scholarly journals Impact of Shrimp Farming on Mangrove Forest and Other Coastal Wetlands: The Case of Mexico

10.5772/30990 ◽  
2011 ◽  
Author(s):  
Cesar Alejandro ◽  
Arturo Ruiz-Luna ◽  
Rafael Hernandez-Guzma
Keyword(s):  
Coastal Wetlands ◽  
Mangrove Forest ◽  
Shrimp Farming

Emerging pressure on mangrove forest environments as a result of shrimp farming expansion - A remote sensing based analyses for an exemplary coastal site at the Pacific coast in South America

2020 ◽  
Author(s):  
Marco Ottinger ◽  
Felix Bachofer ◽  
Soner Uereyen ◽  
Juliane Huth
Keyword(s):  
Food Security ◽  
South America ◽  
Mangrove Forest ◽  
Earth Observation ◽  
Shrimp Farming ◽  
Series Data ◽  
Coastal Protection ◽  
World Population ◽  
Coastal Regions ◽  
Shrimp Farms

<p>Given the growing world population and rising demand for fish and seafood, aquaculture is becoming the main source of aquatic food in human consumption and a primary protein source for millions of people. Since 1990, the world aquaculture production increased from 13 to over 80 million tonnes and is currently valued at USD 231 billion. The cultivation of shrimp species in land-based ponds is one of the fastest growing food production economies and became an important industry in coastal regions, generates income and employment and contributes to food security. Shrimp farms are mainly found in low-lying coastal regions such as estuaries, bays and river deltas along the shorelines of Asia and America. Shrimp farming expanded rapidly in recent years and led to environmental degradation and conversion of valuable wetlands such as mangroves and other coastal forests. The loss of mangroves poses a major threat to coastal ecosystems and population, as mangroves provide valuable flood and coastal protection, as well as risk reduction benefits with regard to global climate change induced effects.</p><p>In this research, we use image segmentation for temporal features derived from space-borne, high-resolution synthetic aperture radar (SAR) data to extract shrimp farming ponds in coastal mangrove forest areas in Ecuador, South America. An automatic object-based image processing approach aims for the detection of rectangular shaped pond objects utilizing per-pixel median images calculated from C-band Sentinel-1 and L-band ALOS-Palsar SAR time series data. An open source connected component segmentation algorithm was used to extract and locate rectangular shrimp farms in coastal areas based on backscatter intensity and shape features. This study illustrates the opportunities by earth observation for area-wide assessments of shrimp farming activities in mangrove areas to gain more knowledge on land use dynamics with regard to global change and food security. Earth observation can effectively support the planning and management of aquaculture practices and support stakeholders, politicians, and conservationists in implementing appropriate measures in order to protect coastal environments and foster sustainable development in the coastal zone.</p>

Palynological reconstruction of environmental changes in coastal wetlands of the Florida Everglades since the mid-Holocene

2015 ◽  
Vol 83 (3) ◽  
pp. 449-458 ◽  
Author(s):  
Qiang Yao ◽  
Kam-biu Liu ◽  
William J. Platt ◽  
Victor H. Rivera-Monroy
Keyword(s):  
Coastal Wetlands ◽  
Mangrove Forest ◽  
Environmental Changes ◽  
River Estuary ◽  
Florida Everglades ◽  
Loss On Ignition ◽  
Proxy Record ◽  
Peat Deposits ◽  
Increasing Precipitation ◽  
Mangrove Communities

Palynological, loss-on-ignition, and X-ray fluorescence data from a 5.25 m sediment core from a mangrove forest at the mouth of the Shark River Estuary in the southwestern Everglades National Park, Florida were used to reconstruct changes occurring in coastal wetlands since the mid-Holocene. This multi-proxy record contains the longest paleoecological history to date in the southwestern Everglades. The Shark River Estuary basin was formed ~ 5700 cal yr BP in response to increasing precipitation. Initial wetlands were frequently-burned short-hydroperiod prairies, which transitioned into long-hydroperiod prairies with sloughs in which peat deposits began to accumulate continuously about 5250 cal yr BP. Our data suggest that mangrove communities started to appear after ~ 3800 cal yr BP; declines in the abundance of charcoal suggested gradual replacement of fire-dominated wetlands by mangrove forest over the following 2650 yr. By ~ 1150 cal yr BP, a dense Rhizophora mangle dominated mangrove forest had formed at the mouth of the Shark River. The mangrove-dominated coastal ecosystem here was established at least 2000 yr later than has been previously estimated.

Large-scale shrimp farming in coastal wetlands of Venezuela, South America: Causes and consequences of land-use conflicts

1994 ◽  
Vol 18 (5) ◽  
pp. 647-661 ◽  
Author(s):  
Mirady Sebastiani ◽  
Sara Elena González ◽  
María Mercedes Castillo ◽  
Pablo Alvizu ◽  
María Albertina Oliveira ◽  
...  
Keyword(s):  
Land Use ◽  
South America ◽  
Coastal Wetlands ◽  
Large Scale ◽  
Shrimp Farming ◽  
Land Use Conflicts

scholarly journals Bringing back the Chakaria Sundarbans mangrove forest of South-east Bangladesh through sustainable management approach

2020 ◽  
Vol 4 (2) ◽  
Author(s):  
Shourav Dutta ◽  
MOHAMMED KAMAL HOSSAIN
Keyword(s):  
Sustainable Management ◽  
Mangrove Forest ◽  
Mangrove Ecosystem ◽  
Shrimp Farming ◽  
Management Approach ◽  
Conservation Practices ◽  
Extensive Literature ◽  
Severe Damage ◽  
Forest Diversity ◽  
Sundarbans Mangrove

Abstract. Dutta S, Hossain MK. 2020. Bringing back the Chakaria Sundarbans mangrove forest of South-east Bangladesh through sustainable management approach. Asian J For 4: 65-75. The oldest mangrove forest of Indian sub-continent namely Chakaria Sundarbans (CS) is currently in a critical situation. Destructive anthropogenic and natural impacts coupled with shrimp farming and excessive grazing has caused severe damage to this oldest mangrove ecosystem. A study was carried out based on the extensive literature survey and tried to explore the overall situation and conservation practices for CS of Bangladesh. This paper analyzed, reviewed, and identified the impacts of natural and man-made effects on CS mangroves. Finally, we recommended the sustainable management approach (SMA) including policy and participation of the local people for bringing back this potential natural mangrove forest resource of CS along with rich forest diversity.

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.

Antibiotic contaminants in coastal wetlands from Vietnamese shrimp farming

2011 ◽  
Vol 18 (6) ◽  
pp. 835-841 ◽  
Author(s):  
Hoang Thi Thanh Thuy ◽  
Le Phi Nga ◽  
Tu Thi Cam Loan
Keyword(s):  
Coastal Wetlands ◽  
Shrimp Farming

Spatial optimization modeling on the management of Mangrove forest

2014 ◽  
Author(s):  
Jianjun Li ◽  
Shuai Liu ◽  
Jiang Zhang ◽  
Hao Tan ◽  
Suzhi Liu
Keyword(s):  
Mangrove Forest ◽  
Spatial Optimization ◽  
Optimization Modeling
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