Hohojirozame vs Clymene Dolphin
Carcharodon carcharias compared with Stenella clymene
Key Differences
- Hohojirozame is Vulnerable while Clymene Dolphin is Least Concern.
Taxonomic Classification
| Rank | Hohojirozame | Clymene Dolphin |
|---|---|---|
| Kingdom same | Animalia (動物) | Animalia (動物) |
| Phylum same | Chordata (脊索動物) | Chordata (脊索動物) |
| Class | Chondrichthyes (軟骨魚綱) | Mammalia (哺乳類) |
| Order | Lamniformes (ネズミザメ目) | Cetacea (Whales & Dolphins) |
| Family | Lamnidae (Mackerel Sharks) | Delphinidae (Oceanic Dolphins) |
| Genus | Carcharodon (Great White Sharks) | Stenella |
| Species | Carcharodon carcharias | Stenella clymene |
Evolutionary Relationship
Hohojirozame and Clymene Dolphin share a common ancestor at the Phylum level: Chordata. (脊索動物)
Conservation Status
Hohojirozame
VU — VulnerablePopulation: ~3.5K
Trend: Decreasing ↓
Clymene Dolphin
LC — Least ConcernPhysical Characteristics
| Attribute | Hohojirozame | Clymene Dolphin |
|---|---|---|
| Diet | Carnivore | — |
| Average Lifespan | 70 years | — |
| Average Length | 5.0 m | — |
| Average Weight | 1.1 t | — |
Habitat & Geographic Range
Hohojirozame
Found across multiple habitat types including tropical and subtropical moist broadleaf forests, temperate broadleaf and mixed forests, and temperate grasslands and steppes, among 9 distinct biome types spanning the Indomalayan and Neotropic and Palearctic realms. Populations are also found in montane and highland environments at higher elevations.
Distributed across Chile, Norway, Portugal, and Taiwan. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.
Clymene Dolphin
Typically found in diverse terrestrial and aquatic ecosystems.
Distributed across Norway and Venezuela.
Hohojirozame
地球上で最大の捕食性魚類であるホホジロザメは、全世界の主要な大洋の冷涼な沿岸・外洋域に生息し、体長6メートル、体重2,000キログラムに達することがあります。海洋哺乳類、大型魚類、海鳥を主な獲物として下方からの待ち伏せ攻撃を行う最上位捕食者です。その恐ろしい評判にもかかわらず、人間への非挑発的な攻撃は極めてまれです。フカヒレ採取、混獲、目的的漁獲によって個体数が減少しており、多くの地域で法的保護を受けているにもかかわらず危急(VU)に分類されています。
Clymene Dolphin
The Clymene dolphin, Stenella clymene, is a small cetacean endemic to the tropical and subtropical waters of the Atlantic Ocean, ranging from the Gulf of Mexico and Caribbean Sea south along both the western and eastern Atlantic margins to approximately 20 degrees south latitude. Often called the short-snouted spinner dolphin, it is the only known naturally occurring cetacean hybrid species, believed to have originated through hybridization between the spinner dolphin (S. longirostris) and the striped dolphin (S. coeruleoalba). Clymene dolphins are acrobatic and frequently perform spinning leaps similar to but less elaborate than their spinner relatives. They travel in schools typically ranging from 10 to several hundred individuals, sometimes associating with other dolphin species. The species inhabits deep offshore pelagic waters and is rarely observed close to coastlines. It feeds primarily on fish and cephalopods, foraging at night when mesopelagic prey move into shallower waters. Clymene dolphins measure approximately 1.7–2 meters in length and display a distinctive tripartite pattern of dark cape, lighter grey flanks, and white or pale yellow belly. The species is assessed as Least Concern by the IUCN due to its relatively wide range and no evidence of major population-level threats.
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