Heavy Metal Bioaccumulation in Brown Algae Cystoseira compressa in Algerian Coasts, Mediterranean Sea

Benfares, Redhouane; Seridi, Halima; Belkacem, Yasmin; Inal, Ahmed

doi:10.1007/s40710-015-0075-5

Cited by 20 publications

(9 citation statements)

References 15 publications

(13 reference statements)

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“…Moreover, the high abundance and biomass of phytoplankton in wastewater reservoirs (5891.7-6287.3 million cells/m 3 and 4.8-5.6 g/m 3 ) in the summer of 2017 [51] were one of the significant factors contributing to the purification of the water column of Sorbulak and ponds from heavy metals. It is known that the absorption of heavy metals by algae can be more intense than the accumulation in bottom sediments [60,61].…”

Section: Chemical Variablesmentioning

confidence: 99%

Planktonic Invertebrates in the Assessment of Long-Term Change in Water Quality of the Sorbulak Wastewater Disposal System (Kazakhstan)

Krupa

Barınova

Romanova

et al. 2020

Water

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The multicomponent composition of wastewater makes it challenging to assess its quality objectively, but the last one is a prerequisite for the safe re-use of wastewater. The solution to this problem should be aimed at finding criteria that make it possible to increase the objectivity of assessing the water quality of reservoirs with multicomponent pollution. This work analyzes the water quality of the Sorbulak wastewater disposal system in the summer of 2017, based on chemical variables and zooplankton structure and assess the long-term changes in the water quality of Sorbulak. According to the Kruskal–Wallis test, in 2017, the differences between the studied water bodies in the content of nutrients and heavy metals were mostly insignificant. From 2000–2002 to 2017, nitrate, nitrite nitrogen, and heavy metals in Sorbulak significantly decreased. Zooplankton communities consisted of a relatively small number of eurybiontic species resistant to environmental factors. The variability of the quantitative variables of zooplankton was associated with the nutrients. Males dominated the population of the cyclopoid copepods Acanthocyclops trajani. In 2000–2002 individuals with morphological anomalies were found in cyclopoid copepods populations, but were absent in 2017. The appearance of individuals with morphological anomalies was associated with copper or lead. The chemical data and structure of zooplankton communities indicated that the toxic pollution of Sorbulak decreased by 2017 compared to 2000–2002. Our results demonstrate that the structural variables of zooplankton communities could be successfully used to assess the water quality of water bodies with mixed pollution. We recommend using not only the traditional set of biological variables (abundance, biomass, diversity indices, and the average mass of an individual), but also data on the structure of species dominance, the sex structure of copepod populations, and the presence of individuals with morphological anomalies for monitoring of water bodies with mixed pollution.

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Section: Chemical Variablesmentioning

confidence: 99%

Planktonic Invertebrates in the Assessment of Long-Term Change in Water Quality of the Sorbulak Wastewater Disposal System (Kazakhstan)

Krupa

Barınova

Romanova

et al. 2020

Water

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“…To date, water columns and sediments are usually used as test samples for the quantification of HM pollution in the marine environment. However, the water analysis can be misleading because the metal concentrations in the solution are often close to the analytical detection limits, and they can be very variable over time [ 14 ]. In order to detect significant differences, the water analysis should take into consideration a well-planned sampling programme, which greatly impacts the time and costs of the investigation [ 14 , 15 ].…”

Section: Introductionmentioning

confidence: 99%

“…However, the water analysis can be misleading because the metal concentrations in the solution are often close to the analytical detection limits, and they can be very variable over time [ 14 ]. In order to detect significant differences, the water analysis should take into consideration a well-planned sampling programme, which greatly impacts the time and costs of the investigation [ 14 , 15 ]. Sediment analysis, on the other hand, is more effective since HM concentrations remain more stable in this abiotic matrix over time, but this approach is not feasible when hard substrates are present (rocky substrates) or when the seabed is too deep.…”

Section: Introductionmentioning

confidence: 99%

Cystoseira compressa and Ericaria mediterranea: Effective Bioindicators for Heavy- and Semi-Metal Monitoring in Marine Environments with Rocky Substrates

