Spatial distribution, partitioning, ecological risk and source apportionment of potential toxic elements in water and sediments of the Hoor Al-Azim wetland and their bioaccumulation in selected commercial fish species

2021 ◽  
Vol 172 ◽  
pp. 112875
Author(s):  
Sara Sheikh Fakhradini ◽  
Farid Moore ◽  
Behnam Keshavarzi ◽  
Ravi Naidu ◽  
Ayanka Wijayawardena ◽  
...  
Keyword(s):  
Spatial Distribution ◽  
Source Apportionment ◽  
Ecological Risk ◽  
Fish Species ◽  
Toxic Elements ◽  
Commercial Fish ◽  
Potential Toxic Elements

scholarly journals Mapping and Assessing Commercial Fisheries Services in the Lithuanian Part of the Curonian Lagoon

Fishes ◽  
2022 ◽  
Vol 7 (1) ◽  
pp. 19
Author(s):  
Edgaras Ivanauskas ◽  
Andrius Skersonas ◽  
Vaidotas Andrašūnas ◽  
Soukaina Elyaagoubi ◽  
Artūras Razinkovas-Baziukas
Keyword(s):  
Spatial Distribution ◽  
Residence Time ◽  
Fish Species ◽  
Circulation Model ◽  
Curonian Lagoon ◽  
Water Residence Time ◽  
Total Catch ◽  
Catch Per Unit Effort ◽  
Commercial Fish ◽  
The Impact

The spatial distribution of biomass of main commercial fish species was mapped to estimate the supply of a provisioning fishery service in the Curonian lagoon. Catch per unit effort (CPUE) was used as a proxy to estimate the efficiency of commercial fishing and, subsequently, the potential biomass of fishes. The relationship between distinctive characteristics of the fishing areas and corresponding commercial catches and CPUE was analyzed using multivariate analysis. The total catch values and CPUE used in the analyses were derived from the official commercial fishery records. RDE analysis was used to assess the variation of both catch and CPUE of commercial fish species, while the percentages of bottom sediment type coverage, average depth, annual salinity, and water residence time in each of the fishing squares were used as explanatory variables. This distance e-based redundancy analysis allowed for the use of non-Euclidean dissimilarity indices. Fisheries data spatial distribution map indicated the lack of coherence between the spatial patterns of commercial catches and CPUE distribution in the northern part of the lagoon. Highest CPUE values were estimated in the central-eastern part of the lagoon as compared to the western part of the lagoon where CPUE values were substantially lower. Both total catch and CPUE appeared not to be related to the type of bottom habitats statistically while being spatially correlated in-between. However, the impact of salinity and water residence time calculated using the 3D hydraulic circulation model on the distribution of both CPUE and commercial catches was statistically significant.

Spatial distribution and source of potential toxic elements (PTEs) in urban soils of Guangzhou, China

2016 ◽  
Vol 75 (4) ◽  
Author(s):  
Ying Lu ◽  
Chongjian Jia ◽  
Ganlin Zhang ◽  
Yuguo Zhao ◽  
Michael A. Wilson
Keyword(s):  
Spatial Distribution ◽  
Urban Soils ◽  
Toxic Elements ◽  
Potential Toxic Elements

scholarly journals Assessment of Potential Toxic Elements in Muscle Tissues of Different Fish Species from Colentina, Dambovita and Arges Rivers, Romania

2001 ◽  
Vol 71 (3) ◽  
pp. 19-28 ◽  
Author(s):  
Petra Ionescu ◽  
Violeta-Monica Radu ◽  
Gyorgy Deak ◽  
Elena Diacu ◽  
Alexandru Anton Ivanov ◽  
...  
Keyword(s):  
Human Health ◽  
Fish Species ◽  
Toxic Elements ◽  
Perca Fluviatilis ◽  
Point Of View ◽  
Lepomis Gibbosus ◽  
Toxic Substances ◽  
Potential Toxic Elements ◽  
Ameiurus Nebulosus ◽  
Muscle Tissues

At global level, anthropic activities have led to the emergence in the environment of different toxic substances, which tend to accumulate within the food chain, thus presenting risks to human health. As a result, the assessment of potentially toxic elements, particularly heavy metals, in fish is highly important from the point of view of human health as fish is frequently consumed by people. This paper presents the results of a study on determining some potential toxic elements such as Cd, Pb, Hg, Cu, Cr, Ni and Zn in muscle tissue resulting from six different fish species (Alburnus alburnus, Carassius gibelio, Scardinius erythrophthalmus, Ameiurus nebulosus, Perca fluviatilis, Lepomis gibbosus) from the Colentina, Dambovita and Arges Rivers situated in southern Romania area, and to compare the results with the relevant international guidelines.

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