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Digestive enzyme spectra in crustacean decapods (Paleomonidae, Portunidae and Penaeidae) feeding in the natural habitat
Author(s) -
Figueiredo Maria Santos Reis Bonorino,
Anderson Alex J
Publication year - 2009
Publication title -
aquaculture research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.646
H-Index - 89
eISSN - 1365-2109
pISSN - 1355-557X
DOI - 10.1111/j.1365-2109.2008.02087.x
Subject(s) - biology , portunus pelagicus , portunidae , scylla serrata , crustacean , zoology , digestive enzyme , decapoda , ecology , fishery , amylase , enzyme , biochemistry
This work describes the profile of five proteases and four carbohydrases from the crustacean decapods Macrobrachium australiense (Holthuis), Scylla serrata (Forskal), Portunus pelagicus (Linnaeus), Penaeus esculentus, Penaeus plebejus (Hess) and Metapenaeus bennettae (Racck & Dall), feeding in the natural habitat, in order to provide an indication of their digestive capabilities. The results raised the following points. First, species from each family showed a particular suite of digestive enzymes. Second, the activity of cellulase from M. australiensis and S. serrata , using AZCL‐HE cellulose as the substrate, was around 90% higher than that observed with AZO‐CM cellulose. However, for P. pelagicus and P. esculentus , the enzyme activity was better with AZO‐CM cellulose. Third, M. australiense displayed the highest ratio of amylase to protease activity. In contrast, Portunidae specie s, P. pelagicus and S. serrata showed the lowest ratios. Fourth, comparison of the laminarinase activity of M. bennettae and P. esculentus in October (Spring) and December (early Summer) showed a significant decrease in December. Finally, the wide distribution of digestive enzymes in these crustaceans may reflect different feeding habits and habitats.