2 documents found, page 1 of 1
Size at onset of sexual maturity in Macrobrachium amazonicum (Heller, 1862) phe...
PASCHOAL,LUCAS R.P.; ZARA,FERNANDO J.Abstract The size at the onset of sexual maturity (SOM) was determined in four hololimnetic populations of Macrobrachium amazonicum using morphometric, physiological and functional criteria. Male prawns from two populations analyzed had hypertrophied chelipeds and large body proportions, showing the presence of four morphotypes, i.e. large-size phenotype (LS). However, the other two populations showed smaller m...
Biological associations of color variation in the Indo-Pacific swimming crab Ch...
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 c...