Psammechinus microtuberculatus, also known as the green sea urchin,[2][dubious – discuss] in the family Parechinidae.[1] It was formerly known as Echinus microtuberculatus, and thought to be of the genus Echinus.[3]
| Psammechinus microtuberculatus | |
|---|---|
| |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Echinodermata |
| Class: | Echinoidea |
| Order: | Camarodonta |
| Family: | Parechinidae |
| Genus: | Psammechinus |
| Species: | P. microtuberculatus
|
| Binomial name | |
| Psammechinus microtuberculatus (Blainville, 1825)[1]
| |
| Synonyms | |
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Description
editThis is a small, brown, herbivorous[4] sea urchin nearly spherical in shape. It has with short spines greenish or whitish in colour. It grows to a maximum diameter of 5 centimetres.[4]
Distribution
editPsammechinus microtuberculatus is found in the western and eastern Atlantic Ocean, the Adriatic Sea and Aegean Sea.[5] It also occurs throughout the entire Mediterranean Sea, though very rare.[4]
Habitat
editThis species occurs in the benthic zone at depths of between 1 and 685 metres.[4] It prefers to live near sandy areas, and can be found on hard bottoms of mud or rock.[6]
Behavior
editPsammechinus microtuberculatus is capable of protective camouflage. Under hypoxic conditions, it has been observed to discard its "protecting camouflages when confronted with low DO [dissolved oxygen] concentrations" in order "to increase mobility and/or reduce oxygen demand".[7]
Parasites
editPsammechinus microtuberculatus is known to host the following ectoparasites:[5]
- Asterocheres minutus (Claus), (1889)
- Asterocheres violaceus (Claus), (1889)
References
edit- ^ a b "WoRMS - World Register of Marine Species - Psammechinus microtuberculatus (Blainville, 1825)". Marinespecies.org. Retrieved 2012-06-27.
- ^ "Psammechinus microtuberculatus". Natuurlijkmooi.net. Retrieved 2012-07-21.
- ^ Laubichler, Manfred D.; Davidson, Eric H. (February 2008). "Boveri's long experiment: Sea urchin merogones and the establishment of the role of nuclear chromosomes in development". Developmental Biology. 314 (1): 1–11. doi:10.1016/j.ydbio.2007.11.024. PMC 2247478. PMID 18163986.
- ^ a b c d "Psammechinus microtuberculatus". Sealifebase.org. Retrieved 2012-07-21.
- ^ a b "WoRMS - World Register of Marine Species". Marinespecies.org. Retrieved 2012-07-21.
- ^ "Psammechinus microtuberculatus, Sea urchin". Seadb.net. Archived from the original on 2012-03-06. Retrieved 2012-07-21.
- ^ Riedel, Bettina; Diaz, Robert; Rosenberg, Rutger; Stachowitsch, Michael (March 2016). "Chapter 10: Stressors in the marine environment: physiological responses and ecological implication". In Solan, Martin; Whiteley, Nia (eds.). The ecological consequences of marine hypoxia: from behavioural to ecosystem responses. Oxford University Press. p. 182. ISBN 9780198718826. Retrieved December 27, 2021.