scholarly journals Economic and Environmental Analysis of Shrimp Farming in Chilika Lake, India

2015 ◽  
Vol 7 (2) ◽  
pp. 5-16
Author(s):  
Mishra Lopamudra
Keyword(s):  
Crop Production ◽  
Agricultural Land ◽  
Economic Benefits ◽  
Culture Industry ◽  
Shrimp Farming ◽  
Shrimp Culture ◽  
Shrimp Ponds ◽  
Chilika Lake ◽  
Regional Community ◽  
Shrimp Farms

Abstract The shrimp culture industry around Chilika Lake has expanded in the last two decades under the rationale of providing economic benefits at national, regional, community and household levels. Salinisation and pollution of agricultural land especially rice paddies by seepage usually ruin crops and render the land unsuitable for agriculture. As a result there is the decline in the yield rate, which led to the conversion of agricultural land to shrimp ponds. After the shrimp culture for some years the land will be unable to support any natural or agricultural productivity. In due course, these shrimp ponds are abandoned being fit for nothing. The lack of emphasis on enforcement of different legislation, particularly environmental legislation, has allowed the shrimp farms to operate in and around the lake using culture practices that degrade the environment. Thus, the problem with the state is not a lack of legislation, but an unwillingness or inability to enforce it. As a result of this, an established livelihood system is broken down as land with multiple agricultural uses is turned over to mono-crop production. This in turn will lead to abandoned land, which is of no use after few years.

scholarly journals Digital database on shrimp farming in coastal watershed of Cuddalore District, Tamil Nadu

2017 ◽  
Vol 64 ◽  
Author(s):  
P. Nila Rekha ◽  
R. Gangadharan ◽  
Shirley Dharshini ◽  
Wilmart Clark ◽  
G. Ramanathan ◽  
...  
Keyword(s):  
Tamil Nadu ◽  
Management Practices ◽  
Spatial Database ◽  
Economic Benefits ◽  
Shrimp Farming ◽  
Digital Information ◽  
Shrimp Culture ◽  
Coastal Watershed ◽  
Environmental Guidelines ◽  
Shrimp Farms

Brackishwater shrimp farming is essentially a coastal farming activity, making use of the marginal land and water resources resulting in economic benefits, providing livelihood option for the coastal poor and contributing to the national GDP. Getting successful crop by the farmers is indeed a great accomplishment since the disease threat always hovers around shrimp culture. This warrants the adoption of better management practices starting from the pond construction till the harvest of the shrimp with a collective action among the shrimp farmers in a cluster of farms with respect to stocking, adoption of biosecurity measures, disease management and discharge of treated water. For practically enforcing this through farmers’ associations, development of spatial database is a prerequisite and it is a relatively easy task in this age of information revolution. With this background, a digital information system has been built using ArcGIS 10.0 for the shrimp farms in the coastal watershed of Cuddalore District in TamilNadu primarily to aid farmers. The developed spatial database contains information about all the shrimp farms in Cuddalore District and it has been digitised from GeoEye with the cadastral map in the scale of 1:5000. A total of 4 km2 of shrimp farm area with 351 individual ponds spread over six clusters of farms has been digitised with their survey number. Field surveys were conducted to verify the satellite data. Details of the farms’were collected using a structured questionnaire and have been incorporated in thedatabase. Using this database both spatial and statistical information can be analysed and managed for querying, decision making and resource management. This digital information will also be handy for the policymakers for licensing the farm, monitoring growth and to enforce environmental guidelines.

scholarly journals Autonomous water-cleaning machine using solar energy in shrimp ponds

2012 ◽  
Vol 3 (1) ◽  
pp. 30-33
Author(s):  
Thien Ngon Dang
Keyword(s):  
Water Quality ◽  
Water Exchange ◽  
Water Quality Management ◽  
Shrimp Farming ◽  
Coliform Bacteria ◽  
Viet Nam ◽  
Shrimp Culture ◽  
Shrimp Ponds ◽  
Water Cleaning ◽  
Cleaning Machine

