Biochemical correlates of growth and condition in juvenile Atlantic cod (Gadus morhua) from Newfoundland

Canadian Journal of Fisheries and Aquatic Sciences - Tập 55 Số 7 - Trang 1591-1598 - 1998
Patrice Couture, Jean‐Denis Dutil, Helga Guderley

Tóm tắt

The aim of this study was to examine how the biochemical composition of tissues varied with growth rate and condition in juvenile Atlantic cod (Gadus morhua) caught in the wild and kept in captivity. The hepatosomatic index, brain water content, and muscle sarcoplasmic protein content as well as the activities of phosphofructokinase, lactate dehydrogenase, nucleoside diphosphate kinase, and citrate synthase in the muscle, nucleoside diphosphate kinase and citrate synthase in the intestine, and cytochrome c oxidase and citrate synthase in the brain increased with growth rate or condition factor. Conversely, liver and muscle water contents were lower in fish with a higher growth rate. A multiple regression model that included the hepatosomatic index, water content of muscle and brain, and citrate synthase activity in the intestine explained 79.7% of the variability of growth in mass under our conditions. A similar model, using liver water content instead of muscle water content, explained 82.5% of the variability of growth in length. These easy to measure variables may be used in fisheries management to estimate the growth rate of fish in the wild.

Từ khóa


Tài liệu tham khảo

Ando S., 1986, Fish Physiol. Biochem., 1, 17026, 10.1007/BF02309590

Black D., 1986, J. Comp. Physiol. B Biochem. Syst. Environ. Physiol., 156, 4690479

Chouinard G.A., 1994, Lawrence. ICES Mar. Sci. Symp., 198, 1210139

Dutil J.-D., 1998, Can. J. Fish. Aquat. Sci., 55, 7880795

Goolish E.M., 1987, Physiol. Zool., 60, 4540464, 10.1086/physzool.60.4.30157907

Guderley H., 1996, Can. J. Fish. Aquat. Sci., 53, 5500557, 10.1139/f95-219

Hutchings J.A., 1994, Can. J. Fish. Aquat. Sci., 51, 212602146, 10.1139/f94-214

Jobling M., 1988, Aquaculture, 70, 1019, 10.1016/0044-8486(88)90002-6

Lambert Y., 1997, Can. J. Fish. Aquat. Sci., 54, 238802400

Lambert Y., 1997, Can. J. Fish. Aquat. Sci., 54, 1040112

Mommsen T.P., 1980, Can. J. Zool., 58, 178501799, 10.1139/z80-246

Myers R.A., 1995, Can. J. Fish. Aquat. Sci., 52, 127401285

Pelletier D., 1993, J. Exp. Zool., 265, 4770487, 10.1002/jez.1402650503

Pelletier D., 1993, Fish Physiol. Biochem., 12, 83093, 10.1007/BF00004373

Pelletier D., 1994, J. Comp. Physiol. B Biochem. Syst. Environ. Physiol., 164, 1790190, 10.1007/BF00354078

Pelletier D., 1995, J. Exp. Biol., 198, 149301497, 10.1242/jeb.198.7.1493

Smith P.K., 1985, Anal. Biochem., 150, 76085, 10.1016/0003-2697(85)90442-7

Somero S.N., 1990, J. Exp. Biol., 149, 3190333, 10.1242/jeb.149.1.319

Taylor C.R., 1981, Resp. Physiol., 44, 1010

von der Decken A., 1992, J. Comp. Physiol. B Biochem. Syst. Environ. Physiol., 162, 3510357, 10.1007/BF00260763

Weatherley A.M., 1983, J. Fish Biol., 22, 43060, 10.1111/j.1095-8649.1983.tb04725.x

Thông tin
Thông tin xuất bản

Canadian Journal of Fisheries and Aquatic Sciences

Tập 55 Số 7

1591-1598

Thông tin tác giả