Ionoregulatory aspects of the osmorespiratory compromise during acute environmental hypoxia in 12 tropical and temperate teleosts
In the traditional osmorespiratory compromise, as seen in the hypoxia-intolerant freshwater rainbow trout (Oncorhynchus mykiss), the branchial modifications that occur to improve O
| Autor principal: | Robertson, Lisa M. |
|---|---|
| Outros Autores: | Val, Adalberto Luis, Almeida-Val, Vera Maria Fonseca, Wood, Chris M. |
| Grau: | Artigo |
| Idioma: | English |
| Publicado em: |
Physiological and Biochemical Zoology
2020
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| Assuntos: | |
| Acesso em linha: |
https://repositorio.inpa.gov.br/handle/1/17563 |
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oai:repositorio:1-17563 |
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oai:repositorio:1-17563 Ionoregulatory aspects of the osmorespiratory compromise during acute environmental hypoxia in 12 tropical and temperate teleosts Robertson, Lisa M. Val, Adalberto Luis Almeida-Val, Vera Maria Fonseca Wood, Chris M. Ammonia Cohort Analysis Hypoxia Ion Nitrogen Osmoregulation Oxygen Phylogenetics Respiration Sodium Teleost Temperate Environment Tropical Environment Urea Astronotus Astronotus Ocellatus Carassius Auratus Colossoma Macropomum Colossoma Marcopomum Danio Rerio Fundulus Heteroclitus Hemigrammus Hemigrammus Rhodostomus Hyphessobrycon Bentosi Rosaceus Lepomis Gibbosus Lepomis Macrochirus Moenkhausia Oncorhynchus Mykiss Paracheirodon Axelrodi Salmonidae Teleostei Ammonia Oxygen Potassium Sodium Urea Water Adaptation Animals Breathing Fish Metabolism Osmoregulation Species Difference Adaptation, Physiological Ammonia Animal Fishes Osmoregulation Oxygen Potassium Respiration Sodium Species Specificity Urea Water In the traditional osmorespiratory compromise, as seen in the hypoxia-intolerant freshwater rainbow trout (Oncorhynchus mykiss), the branchial modifications that occur to improve O<inf>2</inf> uptake during hypoxia result in unfavorable increases in the fluxes of ions and water. However, at least one hypoxia-tolerant freshwater species, the Amazonian oscar (Astronotus ocellatus), shows exactly the opposite: decreased branchial flux rates of ions, water, and nitrogenous wastes during acute hypoxia. In order to find out whether the two strategies were widespread, we used a standard 2-h normoxia, 2-h hypoxia (20%–30% saturation), 2-h normoxic recovery protocol to survey 10 other phylogenetically diverse tropical and temperate species. Unidirectional influx and efflux rates of Na+ and net flux rates of K+, ammonia, and urea-N were measured. The flux reduction strategy was seen only in one additional species, the Amazonian tambaqui (Colossoma macropomum), which is similarly hypoxia tolerant and lives in the same ion-poor waters as the oscar. However, five other species exhibited evidence of the increased flux rates typical of the traditional osmorespiratory compromise in the trout: the rosaceu tetra (Hyphessobrycon bentosi rosaceus), the moenkhausia tetra (Moenkhausia diktyota), the bluegill sunfish (Lepomis macrochirus), the zebra fish (Danio rerio), and the goldfish (Carassius auratus). Four other species exhibited no marked flux changes during hypoxia: the cardinal tetra (Paracheirodon axelrodi), the hemigrammus tetra (Hemigrammus rhodostomus), the pumpkinseed sunfish (Lepomis gibbosus), and the Atlantic killifish (Fundulus heteroclitus). Overall, a diversity of strategies exist; we speculate that these may be linked to differences in habitat and/or lifestyle. © 2015 by The University of Chicago. All rights reserved. 2020-06-15T21:48:18Z 2020-06-15T21:48:18Z 2015 Artigo https://repositorio.inpa.gov.br/handle/1/17563 10.1086/681265 en Volume 88, Número 4, Pags. 357-370 Restrito Physiological and Biochemical Zoology |
| institution |
Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional |
| collection |
INPA-RI |
| language |
English |
| topic |
Ammonia Cohort Analysis Hypoxia Ion Nitrogen Osmoregulation Oxygen Phylogenetics Respiration Sodium Teleost Temperate Environment Tropical Environment Urea Astronotus Astronotus Ocellatus Carassius Auratus Colossoma Macropomum Colossoma Marcopomum Danio Rerio Fundulus Heteroclitus Hemigrammus Hemigrammus Rhodostomus Hyphessobrycon Bentosi Rosaceus Lepomis Gibbosus Lepomis Macrochirus Moenkhausia Oncorhynchus Mykiss Paracheirodon Axelrodi Salmonidae Teleostei Ammonia Oxygen Potassium Sodium Urea Water Adaptation Animals Breathing Fish Metabolism Osmoregulation Species Difference Adaptation, Physiological Ammonia Animal Fishes Osmoregulation Oxygen Potassium Respiration Sodium Species Specificity Urea Water |
| spellingShingle |