Limited water exchange shrimp culture technology is commonly used today in many shrimp farms in Vietnam to reduce water usage, input of diseases and discharge of nutrient-rich effluents into environment as well as to increase the production per unit area. However, a remaining problem in this technology is that the water quality in shrimp ponds will be reduced due to limitation of water exchange for a long period. The accumulation of inorganic components such as waste feed, bacterial deposits or other biological debris at the pond bottom will lead to low dissolved oxygen, high ammonia-nitrogen level, high fecal coliform bacteria and high turbidity which cause a severe degradation of water quality and detriment to shrimp growth and survival. To solve this remaining problem, an autonomous water-cleaning machine for shrimp ponds was designed to control the waste accumulation in the pond. This is an effective solution to replace manual cleaning methods for water quality management in shrimp farming in the coastal area of the Mekong delta of Vietnam. Especially, this technique can be used for biosecure shrimp production systems according to GMP standards to meet the objectives for sustainable development of shrimp aquaculture in Vietnam. Kỹ thuật nuôi tôm không thay nước đang được sử dụng rộng rãi ở các trại nuôi tôm Việt Nam vì giúp giảm lượng nước sử dụng, hạn chế thải nước vào môi trường và giúp tăng diện tích nuôi trồng tôm. Tuy nhiên, bản thân kỹ thuật này cũng tạo nên một sản phẩm chất thải là phân tôm, thức ăn và chế phẩm sinh học xử lý nước dư thừa. Chất thải này dần dần tích tụ dưới đáy ao tạo thành lớp bùn độc, rất thiếu ôxy và chứa nhiều chất gây hại như ammonia, nitrite, hydrogen sul-fide. Để tránh làm giảm diện tích ao nuôi do chất thải tích tụ làm tôm lảng tránh và tăng mật độ tôm nuôi trồng, thiết bị tự hành thu gom chất thải làm sạch nước trong vuông nuôi tôm đã được nghiên cứu, thiết kế và chế tạo thành công. Thiết bị đã thay thế các hoạt động làm sạch chất thải thủ công của con người, không sử dụng các nguồn năng lượng gây ô nhiễm, giảm nhu cầu về điện góp phần phát triển sản xuất tôm sạch đạt chuẩn GMP và phát triển bền vững ở các tỉnh ven biển miền Tây Việt Nam.

scholarly journals Impact of Salinity Intrusion on Coastal Agriculture and Farmer’s Livelihoods in Bangladesh

2021 ◽  
pp. 52-60
Author(s):  
Md. Anowarul Islam
Keyword(s):  
Low Income ◽  
Agricultural Land ◽  
Public Awareness ◽  
Secondary Data ◽  
Shrimp Farming ◽  
Primary Data ◽  
Salinity Intrusion ◽  
Shrimp Culture ◽  
Mapping Tool ◽  
Study Sites

The main objective of this study is to explore the major impacts of salinity intrusion on coastal agriculture and farmer’s livelihoods in Bangladesh. The study has attempted to identify some effective measures for the sustainability of coastal agriculture. The study was conducted based on both primary and secondary data during 2010-2020. To collect primary data, a total of 150 respondents out of 240 households were randomly interviewed and samples are drawn proportionately from study sites. Descriptive and inferential statistics have been done to analyze data. The ArcGIS mapping tool was adopted to represent the spatio-temporal change of saline area. It reveals that due to high salinity intrusion the coastal agriculture has already experienced noticeable adverse impacts especially in increasing rate of salinity, loss in cultivable land and production. Shrimp farming with brackish water and tidal inundation are explored as the main causes for salinity intrusion. In study sites, the level of salinity in 2020 is much stronger than in 2010. It reveals that due to strong salinity in agricultural land the farmer's are suffering from low income, unemployment, scarcity in irrigation and freshwater. It was identified that the planned shrimp culture, management of the embankment, cultivation of saline tolerant crops and raising public awareness will be the possible measures to control the intrusion of salinity. Therefore, it is expected that the evaluation of the revealed impacts of salinity intrusions and the explored measures will be effective to ensure the sustainability of coastal agriculture in Bangladesh. 

scholarly journals Perception-based Indicator for Sustainability of Shrimp Culture in the Less Favorable Areas at Southern Coast of Yogyakarta

2019 ◽  
Vol 21 (2) ◽  
pp. 53
Author(s):  
Suadi Suadi ◽  
Hery Saksono ◽  
Bambang Triyatmo
Keyword(s):  
Development Project ◽  
Culture Industry ◽  
Environmental Indicators ◽  
Shrimp Farming ◽  
Rapid Expansion ◽  
Economic Indicators ◽  
High Price ◽  
Southern Coast ◽  
Literature Study ◽  
Shrimp Culture

