Daishi Naruse, Japan
Info
The Izu Stingray is an endemic ray species that lives only from the namesake waters around the Izu Peninsula, Japan.
SeaLifeBase states that it is a harmless species, with stingrays that can also reside in very shallow waters, bathers, divers and snorkelers should keep a greater distance from the animal, which may well inflict serious and deep, profuse bleeding injuries to humanswith its sting.
The first photo of Daishi Naruse shows an animal with numerous scratches on its back. We can speculate about the exact origin of the scratches, which may have come from sharp-edged corals, or are the result of "pushing" over sand and rock surfaces, which the ray could have used to remove skin parasites.
We are happy to include other reasons for these scratches.
Hemitrygon izuensis lives on various benthic creatures that the ray detects and exposes in the sand using its sensory organs, the Lorenzinian ampullae, which make up electric fields of prey.
Synonym: Dasyatis izuensis Nishida & Nakaya, 1988
$stingray
We would like to thank Daishi Naruse, Japan, for the first picture of this stingray species.
If you want to find out about the size of rays in specialist literature, usually written in English, you will often come across two abbreviations that ultimately mean the same thing: DW or WD.
If you look at FishBase, WoRMS or first descriptions of rays, you will find these abbreviations.
The total length including shoal is only rarely given, the TL.
SeaLifeBase states that it is a harmless species, with stingrays that can also reside in very shallow waters, bathers, divers and snorkelers should keep a greater distance from the animal, which may well inflict serious and deep, profuse bleeding injuries to humanswith its sting.
The first photo of Daishi Naruse shows an animal with numerous scratches on its back. We can speculate about the exact origin of the scratches, which may have come from sharp-edged corals, or are the result of "pushing" over sand and rock surfaces, which the ray could have used to remove skin parasites.
We are happy to include other reasons for these scratches.
Hemitrygon izuensis lives on various benthic creatures that the ray detects and exposes in the sand using its sensory organs, the Lorenzinian ampullae, which make up electric fields of prey.
Synonym: Dasyatis izuensis Nishida & Nakaya, 1988
$stingray
We would like to thank Daishi Naruse, Japan, for the first picture of this stingray species.
If you want to find out about the size of rays in specialist literature, usually written in English, you will often come across two abbreviations that ultimately mean the same thing: DW or WD.
If you look at FishBase, WoRMS or first descriptions of rays, you will find these abbreviations.
The total length including shoal is only rarely given, the TL.
