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Journals / Turkish Journal of Veterinary and Animal Sciences / 2009 / Cilt: 33 - Sayı: 3

Seasonal changes in condition, hepatosomatic index and parasitism in sterlet (Acipenser ruthenus L.)

Mirjana LENHARDT
Ivan JARIC
Predrag CAKIC
Gorcin CVIJANOVIC
Zoran GACIC
Pages
209–214
Publication Date
2009-03-01
DOI
—
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Better understanding of the life cycle of S. semiarmatus and sensitivity of different phases to pollution is needed.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:Measurements of biomarker responses in fish from contaminated sites could provide valuable data for environmental risk assessment.
📊
Key Findings & Data:Therefore, juvenile sterlet (Acipenser ruthenus L.) specimens were collected on a monthly basis from the Danube River from September 2002 through August 2003 to determine if seasonal changes exist in condition, hepatosomatic index, and parasitism.
💡
Conclusion & Impact:Better understanding of the life cycle of S. semiarmatus and sensitivity of different phases to pollution is needed.
🔬Design:Research Article
📍Scope:2002 Verileri
⚙️Variables:Danube River · Fulton condition factor · hepatosomatic index

Abstract

Measurements of biomarker responses in fish from contaminated sites could provide valuable data for environmental risk assessment. Biomarkers are sensitive to both environmental pollution and confounding factors that are not related to pollution (e.g., season, nutritional status, and population density). Unfortunately, data about the latter group are scarce. Therefore, juvenile sterlet (Acipenser ruthenus L.) specimens were collected on a monthly basis from the Danube River from September 2002 through August 2003 to determine if seasonal changes exist in condition, hepatosomatic index, and parasitism. Fulton condition factor (FCF range: 0.27 - 0.79), hepatosomatic index (HSI range: 1.14 - 6.67) and Skrjabinopsolus semiarmatus parasite prevalence (range: 37.9 - 85.7 %), intensity (range: 1 - 337 parasites per fish) and the mean intensity (range 9.6 - 89.2) in sterlet showed significant seasonal variations. This study pointed out that biomarker sampling on different locations has to be performed within the short time frame in order to avoid differences generated by confounding factors. Better understanding of the life cycle of S. semiarmatus and sensitivity of different phases to pollution is needed.

Özet

Measurements of biomarker responses in fish from contaminated sites could provide valuable data for environmental risk assessment. Biomarkers are sensitive to both environmental pollution and confounding factors that are not related to pollution (e.g., season, nutritional status, and population density). Unfortunately, data about the latter group are scarce. Therefore, juvenile sterlet (Acipenser ruthenus L.) specimens were collected on a monthly basis from the Danube River from September 2002 through August 2003 to determine if seasonal changes exist in condition, hepatosomatic index, and parasitism. Fulton condition factor (FCF range: 0.27 - 0.79), hepatosomatic index (HSI range: 1.14 - 6.67) and Skrjabinopsolus semiarmatus parasite prevalence (range: 37.9 - 85.7 %), intensity (range: 1 - 337 parasites per fish) and the mean intensity (range 9.6 - 89.2) in sterlet showed significant seasonal variations. This study pointed out that biomarker sampling on different locations has to be performed within the short time frame in order to avoid differences generated by confounding factors. Better understanding of the life cycle of S. semiarmatus and sensitivity of different phases to pollution is needed.

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Cite This Article

LENHARDT, M., JARIC, I., CAKIC, P., CVIJANOVIC, G., GACIC, Z. (2009). Seasonal changes in condition, hepatosomatic index and parasitism in sterlet (Acipenser ruthenus L.). Turkish Journal of Veterinary and Animal Sciences, Cilt: 33 - Sayı: 3, 209–214. https://ajindex.com/articles/122124

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References (5)

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