Dissolved oxygen dynamics in Ria Formosa Lagoon (South Portugal) - A real time monitoring station observatory

Cravo, Alexandra; Rosa, Alexandra; Jacob, José; Correia, Carla

doi:10.1016/j.marchem.2020.103806

Cited by 19 publications

(12 citation statements)

References 56 publications

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“…A significant positive correlation was found between temperature and salinity (r = 0.1715; p( uncorr ) = 0). Regarding DO, an inverse relationship was found with temperature (r = −0.1745; p( uncorr ) = 0) and salinity (r = −0.2887; p( uncorr ) = 0) and this is in accordance with the literature which states that an increase in water temperature and salinity decreases DO solubility [35,59,84], whereas a positive correlation was found with pH (y = 1.4673 × −4.8995; r = 0.1897; p( uncorr ) = 0), likely due to the decrease in CO 2 during photosynthetic processes that increase both DO and pH. Finally, it was found a significant inverse relationship with mean depth (r = −0.5242; p( uncorr ) = 0.0020),…”

Section: Dissolved Oxygensupporting

confidence: 90%

“…In addition, field work also disturbs natural ecosystems such as the Marano and Grado Lagoon. The use of permanent sampling equipment (i.e., anchored stations, surface floating modules or buoys) is a helpful approach to investigate DO level oscillations with low sampling time interval (from minutes to hours) and to cover the natural day/night cycles [31][32][33][34][35].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

The SHAPE Project: An Innovative Approach to Understanding Seasonal and Diel Dissolved Oxygen Dynamics in the Marano and Grado Lagoon (Adriatic Sea) under the WFD/2000/60/CE

Pittaluga

Aleffi

Bettoso

et al. 2022

JMSE

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Dissolved oxygen (DO) is a key element for the survival of marine organisms and is a supporting element in the current Water Framework Directive (WFD). DO deficiency is a common event that occurs in coastal environments such as estuaries and lagoons, but a long-term DO database that helps detect daily and seasonal oscillations is difficult to obtain with commonly used sampling and analytical procedures. In this work, a network of multi-parametric probes was deployed in the Marano and Grado Lagoon (northern Adriatic Sea, Italy) in order to obtain a dataset from the continuous monitoring of DO and complementary parameters. DO showed a high degree of variability both in terms of spatial and seasonal distribution and was dependent on solar radiation and water temperature. During the summer and in areas characterised by scarce water renewal, DO was below the threshold set as the minimum requirement for aquatic life, thus some water bodies (WBs) were classified as moderate sensu WFD. The inputs of freshwater discharge from inland and marine waters during tides are, however, able to well oxygenate most of the lagoon. These results will be useful in supporting the management and protection of this vulnerable environment.

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Section: Dissolved Oxygensupporting

confidence: 90%

Section: Introductionmentioning

confidence: 99%

The SHAPE Project: An Innovative Approach to Understanding Seasonal and Diel Dissolved Oxygen Dynamics in the Marano and Grado Lagoon (Adriatic Sea) under the WFD/2000/60/CE

Pittaluga

Aleffi

Bettoso

et al. 2022

JMSE

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“…The YSCWM is vertically stratified in summer and lacks substantial vertical exchange between cold bottom‐waters and the upper mixed layer due to the strong thermocline. Therefore, dissolved oxygen is generally low due to the weak currents during neap tides and high due to the strong currents during spring tides (Casila et al., 2019; Cravo et al., 2020; Gale et al., 2006).…”

Section: Discussionmentioning

confidence: 99%

“…10.1029/2020JC016696 9 of 16 upper mixed layer due to the strong thermocline. Therefore, dissolved oxygen is generally low due to the weak currents during neap tides and high due to the strong currents during spring tides (Casila et al, 2019;Cravo et al, 2020;Gale et al, 2006).…”

Section: Time Lag Between Hydrodynamic Processes and Pacific Cod Growthmentioning

confidence: 99%

Tidally Induced Temporal Variations in Growth of Young‐of‐the‐Year Pacific Cod in the Yellow Sea

