Broad skate vs

Amblyraja badia compared with Chroococcus planctonicus

Key Differences

• Broad skate is Least Concern while is Not Evaluated.

Taxonomic Classification

Rank	Broad skate
Kingdom	Animalia (hayvan)	Bacteria (Bacteria)
Phylum	Chordata (Kordalılar)	Cyanobacteria (Siyanobakteri)
Class	Elasmobranchii	Cyanobacteriia
Order	Rajiformes (Rajiformes)	Cyanobacteriales
Family	Rajidae	Microcystaceae
Genus	Amblyraja	Chroococcus
Species	Amblyraja badia	Chroococcus planctonicus

Conservation Status

Broad skate

LC — Least Concern

NE — Not Evaluated

Physical Characteristics

Attribute	Broad skate
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Broad skate

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway and Sweden.

Broad skate

The Broad Skate (Amblyraja badia) is a species in the genus Amblyraja. It is currently classified as Least Concern on the IUCN Red List. This species is recognized for its ecological significance within its native range.

Chroococcus planctonicus is a species of cyanobacteria in the family Chroococcaceae, adapted to the planktonic lifestyle suggested by its specific epithet. Unlike some Chroococcus species that are primarily benthic or periphytic — attached to substrates — Chroococcus planctonicus is characteristic of open-water plankton communities in freshwater lakes and ponds. Planktonic cyanobacteria must maintain a position in the water column for optimal light exposure, and some have evolved gas vesicles to regulate buoyancy, though these are more developed in filamentous bloom-forming genera. Chroococcus planctonicus cells are spherical, occurring in pairs or tetrads within gelatinous sheaths, following the basic morphological plan of the genus. It has been documented from European freshwater systems including Swedish and Finnish lakes, where it contributes to the seasonal phytoplankton community. Cyanobacteria are important primary producers in freshwater ecosystems, particularly in summer when warm temperatures and stratified water columns favor their growth. However, Chroococcus planctonicus is not generally associated with harmful algal blooms, which are more characteristic of genera such as Microcystis and Anabaena. Its conservation status has not been assessed.