Common Seal vs Macroalgae

Phoca vitulina compared with Caulerpa brachypus

Key Differences

Common Seal is Near Threatened while Macroalgae is Not Evaluated.

Taxonomic Classification

Rank	Common Seal	Macroalgae
Kingdom	Animalia (動物)	Plantae (植物)
Phylum	Chordata (脊索動物)	Chlorophyta (緑藻植物門)
Class	Mammalia (哺乳類)	Ulvophyceae (アオサ藻綱)
Order	Pinnipedia (Seals & Sea Lions)	Bryopsidales (ハネモ目)
Family	Phocidae (True Seals)	Caulerpaceae
Genus	Phoca (Harbor Seals)	Caulerpa
Species	Phoca vitulina	Caulerpa brachypus

Conservation Status

Common Seal

NT — Near Threatened

Population: ~500.0K

Trend: Stable →

Macroalgae

NE — Not Evaluated

Physical Characteristics

Attribute	Common Seal	Macroalgae
Diet	Carnivore	—
Average Lifespan	30 years	—
Average Length	1.7 m	—
Average Weight	80.0 kg	—

Habitat & Geographic Range

Common Seal

Habitat

Typically found in diverse ecosystems where prey species are available.

Range

Found across Europe (7 countries) and North America (United States). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Macroalgae

Habitat

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

Range

Distributed across Brazil and United States.

Common Seal

最も広く分布する鰭脚類であるゴマフアザラシの近縁種・ゼニガタアザラシ（Phoca vitulina）は、北大西洋と北太平洋の温帯・亜北極沿岸に生息する。成体は最大130kgに達し、海での魚・イカ・甲殻類の捕食と海岸や岩場での休息にほぼ同じ時間を費やす。大きく表情豊かな目は低照度での水中視覚に適応している。シャチ・サメ・ホッキョクグマにとって重要な食料源である。