Histological alterations under metal exposure in gills of European perch (Perca fluviatilis L.) from Topolnitsa Reservoir (Bulgaria)

Topolnitsa Reservoir is located in a region of Bulgaria rich in copper mines where intensive mining has been ongoing for several decades. General data on the ecological status of the reservoir and the effects of metal on fish is relatively scarce. The first aim of the study was to measure the concentrations of six metals (As, Cd, Cu, Ni, Pb and Zn) in water samples and in the gills of European perch (Perca fluviatilis L.). The second objective was to examine gill structure and determine the severity of histological alteration as a result of metal exposure. Surface water and fish gill samples were collected in spring, summer and autumn in 2012 and metal and histological analyses were performed. Metal concentrations in the water samples varied, but only Cu concentrations were determined in all three seasons and they were higher than the maximum permissible levels. The gill metal concentrations were significantly higher (P<0.05) than in the water. Examination of gill structure revealed the presence of proliferative and degenerative changes, as well as changes in the blood vessels. Histological lesions were similar in their severity in all three seasons. This study provides the first information about metal effects on the morphology of European perch gills from Topolnitsa Reservoir. It can be concluded that the metal contamination of the Topolnitsa Reservoir and fish is chronic and that it can negatively affect the structure and function of fish gills. As metals display a tendency to accumulate in fish gills, their effects are expected to become more severe with time, as they affect gill functions. This article has been corrected. Link to the correction <a href="http://dx.doi.org/10.2298/ABS1801215E">10.2298/ABS1801215E</a>

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High Pollution with Heavy Metals NATURA 2000 Protected Area in Bacau County, Eastern Romania

Revista de Chimie ◽

10.37358/rc.20.6.8180 ◽

2020 ◽

Vol 71 (6) ◽

pp. 154-169

Author(s):

Bogdan-Ioan Bontas ◽

Diana-Carmen Mirila ◽

Gabriel Gritcu ◽

Ileana-Denisa Nistor ◽

Dorel Ureche

Keyword(s):

Heavy Metals ◽

Heavy Metal ◽

Perca Fluviatilis ◽

Natura 2000 ◽

World Health ◽

European Perch ◽

Muscle Sample ◽

Minimum Concentration ◽

Fish Gills ◽

Perch Perca Fluviatilis

Chemical pollution in rivers ecosystems is leading towards an increase in the concentrations of heavy metals in fish body, which might have a negative impact on humans. The fish were collected from a protected Natura 2000 area in the Moldavia region, eastern Romania named �Buhusi-Bacau-Beresti� Storage basin. The aim of this study was to measure the heavy metal concentrations in water, sediment and fish meat (muscles and gills), in order to assess the human health risk due to consumption. Industrial effluents discharged into the environment pose a serious threat for the agricultural products and living organisms. In view of this, level of some heavy metals, such as: Cd, Zn, Pb and Cu present in water, sediment and fish tissue samples of fish populations from the area studied were determined using wet digestion-based atomic adsorption method. This study revealed that the maximum Cd concentration (0.911 mg/Kg) was found in fish gills of specie European Perch � Perca fluviatilis and the minimum (0.0197 mg/Kg) was found in Zander - Sander lucioperca fish muscle sample. Zn levels in fish gills of the studied samples were ranged from 108.6698 mg/Kg to 195.4167 mg/Kg. Maximum Pb concentration in gills (1.924 mg/Kg) was found in fish sample of Zarte � Vimba Vimba, while the minimum concentration (0.45 mg/Kg) was found in European Perch � Perca fluviatilis. The heavy metal found in the samples analyzed in the largest quantity is Cu, in the gills of Northernpike - Esox Lucius fish.The concentration determined in samples exceeded the World Health Organisation maximum allowances. In order to assess the risk to which humans are exposed by eating infected meat with heavy metals, the target hazard quotient (THQ) values were estimated.

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Corrigendum: Georgieva E, Yancheva V, Velcheva I, Becheva M, Stoyanova S. Histological alterations under metal exposure in gills of European perch (Perca fluviatilis L.) from topolnitsa reservoir (Bulgaria). Arch Biol Sci. 2015;67(2):729-737, https://doi.org/10.2298/ABS141020034G

Archives of Biological Sciences ◽

10.2298/abs1801215e ◽

2018 ◽

Vol 70 (1) ◽

pp. 215-215

Author(s):

E Editorial

Keyword(s):

Perca Fluviatilis ◽

Metal Exposure ◽

European Perch ◽

Histological Alterations ◽

Perch Perca Fluviatilis

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The combined effect of body size and temperature on oxygen consumption rates and the size‐dependency of preferred temperature in European perch Perca fluviatilis

Journal of Fish Biology ◽

10.1111/jfb.14807 ◽

2021 ◽

Vol 98 (6) ◽

pp. 1556-1556

Keyword(s):

Oxygen Consumption ◽

Body Size ◽

Perca Fluviatilis ◽

Combined Effect ◽

European Perch ◽

Preferred Temperature ◽

Size Dependency ◽

Perch Perca Fluviatilis ◽

Consumption Rates

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Adult female European perch (Perca fluviatilis) from the Baltic Sea show no evidence of thiamine deficiency

Journal of Sea Research ◽

10.1016/j.seares.2021.102081 ◽

2021 ◽

pp. 102081

Author(s):

Johan Gustafsson ◽

Karin Ström ◽

Linus Arvstrand ◽

Lars Förlin ◽

Lillemor Asplund ◽

...

