Strongylocentrotus fragilis
Strongylocentrotus fragilis is a species of sea urchin of the family Strongylocentrotidae.
Strongylocentrotus fragilis | |
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Strongylocentrotus fragilis | |
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Species: | A. fragilis |
Binomial name | |
Strongylocentrotus fragilis (Jackson, 1912) | |
Description and characteristics
This is a regular sea urchin, with a spherical test bearing the anus and top and mouth on the bottom. They are somewhat flattened, and of pale pinkish color with white spines. It is a deep-sea species, and they can occur in great number where food is abundant.
![](../I/m/Olympic_Coast_National_Marine_Sanctuary_2009_Allocentrotus_fragilis_and_Strongylocentrotus_pallidus.jpg)
ahStrongylocentrotus fragilis (pink) with some Strongylocentrotus pallidus (white).
Habitat and range
This is an abyssal species, occurring at many hundred meters deep on the western coasts of the North America. [1] They are distributed throughout the continental shelf and slope, being most abundant in the 200-300m depth range. [2] [3]
Taxinomy
It was first scientifically described in 1912 by Jackson.[4]
This species is often referred as Allocentrotus fragilis, and its taxonomy is still under debate.[1]
gollark: I generally get AP ones, so it's more like 5 days for me.
gollark: If I get back into it, I plan to overdocument all of my process.
gollark: I don't have any NDs, but I have done a lot of experiments and made some (which I traded off).
gollark: I have so many stupidly messy things I could breed a CB prize with.
gollark: Fun Things to Do With a CB Prize:- breed with random high-gen messy- breed with own children- randomly dump 2Gs in the AP or offer them on trades for low-value stuff- ND the 2Gs- give the 2Gs only to those who figure out the answer to a riddle
References
- Andreas Kroh & Andrew Smith. "Allocentrotus fragilis". Echinoid Directory (Natural History Museum).
- Sato, Kirk; Kevin, Lisa; Schiff, Kenneth (March 2017). "Habitat compression and expansion of sea urchins in response to changing climate conditions on the California continental shelf and slope (1994–2013)". Deep Sea Research Part II: Topical Studies in Oceanography. 137: 377-389.
- Sato, Kirk; Powell, Jackson; Rudie, Dave; Levin, Lisa (May 2018). "Evaluating the promise and pitfalls of a potential climate change–tolerant sea urchin fishery in southern California". ICES Journal of Marine Science. 75: 1029-1041.
- Kroh, A. (2010). Strongylocentrotus fragilis (Jackson, 1912). In: Kroh, A. & Mooi, R. (2010) World Echinoidea Database. at the World Register of Marine Species.
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