Strongylocentrotus droebachiensi

The food preferences of macroinvertebrate herbivores for seaweeds containing high DMSP concentrations vary enormously among herbivore species. When temperate green and purple sea urchins Strongylocentrotus droebachiensis and S. purpuratus)... 

Adams NL, Stuck JM (1996) Mycosporine-like amino acids provide protection against ultraviolet radiation in eggs of the green sea urchin Strongylocentrotus droebachiensis. Photochem Photobiol 64 149-158... 

Li, C., Haug, T., Styrvold, . B., Jorgensen, T.0., and Stensvag, K. (2008). Strongylocins, novel antimicrobial peptides from the green sea urchin, Strongylocentrotus droebachiensis. Dev. Comp. Immunol. 32,1430-1440. 

Vilela-Silva, A. C, Castro, M. O., Valente, A. P., Biermann, . H., and Mourao, P. A. (2002). Sulfated fucans from the egg jellies of the closely related sea urchins Strongylocentrotus droebachiensis and Strongylocentrotus pallidus ensure species-specific fertilization. J. Biol. Chem. 277,379-387. 

Pearce, C. M. and Scheibling, R. E., Induction of metamorphosis of larvae of the green sea-urchin, Strongylocentrotus droebachiensis, by coralline red algae, Biol. Bull., 179, 304, 1990. 

Carroll, A. K. and Shick, J. M., Dietary accumulation of UV-absorbing mycosporine-like amino acids (MAAs) by the green sea urchin (Strongylocentrotus droebachiensis), Mar. Biol., 124, 561, 1996. 

N.L. Adams (2001). UV radiation evokes negative phototaxis and covering behavior in the sea urchin Strongylocentrotus droebachiensis. Mar. Ecol. Progr. Ser., 213, 87-95. 

There have been few detailed studies of the fatty acid compositions of echinids, but these animals often have high levels of polyunsaturated acids, particularly arachi-donic acid (20 4n-6) and EPA (20 5n-3). They also contain several non-methylene interrupted dienoic acids (NMIDs) in which the double bonds are not separated by a methylene (Joseph, 1989, pp. 90-100), but the most original finding may be that of a series of 2-hydroxy acids with 22, 23 or 24 carbon atoms, saturated and mono-unsaturated (n-9). Table 26.4 shows the major fatty acids (>1%) of Strongylocentrotus droebachiensis (Joseph, 1989) and Tripneustes esculentus (Carballeira, Shalabi, and Reyes, 1994). 

The subtle differences observed for both compositions may be attributable to environmental differences related to the geographic origin of the species, Strongylocentrotus droebachiensis having been harvested in tropical Puerto Rico and Tripneustes esculentus in the north-east Atlantic (Nova Scotia). 

Taban et al. (2004) observed, by the comet assay carried out with mussels (Mytilus edulis L.) and sea urchin (Strongylocentrotus droebachiensis), an increase in the percentage of the comet tail size, in relation to the negative control, after 4-5 days of exposition of the organisms to the crude oil. These data indicated that the comet ass is a good tool to biomonitor damages in the DNA of marine invertebrates exposed to oil contamination. 

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