Shrimp farming has been introduced since the mid-1980s at the southern coast of Daerah Istimewa Yogyakarta (DIY). However, the industry was not well growing in the initial stage. The new shrimp development project also promoted in the early of 2000s, particularly in Jangkaran Village, Subdistrict of Temon, Kulon Progo District and Poncosari Village, Subdistrict of Srandakan, Bantul District, but many of shrimp farms fail because of shrimp diseases, lack of capital to recover and shrimp farming experiences. Recently, the shrimp culture industry experienced rapid expansion along the coast of the two districts. This study aimed to determine the profile and growing of shrimp farming at the southern coast of DIY and to identify the technical aspects, social, and economic indicators of sustainable shrimp culture in the less favorable areas. To identify the sustainability of current shrimp culture, the study develop four indicators consist of technical indicators (6 sub-indicators), economic indicators (9 sub-indicators), social indicators (7 sub-indicators), and environmental indicators (8 sub-indicator). The study was conducted during March to October 2014 by using a combination of literature study and survey at two selected villages: Jangkaran and Poncosari Villages. The total 82 respondents were interviewed; consist of shrimp farmers, coastal communities, community leaders, and local government. The study showed that the rapid growing of shrimp farming were caused by several factors, among others: (1) the existence of technological innovation in shrimp farming in the sandy soil areas, particularly the lower cost in the pond investment and the more easier of seawater collecting; (2) high price and market opportunities of the commodity; and (3) changes in the physical environment due to the threat of coastal erosion which damage the fisher livelihood, thus demanding adaptation strategies. Shrimp farmer in average managed 2,138 m2 and implemented intensive to super intensive cultivation technology, with an average stocking density of 144 shrimp/m2. Production per year in average reaches 25.9 ton/ha and generating revenue of IDR286.544.232 per year. The total cost of production is estimated at IDR210.590.175 per year, and generated a net profit of IDR75.954.057 per year. The perception based indicator of sustainability showed the environmental related issues were in average have a low value. Thus, environmental regulation of aquaculture is an important aspect to be considered in promoting sustainable development of shrimp farming at the southern coast of the province.

Destruction of mangroves for shrimp ponds.

2020 ◽  
Author(s):  
Md. Abdus Shahid
Keyword(s):  
Mangrove Forest ◽  
Soil Acidity ◽  
Coastal Region ◽  
Shrimp Farming ◽  
Mangrove Forests ◽  
Salt Tolerant ◽  
Shrimp Culture ◽  
Shrimp Ponds ◽  
Plant Life ◽  
Vast Area

Abstract The Bangladesh coastal region located at the apex of the Bay of Bengal is endowed with a vast area of mangrove forests covering about 6,900 km2. Mangroves are a group of salt-tolerant trees and other plant species which thrive in the inter-tidal zones of sheltered tropical shores, islands and estuaries. They have specially adapted aerial and salt-filtering roots and salt-excreting leaves that enable them to occupy the saline wetlands where other plant life cannot survive. This forest ecosystem plays an important role for coastal inshore as well as offshore fisheries as it provides food and nursery grounds. Unfortunately, mangrove forests are being denuded for shrimp culture. An important example of mangrove denudation is the Chakaria Sundarban where 8,540 ha of mangrove forest has been encroached upon by shrimp farming. The production of shrimp in the mangrove-cleared area has gradually decreased due to increasing soil acidity and decreasing mangrove litter fall in the area. During the period 1975-2001, a total of 9,734 ha of mangrove forest (less than 2% of the total mangrove forest area of the country) was found to be denuded due to shrimp farming along the Bangladesh coast. Although denudation of mangrove forests is negligible compared to other countries of the region, it is creating environmental problems in the coastal region of Bangladesh.

scholarly journals ANTIBIOTICS AND PESTICIDES IN WATER AND SEDIMENTS FROM INTENSIVE SHRIMP FARMS IN SOUTHERN VIETNAM

2018 ◽  
Vol 54 (4B) ◽  
pp. 146
Author(s):  
Nguyen Truong An
Keyword(s):  
Mekong Delta ◽  
Shrimp Farming ◽  
Organic Chemical ◽  
Production Cycle ◽  
Shrimp Ponds ◽  
Low Concentrations ◽  
Pesticides In Water ◽  
Shrimp Industry ◽  
Negative Impacts ◽  
Shrimp Farms

