Big eye thresher shark vs Thread Weed

Alopias superciliosus compared with Ulva compressa

Key Differences

• Big eye thresher shark is Vulnerable while Thread Weed is Least Concern.

Taxonomic Classification

Rank	Big eye thresher shark	Thread Weed
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Chordata (Chordates)	Chlorophyta (Chlorophyta)
Class	Chondrichthyes (Cartilaginous Fish)	Ulvophyceae (Ulvophyceae)
Order	Lamniformes (Mackerel Sharks)	Ulvales (Ulvales)
Family	Alopiidae	Ulvaceae
Genus	Alopias	Ulva
Species	Alopias superciliosus	Ulva compressa

Conservation Status

Big eye thresher shark

VU — Vulnerable

Thread Weed

LC — Least Concern

Physical Characteristics

Attribute	Big eye thresher shark	Thread Weed
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Big eye thresher shark

Habitat

Typically found in marine environments from coastal waters to deep ocean.

Range

Distributed across Chile, Colombia, Portugal, Taiwan, and Venezuela. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Thread Weed

Habitat

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

Range

Widely distributed across Asia (Taiwan), Europe (4 countries), Oceania and the Pacific (New Zealand), and South America (Brazil).

Big eye thresher shark

The Big eye thresher shark (Alopias superciliosus) is a species in the genus Alopias. It is currently classified as Vulnerable on the IUCN Red List. Typically found in marine environments from coastal waters to deep ocean.

Shared Countries

Both species can be found in 2 countries:

🇵🇹 Portugal 🇹🇼 Taiwan