Results 191 to 200 of about 3,077 (230)
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Osmoregulation in Some Freshwater Prawns
Journal of Experimental Biology, 1957ABSTRACT A freshwater prawn, Palaemonetes antennarius, from Italy, is shown to have a different level of salt concentration in the blood and urine compared with that of the brackish water P. varians and Palaemon longirostris in Britain.
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An improved harvesting net for freshwater prawns
Aquacultural Engineering, 1982Abstract In Hawaii, because of the transformation from a small-farm operation into fairly large aquacultural enterprises, the need to develop an improved harvesting net for fresh-water prawns has been developed. The design/operation of a mechanized net and the success of the full-scale prototype for the industry is detailed.
Michael R. Williamson, Jaw-Kai Wang
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Responses of freshwater prawn,Macrobrachium rosenbergii, to chemical attractants
Journal of Chemical Ecology, 1987Chemoreception in the adults of the freshwater prawnMacrobrachium rosenbergii was investigated under controlled laboratory conditions, using behavioral assays. Tests were carried out on groups, as well as on individuals, all at their intermolt stages of the molt cycle, and prestarved for three to four days.
S, Harpaz, D, Kahan, R, Galun, I, Moore
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Oxytetracycline Residues in Giant Freshwater Prawn (Macrobrachium rosenbergii)
Journal of Agricultural and Food Chemistry, 2001The distribution of oxytetracycline (OTC) in male and female Macrobrachium rosenbergii was examined after the prawns had been given medicated feed containing OTC at levels of 2.5 and 5.0 g/kg of feed for 1 week and nonmedicated feed thereafter. OTC levels in the heads of both male and female prawns were consistently higher than in the muscles.
S, Brillantes +3 more
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Nutritional properties of the freshwater rocky prawn and Africa river prawns
Bowen Journal of Agriculture, 2008No Abstract. Bowen Journal of Agriculture Vol. 3 (2) 2006: pp.
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Freshwater Crabs and Prawns of Singapore
1990Essays in zoology : papers commemorating the 40th anniversary of the Department of Zoology, National University of ...
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Intestinal electrophysiology and transmural ion transport in freshwater prawns
American Journal of Physiology-Cell Physiology, 1980A steady-state transmural potential difference of 1.63 +/- 0.26 mV (mean +/- SE, lumen negative) is recorded across the isolated, perfused intestine of the freshwater prawn, Macrobrachium rosenbergii, when saline approximating hemolymph in composition is present on both surfaces of the preparation.
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Karyological studies on the freshwater prawn Macrobrachium rosenbergii
Aquaculture, 1991Abstract A cytogenetic study was conducted in the freshwater prawn, Macrobrachium rosenbergii , by preparing metaphase chromosome spreads from the tissue of the antennal gland and testis. Chromosomal analysis of the antennal gland in males revealed a modal diploid chromosome number of 2n = 118.
Claudio Cha´vez Justo +3 more
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Gametogenesis in the freshwater prawn, Macrobrachium lamerrii.
Acta physiologica Hungarica, 1984Histological changes of the female and male gonads were studied and their relation to reproductive cycle is described. Ovary showed distinct changes during the course of its reproductive cycle. Maturational changes did not occur simultaneously in all follicles of the ovary.
R, Sarojini, G, Gyananath
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A mechanized seine harvest system for freshwater prawns
Aquacultural Engineering, 1986Abstract This paper describes new developments in a selective harvest system for freshwater prawns. The net system can be pulled either mechanically or by hand. It produced a consistently high harvest efficiency and yield. The system included a low cost, light weight prototype boom designed to replace the harvest crew in the pond.
Thomas M. Losordo +3 more
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