Gemeiner Stechrochen vs Grosse Tümmler, Grosstümmler

Potamotrygon motoro compared with Tursiops truncatus

Key Differences

• Gemeiner Stechrochen is Data Deficient while Grosse Tümmler, Grosstümmler is Least Concern.

Taxonomic Classification

Rank	Gemeiner Stechrochen	Grosse Tümmler, Grosstümmler
Kingdom same	Animalia (Tier)	Animalia (Tier)
Phylum same	Chordata (Chordatiere)	Chordata (Chordatiere)
Class	Elasmobranchii	Mammalia (Säugetiere)
Order	Myliobatiformes (Stechrochenartige)	Cetacea (Whales & Dolphins)
Family	Potamotrygonidae	Delphinidae (Oceanic Dolphins)
Genus	Potamotrygon	Tursiops (Bottlenose Dolphins)
Species	Potamotrygon motoro	Tursiops truncatus

Evolutionary Relationship

Gemeiner Stechrochen and Grosse Tümmler, Grosstümmler share a common ancestor at the Phylum level: Chordata. (Chordatiere)

Conservation Status

Gemeiner Stechrochen

DD — Data Deficient

Grosse Tümmler, Grosstümmler

LC — Least Concern

Population: ~600.0K

Trend: Stable →

Physical Characteristics

Attribute	Gemeiner Stechrochen	Grosse Tümmler, Grosstümmler
Diet	—	Carnivore
Average Lifespan	—	45 years
Average Length	—	3.0 m
Average Weight	—	300.0 kg

Habitat & Geographic Range

Gemeiner Stechrochen

Habitat

Inhabits tropical and subtropical moist broadleaf forests within the Indomalayan biogeographic realm.

Range

Distributed across Brazil, Colombia, Ecuador, Singapore, and Venezuela.

Grosse Tümmler, Grosstümmler

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 12 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (Taiwan), Europe (6 countries), and South America (Colombia, Ecuador, Venezuela).

Gemeiner Stechrochen

The Black river stingray (Potamotrygon motoro) is a species in the genus Potamotrygon. It is currently classified as Data Deficient on the IUCN Red List. Inhabits tropical and subtropical moist broadleaf forests within the Indomalayan biogeographic realm.

Grosse Tümmler, Grosstümmler

The most studied and recognized dolphin species, bottlenose dolphins inhabit warm and temperate oceans worldwide, from coastal shallows to the open sea. Highly intelligent with large brains relative to body size, they demonstrate self-recognition, complex communication, and social learning. They live in fluid fission-fusion societies and cooperate to herd fish. A keystone indicator species for marine ecosystem health.

Shared Countries

Both species can be found in 3 countries:

🇨🇴 Colombia 🇪🇨 Ecuador 🇻🇪 Venezuela