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Influence of arsenic and cyanobacteria co-exposure on plasmatic parameters of rainbow trout (Oncorhynchus mykiss W.).
Neuro Endocrinol Lett. 2014; 35 Suppl 2:57-63.NE

Abstract

OBJECTIVES

Fish can be exposed under environmental conditions to multiple stressors including natural toxins and environmental or feed contamination at the same time. This study brings new knowledge about the effects of controlled exposure to multiple stressors in fish. The aim of this study was to test the hypothesis that influence of cyanobacterial biomass and arsenic in feed can combine to enhance the effects on fish.

METHODS

Rainbow trouts were sorted into six groups, each with 25 specimens: control group (fed with commercial feed), groups exposed to toxic cyanobacterial biomass (81 mg x kg(-1) MCs of feed), two groups exposed to arsenic (concentration of 5 mg x kg(-1), and 50 mg x kg(-1) of fish feed) and two groups exposed to combination of cyanobacterial biomass and arsenic in two concentrations mentioned above. The experiment lasted 30 days. During the experiment we evaluated the influence of co-exposure on plasmatic parameters mentioned above. Samples were collected on days 10, 20 and 30 of exposure.

RESULTS

Biochemical analysis revealed a significant decrease in calcium (T20) and an increase in natrium (T10) and chlorides (T10) values in combined cyanobacterial and arsenic exposures. Our results showed a significant decrease in the values of magnesium after exposure to higher concentration of arsenic compared to control and feeding with addition of cyanobacterial biomass groups. The changes of other monitored plasmatic parameters were not significantly increased or decreased in comparison with controls.

CONCLUSIONS

Our results confirmed the hypothesis that influence of toxic cyanobacterial biomass and a chemical agent represented by arsenic can combine to enhance the effects on fish. This work originally shows that while the single agents in sub-lethal doses do not cause changes in the plasmatic parameters, their co-exposure leads to the significantly decrease or increase of the electrolytes of rainbow trout.

Authors

No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

25638367

Citation

Kopp, Radovan, et al. "Influence of Arsenic and Cyanobacteria Co-exposure On Plasmatic Parameters of Rainbow Trout (Oncorhynchus Mykiss W.)." Neuro Endocrinology Letters, vol. 35 Suppl 2, 2014, pp. 57-63.
Kopp R, Mares J, Soukupova Z, et al. Influence of arsenic and cyanobacteria co-exposure on plasmatic parameters of rainbow trout (Oncorhynchus mykiss W.). Neuro Endocrinol Lett. 2014;35 Suppl 2:57-63.
Kopp, R., Mares, J., Soukupova, Z., Navratil, S., & Palikova, M. (2014). Influence of arsenic and cyanobacteria co-exposure on plasmatic parameters of rainbow trout (Oncorhynchus mykiss W.). Neuro Endocrinology Letters, 35 Suppl 2, 57-63.
Kopp R, et al. Influence of Arsenic and Cyanobacteria Co-exposure On Plasmatic Parameters of Rainbow Trout (Oncorhynchus Mykiss W.). Neuro Endocrinol Lett. 2014;35 Suppl 2:57-63. PubMed PMID: 25638367.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Influence of arsenic and cyanobacteria co-exposure on plasmatic parameters of rainbow trout (Oncorhynchus mykiss W.). AU - Kopp,Radovan, AU - Mares,Jan, AU - Soukupova,Zdenka, AU - Navratil,Stanislav, AU - Palikova,Miroslava, PY - 2014/09/23/received PY - 2014/11/08/accepted PY - 2015/2/2/entrez PY - 2015/2/2/pubmed PY - 2015/8/12/medline SP - 57 EP - 63 JF - Neuro endocrinology letters JO - Neuro Endocrinol. Lett. VL - 35 Suppl 2 N2 - OBJECTIVES: Fish can be exposed under environmental conditions to multiple stressors including natural toxins and environmental or feed contamination at the same time. This study brings new knowledge about the effects of controlled exposure to multiple stressors in fish. The aim of this study was to test the hypothesis that influence of cyanobacterial biomass and arsenic in feed can combine to enhance the effects on fish. METHODS: Rainbow trouts were sorted into six groups, each with 25 specimens: control group (fed with commercial feed), groups exposed to toxic cyanobacterial biomass (81 mg x kg(-1) MCs of feed), two groups exposed to arsenic (concentration of 5 mg x kg(-1), and 50 mg x kg(-1) of fish feed) and two groups exposed to combination of cyanobacterial biomass and arsenic in two concentrations mentioned above. The experiment lasted 30 days. During the experiment we evaluated the influence of co-exposure on plasmatic parameters mentioned above. Samples were collected on days 10, 20 and 30 of exposure. RESULTS: Biochemical analysis revealed a significant decrease in calcium (T20) and an increase in natrium (T10) and chlorides (T10) values in combined cyanobacterial and arsenic exposures. Our results showed a significant decrease in the values of magnesium after exposure to higher concentration of arsenic compared to control and feeding with addition of cyanobacterial biomass groups. The changes of other monitored plasmatic parameters were not significantly increased or decreased in comparison with controls. CONCLUSIONS: Our results confirmed the hypothesis that influence of toxic cyanobacterial biomass and a chemical agent represented by arsenic can combine to enhance the effects on fish. This work originally shows that while the single agents in sub-lethal doses do not cause changes in the plasmatic parameters, their co-exposure leads to the significantly decrease or increase of the electrolytes of rainbow trout. SN - 0172-780X UR - https://www.unboundmedicine.com/medline/citation/25638367/Influence_of_arsenic_and_cyanobacteria_co_exposure_on_plasmatic_parameters_of_rainbow_trout__Oncorhynchus_mykiss_W___ L2 - https://medlineplus.gov/arsenic.html DB - PRIME DP - Unbound Medicine ER -