Black roughscale catshark vs

Apristurus melanoasper compared with Chroococcus prescottii

Key Differences

• Black roughscale catshark is Least Concern while is Not Evaluated.

Taxonomic Classification

Rank	Black roughscale catshark
Kingdom	Animalia (Animals)	Bacteria (Bacteria)
Phylum	Chordata (Chordates)	Cyanobacteria (Cyanobacteria)
Class	Chondrichthyes (Cartilaginous Fish)	Cyanobacteriia
Order	Carcharhiniformes (Ground Sharks)	Cyanobacteriales
Family	Scyliorhinidae	Microcystaceae
Genus	Apristurus	Chroococcus
Species	Apristurus melanoasper	Chroococcus prescottii

Conservation Status

Black roughscale catshark

LC — Least Concern

NE — Not Evaluated

Physical Characteristics

Attribute	Black roughscale catshark
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black roughscale catshark

Habitat

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

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway and Sweden.

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.

Chroococcus prescottii is a species of cyanobacteria in the family Chroococcaceae, named in honor of the American phycologist Gerald Weber Prescott, who made major contributions to the study of freshwater algae in North America during the twentieth century. Like other Chroococcus species, it consists of spherical cells arranged in pairs or small groups within a gelatinous sheath matrix. Cyanobacteria of this genus are common inhabitants of freshwater lakes, bogs, and other aquatic environments across temperate and boreal regions. Chroococcus prescottii has been documented from North American and European freshwater localities. The species occupies the plankton or periphyton of its host water bodies, contributing to primary production through photosynthesis. In aquatic food webs, small cyanobacteria serve as food for herbivorous zooplankton such as cladocerans and copepods, linking primary production to higher trophic levels. The taxonomy of Chroococcus has been complicated by the variable expression of morphological characters under differing environmental conditions and by the recognition through molecular analysis that the genus as traditionally defined is polyphyletic. Chroococcus prescottii has not been assessed by the IUCN.