Assessment of the impact of aquaculture facilities on transplanted mussels (Mytilus galloprovincialis): Integrating plasticizers and physiological analyses as a biomonitoring strategy

2021 ◽  
pp. 127264
Author(s):  
Beatriz Rios-Fuster ◽  
Carme Alomar ◽  
CapoXavier Capó ◽  
GonzalezGema Paniagua González ◽  
MartinezRosa Maria Garcinuño Martínez ◽  
...  
Keyword(s):  
Mytilus Galloprovincialis ◽  
Aquaculture Facilities ◽  
The Impact

scholarly journals The Impact of Possible Mercury Source-Point Contamination in the Coastal Area of Skiathos Island

2020 ◽  
Vol 2 (1) ◽  
pp. 50
Author(s):  
Alexandra Spyropoulou ◽  
Chrysi Laspidou ◽  
Kostantinos Kormas ◽  
Yannis G. Lazarou
Keyword(s):  
Wastewater Treatment ◽  
Field Experiment ◽  
Mercury Concentration ◽  
Coastal Waters ◽  
Coastal Area ◽  
Mytilus Galloprovincialis ◽  
Mercury Contamination ◽  
Reference Station ◽  
The Impact ◽  
Mercury Monitoring

In Skiathos Island the water is not potable due to mercury contamination and salinization. The mercury’s origin is natural due to the existence of cinnabar in the Skiathos aquifer as a mineral in the Earth’s crust. The possibility of mercury contaminants ending up in the coastal area was investigated through a field experiment. Mussels (Mytilus galloprovincialis) were employed as mercury monitoring biomarkers at the outflow of the wastewater treatment of the island. Using the RNA:DNA ratio, it was revealed that the organisms were stressed after three months of exposure to Skiathos’ coastal waters. The mercury concentration was directly measured at the bulk mussels’ tissue showing differences between the station located at the outflow of the WWT and the reference station. Although the results may imply mercury contamination in the coastal area of the island, the precise origin of the mercury in mussels is difficult to define.

scholarly journals An ecotoxicological protocol with caged mussels, Mytilus galloprovincialis, for monitoring the impact of an offshore platform in the Adriatic sea

2008 ◽  
Vol 65 (1) ◽  
pp. 34-49 ◽  
Author(s):  
Stefania Gorbi ◽  
Claudia Virno Lamberti ◽  
Alessandra Notti ◽  
Maura Benedetti ◽  
Daniele Fattorini ◽  
...  
Keyword(s):  
Mytilus Galloprovincialis ◽  
Adriatic Sea ◽  
Offshore Platform ◽  
The Impact

scholarly journals The impact of withdrawing aquaculture facilities on metazooplankton communities in the lakes are connected to the Yangtze River, China

PLoS ONE ◽  
2021 ◽  
Vol 16 (5) ◽  
pp. e0252100
Author(s):  
Yixing Zhang ◽  
Yutao Wang ◽  
Zhongze Zhou
Keyword(s):  
Aquatic Plants ◽  
Yangtze River ◽  
Species Turnover ◽  
Water Environment ◽  
Scientific Basis ◽  
The Yangtze River ◽  
Β Diversity ◽  
Water Ecosystem ◽  
Aquaculture Facilities ◽  
The Impact

The withdrawal of aquaculture facilities has an important impact on the aquatic ecosystem of the lakes connected to the Yangtze River. In order to elucidate the response mechanism of metazooplankton to the changes in water environment after the removal of aquaculture facilities, we collected metazooplankton samples and investigated the water environment in the Huayanghe Lakes from the summer of 2018 to the spring of 2019. Aquatic plants recovered quickly, and water eutrophication was relieved, especially in Lake Huangda, followed by Lake Bo. During our study, the highest regional (γ) diversity was 71 in summer, while the lowest was 32 in winter. Species turnover in space (β diversity) varied between 10.01 and 56.52, which was highest in summer. Based on redundancy analysis, environmental factors such as transparency, Chl α, water temperature and water depth, had greatly effects on the metazooplankton community structure. The results showed that the restoration of aquatic plants increased species diversity and metazooplankton density. This study provides a data basis for lakes restoration and a scientific basis for the management and protection of lakes water ecosystem.

scholarly journals Feet, heat and scallops: what is the cost of anthropogenic disturbance in bivalve aquaculture?

2016 ◽  
Vol 3 (3) ◽  
pp. 150679 ◽  
Author(s):  
Anthony A. Robson ◽  
Lewis G. Halsey ◽  
Laurent Chauvaud
Keyword(s):  
Anthropogenic Disturbance ◽  
Growth Time ◽  
Energy Costs ◽  
Trade Off ◽  
Level Of Activity ◽  
Different Temperatures ◽  
The Cost ◽  
Aquaculture Facilities ◽  
The Impact ◽  
Bivalve Aquaculture