In recent years, shrimp farming has developed rapidly and become one of the major export sectors of Vietnam. In particular, Mekong Delta Vietnam (MDVN) accounts for over 90 % shrimp farming area in Vietnam. Shrimp industry development leads to use a large amount of antibiotics (ABs) and pesticides for disease prevention, treatment and sanitation pond. These compounds are usually discharged directly into the environment through water and sludge after harvesting. The presence of antibiotics and pesticides in the environment cause negative impacts on ecosystems and human health. In this study, the passive sampling method with POCIS sampler (Polar Organic Chemical Integrative Samplers) was used to monitor the presence of 12 ABs and 2 pesticides in water of intensive shrimp ponds and the surrounding canals at Tan Tru District (Long An province) and Can Gio District (Ho Chi Minh city) following a production cycle. The results showed that ABs and pesticides were detected in water and sediment in the pond and canals in both research sites. Two pesticides (atrazine and diuron) were detected in the pond and leading canals in both study areas with low concentrations from several ng/L to several tens of ng/L. In Tan Tru, three antibiotics (Trimethoprim, Sulfamethoxazole and Enrofloxacin) were detected in water at concentrations ranging from several tens of ng/L to 300 ng/L; in sediments of shrimp pond and canal the levels of pesticides and ABs ranged from 10 to 200 µg/kg. In Can Gio - HCMC, 4 ABs (Trimethoprim, Sulfamethoxazole, Ciprofloxacin and Enrofloxacin) were detected ranging from a few ng/L to several µg/L in water, and a few mg/kg in sediments of the pond. The results also showed that in the pond, ABs type and concentration detection varied by region and shrimp growth cycles.

scholarly journals Farmers’ Perceptions of Tree Shelterbelts on Agricultural Land in Rural Kyrgyzstan

2020 ◽  
Vol 12 (3) ◽  
pp. 1093 ◽  
Author(s):  
Daniel Ruppert ◽  
Martin Welp ◽  
Michael Spies ◽  
Niels Thevs
Keyword(s):  
Crop Production ◽  
Agricultural Land ◽  
Crop Yields ◽  
Farming Systems ◽  
Agroforestry Systems ◽  
Economic Benefits ◽  
Sustainable Land Use ◽  
Main Concern ◽  
Structured Interviews ◽  
Trade Offs

The reestablishment of agroforestry systems in Central Asia, combining crop production with protective tree shelterbelts, provides significant potential to improve farming systems. This includes increasing crop yields, additional income from timber, as well as reducing soil degradation and wind erosion. Thus, adopting shelterbelts as a form of pro-environmental behavior provides a number of socio-economic benefits, although some trade-offs need to be considered as well. This paper investigates factors that shape the perception of—and attitude towards—the establishment of tree shelterbelts by farmers in two case study regions in Kyrgyzstan. Applying a conceptual framework distinguishing between extrinsic and intrinsic factors, research methods included semi-structured interviews with farmers and local policy makers. The results show spatial differences in the perception of shelterbelts, both on the regional and on the village scale. In general, shelterbelts were negatively perceived by more than half of the farmers. The main concern raised by farmers was the shading of crops by shelterbelts, resulting in a decrease of yield. In addition, small field sizes and potential conflicts with neighbors were key concerns. Furthermore, rules set by local self-government bodies were inconsistent with the legislative framework, posing significant restrictions to the adoption of sustainable land use practices.

scholarly journals ESTIMATION OF MANGROVE NEEDS IN SUPPORTING ACTIVITIES OF NTENSIVE SHRIMP FARM IN BANYUPUTIH DISTRICT SITUBONDO REGENCY

2018 ◽  
Vol 9 (1) ◽  
pp. 31-36
Author(s):  
Abdul Muqsith ◽  
Nurdin Harahab ◽  
Mohammad Mahmudi ◽  
Muhammad Fadjar
Keyword(s):  
Carrying Capacity ◽  
Coastal Waters ◽  
Field Survey ◽  
Shrimp Farming ◽  
Shrimp Ponds ◽  
Shrimp Pond ◽  
Mangrove Area ◽  
Survey Results ◽  
Water Disposal ◽  
Shrimp Farms

