Shrimp farms as a threat to mangrove forests in Kannur district of Kerala, India

Bijith, P.; Ramith, M.; Megha, T.; Shimod, K. P.; Pradeep, M. N.

doi:10.1007/s11273-022-09896-y

Cited by 3 publications

(3 citation statements)

References 16 publications

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“…km. Shrimp pond locations in Kannur were selected by referring to the study by Bijith et al (2022). Soil and water samples were collected from the places Cherukunnu, Kunhimangalam, and Thalassery in March, and April 2022, the location map was given in Fig.…”

Section: Study Areamentioning

confidence: 99%

“…Non-traditional shrimp farming has been the major cause of the change in the physicochemical characteristics of the mangrove soil than traditional shrimp farms. Several ponds with an approximate depth of 1.5m using modern techniques and mechanized tools were constructed in mangrove land (Bijith et al 2022), making mangrove restoration more challenging. An increase in phosphorus content in traditional shrimp ponds is due to the settlement of suspended particles and excess feed during cultural activities.…”

Section: Physicochemical Characteristics Of Soil Samples Of Shrimp Po...mentioning

confidence: 99%

“…More than 60% of these forests in the Kannur district are privately owned and, therefore, highly threatened (Preethy 2019). The primary threat to the mangroves of Kannur is the continuous destruction due to the construction of shrimp ponds/aquaculture ponds (Bijith et al 2022) and recorded that the mangroves in the vast intertidal tracts of Kannur district have been reclaimed for the construction of such farms. They reported 140 active shrimp farms with a total extent of 524.4 sq.…”

Section: Introductionmentioning

confidence: 99%

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Physicochemical characteristics of shrimp ponds on mangrove ecosystems in Kannur District of Kerala, India

Krishnapriya

Bijith

Sandeep

2023

Wetlands Ecol Manage

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Mangrove forests are one of the most productive ecosystems in the world and are known for their ecological, economic, and social importance. Large-scale shrimp farming severely threatens mangrove ecosystems since shrimp productivity is correlated with mangrove ecosystems. The present study was carried out to determine the physicochemical characteristics of soil and water of traditional and nontraditional shrimp ponds near mangroves for understating the variation from the natural mangrove ecosystems of the Kannur district. Different parameters such as pH, electrical conductivity, BOD, DO, alkalinity, acidity, uoride, iron, sulphate, nitrate, calcium, magnesium, and total hardness of collected water sample and pH, electrical conductivity, nitrogen, phosphorus, potassium, organic carbon and heavy metal contents of collected soil samples were determined by respective instruments and methods. From the analysis, it was found that all the parameters of traditional, as well as non-traditional shrimp ponds showed signi cant variation from the natural mangrove ecosystems. The result from the statistical analysis, t-test, concluded that the parameters of water such as pH, temperature, alkalinity, dissolved oxygen (DO), biological oxygen demand (BOD), uoride, nitrate, and iron contents of traditional shrimp ponds, and pH, BOD, nitrate, sulphate and total hardness of non-traditional shrimp ponds signi cantly varied from its corresponding natural mangrove ecosystems. In addition, the phosphorus content in soil samples from traditional shrimp ponds and the pH, electrical conductivity, phosphorus, potassium, lead, and chromium in soil from non-traditional shrimp ponds signi cantly varied from corresponding natural mangroves. Changes in those physicochemical parameters of soil and water will affect the associated organisms and restrict further restoration of mangroves in the long term.

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Section: Study Areamentioning

confidence: 99%

Section: Physicochemical Characteristics Of Soil Samples Of Shrimp Po...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Physicochemical characteristics of shrimp ponds on mangrove ecosystems in Kannur District of Kerala, India

Krishnapriya

Bijith

Sandeep

2023

Wetlands Ecol Manage

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Effects of dredging wastewater input history and aquaculture type on greenhouse gas fluxes from mangrove sediments along the shorelines of the Jiulong River Estuary, China

Wu,

Liu,

Chen

et al. 2024

Environmental Pollution

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Physicochemical Characteristics of Shrimp Ponds on Mangrove Ecosystems in Kannur District of Kerala, India

Krishnapriya

Bijith

Sandeep

2022

Preprint

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Mangrove forests are one of the most productive ecosystems in the world and are known for their ecological, economic, and social importance. Large-scale shrimp farming severely threatens mangrove ecosystems since shrimp productivity is correlated with mangrove ecosystems. The present study was carried out to determine the physicochemical characteristics of soil and water of traditional and non-traditional shrimp ponds near mangroves for understating the variation from the natural mangrove ecosystems of the Kannur district. Different parameters such as pH, electrical conductivity, BOD, DO, alkalinity, acidity, fluoride, iron, sulphate, nitrate, calcium, magnesium, and total hardness of collected water sample and pH, electrical conductivity, nitrogen, phosphorus, potassium, organic carbon and heavy metal contents of collected soil samples were determined by respective instruments and methods. From the analysis, it was found that all the parameters of traditional, as well as non-traditional shrimp ponds showed significant variation from the natural mangrove ecosystems. The result from the statistical analysis, t-test, concluded that the parameters of water such as pH, temperature, alkalinity, dissolved oxygen (DO), biological oxygen demand (BOD), fluoride, nitrate, and iron contents of traditional shrimp ponds, and pH, BOD, nitrate, sulphate and total hardness of non-traditional shrimp ponds significantly varied from its corresponding natural mangrove ecosystems. In addition, the phosphorus content in soil samples from traditional shrimp ponds and the pH, electrical conductivity, phosphorus, potassium, lead, and chromium in soil from non-traditional shrimp ponds significantly varied from corresponding natural mangroves. Changes in those physicochemical parameters of soil and water will affect the associated organisms and restrict further restoration of mangroves in the long term.

show abstract

Shrimp farms as a threat to mangrove forests in Kannur district of Kerala, India

Cited by 3 publications

References 16 publications

Physicochemical characteristics of shrimp ponds on mangrove ecosystems in Kannur District of Kerala, India

Physicochemical characteristics of shrimp ponds on mangrove ecosystems in Kannur District of Kerala, India

Effects of dredging wastewater input history and aquaculture type on greenhouse gas fluxes from mangrove sediments along the shorelines of the Jiulong River Estuary, China

Physicochemical Characteristics of Shrimp Ponds on Mangrove Ecosystems in Kannur District of Kerala, India

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