Black roughscale catshark vs Choke

Apristurus melanoasper compared with Epichloe typhina

Key Differences

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

Taxonomic Classification

Rank	Black roughscale catshark	Choke
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Chordata (Chordates)	Ascomycota (Sac Fungi)
Class	Chondrichthyes (Cartilaginous Fish)	Sordariomycetes (Sordariomycetes)
Order	Carcharhiniformes (Ground Sharks)	Hypocreales (Hypocreales)
Family	Scyliorhinidae	Clavicipitaceae
Genus	Apristurus	Epichloe
Species	Apristurus melanoasper	Epichloe typhina

Conservation Status

Black roughscale catshark

LC — Least Concern

Choke

NE — Not Evaluated

Physical Characteristics

Attribute	Black roughscale catshark	Choke
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.

Choke

Habitat

Native to North America, inhabiting ecosystems characteristic of the region.

Range

Found in United States.

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.

Choke

Choke (Epichloe typhina) is an endophytic and pathogenic fungus in the family Clavicipitaceae, phylum Ascomycota, that colonises the tissues of various cool-season grasses (Poaceae) across Europe and North America. The name refers to the disease it causes — infected grass tillers are typically 'choked' (prevented from flowering) when the fungus produces a dense, white to cream-coloured, stromata (a compact fungal structure) that surrounds the flowering stem before it can emerge, suppressing seed production. Epichloe species exist along a mutualism-parasitism continuum; some strains are biotrophic endophytes living almost entirely within grass tissues without obvious symptoms and conferring benefits to the host such as increased drought resistance and deterrence of herbivores through alkaloid production, while others — including E. typhina — are more parasitic in nature, sterilising infected host tillers. The fungus spreads via airborne ascospores produced on its stroma that infect new host plants. Related Epichloe/Neotyphodium endophytes are of great practical importance to agriculture as they produce ergot alkaloids and other compounds that can cause toxicosis in livestock grazing infected pasture grasses. As a fungal pathogen/endophyte rather than a wildlife species, it is Not Evaluated by the IUCN.