blue whale vs

Balaenoptera musculus compared with Nitzschia graciliformis

Key Differences

  • blue whale is Vulnerable while is Not Evaluated.

Taxonomic Classification

Rank blue whale
Kingdom Animalia (動物) Chromista (クロミスタ)
Phylum Chordata (脊索動物) Ochrophyta (オクロ植物)
Class Mammalia (哺乳類) Bacillariophyceae (クサリケイソウ綱)
Order Cetacea (Whales & Dolphins) Bacillariales (Bacillariales)
Family Balaenopteridae (Rorquals) Bacillariaceae
Genus Balaenoptera (Rorquals) Nitzschia
Species Balaenoptera musculus Nitzschia graciliformis

Conservation Status

blue whale

VU — Vulnerable

Population: ~15.0K

Trend: Increasing ↑

NE — Not Evaluated

Physical Characteristics

Attribute blue whale
Diet Carnivore
Average Lifespan 90 years
Average Length 30.0 m
Average Weight 150.0 t

Habitat & Geographic Range

blue whale

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 11 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (Taiwan), Europe (4 countries), and South America (Colombia, Ecuador). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway and Sweden.

blue whale

地球上で生きたことが知られている最大の動物であるシロナガスクジラ(Balaenoptera musculus)は、体長33メートル、体重200トンに達することができ、心臓だけで小型自動車ほどの重さがあります。全ての海洋に生息し、極地の餌場と熱帯の繁殖地の間を回遊します。1日最大4トンのオキアミを摂取する濾過摂食者です。20世紀の捕鯨による絶滅危機からの回復後、世界的な個体数は10,000〜25,000頭と推定される絶滅危惧種です。

Nitzschia graciliformisは、世界中の河川、湖、沿岸水域を含む淡水および汽水の水生生息地に生息する、細長い針状の羽状珪藻類である。細長い珪酸質の殻の片側に特徴的な縫合部系を持ち、滑走運動が可能である。この種は水生の一次生産に貢献するとともに、栄養素レベルへの感受性から淡水生物モニタリングに活用されている。

Shared Countries

Both species can be found in 2 countries:

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