Net ion fluxes in the facultative air-breather Hoplosternum littorale (tamoata) and the obligate air-breather Arapaima gigas (pirarucu) exposed to different Amazonian waters
Fishes that live in the Amazon environment may be exposed to several kinds of water: black water (BW), acidic black water (pH 3.5) (ABW) and white water (WW), among others. The aim of the present study was to analyze net ion fluxes in the facultative air-breather Hoplosternum littorale (tamoata) and...
| Autor principal: | Baldisserotto, Bernardo |
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| Outros Autores: | Copatti, Carlos Eduardo, Gomes, Levy de Carvalho, Chagas, Edsandra Campos, Brinn, Richard Philip, Roubach, Rodrigo |
| Grau: | Artigo |
| Idioma: | English |
| Publicado em: |
Fish Physiology and Biochemistry
2020
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| Acesso em linha: |
https://repositorio.inpa.gov.br/handle/1/18589 |
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oai:repositorio:1-18589 |
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oai:repositorio:1-18589 Net ion fluxes in the facultative air-breather Hoplosternum littorale (tamoata) and the obligate air-breather Arapaima gigas (pirarucu) exposed to different Amazonian waters Baldisserotto, Bernardo Copatti, Carlos Eduardo Gomes, Levy de Carvalho Chagas, Edsandra Campos Brinn, Richard Philip Roubach, Rodrigo Chloride Ion Potassium Sodium Animals Catfish Chemistry Fish Metabolism Ph Physiology River Animal Catfishes Chlorides Fishes Hydrogen-ion Concentration Ions Potassium Rivers Sodium Arapaima Gigas Hoplosternum Littorale Pisces Fishes that live in the Amazon environment may be exposed to several kinds of water: black water (BW), acidic black water (pH 3.5) (ABW) and white water (WW), among others. The aim of the present study was to analyze net ion fluxes in the facultative air-breather Hoplosternum littorale (tamoata) and the obligate air-breather Arapaima gigas (pirarucu) exposed to different types of water. Fishes were acclimated in well water and later placed in individual chambers containing one type of water for ion flux measurements. After 4 h, the water in the chambers was replaced by a different type of water. The transfer of both species to ABW (independent of previous water exposure) increased net ion loss. Tamoatas transferred from ABW to BW or WW presented a net ion influx, but pirarucus showed only small changes on net ion efflux. These results allow us to conclude that tamoatas and pirarucus present differences in terms of ion regulation but that the general aspects of the ion flux are similar: (1) exposure to ABW led to net ion loss; (2) transfer from BW to WW or vice-versa induced only minor changes on net ion fluxes. These observations demonstrate that any osmoregulatory difficulties encountered by either species during changes between these latter two waters can be easily overcome. © Springer Science+Business Media B.V. 2008. 2020-06-15T22:02:12Z 2020-06-15T22:02:12Z 2008 Artigo https://repositorio.inpa.gov.br/handle/1/18589 10.1007/s10695-008-9200-y en Volume 34, Número 4, Pags. 405-412 Restrito Fish Physiology and Biochemistry |
| institution |
Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional |
| collection |
INPA-RI |
| language |
English |
| topic |
Chloride Ion Potassium Sodium Animals Catfish Chemistry Fish Metabolism Ph Physiology River Animal Catfishes Chlorides Fishes Hydrogen-ion Concentration Ions Potassium Rivers Sodium Arapaima Gigas Hoplosternum Littorale Pisces |
| spellingShingle |
Chloride Ion Potassium Sodium Animals Catfish Chemistry Fish Metabolism Ph Physiology River Animal Catfishes Chlorides Fishes Hydrogen-ion Concentration Ions Potassium Rivers Sodium Arapaima Gigas Hoplosternum Littorale Pisces Baldisserotto, Bernardo Net ion fluxes in the facultative air-breather Hoplosternum littorale (tamoata) and the obligate air-breather Arapaima gigas (pirarucu) exposed to different Amazonian waters |
| topic_facet |
Chloride Ion Potassium Sodium Animals Catfish Chemistry Fish Metabolism Ph Physiology River Animal Catfishes Chlorides Fishes Hydrogen-ion Concentration Ions Potassium Rivers Sodium Arapaima Gigas Hoplosternum Littorale Pisces |
| description |
Fishes that live in the Amazon environment may be exposed to several kinds of water: black water (BW), acidic black water (pH 3.5) (ABW) and white water (WW), among others. The aim of the present study was to analyze net ion fluxes in the facultative air-breather Hoplosternum littorale (tamoata) and the obligate air-breather Arapaima gigas (pirarucu) exposed to different types of water. Fishes were acclimated in well water and later placed in individual chambers containing one type of water for ion flux measurements. After 4 h, the water in the chambers was replaced by a different type of water. The transfer of both species to ABW (independent of previous water exposure) increased net ion loss. Tamoatas transferred from ABW to BW or WW presented a net ion influx, but pirarucus showed only small changes on net ion efflux. These results allow us to conclude that tamoatas and pirarucus present differences in terms of ion regulation but that the general aspects of the ion flux are similar: (1) exposure to ABW led to net ion loss; (2) transfer from BW to WW or vice-versa induced only minor changes on net ion fluxes. These observations demonstrate that any osmoregulatory difficulties encountered by either species during changes between these latter two waters can be easily overcome. © Springer Science+Business Media B.V. 2008. |
| format |
Artigo |
| author |
Baldisserotto, Bernardo |
| author2 |
Copatti, Carlos Eduardo Gomes, Levy de Carvalho Chagas, Edsandra Campos Brinn, Richard Philip Roubach, Rodrigo |
| author2Str |
Copatti, Carlos Eduardo Gomes, Levy de Carvalho Chagas, Edsandra Campos Brinn, Richard Philip Roubach, Rodrigo |
| title |
Net ion fluxes in the facultative air-breather Hoplosternum littorale (tamoata) and the obligate air-breather Arapaima gigas (pirarucu) exposed to different Amazonian waters |
| title_short |
Net ion fluxes in the facultative air-breather Hoplosternum littorale (tamoata) and the obligate air-breather Arapaima gigas (pirarucu) exposed to different Amazonian waters |
| title_full |
Net ion fluxes in the facultative air-breather Hoplosternum littorale (tamoata) and the obligate air-breather Arapaima gigas (pirarucu) exposed to different Amazonian waters |
| title_fullStr |
Net ion fluxes in the facultative air-breather Hoplosternum littorale (tamoata) and the obligate air-breather Arapaima gigas (pirarucu) exposed to different Amazonian waters |
| title_full_unstemmed |
Net ion fluxes in the facultative air-breather Hoplosternum littorale (tamoata) and the obligate air-breather Arapaima gigas (pirarucu) exposed to different Amazonian waters |
| title_sort |
net ion fluxes in the facultative air-breather hoplosternum littorale (tamoata) and the obligate air-breather arapaima gigas (pirarucu) exposed to different amazonian waters |
| publisher |
Fish Physiology and Biochemistry |
| publishDate |
2020 |
| url |
https://repositorio.inpa.gov.br/handle/1/18589 |
| _version_ |
1787143367976550400 |
| score |
11.674684 |