Benthic influence on the metabolism of a shallow tropical lagoon (Lagoa da Barra, Brazil)

Carmouze, Jean-Pierre; Farias, Bias de; Bernardes, Marcelo; Kuroshima, Kátia Naomi

doi:10.1007/978-94-011-5266-2_7

Cited by 4 publications

(5 citation statements)

References 20 publications

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“…These patterns can be driven by either biological or physical processes. Carmouze et al (1998) suggested that the seasonal switch from autotrophy to heterotrophy in several subtropical lagoons in Brazil was driven by low phytoplankton activity in the winter as temperature and irradiance levels became less conducive to growth. Conversely, Reyes & Merino (1991) attributed strong winter heterotrophy in a macrophytedominated tropical lagoon to resuspension and rapid degradation of organic-rich sediments during winter storms.…”

Section: Patterns Of Autotrophy and Heterotrophymentioning

confidence: 99%

“…Most metabolism studies to date have been performed in relatively deep coastal systems where the dominant autotrophs are phytoplankton. In shallow-water systems, benthic photoautotrophy is likely to be a key driver of total metabolism (Kenney et al 1988, D'Avanzo et al 1996, Carmouze et al 1998. Data on the trophic status of shallow lagoons and bays are equivocal, with some showing balanced metabolism or slight autotrophy either on a seasonal or annual basis (Reyes & Merino 1991, D'Avanzo et al 1996, Carmouze et al 1998) and others indicating heterotrophy (Nowicki & Nixon 1985, Flores-Verdugo et al 1988.…”

Section: Introductionmentioning

confidence: 99%

“…In shallow-water systems, benthic photoautotrophy is likely to be a key driver of total metabolism (Kenney et al 1988, D'Avanzo et al 1996, Carmouze et al 1998. Data on the trophic status of shallow lagoons and bays are equivocal, with some showing balanced metabolism or slight autotrophy either on a seasonal or annual basis (Reyes & Merino 1991, D'Avanzo et al 1996, Carmouze et al 1998) and others indicating heterotrophy (Nowicki & Nixon 1985, Flores-Verdugo et al 1988. There is also evidence of both seasonal and interannual variations in patterns of autotrophy and heterotrophy (Kenney et al 1988, Carmouze et al 1998.…”

Section: Introductionmentioning

confidence: 99%

“…Data on the trophic status of shallow lagoons and bays are equivocal, with some showing balanced metabolism or slight autotrophy either on a seasonal or annual basis (Reyes & Merino 1991, D'Avanzo et al 1996, Carmouze et al 1998) and others indicating heterotrophy (Nowicki & Nixon 1985, Flores-Verdugo et al 1988. There is also evidence of both seasonal and interannual variations in patterns of autotrophy and heterotrophy (Kenney et al 1988, Carmouze et al 1998. Clearly, much of this variation is driven by key physical factors such as water residence time (Kenney et al 1988 and by changes in biomass and species composition of the dominant autotrophs (Oviatt et al 1986.…”

Section: Introductionmentioning

confidence: 99%

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Magnitude and variability of benthic and pelagic metabolism in a temperate coastal lagoon

McGlathery¹,

Anderson²,

Tyler³

2001

Mar. Ecol. Prog. Ser.

133

104

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Section: Patterns Of Autotrophy and Heterotrophymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Magnitude and variability of benthic and pelagic metabolism in a temperate coastal lagoon

McGlathery¹,

Anderson²,

Tyler³

2001

Mar. Ecol. Prog. Ser.

133

104

View full text Add to dashboard Cite

“…The flux of benthic nutrients through the sediment-water interface is a result of several microbial processes, such as ammonification, nitrification, denitrification, methanogenesis, oxidative phosphorylation and sulfate reduction, among others (CARMOUZE et al, 1998). Along with these processes, several authors have emphasized the enhanced effects of the bioturbation process performed by benthic macroinvertebrates in the flux of these nutrients (RYSGAARD et al, 1995;ROCHA, 1998;MULSOW and BOUDREAU, 1998).…”

Section: Introductionmentioning

confidence: 99%

Effect of Campsurus notatus on NH⁺₄, DOC Fluxes, O₂ Uptake and Bacterioplankton Production in Experimental Microcosms with Sediment‐Water Interface of an Amazonian Lake Impacted by Bauxite Tailings