Intensive shrimp farms need mangroves to increase the carrying capacity of their waters. Every 1 Ha of intensive shrimp pond requires 7.2 Ha mangrove to absorb nitrogen (N) and 21,7 Ha to absorb phosphor (P) from waste water disposal. This study was conducted to estimate the extent of lmangrove required to absorb nitrogen (N) and phosphorus (P) wastes removed from intensive shrimp farming in Banyuputih Subdistrict of Situbondo Regency. From the field survey results obtained data on the area of ​​productive intensive ponds in the District Banyuputih is 39 Ha. The result of data analysis indicate that 280,3 Ha mangrove is needed to support the absorption of nitrogen (N) and 846,3 Ha mangrove to absorb phosphorus (P) of effectiveness pond waste pond in the study area. The mangrove in this subdistrict of Banyuputih (540,18 Ha) still support in the absorption of nitrogen waste (N), but for the absorption of phosphorus posfor (P) ponds still needed reforestation of at least 304,12 Ha from the existing mangrove area. If the local government intends to develop intensive shrimp ponds in accordance with the carrying capacity or maximum capacity of coastal waters of Banyuputih in decomposing 58 ha of tambak organic ponds, the current mangrove condition (540.18 Ha) still supports the absorption of nitrogen (N) from ponds intensively covering an area of ​​58 Ha, but to absorb the posfor (P) lagoon is still needed addition (reforestation) of 718.42 Ha.

scholarly journals Experimental operation and performance evaluation of waste remover in aquaculture ponds

2020 ◽  
Vol 3 (SI1) ◽  
pp. First
Author(s):  
Le The Truyen ◽  
Le Thanh Long
Keyword(s):  
Water Quality ◽  
New Technologies ◽  
Quality Parameters ◽  
Shrimp Farming ◽  
Water Quality Parameters ◽  
Water Quality Criteria ◽  
Shrimp Culture ◽  
Shrimp Ponds ◽  
Suction Device ◽  
Culture Environment

The development of new technologies in automation to increase labor productivity has been increasingly enhanced in recent decades. The problem of cleaning water in shrimp ponds greatly affects the quality as well as shrimp production. Environmental pollution of shrimp farming is a matter of concern because the current waste treatment solutions are not yet thorough. A waste remover of shrimp waste combined with the pond bottom siphon method has been researched and developed to increase the ability to thoroughly handle waste generated in the culture environment. This device helps to automate the manual cleaning of the pond bottom by farmers. The device performs operations to clean waste, suck, filter, and remove waste from the culture environment. This device is self-propelled or manually controlled and operates in all weather conditions. This article introduces the process of testing and evaluating the efficiency of waste extraction equipment in shrimp ponds. The device was tested at a super-intensive shrimp farm and evaluated for operational efficiency. The experimental model consists of a shrimp pond operating a waste suction device, a control pond, an automatic monitoring system of water quality parameters (DO, H2S, NH3, pH, and temperature). Experimental ponds operating waste disposal equipment, control ponds are manually cleaned, other farming conditions of the two ponds are similar. The impacts of waste on the shrimp culture environment are determined through analyzing the results of measuring water quality criteria in the pond, thereby assessing the efficiency of waste removal of the equipment. The measurement results show that water quality parameters reach a value within the threshold if operating a waste suction device once per day. The benefits of waste remover operate to help save the cost of labor to clean the pond bottom, protect workers' health.

scholarly journals STUDI KESESUAIAN LAHAN TAMBAK UDANG WINDU (PENAEUS MONODON) DI DESA OENSULI KECAMATAN KABANGKA KABUPATEN MUNA SULAWESI TENGGARA

2021 ◽  
Vol 13 (1) ◽  
pp. 141-150
Author(s):  
Trial Fiar Erawan
Keyword(s):  
Water Quality ◽  
Penaeus Monodon ◽  
Shrimp Farming ◽  
Limiting Factors ◽  
Eligibility Criteria ◽  
Shrimp Ponds ◽  
Land Quality ◽  
Tiger Shrimp ◽  
Measurement Results ◽  
Shrimp Farms

The success of tiger shrimp farming in Oensuli Village's fishponds will be achieved if its location meets the criteria for tiger shrimp farming. Therefore it is important to conduct this research to find out the level of suitability of the actual land of tiger shrimp farms that are managed with high, and low production in Oensuli Village, Muna Regency. The method used is to compare the measurement results or the results of data analysis with the eligibility criteria/land quality for tiger shrimp farming. The results of this study illustrate the suitability of the actual land of tiger shrimp ponds with high and low production, as well as on land that has not been converted to ponds, it is obtained that the class category is quite appropriate (S2a1.2h), which means that there are water quality limiting factors such as temperature and brightness, and different tides ebbs are too high.

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