Skip to main content Accessibility help
×
Home

Digestive Protease Activity in Planktonic Crustaceans Feeding at Different Trophic Levels

  • M. Kumlu (a1) and D.A. Jones (a2)

Extract

Trypsin-like enzyme activity of the larvae of two planktonic predatory crustaceans, Homarus gammarus and Nephrops norvegicus (Decapoda: Nephropidae) and the omnivorous larvae of Carcinus maenas (Decapoda: Brachyura) were investigated at each larval stage until metamorphosis. Two copepods, herbivorous or omnivorous grazers, Centropages typicus and Temora longicornis (Copepoda: Calanoidae) were also investigated for this enzyme. A comparison of trypsin-like activity in these and other decapod larvae shows a pattern with high levels in herbivores, low levels in carnivores and intermediate levels in omnivores. Herbivorous planktonic crustaceans appear to rely on high digestive enzyme activities to extract nutrients from less digestible algae or particulates, whereas carnivorous larvae have limited enzymatic capacity as they feed at higher trophic levels upon large and easily digestible prey. Omnivorous Carcinus maenas larvae have intermediate levels of digestive enzymes and are able to transfer between herbivorous and omnivorous feeding.

Copyright

References

Hide All
Abubakr, B. & Jones, D.A., 1992. Functional morphology and ultrastructure of larvae of the anterior midgut diverticulae of Penaeits monodon Fabricius 1789. Crustaceana, 62, 142158.
Anger, K. & Dawirs, R.R., 1981. Influence of starvation on the larval development of Hyas aranens (Decapoda, Majidae). Helgoländer Meeresuntersuchungen, 34, 287311.
Bautista, B. & Harris, R.P., 1992. Copepod gut contents, ingestion rates and grazing impact on phytoplankton in relation to size structure of zooplankton and phytoplankton during a spring bloom. Marine Ecology Progress Series, 82, 4150.
Beard, T.W. & Wickins, J.F., 1992. Techniques for the production of juvenile lobsters (Homarus gammarus (L.)). Fisheries Research Technical Report. MAFF, Directorate of Fisheries Research, Lowestoft, 92, 122.
Biesiot, P.M. & Capuzzo, J.M., 1990. Changes in digestive enzyme activities during early development of the American lobster Homarus americanus Milne Edwards. Journal of Experimental Marine Biology and Ecology, 136, 107122.
Dawirs, R.R., Piischel, C. & Schorn, F., 1986. Temperature and growth in Carcinus maenas L. (Decopoda: Portunidae) larvae reared in the laboratory from hatching through metamorphosis. Journal of Experimental Marine Biology and Ecology, 100, 4774.
Figueiredo, M.J. & Vilela, M.H., 1972. On the artificial culture of Nephrops norvegicus reared from the egg. Aquaculture, 1, 173180.
Harms, J., Meyer-Harms, B., Dawirs, R.R. & Anger, K., 1994. Growth and physiology of Carcinus maenas (Decapoda, Portunidae) larvae in the field and in laboratory experiments. Marine Ecology Progress Series, 108, 107118.
Harms, J. & Seeger, B., 1989. Larval development and survival in seven decapod species (Crustacea) in relation to laboratory diet. Journal of Experimental Marine Biology and Ecology, 133, 120139.
Jones, D.A., Kamarudin, M.S. & Le Vay, L., 1993. The potential for replacement of live feeds in larval culture. Journal of the World Aquaculture Society, 24, 199210.
Jones, D.A., Yule, A.B. & Holland, D.L., in press. Larval nutrition. In Crustacean nutrition (ed D., Akiyama et al.). Mississippi: World Aquaculture Society.
Kumlu, M. & Jones, D.A., 1995a. Feeding and digestion in the caridean shrimp larva of Palaemon elegans Rathke and Macrobrachium rosenbergii de Man (Crustacea: Palaemonidae) on live and artificial diets. Aquaculture Nutrition, 1, 312.
Kumlu, M. & Jones, D.A., 1995b. The effect of live and artificial diets on growth, survival and trypsin activity of larvae of Penaeus indicus. Journal of The World Aquaculture Society, 26, 406415.
Kurmaly, K., 1989. Studies on the acceptability and digestibility of artificial diets by Crustacea. PhD thesis, University of Wales, Bangor.
Kurmaly, K., Jones, D.A. & Yule, A.B., 1990. Acceptability and digestion of diets fed to larval stages of Homarus gammarus and the role of dietary conditioning behaviour. Marine Biology, 106, 181190.
Le Vay, L., Rodriguez, A., Kamarudin, M.S. & Jones, D.A., 1993. Influence of live and artificial diets on tissue composition and trypsin activity in Penaeus japonicus larve. Aquaculture, 118, 287297.
Lovett, D.L. & Felder, D.L., 1990a. Ontogenetic change in digestive enzyme activity of larval and postlarval white shrimp, Penaeus seliferus (Crustacea, Decapoda, Penaeidae). Biological Bulletin. Marine Biological Laboratory, Woods Hole, 178, 144159.
Lovett, D.L. & Felder, D.L., 1990b. Ontogenetic changes in enzyme distribution and midgut function in developmental stages of Penaeus setiferus (Crustacea, Decapoda, Penaeidae). Biological Bulletin. Marine Biological Laboratory, Woods Hole, 178, 160174.
Rick, W., 1974. Trypsin. In Methods in enzymatic analysis (ed H.U., Bergmeyer), pp. 10131024. New York: Academic Press.
Rodriguez, A., Le Vay, L., Mourente, G. & Jones, D.A., 1994. Biochemical composition and digestive enzyme activity in larvae and postlarvae of Penaeus japonicus during herbivorous and carnivorous feeding. Marine Biology, 118, 4551.
Sather, B.T., 1969. A comparative study of amylase and proteinases in some decapod Crustacea. Comparative Biochemistry and Physiology, 28, 371379.
Sokal, R.R. & Rohlf, F.J., 1969. Biometry. The principles and practice of statistics in biological research. San Francisco: W.H. Freeman.
Yonge, C.M., 1937. Evolution and adaptation in the digestive systems of Metazoa. Biological Reviews of the Cambridge Philosophical Society, 12, 87 pp.

Digestive Protease Activity in Planktonic Crustaceans Feeding at Different Trophic Levels

  • M. Kumlu (a1) and D.A. Jones (a2)

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed