Prevalence of skin ulceration in cod (Gadus morhua callarias L.) under anthropogenic contamination in the southeastern part of the Baltic Sea

Rodjuk, G.; Chukalova, Natalia; Shenderyuk, V. V.; Bakholdina, L. P.; Chernysheva, Nb.; Sayadov, S. O.

doi:10.1134/s1995082912010129

Cited by 7 publications

(5 citation statements)

References 8 publications

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“…Moreover in our study Baltic cod (0.21 mg kg –1 ) was found to be more contaminated with cadmium than Atlantic cod (0.15 mg kg –1 ). Our results are 10‐fold higher than the results reported by Liorancas & Andriejaukiene 39 but, at the same time, they are significantly lower than the results reported by Rodjuk et al ., 38 which showed an accumulation of Cd in Baltic cod at the extreme level of 41.6 ± 16.4 mg kg –1 .…”

Section: Discussioncontrasting

confidence: 79%

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Content of toxic metals and As in marine and freshwater fish species available for sale in EU supermarkets and health risk associated with its consumption

2020

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BACKGROUND The present study investigated Pb, Cd and As concentrations in canned tuna, tuna steak, rainbow trout, smoked mackerel, and Baltic and Atlantic cod, as well as Atlantic salmon. The aim was to spot check the quality of the most commonly purchased types of fish that are available for sale in most common supermarket chains throughout the Poland, as well as to determine potentially less contaminated sources of fish available for retail. A dry ashing digestion protocol followed by inductively coupled plasma mass spectrometry analysis was employed to achieve a better recover of heavy metals and As from fish muscle tissues. RESULTS The cumulative concentration of metals and As in fish muscle tissue decreases in order: farmed Atlantic salmon > mackerel > Baltic cod > rainbow trout > canned tuna fish > Atlantic cod > yellowfin tuna steak. It was found that canned tuna from Central and Eastern Pacific Ocean were more contaminated than tuna from East and West Indian Ocean, Baltic cod was significantly more contaminated than cod from North‐East Atlantic. Smoked mackerel from North‐East Pacific Ocean is three times more contaminated than mackerel from Northern North Sea. All fish, except for yellowfin tuna steak, should not be intended for retail because they exceed maximum levels for Cd and Pb. CONCLUSION Consuming only one serving (140 g) of Baltic cod exposes one to 51% of the daily acceptable Cd intake, while the same portion of canned tuna and smoked mackerel from the Pacific Ocean deliver 69% and 72% of this element respectively. The most cadmium is consumed with smoked mackerel from the North Sea, comprising as much as 162% of the daily acceptable dosage . © 2020 Society of Chemical Industry

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Section: Discussioncontrasting

confidence: 79%

“…for the same type of fish. However, at the same time, Rodjuk et al 38 . reported an extremely high concentration of Pb in Baltic cod of 32 ± 13 mg kg –1 , which significantly exceeds the value obtained in cod meat available for sale in the Polish supermarket (1.15 mg kg –1 ).…”

Section: Discussionmentioning

confidence: 90%

Content of toxic metals and As in marine and freshwater fish species available for sale in EU supermarkets and health risk associated with its consumption

2020

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“…Dermal ulcers were very rare in both groups of fish (one fish each). Previously, dermal ulcers were reported in cod from sites impacted by anthropogenic pollution (Aas et al., ; Rodiuk et al., ) and in natural infections with Vibrio sp. and Francisella noatunensis (Olsen et al., ; Reimer & Walter, ).…”

Section: Discussionmentioning

confidence: 95%

A follow‐up study of selected biomarkers of health in cod Gadus morhua L. collected from the southern Baltic off the Polish coast

Borucinska

Morka

Grabowski

et al. 2017

Journal of Fish Diseases

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Selected biomarkers of health were examined in 50 post-spawning cod Gadus morhua collected in November 2015 from the southern Baltic. The biomarkers included condition factor (CF), macroscopic lesions, histopathology of spleen, liver and gonads, and morphometry of follicular atresia and hepatic and splenic melanomacrophage cells (MMC). All fish appeared in good body condition. One fish had a dermal ulcer, and in seven, macroscopic nematodes were noted within body cavity. Microscopic lesions in the liver included biliary myxozoanosis, microsporidial and necrocentric granulomas, parasitic hepatitis, multifocal necrosis, foci of cellular alterations, spongiosis, peliosis and cytoplasmic fibrillar inclusions. The spleen and gonads had microsporidial and/or necrocentric granulomas. Some of the biomarkers showed differences as compared to spawning cod collected in May from the same location in 2012, most importantly values an order of magnitude lower for splenic MMC in post-spawning fish. In post-spawning fish, there were statistically significant correlations between MMC, CF, follicular atresia, parasitic hepatitis and microsporidiosis. This is the first comparison of biomarkers of health in post-spawning and spawning Baltic cod. Future studies need to examine the relationships of biomarkers to levels of pollutants in the environment and in tissues of cod.

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“…High intercellular levels of heavy metals can be toxic, resulting in alterations in the intercellular protein machinery via the denaturation of enzymes or the generation of reactive oxygen species (ROS) [ 10 ]. The relationship between metal concentrations and the pathological state of different fish species has been previously studied by others [ 11 , 12 , 13 ].…”

Section: Introductionmentioning

confidence: 99%

Heavy Metals and the Occurrence of Ulcerative Dermal Necrosis (UDN) in Sea Trout from the RIVER REGA, Poland—Consumer Health Assessment

Rajkowska-Myśliwiec

Protasowicki

Tański

et al. 2022

IJERPH

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Various factors, including heavy metals, can make fish more susceptible to disease. This study investigated, inter alia, the relationship between Pb, Cd, and Hg contamination of the organs and muscles of sea trout from the river Rega (Poland) and the occurrence of UDN (ulcerative skin necrosis) symptoms. Moreover, the dietary risk of Pb, Cd, and Hg uptake from the muscles of healthy sea trout was assessed based on estimated daily intake (EDI), target hazard quotient (THQ), benchmark dose lower confidence limits (BMDL01 and BMDL10), and tolerable weekly intake (TWI). The metal concentrations varied, depending on the fish organs and the fish condition. A significantly higher amount of Pb was found in the gonads, gills, and muscles, Cd in the kidneys, and Hg in the muscles of sea trout with UDN symptoms. The lowest concentrations of Pb and Cd were detected in the muscles, and of Hg in the gonads. Dietary exposure to Pb, Cd, and Hg accounted for: 0.4% of BMDL01 and 1.0% of BMDL10, 0.56% of TWI, and 16.5% of TWI, respectively. THQs for each metal and the HI value for combined metals were below 1. The weakening of fish due to UDN-like disease probably increased the accumulation of Pb in the gonads, gills, and muscles, and of Cd in the kidneys, of the sea trout. As regards the maximum levels (MRLs), the muscles of healthy sea trout are safe for consumption. The risk assessment suggests no concern for the health of consumers.

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Prevalence of skin ulceration in cod (Gadus morhua callarias L.) under anthropogenic contamination in the southeastern part of the Baltic Sea

Cited by 7 publications

References 8 publications

Content of toxic metals and As in marine and freshwater fish species available for sale in EU supermarkets and health risk associated with its consumption

Content of toxic metals and As in marine and freshwater fish species available for sale in EU supermarkets and health risk associated with its consumption

A follow‐up study of selected biomarkers of health in cod Gadus morhua L. collected from the southern Baltic off the Polish coast

Heavy Metals and the Occurrence of Ulcerative Dermal Necrosis (UDN) in Sea Trout from the RIVER REGA, Poland—Consumer Health Assessment

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