and Occurrence

Oligocottus rimensis exhibits a preference for rocky habitats, often dwelling in kelp forests, rocky outcrops, rock ledges, and rocky reefs. Their adaptability allows them to thrive in a range of depths, from the lower limit of the intertidal zone (intertidal) to the shelf edge at about 200 meters water depth, encompassing the subtidal, sublittoral, infralittoral, and deep zones of the oceans. This expansive depth range, often classified as neritic, allows the species to occupy a significant portion of the marine environment along the Pacific coast.

Taxonomy

The Saddleback Sculpin, Oligocottus rimensis, belongs to the Class: Teleostei, which encompasses a vast array of bony fishes. Within this class, it falls under the Order: Perciformes, a group known for its diversity and containing a significant proportion of fish species. The family: Cottidae, to which Oligocottus rimensis belongs, is commonly known as the sculpins, and is characterized by their generally spiny features and bottom-dwelling lifestyle.

Distribution and Occurrence

The Saddleback Sculpin, Oligocottus rimensis, is commonly encountered along the Pacific coast of North America. This species often occupies 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. neritic. This distribution pattern places them in a variety of marine ecosystems, emphasizing their adaptability and resilience in a diverse range of environments.

Feeding

Saddleback Sculpin are primarily carnivorous, feeding on small invertebrates like crustaceans, worms, and other small fish. Their diet is adapted to their rocky habitat, where they actively hunt and scavenge for food among crevices and seaweed.

Associated Species

Image References

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