vs البلشون الرمادي, مالك الحزين الرمادي

Cocconeis disculus compared with Ardea cinerea

Key Differences

is Not Evaluated while البلشون الرمادي, مالك الحزين الرمادي is Least Concern.

Taxonomic Classification

Rank		البلشون الرمادي, مالك الحزين الرمادي
Kingdom	Chromista (أسناخ صبغية)	Animalia (حيوانات)
Phylum	Ochrophyta (طحالب داكنة)	Chordata (حبليات)
Class	Bacillariophyceae (Bacillariophyceae)	Aves (طيور)
Order	Achnanthales (Achnanthales)	Pelecaniformes (بجعيات)
Family	Cocconeidaceae	Ardeidae
Genus	Cocconeis	Ardea
Species	Cocconeis disculus	Ardea cinerea

Conservation Status

NE — Not Evaluated

البلشون الرمادي, مالك الحزين الرمادي

LC — Least Concern

Trend: Stable →

Physical Characteristics

Attribute		البلشون الرمادي, مالك الحزين الرمادي
Diet	—	Carnivore
Average Lifespan	—	15 years
Average Length	—	95 cm
Average Weight	—	1.5 kg

Habitat & Geographic Range

Habitat

Native to Europe and South America, inhabiting ecosystems characteristic of the region.

Range

Distributed across Brazil, Norway, and Sweden.

البلشون الرمادي, مالك الحزين الرمادي

Habitat

Typically found in diverse ecosystems where prey species are available.

Range

Found across Europe (6 countries).

Cocconeis disculus is a freshwater and brackish-water diatom in the family Cocconeidaceae, belonging to the class Bacillariophyceae—the diatoms, a group of unicellular photosynthetic algae encased in ornate silica cell walls called frustules. Like all members of the genus Cocconeis, C. disculus is an adnate, epiphytic species, meaning it lives attached to substrates—typically the surfaces of aquatic macrophytes, filamentous algae, and sediment particles—rather than living freely in the water column. The frustule of Cocconeis species is distinctive in its bilateral symmetry and the characteristic difference between its two valves: the rapheless valve (RV) lacks the raphe slit present on the raphe valve (RV), a feature used in species identification. Cocconeis disculus has been documented from freshwater bodies across South America and various parts of the Northern Hemisphere, with distribution reflecting its tolerance of a range of water temperatures and nutrient conditions. Diatoms like C. disculus are foundational components of aquatic food webs, fixing carbon through photosynthesis and providing a nutritious food source for grazing invertebrates, protists, and larval fish. The species also contributes to the biosilica cycle through the production and dissolution of its silica frustule. As a benthic, substrate-attached organism, Cocconeis disculus serves as a sensitive bioindicator of water quality conditions in freshwater monitoring programs. Its conservation status is not formally evaluated.

البلشون الرمادي, مالك الحزين الرمادي

A large, elegant wading bird reaching up to 1 meter in height, gray herons inhabit wetlands, rivers, lakes, and coastal areas across Europe, Asia, and Africa. Patient, solitary hunters, they stand motionless for long periods before striking fish, frogs, and small mammals with lightning-fast dagger bill strikes. They nest colonially in tall trees in rookeries called heronries, sometimes shared with other colonial waterbirds. Widely distributed and of Least Concern globally.