Farmers Mobilization in Response to Climate Changes

Get Rich by Being Friendly to the Environment
Sustainable Development of Fishery Resources
Conserving Forests to Absorb Carbon Emissions
Strive for Safety Food Production and Maintain Food Security for Domestic Requirement
How Much Does Global Warming Affect Agriculture?
Farmers Mobilization in Response to Climate Changes

Sustainable Development of Fishery Resources

Date:2010-09-07

Climate warming will make aquaculture affectedTaiwan is surrounded by seas which have various different ecosystems including coral reef, seaweed bed, hot spring, cold spring, shoal, deep sea and ocean, providing habitat and breeding ground for various marine organisms as well as important sea resources and functions of carbon absorbing and storing, and leisure and recreation. But such interferences as overfishing, habitat destruction, pollution and invasion by human beings have gradually decreased fish resources. Under the impact of climate changes and global warming, sea levels have risen and ocean currents changed, thus altering implantation of marine organism larvae and their spreading, or migration of adult marine lives and fishery locations. It is observed that in the past two decades fishes spawned in areas further to the south and wintering species moved to the north, while fishes brought by such warm waters as main and side currents of the Kuroshio and South China Sea currents have become relatively stronger. As water temperatures tend to rise continuously, the growth and decline of currents surrounding Taiwan will become more obvious, possibly further decreasing future fish catches within the Exclusive Economic Zone.

When discussing adjustment strategies for Taiwan’s agricultural industries in the Policy Conference on Adjusting Agriculture in Response to Climate Changes, it was mentioned that climate changes have altered water salinity and temperatures, thus affecting freshwater, saltwater and brackish water aquaculture. For example, the completely natural production process adopted by net cage aquaculture might be affected by changed water temperatures; oyster, clam and abalone are main species being farmed in coastal waters and they feed on planktons. When the natural environment changes, the basis of their productivity can also be changed easily, increasing the morbidity and mortality rates of farmed marine organisms. Besides, rising sea levels and changed rainfall patterns caused by global warming will put freshwater aquaculture in a plight of water resource shortage. In addition to changes of fish species appearing in coastal waters, offshore fish species will face the crisis of drastically reduced resources due to global warming and thus incur fishing restrictions on species and amount. All these changes will directly affect the livelihood of fishermen and decrease the supply of fishery products, thus leading to the problem of food shortage.

Then how should the fishery industry adjust itself in response to the impact of climate changes?

The adjustment strategies being planned and implemented by the government include revised catch objects, fishing gears and methods and a fishing moratorium aimed at lowering catches, hoping to conserve marine resources while sustaining the local fishery industry. The government also continues buying fishing vessels to reduce the fishery scale and alleviate overfishing pressures in coastal waters. The fishery agencies will strengthen the assessment of how to utilize and catch new species migrated into the fishing grounds under the influence of global warming. In order to reduce demand for and destruction of wild fish species and replenish the resources of economic species, the government will also release an appropriate amount of tiny fry into rivers or seas. Besides, the government will actively take part in international fishery organizations to safeguard the rights and interests of Taiwan’s fishery industry.

And aquaculture in Taiwan will strive for energy conservation and carbon emission reduction, hoping to establish a sustainable aquaculture chain by developing facility aquaculture and mariculture. The government policy is to plan special zones for mariculture and freshwater aquaculture and integrate the utilization of water resources to build a quality production environment. Therefore, the aquaculture industry should strive to develop healthy aquatic products and use such green energy as solar power, and strengthen the export competitiveness of Taiwan’s aquatic products by adopting the system of carbon footprint aquaculture certification. Then the aquaculture industry should apply curreafly available advauced biotechnology to enhance the immunity of farmed marine organisms and utilize breeding technology to achieve the goal of farming healthy and safe aquatic products.

As to the problems facing the aquaculture industry, the Policy Conference on Adjusting Agriculture proposed the establishment of special zones for net cage aquaculture and marine fish farms, integrated utilization of water resources, and the creation of a quality production environment. For the aquaculture industry, they profged the govermieat to assist the mauvfactone facsories apply for CAS (Certified Agricultural Standards) premium taiaran’s agricultural product labels. The experts also recommended the promotion of aquaculture production zones as well as production and marketing groups and encouraged large fishery product distributors to sign contracts with producers for better division of work, so as to well prepare in advance to deal with the impact of climate changes.

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