Alpine Bladder-fern vs Black roughscale catshark

Cystopteris alpina compared with Apristurus melanoasper

Key Differences

• Alpine Bladder-fern is Near Threatened while Black roughscale catshark is Least Concern.

Taxonomic Classification

Rank	Alpine Bladder-fern	Black roughscale catshark
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Tracheophyta	Chordata (Chordates)
Class	Polypodiopsida (Polypodiopsida)	Chondrichthyes (Cartilaginous Fish)
Order	Polypodiales (Polypodiales)	Carcharhiniformes (Ground Sharks)
Family	Cystopteridaceae	Scyliorhinidae
Genus	Cystopteris	Apristurus
Species	Cystopteris alpina	Apristurus melanoasper

Conservation Status

Alpine Bladder-fern

NT — Near Threatened

Black roughscale catshark

LC — Least Concern

Physical Characteristics

Attribute	Alpine Bladder-fern	Black roughscale catshark
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Alpine Bladder-fern

Habitat

Typically found in moist, shaded forest floors and tropical canopies.

Range

Distributed across Norway and Sweden. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Black roughscale catshark

Habitat

Typically found in marine environments from coastal waters to deep ocean.

Alpine Bladder-fern

The Alpine Bladder-fern (Cystopteris alpina) is a species in the genus Cystopteris. It is currently classified as Near Threatened on the IUCN Red List. Typically found in moist, shaded forest floors and tropical canopies. Distributed across Norway and Sweden. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Black roughscale catshark

The Black roughscale catshark (Apristurus melanoasper) is a species in the genus Apristurus. It is currently classified as Least Concern on the IUCN Red List. Typically found in marine environments from coastal waters to deep ocean.