Jiang

et al. 2021

JGR Oceans

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The Pacific cod (Gadus microcephalus) is a typical cold-water demersal fish species that is widely distributed in the North Pacific. It is an important commercial species, and the global capture of Pacific cod exhibits large fluctuations, with a recovering trend in recent decades (FAO, 2018). The Yellow Sea is a wide continental shelf sea in the western North Pacific, and is close to the southern limit of the distribution of Pacific cod. Cold-water species can inhabit this temperate ocean because the Yellow Sea Cold Water Mass (YSCWM) is widely distributed and has a temperature of <10°C in summer (Tang, 2012), which is just within the optimal temperature range of Pacific cod (Alderdice & Forrester, 1971). The YSCWM is covered by an intense thermocline, with a temperature difference above and below the thermocline of >15°C in this relatively shallow continental shelf sea (depth < 100 m) (Zhang et al., 2008). Even with some small annual

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“…Clams were divided into four 250 L recirculated water systems (RAS), equipped with a filtration system and a UV-c unit (25 W UV-c, 6.000 µW s/cm 2 ) and a temperature control unit (composed of a 300-W submergible heater and a 1 2 HP chiller, controlled by a thermostat), with similar salinity (35 ± 1), but different water temperatures (10, 15, 20 and 25 • C). This range of temperatures is representative of the seasonal fluctuations in water temperature to which clams are being subject in recent years at Ria Formosa [52], simulating, at the same time, temperature shifts as occurs during extreme weather events. R. decussatus individuals were let to acclimate to the different temperatures for 24 h. After this period, clams were moved to experimental RAS and divided into two treatments: (I) tanks at 10, 15, 20 and 25 • C water temperature in the absence of MWCNTs-COOH contamination; (II) tanks at 10, 15, 20 and 25 • C in the presence of MWCNTs-COOH (0.01 mg/L).…”

Section: Sampling and Laboratory Conditionsmentioning

confidence: 99%

Environmental Fate of Multistressors on Carpet Shell Clam Ruditapes decussatus: Carbon Nanoparticles and Temperature Variation

et al. 2020

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Ruditapes decussatus is a native clam from the Southern Europe and Mediterranean area, relevant to the development of sustainable aquaculture in these regions. As sessile organisms, bivalves are likely to be exposed to chemical contaminations and environmental changes in the aquatic compartment and are widely used as bioindicator species. Carbon-based nanomaterials (CNTs) use is increasing and, consequently, concentrations of these contaminants in aquatic systems will rise. Therefore, it is imperative to assess the potential toxic effects of such compounds and the interactions with environmental factors such as water temperature. For this, we exposed R. decussatus clams to four different water temperatures (10, 15, 20 and 25 °C) in the presence or absence of CNTs for 96 h. Different parameters related with oxidative stress status, aerobic metabolism, energy reserves and neurotoxicity were evaluated. The relationship and differences among water temperatures and contamination were highlighted by principal coordinates analysis (PCO). CNTs exposure increased oxidative damage as protein carbonylation (PC) in exposed clams at 10 °C. Higher temperatures (25 °C) were responsible for the highest redox status (ratio between reduced and oxidized glutathione, GSH/GSSG) observed as well as neurotoxic effects (acetylcholinesterase—AChE activity). Antioxidant defenses were also modulated by the combination of CNTs exposure with water temperatures, with decrease of glutathione peroxidase (GR) activity at 15 °C and of glutathione S-transferases (GSTs) activity at 20 °C, when compared with unexposed clams. Clams energy reserves were not altered, probably due to the short exposure period. Overall, the combined effects of CNTs exposure and increasing water temperatures can impair R. decussatus cellular homeostasis inducing oxidative stress and damage.

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Dissolved oxygen dynamics in Ria Formosa Lagoon (South Portugal) - A real time monitoring station observatory

Cited by 19 publications

References 56 publications

The SHAPE Project: An Innovative Approach to Understanding Seasonal and Diel Dissolved Oxygen Dynamics in the Marano and Grado Lagoon (Adriatic Sea) under the WFD/2000/60/CE

The SHAPE Project: An Innovative Approach to Understanding Seasonal and Diel Dissolved Oxygen Dynamics in the Marano and Grado Lagoon (Adriatic Sea) under the WFD/2000/60/CE

Tidally Induced Temporal Variations in Growth of Young‐of‐the‐Year Pacific Cod in the Yellow Sea

Environmental Fate of Multistressors on Carpet Shell Clam Ruditapes decussatus: Carbon Nanoparticles and Temperature Variation

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