Crab

Fatty acid composition evaluation of edible parts of Eriocheir sinensis in intensive ponds of Gucheng waters

J. Y. Yu and Yan, P. S., “Fatty acid composition evaluation of edible parts of Eriocheir sinensis in intensive ponds of Gucheng waters”, vol. 14, pp. 5334-5345, 2015.

In Gucheng Lake, Jiangsu Province, China, randomly selected crabs were fed 2 diet types. Crab crude oil methyl ester analysis was performed using gas chromatography-mass spectrometry. Fatty acid compositions in the 3 edible parts of a crab - the hepatopancreas, gonad, and muscle - were analyzed. C16:1 and C18:2 were significantly higher in most commercial pellet feed-feeding crabs than in small trash fish-feeding crabs, while the opposite was observed for eicosapentaenoic and docosahexaenoic acids. Phytanic acid reached 1.93% in the hepatopancreas of small trash fish-feeding crabs.

Single primer-based DNA amplification as a suitable and low-cost tool for assessing genetic diversity in mangrove crabs

F. B. Britto, Mendes, D. S. F., Ogawa, M., Cintra, I. H. A., and Diniz, F. M., “Single primer-based DNA amplification as a suitable and low-cost tool for assessing genetic diversity in mangrove crabs”, vol. 10. pp. 4084-4092, 2011.

We used single primer-based DNA markers to assess genetic variability of the mangrove crab, Ucides cordatus, collected from four different localities from Pará to Santa Catarina States in Brazil (almost 5000 km distant). Five primers were chosen based on the consistency of the amplified bands and the polymorphism of each locus. A total of 78 loci were amplified in 76 samples; high polymorphism rates were detected in the entire sample (80.8%) and within each locality (73.5-79.5%).

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