Leal¹,

Esteves

Farjalla

et al. 2003

International Review of Hydrobiology

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The aim of this study was to evaluate the influence of Campusurus notatus EATON 1868 (Ephemeroptera: Polimitarciydae) and the impact of bauxite tailings on ammonium (NH 4 + ) and dissolved organic carbon (DOC) fluxes, oxygen uptake and bacterioplankton production in the sediment-water interface of Lake Batata, a shallow Amazonian floodplain lake. Mesocosms were constructed from natural and impacted areas of Lake Batata, to reproduce the sediment-water interface. The cores were incubated with 0 to 2,388 ind m -2 of Campsurus notatus nymphs, and the changes in NH 4 + , DOC, O 2 concentration and bacterioplankton production in the overlying water column were measured. Ammonium efflux (F = 9.8, p < 0.05, multiple regression) and oxygen uptake (F = 11.8, p < 0.05) showed a significant correlation with the density of C. notatus in the cores with natural sediment. No differences on DOC release were observed in cores with natural or impacted sediment. In the cores incubated with natural sediment and nymphs of C. notatus, a significant increase (Two-way ANOVA, p < 0.05) in bacterial production (0.44 µg C l -1 h -1 ) was observed after 3 hours of incubation. In cores incubated with sediment impacted by bauxite tailings, there was no difference in bacterial production with and without C. notatus. We conclude that C. notatus is an important bioturbator in Lake Batata, increasing the turnover rate of nitrogen (NH 4 + ) at the sediment-water interface and bacterial production in cores incubated with natural sediment. It is also clear that bauxite tailings reduce the nutrients turnover rates in impacted regions of Lake Batata and influence bacterial production. Internat. Rev. Hydrobiol. 88 2003 2 167-178

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Physical variables, carbon cycling and primary producer couplings in a shallow tropical lagoon (Barra Lagoon, Brazil)

Carmouze¹,

Domingos

2001

Aquatic Ecosystem Health &Amp; Management

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The Barra Lagoon (28°S and 43°W, 7 km², mean depth, 1m, salinities from 3 to 12 ) was investigated between October 1990 and August 1993. We report here a first synthesis of organic carbon metabolism, the phytoplankton community and their mutual interactions. Barra Lagoon exhibited a hypereutrophic state (high values of phytoplanktonic biomasses, diurnal metabolic rates, particulate and dissolved organic carbon concentrations). As with most shallow lagoons, Barra Lagoon was very sensitive to short-term meteorological changes which induced high day to day changes in organic carbon metabolism and severely dampened seasonal trends. But surprisingly, when consistent structural changes occurred, its total organic carbon metabolism was rapidly dampened by shifts from pelagic to benthic carbon metabolism and vice-versa. Seasonal auto/heterotrophic shifts of the ecosystem (generally autotrophy in summer and heterotrophy in winter) were not always verified. They were more strongly linked to growing and degeneration phases of pelagic and benthic algae. Biological activity was mainly controlled by the rate of nutrient in situ regeneration (low nutrient concentrations in water). In these conditions, small-size phytoplankton species predominated, as they are more efficient than large forms in sharing nutritive resources. Cyanophyceae were ecologically favoured by low transparency, nitrogen limitation and high nutrients regenerated in the water column, while small species of Dinophyceae and Chrysophyceae were promoted by a higher photic layer, nitrogen content and benthic nutrient regeneration. Extra input of nutrients (proceeding from fish-kill in February 1991, from decomposition of macro-algae after a temporary phase of colonization in August-September 1992, and from abundant rainfalls) induced an ephemeral growth of larger species at the expense of Cyanophyceae. Cyanophyceae lost their dominance also when temperature fell to 20°C.

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Benthic influence on the metabolism of a shallow tropical lagoon (Lagoa da Barra, Brazil)

Cited by 4 publications

References 20 publications

Magnitude and variability of benthic and pelagic metabolism in a temperate coastal lagoon

Magnitude and variability of benthic and pelagic metabolism in a temperate coastal lagoon

Effect of Campsurus notatus on NH⁺₄, DOC Fluxes, O₂ Uptake and Bacterioplankton Production in Experimental Microcosms with Sediment‐Water Interface of an Amazonian Lake Impacted by Bauxite Tailings

Physical variables, carbon cycling and primary producer couplings in a shallow tropical lagoon (Barra Lagoon, Brazil)

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Benthic influence on the metabolism of a shallow tropical lagoon (Lagoa da Barra, Brazil)

Cited by 4 publications

References 20 publications

Magnitude and variability of benthic and pelagic metabolism in a temperate coastal lagoon

Magnitude and variability of benthic and pelagic metabolism in a temperate coastal lagoon

Effect of Campsurus notatus on NH+4, DOC Fluxes, O2 Uptake and Bacterioplankton Production in Experimental Microcosms with Sediment‐Water Interface of an Amazonian Lake Impacted by Bauxite Tailings

Physical variables, carbon cycling and primary producer couplings in a shallow tropical lagoon (Barra Lagoon, Brazil)

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Effect of Campsurus notatus on NH⁺₄, DOC Fluxes, O₂ Uptake and Bacterioplankton Production in Experimental Microcosms with Sediment‐Water Interface of an Amazonian Lake Impacted by Bauxite Tailings