vs コウテイペンギン

Cocconeis pinnata compared with Aptenodytes forsteri

Key Differences

is Not Evaluated while コウテイペンギン is Near Threatened.

Taxonomic Classification

Rank		コウテイペンギン
Kingdom	Chromista (クロミスタ)	Animalia (動物)
Phylum	Ochrophyta (オクロ植物)	Chordata (脊索動物)
Class	Bacillariophyceae (クサリケイソウ綱)	Aves (鳥類)
Order	Achnanthales (Achnanthales)	Sphenisciformes (Penguins)
Family	Cocconeidaceae	Spheniscidae (Penguins)
Genus	Cocconeis	Aptenodytes (Great Penguins)
Species	Cocconeis pinnata	Aptenodytes forsteri

Conservation Status

NE — Not Evaluated

コウテイペンギン

NT — Near Threatened

Population: ~595.0K

Trend: Stable →

Physical Characteristics

Attribute		コウテイペンギン
Diet	—	Carnivore
Average Lifespan	—	20 years
Average Length	—	1.1 m
Average Weight	—	40.0 kg

Habitat & Geographic Range

Habitat

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

Range

Distributed across Brazil, Norway, and Sweden.

コウテイペンギン

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and boreal forests and taiga, among 4 distinct biome types within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Found in Norway. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Cocconeis pinnata is a marine and brackish-water diatom in the family Cocconeidaceae, distinguished within the genus by the pinnate (feather-like) arrangement of its striae and the specific valve morphology of its silica frustule. As an adnate epiphyte, C. pinnata attaches to a wide variety of substrates in coastal and estuarine environments, including seagrass blades, macroalgal surfaces, sandy sediments, and biogenic hard substrates such as shells and coral rubble. The species has been documented from tropical and subtropical marine habitats across the Indo-Pacific and Atlantic, with records from South American coastal waters as well as other warm marine regions. Cocconeis pinnata plays a significant ecological role in seagrass ecosystems, where epiphytic diatom communities including this species form a productive biofilm layer on leaf surfaces that serves as food for grazing invertebrates, sea urchins, and small fish. In areas of excessive nutrient loading, however, proliferation of epiphytic algae including diatoms can shade out the underlying seagrass, contributing to meadow decline. The production and dissolution of silica frustules by marine benthic diatoms contributes to the benthic silica cycle, linking biological productivity with the geochemistry of shallow coastal sediments. Species-level identification of Cocconeis taxa requires electron microscopy due to subtle morphological differences. Conservation status has not been formally assessed.

コウテイペンギン

世界最大のペンギンであるコウテイペンギン（Aptenodytes forsteri）は体高最大1.2m、体重45kgで、地球上で最も過酷な環境の一つである南極大陸に生息しています。零下60°C以下の真冬の暗闇の中で繁殖し、雌が海上にいる間、雄が65日間足の上で育雛嚢の下に一つの卵を温め続けます。数千羽からなる群れで個体が暖かい中心部を循環するいわゆるハドリング行動は、協調的な生存戦略の傑作です。