. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. TROUT TROPHIC RELATIONS 147 400i— 300 200 cc o X CD O CC 100 G SEAWA1ER A FRESHWATER. 10 Day of Starvation during which waste. N, collected FIGURE 4. The nitrogen excretion of freshwater post-smolt and saltwater fish (July to August) over an initial ten day starvation period. the present experiments. Taking the larger factor into account, the assimilation of the freshwater fish could he as high as for the freshwater fish and 81% for the saltwater fish. This correction increases the proportion of excreted nitrogen by an
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. TROUT TROPHIC RELATIONS 147 400i— 300 200 cc o X CD O CC 100 G SEAWA1ER A FRESHWATER. 10 Day of Starvation during which waste. N, collected FIGURE 4. The nitrogen excretion of freshwater post-smolt and saltwater fish (July to August) over an initial ten day starvation period. the present experiments. Taking the larger factor into account, the assimilation of the freshwater fish could he as high as for the freshwater fish and 81% for the saltwater fish. This correction increases the proportion of excreted nitrogen by an amount equivalent to the increased assimilation. Values for nitrogen reten- tion in the nitrogen balance equation are unaffected. Nitrogen balance A ration gives a trophic input of 578 mg N/kg wet weight of fish/clay, of which 452 mg N are assimilated in the freshwater fish and 446 mg N in the saltwater fish. If the nitrogen excretion values on the first day of starvation (Table III) are taken as representative of the nitrogen loss of a fully fed fish, then the difference between assimilation and excretion and the nitrogen retained for protein elaboration or growth is: 89 mg N/kg in the post-smolt freshwater fish (July to August), 136. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report 1907/08-1952; Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred Clarence, 1890-1983. Woods Hole, Mass. : Marine Biological Laboratory
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
