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The haemoglobins of the fish Sarotherodon mossambicus (Peters): functional significance and ontogenetic changes
Author(s) -
Pérez Julio E.,
Maclean Norman
Publication year - 1976
Publication title -
journal of fish biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.672
H-Index - 115
eISSN - 1095-8649
pISSN - 0022-1112
DOI - 10.1111/j.1095-8649.1976.tb04693.x
Subject(s) - biology , ontogeny , zoology , larva , oreochromis mossambicus , fish <actinopterygii> , hemoglobin , ecology , biochemistry , fishery , tilapia , genetics
The haemoglobin patterns of adult and young larval stages of the fish species Sarotherodon mossambicus were determined by polyacrylamide–gel electrophoresis. Oxygen affinity determinations of the adult and larval haemolysates and of each haemoglobin component of the adult indicates that the affinity changes with the pH, temperature and osmotic pressure. The possible evolutionary significance of the multiple haemoglobins is discussed. The electrophoretic pattern of adult S. leucostictus , a species closely related to S. mossambicus was also determined and used as a comparative study.