Influência de um cultivo de camarão sobre o metabolismo bêntico e a qualidade da água

Freitas, Ubiratan de; Niencheski, Luís Felipe Hax; Zarzur, Simoni; Manzolli, Rogério Portantiolo; Vieira, João Pedro Pinheiro; Rosa, Leonardo Cruz da

doi:10.1590/s1415-43662008000300011

Cited by 11 publications

(9 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Other studies (e.g. Freitas et al 2008) also indicate that Si fluxes are not significantly influenced by aquaculture activities and they also find positive flows, similar to those seen in Ferrón et al (2009).…”

Section: Benthic Fluxessupporting

confidence: 57%

“…To study nutrient and oxygen fluxes at the sediment-water interface, measurements were taken in situ using benthic chambers, similar to those used by Freitas et al (2008). Light and dark chambers were used for each incubation, with three replicate samples being taken for each chamber type to minimise the effects of spatial heterogeneity.…”

Section: Benthic Chamber Experiments and Analysismentioning

confidence: 99%

“…Ferrón et al 2009) or lower fluxes (e.g. Nizzoli et al 2007;Freitas et al 2008). We consider that sediment oxygen demand is an index which can be used to estimate the benthic regeneration rate, as well as being a good parameter for assessing how well this industrial activity is being managed.…”

Section: Benthic Fluxesmentioning

confidence: 99%

“…Hall 1991, 1994;Hall et al 1992;Freitas et al 2008;Ferrón et al 2009), or ex situ studies (e.g. Heilskov and Holmer 2001;Nizzoli et al 2007).…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Exchange of nutrients and oxygen across the sediment–water interface below a Sparus aurata marine fish farm in the north-western Mediterranean Sea

et al. 2012

View full text Add to dashboard Cite

Morata, T.; Sospedra, J.; Falco Giaccaglia, SL.; Rodilla Alama, M. (2012). Exchange of nutrients and oxygen across the sediment-water interface below a Sparus aurata marine fish farm in the north-western Mediterranean Sea. Journal of Soils and Sediments. 12(10):1623-1632. doi:10.1007/s11368-012-0581-2. It is the first of its kind to be based on benthic flux data gathered in situ below fish farms for this particular area. Materials and methods Samples were collected on four samplingcampaigns over a 1-year cycle under a Sparus aurata fish farm facility where benthic fluxes were measured in situ using light and dark benthic chambers.Bottom water and sediment samples were also collected. Data were compared to those for a nearby control station.Results and discussion Significant differences were found (ANOVA,

show abstract

Section: Benthic Fluxessupporting

confidence: 57%

Section: Benthic Chamber Experiments and Analysismentioning

confidence: 99%

Section: Benthic Fluxesmentioning

confidence: 99%

“…Hall 1991, 1994;Hall et al 1992;Freitas et al 2008;Ferrón et al 2009), or ex situ studies (e.g. Heilskov and Holmer 2001;Nizzoli et al 2007).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Exchange of nutrients and oxygen across the sediment–water interface below a Sparus aurata marine fish farm in the north-western Mediterranean Sea

et al. 2012

View full text Add to dashboard Cite

show abstract

“…Benthic chambers, similar to those used by Freitas et al (2008) and Morata et al (2012;, were employed for the in situ calculation of the fluxes of DO, NH 4 + , NO 2 -+NO 3 -, PO 4 3-and Si(OH) 4 at the sediment-water interface.…”

Section: Benthic Flux Chamber Experimentsmentioning

confidence: 99%

Benthic fluxes of oxygen and nutrients in sublittoral fine sands in a north-western Mediterranean coastal area

Sospedra

Falco

Morata

et al. 2015

Continental Shelf Research

View full text Add to dashboard Cite

Elsevier Sospedra, J.; Falco, S.; Morata T.; Gadea, I.; Rodilla, M. (2015). Benthic fluxes of oxygen and nutrients in sublittoral fine sands in a north-western Mediterranean coastal area. Continental Shelf Research. 97:32-42. doi:10.1016Research. 97:32-42. doi:10. /j.csr.2015 AbstractTraditionally, benthic metabolism in sublittoral permeable sands have not been widely studied, although these sands can have a direct and transcendental impact in coastal ecosystems. This study aims to determine oxygen and nutrient fluxes at the sediment-water interface and the study of possible interactions among environmental variables and the benthic metabolism in well-sorted fine sands. Eight sampling campaigns were carried out over the annual cycle in the eastern coast of Spain (NW Mediterranean) at 9 meters depth station with permeable bottoms. Water column and sediment samples were collected in order to determine physico-chemical and biological variables.Moreover, in situ incubations were performed to estimate the exchange of dissolved solutes in the sediment-water interface using dark and light benthic chambers. Biochemical compounds at the sediment surface ranged between 160-744 µg g -1 for proteins, 296-702 µg g -1 for carbohydrates, and between 327-1224 µg C g -1 for biopolymeric carbon. Chloroplastic pigment equivalents in sediments were mainly composed by chlorophyll a (1.81-2.89 µg g -1 ).These sedimentary organic descriptors indicated oligotrophic conditions according to the biochemical approach used. In this sense, the most abundant species in the macrobenthic community were sensitive to organic owing to the highest incident irradiance levels (r=0.98, p<0.01) that stimulate microphytobenthic primary production. Microphytobenthos played an important role on benthic metabolism and was the main primary producer in this coastal ecosystem. However, an average annual uptake of 31 mmol m -2 d -1 of oxygen and a release of DIN and Si(OH) 4 (329 and 68 mmol m -2 d -1 respectively) were estimated in these bottoms, which means heterotrophic conditions.

show abstract

Shrimp Farming as a Coastal Zone Challenge in Sergipe State, Brazil: Balancing Goals of Conservation and Social Justice

Lima

Bailey

2014

Environmental Management and Governance

View full text Add to dashboard Cite

Influência de um cultivo de camarão sobre o metabolismo bêntico e a qualidade da água

Cited by 11 publications

References 25 publications

Exchange of nutrients and oxygen across the sediment–water interface below a Sparus aurata marine fish farm in the north-western Mediterranean Sea

Exchange of nutrients and oxygen across the sediment–water interface below a Sparus aurata marine fish farm in the north-western Mediterranean Sea

Benthic fluxes of oxygen and nutrients in sublittoral fine sands in a north-western Mediterranean coastal area

Shrimp Farming as a Coastal Zone Challenge in Sergipe State, Brazil: Balancing Goals of Conservation and Social Justice

Contact Info

Product

Resources

About