Blood proteins of the Antarctic hemoglobin-free fish, Neopagetopsis ionah.
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منابع مشابه
Oxygen consumption in an antarctic hemoglobin-free fish, Pagetopsis macropterus, and in three species of Notothenia.
1. The rate of oxygen consumption was determined in an Antarctic hemoglobin-free fish, Pagetopsis macropterus, and in three species of Notothenia, all of which have hemoglobin. In P. macropterus, the consumption at 0C ranged from 0.012 to 0.022 ml O2/g per hr, one-half to one-quarter of that in other fishes. In all cases, the rate was little affected by the oxygen tension in the water when it w...
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متن کاملAntarctic Fish Blood: Respiratory Properties and the Effects of Thermal Acclimation
1. The effects of thermal acclimation on whole blood oxygen affinity were examined in the antarctic fish Pagothenia borchgrevinki. 2. 4-5 °C-acclimated fish had a P50 value of 26-7 mrnHg at pH 8*1, compared to 20-7 mmHg for — l-5°C-acclimated fish. The apparent heat of oxygenation, AH = — 26-7kJmol~, is comparable to values for temperate species. 3. Warm-acclimation was followed by an increased...
متن کاملWhen bad things happen to good fish: the loss of hemoglobin and myoglobin expression in Antarctic icefishes.
The Antarctic icefishes (Family Channichthyidae) provide excellent examples of unique traits that can arise in a chronically cold and isolated environment. Their loss of hemoglobin (Hb) expression, and in some cases, loss of myoglobin (Mb) expression, has taught us much about the function of these proteins. Although absences of the proteins are fixed traits in icefishes, the losses do not appea...
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ژورنال
عنوان ژورنال: NIPPON SUISAN GAKKAISHI
سال: 1980
ISSN: 1349-998X,0021-5392
DOI: 10.2331/suisan.46.1027