bulb nematode vs Common Seal

Ditylenchus dipsaci compared with Phoca vitulina

Key Differences

• bulb nematode is Not Evaluated while Common Seal is Near Threatened.

Taxonomic Classification

Rank	bulb nematode	Common Seal
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum	Nematoda (线虫动物门)	Chordata (脊索动物门)
Class	Chromadorea (色矛纲)	Mammalia (哺乳動物)
Order	Rhabditida (小杆目)	Pinnipedia (Seals & Sea Lions)
Family	Anguinidae	Phocidae (True Seals)
Genus	Ditylenchus	Phoca (Harbor Seals)
Species	Ditylenchus dipsaci	Phoca vitulina

Evolutionary Relationship

bulb nematode and Common Seal share a common ancestor at the Kingdom level: Animalia. (动物界)

Conservation Status

bulb nematode

NE — Not Evaluated

Common Seal

NT — Near Threatened

Population: ~500.0K

Trend: Stable →

Physical Characteristics

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

Habitat & Geographic Range

bulb nematode

Habitat

Native to Africa and Asia and Europe, inhabiting ecosystems characteristic of the region.

Range

Widely distributed across Africa (South Africa), Asia (China), Europe (8 countries), and North America (United States).

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.

bulb nematode

The Bulb Nematode (Ditylenchus dipsaci) is a species in the genus Ditylenchus. Native to Africa and Asia and Europe, inhabiting ecosystems characteristic of the region.

Common Seal

分布最广的鳍足类动物港海豹（Phoca vitulina）栖居于北大西洋和北太平洋温带及亚北极沿海水域。成体体重可达130千克，在海中捕食鱼类、鱿鱼和甲壳动物，并在沙滩或礁岩上休息，两者时间大致相当。大而富有表情的眼睛适应于弱光下的水下视觉。港海豹是虎鲸、鲨鱼和北极熊的重要食物来源。

Shared Countries

Both species can be found in 6 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇵🇹 Portugal 🇸🇪 Sweden 🇺🇸 United States