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Biological associations of color variation in the Indo-Pacific swimming crab Charybdis hellerii Anais da ABC (AABC)
WATANABE,TIMOTEO T.; ZARA,FERNANDO J.; HATTORI,GUSTAVO Y.; TURRA,ALEXANDER; SANT'ANNA,BRUNO S..
A marine biological invasion is a natural process accelerated by human activities, and the crab Charybdis hellerii is an example of a globally widespread invasive species. This study evaluated color variation in C. hellerii and its relationship to the sex, size and sexual maturity of these crabs, and compared the efficiency of a freeware digital image-editing program with a commercially available program. The color of the individuals was analyzed using standardized digital images. The color pattern varied significantly with size; smaller and immature individuals were darker than larger and mature ones. The female abdomen changed in morphology and color with sexual maturity, becoming wider and orange-colored. There was no statistical difference in the color...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Brachyura; Coloration variation; Digital image; Portunidae.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652015000100219
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