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Article: Metabolic and osmoregulatory changes in response to reduced salinities in the red grouper, Epinephelus akaara (Temminck & Schlegel), and the black sea bream, Mylio macrocephalus (Basilewsky)

TitleMetabolic and osmoregulatory changes in response to reduced salinities in the red grouper, Epinephelus akaara (Temminck & Schlegel), and the black sea bream, Mylio macrocephalus (Basilewsky)
Authors
Issue Date1982
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/jembe
Citation
Journal Of Experimental Marine Biology And Ecology, 1982, v. 65 n. 2, p. 139-161 How to Cite?
AbstractRed groupers (Epinephelus akaara Temminck & Schlegel) and black sea breams (Mylio macrocephalus Basilewsky) were transferred from 30‰ into 3, 7, 12, 20, and 30‰ salinity. Fish were sampled at 0, 6, 24, 96, 168 and 336h after transfer. Serum osmolality, glucose, protein, Na+, K+, Ca2+, liver glycogen, liver protein, muscle water and haematocrit were determined. In general, transient disturbances in these variables were observed after transfer. For both species, no tissue hydration was observed upon acclimation to different salinities, whereas a progressive increase in haematocrit value was found as salinity decreased. Liver glycogen of both species, however, was higher in hypo-osmotic salinities. Serum Na+ of the red groupers declined upon acclimation to 7‰ salinity but the opposite was found for the black sea breams. The results indicate that both species are extremely euryhaline, and physiological stress is unlikely to occur within the salinity regime of 7 to 30‰ Comparatively, the black sea bream appears to be a more efficient osmoregulator. © 1982.
Persistent Identifierhttp://hdl.handle.net/10722/179068
ISSN
2015 Impact Factor: 1.796
2015 SCImago Journal Rankings: 1.029

 

DC FieldValueLanguage
dc.contributor.authorWoo, NYSen_US
dc.contributor.authorWu, RSSen_US
dc.date.accessioned2012-12-19T09:51:45Z-
dc.date.available2012-12-19T09:51:45Z-
dc.date.issued1982en_US
dc.identifier.citationJournal Of Experimental Marine Biology And Ecology, 1982, v. 65 n. 2, p. 139-161en_US
dc.identifier.issn0022-0981en_US
dc.identifier.urihttp://hdl.handle.net/10722/179068-
dc.description.abstractRed groupers (Epinephelus akaara Temminck & Schlegel) and black sea breams (Mylio macrocephalus Basilewsky) were transferred from 30‰ into 3, 7, 12, 20, and 30‰ salinity. Fish were sampled at 0, 6, 24, 96, 168 and 336h after transfer. Serum osmolality, glucose, protein, Na+, K+, Ca2+, liver glycogen, liver protein, muscle water and haematocrit were determined. In general, transient disturbances in these variables were observed after transfer. For both species, no tissue hydration was observed upon acclimation to different salinities, whereas a progressive increase in haematocrit value was found as salinity decreased. Liver glycogen of both species, however, was higher in hypo-osmotic salinities. Serum Na+ of the red groupers declined upon acclimation to 7‰ salinity but the opposite was found for the black sea breams. The results indicate that both species are extremely euryhaline, and physiological stress is unlikely to occur within the salinity regime of 7 to 30‰ Comparatively, the black sea bream appears to be a more efficient osmoregulator. © 1982.en_US
dc.languageengen_US
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/jembeen_US
dc.relation.ispartofJournal of Experimental Marine Biology and Ecologyen_US
dc.titleMetabolic and osmoregulatory changes in response to reduced salinities in the red grouper, Epinephelus akaara (Temminck & Schlegel), and the black sea bream, Mylio macrocephalus (Basilewsky)en_US
dc.typeArticleen_US
dc.identifier.emailWu, RSS: rudolfwu@hku.hken_US
dc.identifier.authorityWu, RSS=rp01398en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.scopuseid_2-s2.0-49049139883en_US
dc.identifier.volume65en_US
dc.identifier.issue2en_US
dc.identifier.spage139en_US
dc.identifier.epage161en_US
dc.publisher.placeNetherlandsen_US
dc.identifier.scopusauthoridWoo, NYS=7005683595en_US
dc.identifier.scopusauthoridWu, RSS=7402945079en_US

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