Keyword(s):

Baltic Sea ◽

Adult Female ◽

Thiamine Deficiency ◽

Perca Fluviatilis ◽

The Baltic Sea ◽

European Perch ◽

Perch Perca Fluviatilis ◽

The Baltic

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Factors determining parasite abundance in European perch, Perca fluviatilis, European whitefish, Coregonus lavaretus, and Arctic charr, Salvelinus alpinus, in an oligotrophic lake, southern Norway

Fauna norvegica ◽

10.5324/fn.v40i0.3444 ◽

2020 ◽

Vol 40 ◽

pp. 109-129

Author(s):

Tom Robin Olk ◽

Ann-Cecilie Henriksen ◽

Solveig Irene Dolven ◽

Mathias Leithe Haukø ◽

Espen Lydersen ◽

...

Keyword(s):

Salvelinus Alpinus ◽

Arctic Charr ◽

Perca Fluviatilis ◽

Coregonus Lavaretus ◽

Host Age ◽

European Perch ◽

Parasite Abundance ◽

Perch Perca Fluviatilis ◽

Southern Norway ◽

Benthic Animals

Time and spatial variations in macroparasite status were investigated in European perch, Perca fluviatilis, European whitefish, Coregonus lavaretus, and Arctic charr, Salvelinus alpinus in Lake Norsjø (Southern Norway), based on gillnet fishing in three locations in the spring, summer, and fall 2018. In addition, length, weigth, age, sex, δ13C, and δ15N were determined. Parasite abundance was modelled using negative binomial generalized linear models in relation to fish metrics, season, and sampling location. The most prevalent parasite species were determined by the diet and habitat of the host. European perch was mainly infected by acanthocephalans, European whitefish mainly infected by acanthocephalans and cestodes, and Arctic charr mainly infected by cestodes. The most prevalent parasites in European perch are transmitted by benthic animals. Parasites in European whitefish are transmitted by both benthic animals and copepods, while the most prevalent parasites in Arctic charr are copepod transmitted. This corresponds well with the δ13C signatures in the three species, indicating that European perch primarily fed in the littoral zone (δ13C: -24.9 ± 2.5 ‰), Arctic charr in the pelagic and profundal zone (δ13C: -29.4 ± 1.1 ‰), while European whitefish both fed in the littoral and pelagic zone (δ13C: -28.3 ± 2.3 ‰) of Lake Norsjø. Individual abundances of parasites depended on host age, length, sex, δ15N, and season. Positive correlations between parasite abundance and host age, length, or trophic level measured as δ15N were most common, and occurred in all three host species. Many parasites accumulate with age, and larger hosts provide more diverse habitats for parasites.

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Monitoring of the ecological state of the city lake of Chita

Safety of technogenic and natural systems ◽

10.23947/2541-9129-2021-4-52-57 ◽

2021 ◽

pp. 52-57

Author(s):

Vladimir V. Zvyagintsev ◽

Olga Yu. Zvyagintseva ◽

Vadim K. Chernyshov

Keyword(s):

Heavy Metals ◽

Fluctuating Asymmetry ◽

Aquatic Ecosystem ◽

Perca Fluviatilis ◽

Gibel Carp ◽

European Perch ◽

Lake Kenon ◽

Perch Perca Fluviatilis ◽

The City

Introduction. The paper presents the results of the studies on assessing the quality of the aquatic ecosystem of a lake located within the city. The European perch (Perca fluviatilis L.) and the Gibel carp (Carassius gibelio) were used as an indicator for determining the quality of the aquatic ecosystem by the method of fluctuating asymmetry. Problem Statement. The aim of the work was to conduct monitoring with the subsequent assessment of the quality of the ecosystem of the city lake using the method of fluctuating asymmetry (hereinafter FA). Theoretical and Practical Part. The quality of the urban lake aquatic ecosystem was assessed using the FA method (indicators: the European perch (Perca fluviatilis L.), 1758 and the Gibel carp (Carassius auratus Bloch), 1783). To identify the reasons for the high PFA values, a chemical analysis (in an accredited laboratory) of the gills of the Gibel carp for heavy metals was performed. Conclusions. As a result of the research, the FA indicators values for these indicators were obtained. According to the results of a laboratory study of the content of heavy metals in the gill arches of the Gibel carp, an excess of the maximum permissible concentration of 8 out of 10 analyzed elements was revealed. It has been established that the ecosystem of the city lake Kenon is experiencing a significant anthropogenic load (5 points — the critical quality of the aquatic environment) and it continues to increase towards the deterioration of the habitat.

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