The effects of unnatural disturbances on the behaviour and energetics of animals are an important issue for conservation and commercial animal production. Biologging enables estimation of the energy costs of these disturbances, but not specifically the effect these costs have on growth; a key outcome measure for animal farming enterprises. We looked at how natural and anthropogenically induced activity and energy expenditure of king scallops Pecten maximus varies with temperature. These data were then used to model growth time of king scallops reared in an aquaculture facility under different temperatures and anthropogenic disturbance levels. The scallops exhibited a typical total metabolic rate (MR)–temperature curve, with a peak reached at a middling temperature. The percentage of their total MR associated with spinning and swimming, behavioural responses to disturbance, was considerable. Interestingly, as temperature increased, the activity MR associated with a given level of activity decreased; a hitherto unreported relationship in any species. The model results suggest there is a trade-off in the ambient temperature that should be set by hatcheries between the optimal for scallop growth if completely undisturbed versus mitigating against the energy costs elicited by anthropogenic disturbance. Furthermore, the model indicates that this trade-off is affected by scallop size. Aquaculture facilities typically have controls to limit the impact of human activities, yet the present data indicate that hatcheries may be advised to consider whether more controls could further decrease extraneous scallop behaviours, resulting in enhanced scallop yields and improved financial margins.

scholarly journals Adaptation of Bivalve Molluscs to Environmental Conditions in the Coastal Region of El Jadida (Morocco): Case of Mytilus Galloprovincialis

2017 ◽  
Vol 13 (18) ◽  
pp. 226
Author(s):  
Essedaoui Aafaf ◽  
Messaoudi Abdelfettah ◽  
Ferssiwi Abdesslam ◽  
Massar Redouane ◽  
Bitar Abdelali
Keyword(s):  
Industrial Pollution ◽  
Mytilus Galloprovincialis ◽  
Coastal Region ◽  
Industrial Effluents ◽  
Condition Index ◽  
Temporal Variations ◽  
Reference Station ◽  
Significant Difference ◽  
El Jadida ◽  
The Impact

The aim of this study is to assess the impact of industrial pollution on the growth and reproduction of the mussel Mytilus galloprovincialis from coastal region of El Jadida (Morocco). To this aim, three stations (S1, S2 and S3) are chosen according to their proximity to the industrial effluents of the chemical complex. The seawater and mussels (N = 100/ station) samples have been randomly and monthly collected for a period of 6 months (February-July 16). Mussels are distributed in 6 classes of size and measures of condition index and gonadic index are performed in the most common size classes. The results of the analysis of physicochemical parameters of the water show spatio-temporal variations with an acidic pH, high temperature and low salinity in the station near of industrials effluents. Regarding condition index and the gonadic index, there is no significant difference between the mussels collected from the reference station (S2) and the polluted station (S3). This can be explained partly by the adoption of a strategy of adaptation to the environmental stress caused by the industrial pollution.

Monitoring of the impact of Prestige oil spill on Mytilus galloprovincialis from Galician coast

2006 ◽  
Vol 32 (3) ◽  
pp. 342-348 ◽  
Author(s):  
Blanca Laffon ◽  
Tamara Rábade ◽  
Eduardo Pásaro ◽  
Josefina Méndez
Keyword(s):  
Oil Spill ◽  
Mytilus Galloprovincialis ◽  
Galician Coast ◽  
Prestige Oil Spill ◽  
The Impact

scholarly journals Resistance to negative effects and the ratio of energy metabolism enzyme activity in tissues of the Black Sea molluscs Mytilus galloprovincialis Lamarck, 1819 and Anadara kagoshimensis (Tokunaga, 1906)

2019 ◽  
Vol 4 (3) ◽  
pp. 37-47
Author(s):  
I. V. Golovina
Keyword(s):  
Enzyme Activity ◽  
Energy Metabolism ◽  
Mytilus Galloprovincialis ◽  
The Black Sea ◽  
Negative Effects ◽  
Mizuhopecten Yessoensis ◽  
Anadara Kagoshimensis ◽  
Metabolism Enzyme ◽  
Successful Invader ◽  
The Impact

Determining the ratio of energy metabolism enzyme activity of malate dehydrogenase (MDH, 1.1.1.37) and lactate dehydrogenase (LDH, 1.1.1.27) allows getting the cumulative assessment of the physiological condition of the object of study in response to the impact of different nature. The aim of the study was to compare the change of value of MDH/LDH ratio in the tissues of bivalve molluscs: native mussel Mytilus galloprovincialis and successful invader Anadara kagoshimensis – in laboratory conditions under the effect of hypoxia, anoxia, PCBs, hydrogen sulfide contamination and long-term maintenance in the aquarium without feeding. Sexually mature molluscs were collected near Sevastopol. Shell length of a mussel was 45–62 mm, of anadara – 27–49 mm. Enzyme activity was measured spectrophotometrically (at 340 nm and 25 °C) by the rate of NADH oxidation in the cytoplasm of tissues (muscles, hepatopancreas, gills). Under the effect of negative factors, as a rule, LDH activity decreased significantly (by 36–80 %), MDH activity remained stable, and MDH/LDH ratio in the tissues of both species of molluscs increased 1.5–4 times. However, in the tissues of hemoglobin-containing anadara the ratio was 10 times lower than that of mussels, both in control and in the experiment. Comparison with literature data showed that tolerant to hypoxia mollusc-invader had the same low MDH/LDH ratio as oxyphilic hydrobionts: scallop Mizuhopecten yessoensis (Jay, 1857), crustaceans Crangon crangon (Linnaeus, 1758) and Carcinus aestuarii Nardo, 1847. Apparently, the low MDH/LDH ratio reflects the ability of anadara to maintain a high level of oxidizing processes in the tissues due to the content in them of a significant pool of erythrocyte hemoglobin, carotenoids, glutathione, which support the aerobic process and implement antioxidant protection. The ratio of the activity of MDH/LDH can be used in monitoring studies to assess the degree of oxygenation of molluscs tissues in normal and hypoxic conditions of different origin.

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