The trawl fishery is considered high predatory and damage substantially the bentonic community. The participation of crustaceans in the by-catch of sea-bob shrimp (Xiphopenaeus kroyeri Heller, 1862) is high. The present study aims to analyze the occurrence and the abundance of the group of crustaceans' by-catch of sea-bob shrimp, in the region of Armação do Itapocoroy, Penha, Santa Catarina. The crustaceans were represented by 15 families, 22 genera and 28 species, the higher diversity occurred in 2000-2001 and the lowest in 1997-1998. The contribution of carcino-group in biomass was superior than X. kroyeri in all the samples, except in 2001-2002 when the highest values of sea-bob shrimp were recorded. The six years of samples indicates seasonal variations in the crustaceans group and in spring (2,4 ± 1,3 kg/h) was registered some increase in the biomass reaching the lowest values in winter (1,8 ± 1,3 kg/h).
Artesian fishery; seasonal fluctuations; bycatch
