The effect of salinity and ion composition on oxygen consumption and nitrogen excretion of Macrobrachium rosenbergii (de man)

S. Stern; A. Borut; D. Cohen

doi:10.1016/0300-9629(84)90428-6

The effect of salinity and ion composition on oxygen consumption and nitrogen excretion of Macrobrachium rosenbergii (de man)

S. Stern^*
, A. Borut
, D. Cohen

^*Corresponding author for this work

Alexander Silberman Institute of Life Sciences

Research output: Contribution to journal › Article › peer-review

48 Scopus citations

Abstract

1. 1. Oxygen consumption and nitrogen excretion rates of Macrobrachium rosenbergii were recorded in media of varying salinities and ion compositions (Mevo Hamma, Yahel, Elat-continental water; and 15 and 24%. seawater dilutions). 2. 2. Oxygen consumption rates were not significantly different (P > 0.05) with the exclusion of Yahel having a metabolic rate of 0.258ml O₂/gfw/hr which was significantly different from the other experimental media at the P ≲- 0.05 level. 3. 3. Nitrogen excretion rates were lowest in prawns adapted to Yahel water, 0.0188mg NH₄-N/gfw/hr and increased with salinity to 0.0494mg NH₄-N/gfw/hr in 24%. 4. 4. The O: N ratios ranged from 12.24 to 22.65 indicating that in dilute media (Mevo Hamma and Yahel) relative to saline media (15%, Elat and 24%) more lipids and carbohydrates are utilized as an energy substrate while the latter group increased protein catabolism.

Original language	English
Pages (from-to)	271-274
Number of pages	4
Journal	Comparative Biochemistry and Physiology -Part A : Molecular and Integrative Physiology
Volume	79
Issue number	2
DOIs	https://doi.org/10.1016/0300-9629(84)90428-6
State	Published - 1984

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title = "The effect of salinity and ion composition on oxygen consumption and nitrogen excretion of Macrobrachium rosenbergii (de man)",

abstract = "1. 1. Oxygen consumption and nitrogen excretion rates of Macrobrachium rosenbergii were recorded in media of varying salinities and ion compositions (Mevo Hamma, Yahel, Elat-continental water; and 15 and 24\%. seawater dilutions). 2. 2. Oxygen consumption rates were not significantly different (P > 0.05) with the exclusion of Yahel having a metabolic rate of 0.258ml O2/gfw/hr which was significantly different from the other experimental media at the P ≲- 0.05 level. 3. 3. Nitrogen excretion rates were lowest in prawns adapted to Yahel water, 0.0188mg NH4-N/gfw/hr and increased with salinity to 0.0494mg NH4-N/gfw/hr in 24\%. 4. 4. The O: N ratios ranged from 12.24 to 22.65 indicating that in dilute media (Mevo Hamma and Yahel) relative to saline media (15\%, Elat and 24\%) more lipids and carbohydrates are utilized as an energy substrate while the latter group increased protein catabolism.",

author = "S. Stern and A. Borut and D. Cohen",

year = "1984",

doi = "10.1016/0300-9629(84)90428-6",

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N2 - 1. 1. Oxygen consumption and nitrogen excretion rates of Macrobrachium rosenbergii were recorded in media of varying salinities and ion compositions (Mevo Hamma, Yahel, Elat-continental water; and 15 and 24%. seawater dilutions). 2. 2. Oxygen consumption rates were not significantly different (P > 0.05) with the exclusion of Yahel having a metabolic rate of 0.258ml O2/gfw/hr which was significantly different from the other experimental media at the P ≲- 0.05 level. 3. 3. Nitrogen excretion rates were lowest in prawns adapted to Yahel water, 0.0188mg NH4-N/gfw/hr and increased with salinity to 0.0494mg NH4-N/gfw/hr in 24%. 4. 4. The O: N ratios ranged from 12.24 to 22.65 indicating that in dilute media (Mevo Hamma and Yahel) relative to saline media (15%, Elat and 24%) more lipids and carbohydrates are utilized as an energy substrate while the latter group increased protein catabolism.

AB - 1. 1. Oxygen consumption and nitrogen excretion rates of Macrobrachium rosenbergii were recorded in media of varying salinities and ion compositions (Mevo Hamma, Yahel, Elat-continental water; and 15 and 24%. seawater dilutions). 2. 2. Oxygen consumption rates were not significantly different (P > 0.05) with the exclusion of Yahel having a metabolic rate of 0.258ml O2/gfw/hr which was significantly different from the other experimental media at the P ≲- 0.05 level. 3. 3. Nitrogen excretion rates were lowest in prawns adapted to Yahel water, 0.0188mg NH4-N/gfw/hr and increased with salinity to 0.0494mg NH4-N/gfw/hr in 24%. 4. 4. The O: N ratios ranged from 12.24 to 22.65 indicating that in dilute media (Mevo Hamma and Yahel) relative to saline media (15%, Elat and 24%) more lipids and carbohydrates are utilized as an energy substrate while the latter group increased protein catabolism.

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ER -

The effect of salinity and ion composition on oxygen consumption and nitrogen excretion of Macrobrachium rosenbergii (de man)

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