Impact of shrimp aquaculture development on important ecosystems in India

Jayanthi, M.; Thirumurthy, S.; Muralidhar, M.; Palaniappan, Ravichandran

doi:10.1016/j.gloenvcha.2018.05.005

Cited by 83 publications

(43 citation statements)

References 36 publications

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“…Therefore, aquaculture practices must use aquaculture systems that minimize waste loads and increase added value 1 , 3 , 35 , 36 . In fact, the diversification of aquaculture systems with the efficient use of land resources can increase aquaculture production 28 , 37 . The comparisons between concrete ponds, floating net cages and earthen freshwater ponds are relevant to determine their relative per unit volume performance of juveniles-rearing of gurami sago.…”

Section: Discussionmentioning

confidence: 99%

Growth, production and feed conversion performance of the gurami sago (Osphronemus goramy Lacepède, 1801) strain in different aquaculture systems

Azrita

Aryani²,

Mardiah³

et al. 2020

F1000Res

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Giant gourami ( ), Background:Osphronemus goramy, Osphronemidae belonging to the gurami sago strain, is an important economic fish species that was newly released for domestication in 2018 in Indonesia. The present study aimed to determine the growth, production and feed conversion efficiency of gurami sago strain in different aquaculture systems.A mean of 240 juveniles were stocked (mean, 54.53 g and 13.88 Methods: cm) into concrete ponds, floating net cages and earthen freshwater ponds (12 m ) with three replicates of each. The juveniles were fed a floating commercial pellet diet containing 30% crude protein and 5% crude lipids. Feed was supplied at 3% of fish biomass per day throughout the 90 days of the experiment. The research was conducted in the area surrounding Lake Maninjau of West Sumatera Province, Indonesia.After 90 days, the mean weight of fish reared in concrete ponds Results: was 166.86 g, floating net cages was 179.51 g and earthen freshwater ponds was 149.89 g. The mean final biomass was 37.64 kg for concrete ponds, 41.27 kg for floating net cages, and 33.72 kg for earthen freshwater ponds. The specific growth rates (%/day) for concrete ponds, floating net cages and earthen freshwater ponds were 0.67, 0.75 and 0.62, respectively. The feed conversion rates were 1.45 for concrete ponds, 1.30 for floating net cages and 1.87 for earthen freshwater ponds. The net yields (kg m ) were 2.05 for concrete ponds, 2.27 for floating net cages, and 1.73 for earthen freshwater ponds. The exponents (b) of the length-weight relationship were calculated for concrete ponds (1.0146), floating net cages (1.2641), and earthen freshwater ponds (1.0056).The study showed that the growth performance, production Conclusion: and feed conversion efficiency of the gurami sago strain could be considered a new candidate strain for floating net cage aquaculture in the future. , Technical University

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Section: Discussionmentioning

confidence: 99%

Growth, production and feed conversion performance of the gurami sago (Osphronemus goramy Lacepède, 1801) strain in different aquaculture systems

Azrita

Aryani²,

Mardiah³

et al. 2020

F1000Res

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“…The rapid growth in the sector has led to increased employment, significant economic benefits and improved food security. However, the sector is now faced with challenges to the continued sustainability of this growth and threats to livelihoods due to growing concerns about overfishing, depleted stocks, decreasing catch rates for some species, degradation of habitats and resources, illegal, unreported, unregulated fishing and stock depletion in the wild catch sector and in the aquaculture sector, concerns about landscape destruction, soil and water pollution, biodiversity loss, mangrove destruction, and effect of chemical use (Bhavsar et al 2016;Jayanthi et al 2018).…”

Section: Growth and Development Of The Sectormentioning

confidence: 99%

Charting a Path Towards Sustainable Seafood Resources in India: The Role of Voluntary Sustainable Standards

Oloruntuyi

Mohamed

Malayilethu

et al. 2019

Palgrave Studies in Indian Management

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“…Over the period 1990-2017, aquaculture ponds increased significantly by 3.57 km 2 ( Figure 5) and most were established in mudflat areas (Figures 4 and 6). Diseases caused by aquaculture have a negative effect on mangrove forests [52]. The untreated water discharged by aquaculture can bring more pressures against the nutrient load in water bodies.…”

Section: Mangrove Forest Losses Associated By Human Activities and Pomentioning

confidence: 99%

Dynamic Analysis of Mangrove Forests Based on an Optimal Segmentation Scale Model and Multi-Seasonal Images in Quanzhou Bay, China

Liu

Jia

et al. 2018

Remote Sensing

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Mangrove forests are important coastal ecosystems and are crucial for the equilibrium of the global carbon cycle. Monitoring and mapping of mangrove forests are essential for framing knowledge-based conservation policies and funding decisions by governments and managers. The purpose of this study was to monitor mangrove forest dynamics in the Quanzhou Bay Estuary Wetland Nature Reserve. To achieve this goal, we compared and analyzed the spectral discrimination among mangrove forests, mudflats and Spartina using multi-seasonal Landsat images from 1990, 1997, 2005, 2010, and 2017. We identified the spatio-temporal distribution of mangrove forests by combining an optimal segmentation scale model based on object-oriented classification, decision tree and visual interpretation. In addition, mangrove forest dynamics were determined by combining the annual land change area, centroid migration and overlay analysis. The results showed that there were advantages in the approaches used in this study for monitoring mangrove forests. From 1990 to 2017, the extent of mangrove forests increased by 2.48 km2, which was mostly converted from mudflats and Spartina. Environmental threats including climate change and sea-level rise, aquaculture development and Spartina invasion, pose potential and direct threats to the existence and expansion of mangrove forests. However, the implementation of reforestation projects and Spartina control plays a substantial role in the expansion of mangrove forests. It has been demonstrated that conservation activities can be beneficial for the restoration and succession of mangrove forests. This study provides an example of how the application of an optimal segmentation scale model and multi-seasonal images to mangrove forest monitoring can facilitate government policies that ensure the effective protection of mangrove forests.

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Impact of shrimp aquaculture development on important ecosystems in India

Cited by 83 publications

References 36 publications

Growth, production and feed conversion performance of the gurami sago (Osphronemus goramy Lacepède, 1801) strain in different aquaculture systems

Growth, production and feed conversion performance of the gurami sago (Osphronemus goramy Lacepède, 1801) strain in different aquaculture systems

Charting a Path Towards Sustainable Seafood Resources in India: The Role of Voluntary Sustainable Standards

Dynamic Analysis of Mangrove Forests Based on an Optimal Segmentation Scale Model and Multi-Seasonal Images in Quanzhou Bay, China

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