Pagana,

Nava,

Puglia

et al. 2024

Plants

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Marine environmental monitoring is essential to ensure that heavy-metal (HM) concentrations remain within safe limits. Most seawater analyses currently consider sediment or water samples, but this approach does not apply to rocky substrates, where water samples can only indicate immediate contamination. We used two common Mediterranean algae species, Cystoseira compressa and Ericaria mediterranea, as bioindicators living in the intertidal zone on rocky substrates along the seacoast. HM concentrations were assessed over a one-year period in the perennial base crust and in the seasonal frond, considering marine sites characterised by different contamination risks. Both algae showed that HMs accumulate mainly in the perennial base rather than in the seasonal frond. Furthermore, the algae species always showed a different order of bioaccumulation factors: Cd > Ni > Pb > Cr > Cu > Mn > Zn for the frond and Pb > Cr > Ni > Cd > Mn > Cu > Zn for the base. Our study shows that C. compressa and E. mediterranea accumulate HM consistently with the types of sites analysed and differentially with respect to the part of the thallus. These results demonstrate that these algae can be effectively used as reliable bioindicators to assess the presence of HM in marine environments with rocky substrates, providing both short- and long-term monitoring.

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“…The growth of the earth's population causes an annual increase in the volume of wastewater containing a complex set of organic and toxic compounds [1][2][3][4]. A significant part of wastewater is discharged into natural water bodies [5-6], causing considerable damage to biological resources and human health [7][8].…”

Section: Introductionmentioning

confidence: 99%

Seasonal Dynamics of Environmental Variables and Zooplankton Structure in Wastewater Reservoirs of the Right-Bank Sorbulak Canal System

Aubakirova

Krupa

Romanova

2022

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The annual increase in wastewater volumes necessitates comprehensive studies of water bodies subsidized by anthropogenic activities. An example of such reservoirs is Sorbulak and a system of shallow ponds into which pre-treated wastewater from Almaty and its environs is discharged. The published works provide fragmentary data on the hydrochemical and hydrobiological regimes of Sorbulak and ponds. There is no information on the seasonal dynamics of these variables. Our paper, aimed at studying the seasonal dynamics of pollutants and the zooplankton structure, partially fills this gap. Environmental and biological samples were taken in Sorbulak and two ponds by standard methods once a month, from April to September of 2021. The content of nutrients was high, and the heavy metals concentrations, except for copper, were low. The seasonal dynamics of pollutants in reservoirs were determined mainly by their entry from wastewater, with a more negligible contribution of natural factors. Zooplankton was represented by 80 species with an average abundance of 177.3-834.4 thousand ind./m 3 and average biomass of 9.6-10.4 g/m 3 . The values of the Shannon index were 1.98-2.12 bit/ind and 0.88-1.76 bit/ mg, the average mass of an individual was 0.0140-0.0853 mg. The seasonal dynamics of zooplankton in the surveyed water bodies were different. The obtained results and comparison with the data of previous studies testified to the instability of the species composition of zooplankton communities both during one year and in individual years. Contradictions between the structure of zooplankton communities and the chemical variables of the studied reservoirs were identified. The results obtained to make a theoretical and practical contribution to understanding the formation of water quality in reservoirs with mixed pollution emphasize the need for further comprehensive studies of reservoirs of this type, and show specific differences between anthropogenic and natural successions of aquatic ecosystems.

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Heavy Metal Bioaccumulation in Brown Algae Cystoseira compressa in Algerian Coasts, Mediterranean Sea

Cited by 20 publications

References 15 publications

Planktonic Invertebrates in the Assessment of Long-Term Change in Water Quality of the Sorbulak Wastewater Disposal System (Kazakhstan)

Planktonic Invertebrates in the Assessment of Long-Term Change in Water Quality of the Sorbulak Wastewater Disposal System (Kazakhstan)

Cystoseira compressa and Ericaria mediterranea: Effective Bioindicators for Heavy- and Semi-Metal Monitoring in Marine Environments with Rocky Substrates

Seasonal Dynamics of Environmental Variables and Zooplankton Structure in Wastewater Reservoirs of the Right-Bank Sorbulak Canal System

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