<abstract xmlns="http://www.w3.org/1999/xhtml">
Season and water quality are essential indicators in the life cycle of pond ecosystems. The season is a natural factor affecting the level of water quality dynamics in shrimp cultivation in ponds. This study aims to evaluate the dynamics of differences in water quality parameters in intensive <italic>Litopenaeus vannamei</italic> ponds during dry and rainy seasons. This current study applied an <italic>ex post facto</italic> causal design based on actual field conditions. During the rainy season, water quality parameters tended to fluctuate dynamically, with the parameters of phosphate (PO4), nitrite (NO2), and total organic matter (TOM) exceeding the threshold value of water quality standards for aquaculture, with a PO4 value of 0.734 mg/L, a NO2 of 0.180 mg/L, and a TOM of 101.29 mg/L. In the dry season, water quality parameters remained stable, with only the phosphate parameter showing a value above the water quality standard threshold of 0.633 mg/L. Based on the trend of fluctuations in the two seasons, a model of equation Y = 3.979 + 0.814x was made with a significance value &lt;α (0.05), which means that the two seasons positively correlated with the impact on fluctuations of water quality in the ponds. The results of the dynamic modelling analysis showed contradictions in water quality and nutrients during rainy and dry seasons. Water quality parameters in intensive <italic>L. vannamei</italic> cultivation during dry and rainy seasons fluctuated dynamically and differed according to the type of weather conditions and the current season.
</abstract>

Season and water quality are essential indicators in the life cycle of pond ecosystems. The season is a natural factor affecting the level of water quality dynamics in shrimp cultivation in ponds. This study aims to evaluate the dynamics of differences in water quality parameters in intensive Litopenaeus vannamei ponds during dry and rainy seasons. This current study applied an ex post facto causal design based on actual field conditions. During the rainy season, water quality parameters tended to fluctuate dynamically, with the parameters of phosphate (PO4), nitrite (NO2), and total organic matter (TOM) exceeding the threshold value of water quality standards for aquaculture, with a PO4 value of 0.734 mg/L, a NO2 of 0.180 mg/L, and a TOM of 101.29 mg/L. In the dry season, water quality parameters remained stable, with only the phosphate parameter showing a value above the water quality standard threshold of 0.633 mg/L. Based on the trend of fluctuations in the two seasons, a model of equation Y = 3.979 + 0.814x was made with a significance value <α (0.05), which means that the two seasons positively correlated with the impact on fluctuations of water quality in the ponds. The results of the dynamic modelling analysis showed contradictions in water quality and nutrients during rainy and dry seasons. Water quality parameters in intensive L. vannamei cultivation during dry and rainy seasons fluctuated dynamically and differed according to the type of weather conditions and the current season.

Water Quality Fluctuations in Shrimp Ponds During Dry and Rainy Seasons

Department of Aquaculture, Faculty of Fisheries

Department of Aquaculture, Faculty of Agriculture

Croatian Journal of Fisheries

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

{"article-title":"Water Quality Fluctuations in Shrimp Ponds During Dry and Rainy Seasons"}

Season and water quality are essential indicators in the life cycle of pond ecosystems. The season is a natural factor affecting the level of water quality...

Water Quality Fluctuations in Shrimp Ponds During Dry and Rainy Seasons

Published Online: Sep 06, 2023

Page range: 127 - 137

Received: Mar 14, 2023

Accepted: Apr 17, 2023

DOI: https://doi.org/10.2478/cjf-2023-0014

Keywords
Modelling, Season, Nutrients, Weather

© 2023 Heri Ariadi et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Water Quality Fluctuations in Shrimp Ponds During Dry and Rainy Seasons

Published Online: Sep 06, 2023

Page range: 127 - 137

Received: Mar 14, 2023

Accepted: Apr 17, 2023

DOI: https://doi.org/10.2478/cjf-2023-0014

KeywordsModelling, Season, Nutrients, Weather

© 2023 Heri Ariadi et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Keywords
Modelling, Season, Nutrients, Weather