Ammonia Cohort Analysis Hypoxia Ion Nitrogen Osmoregulation Oxygen Phylogenetics Respiration Sodium Teleost Temperate Environment Tropical Environment Urea Astronotus Astronotus Ocellatus Carassius Auratus Colossoma Macropomum Colossoma Marcopomum Danio Rerio Fundulus Heteroclitus Hemigrammus Hemigrammus Rhodostomus Hyphessobrycon Bentosi Rosaceus Lepomis Gibbosus Lepomis Macrochirus Moenkhausia Oncorhynchus Mykiss Paracheirodon Axelrodi Salmonidae Teleostei Ammonia Oxygen Potassium Sodium Urea Water Adaptation Animals Breathing Fish Metabolism Osmoregulation Species Difference Adaptation, Physiological Ammonia Animal Fishes Osmoregulation Oxygen Potassium Respiration Sodium Species Specificity Urea Water Robertson, Lisa M. Ionoregulatory aspects of the osmorespiratory compromise during acute environmental hypoxia in 12 tropical and temperate teleosts |
| topic_facet |
Ammonia Cohort Analysis Hypoxia Ion Nitrogen Osmoregulation Oxygen Phylogenetics Respiration Sodium Teleost Temperate Environment Tropical Environment Urea Astronotus Astronotus Ocellatus Carassius Auratus Colossoma Macropomum Colossoma Marcopomum Danio Rerio Fundulus Heteroclitus Hemigrammus Hemigrammus Rhodostomus Hyphessobrycon Bentosi Rosaceus Lepomis Gibbosus Lepomis Macrochirus Moenkhausia Oncorhynchus Mykiss Paracheirodon Axelrodi Salmonidae Teleostei Ammonia Oxygen Potassium Sodium Urea Water Adaptation Animals Breathing Fish Metabolism Osmoregulation Species Difference Adaptation, Physiological Ammonia Animal Fishes Osmoregulation Oxygen Potassium Respiration Sodium Species Specificity Urea Water |
| description |
In the traditional osmorespiratory compromise, as seen in the hypoxia-intolerant freshwater rainbow trout (Oncorhynchus mykiss), the branchial modifications that occur to improve O<inf>2</inf> uptake during hypoxia result in unfavorable increases in the fluxes of ions and water. However, at least one hypoxia-tolerant freshwater species, the Amazonian oscar (Astronotus ocellatus), shows exactly the opposite: decreased branchial flux rates of ions, water, and nitrogenous wastes during acute hypoxia. In order to find out whether the two strategies were widespread, we used a standard 2-h normoxia, 2-h hypoxia (20%–30% saturation), 2-h normoxic recovery protocol to survey 10 other phylogenetically diverse tropical and temperate species. Unidirectional influx and efflux rates of Na+ and net flux rates of K+, ammonia, and urea-N were measured. The flux reduction strategy was seen only in one additional species, the Amazonian tambaqui (Colossoma macropomum), which is similarly hypoxia tolerant and lives in the same ion-poor waters as the oscar. However, five other species exhibited evidence of the increased flux rates typical of the traditional osmorespiratory compromise in the trout: the rosaceu tetra (Hyphessobrycon bentosi rosaceus), the moenkhausia tetra (Moenkhausia diktyota), the bluegill sunfish (Lepomis macrochirus), the zebra fish (Danio rerio), and the goldfish (Carassius auratus). Four other species exhibited no marked flux changes during hypoxia: the cardinal tetra (Paracheirodon axelrodi), the hemigrammus tetra (Hemigrammus rhodostomus), the pumpkinseed sunfish (Lepomis gibbosus), and the Atlantic killifish (Fundulus heteroclitus). Overall, a diversity of strategies exist; we speculate that these may be linked to differences in habitat and/or lifestyle. © 2015 by The University of Chicago. All rights reserved. |
| format |
Artigo |
| author |
Robertson, Lisa M. |
| author2 |
Val, Adalberto Luis Almeida-Val, Vera Maria Fonseca Wood, Chris M. |
| author2Str |
Val, Adalberto Luis Almeida-Val, Vera Maria Fonseca Wood, Chris M. |
| title |
Ionoregulatory aspects of the osmorespiratory compromise during acute environmental hypoxia in 12 tropical and temperate teleosts |
| title_short |
Ionoregulatory aspects of the osmorespiratory compromise during acute environmental hypoxia in 12 tropical and temperate teleosts |
| title_full |
Ionoregulatory aspects of the osmorespiratory compromise during acute environmental hypoxia in 12 tropical and temperate teleosts |
| title_fullStr |
Ionoregulatory aspects of the osmorespiratory compromise during acute environmental hypoxia in 12 tropical and temperate teleosts |
| title_full_unstemmed |
Ionoregulatory aspects of the osmorespiratory compromise during acute environmental hypoxia in 12 tropical and temperate teleosts |
| title_sort |
ionoregulatory aspects of the osmorespiratory compromise during acute environmental hypoxia in 12 tropical and temperate teleosts |
| publisher |
Physiological and Biochemical Zoology |
| publishDate |
2020 |
| url |
https://repositorio.inpa.gov.br/handle/1/17563 |
| _version_ |
1787141931032117248 |
| score |
11.755432 |