A pearl necklace is the result of combining a fragile, environmental indicator species like the pearl oyster with a multibillion
dollar international jewelry industry. When
an indicator species is the subject of a multibillion dollar industry, there
are economic reasons to monitor water quality and ensure return on
investment. Since pearl oysters only
produce gem quality pearls in the cleanest water, a pearl oyster farmer is
motivated to maintain a pollution-free coastal habitat and to
respond rapidly to environmental threats.
By implementing industry standards for the operation of pearl oyster
farms worldwide, there is an opportunity to increase the positive externalities
of pearl production: cleaner water,
healthier coastal habitats, and improved working conditions for indigenous
people.
Since pearl oysters are filter feeders, they
remove pollutants and heavy metals from the water, thereby, improving water
quality. But, when the pollution is
greater than these filter feeders can handle, the pearl oyster mortality rate
rises and the quality of pearls falls. A
pearl oyster farmer is financially motivated to respond to high levels of
pollution. The pearl producer must be
able to work domestically to improve national waters and with
neighboring countries to protect shared water basins. In particular, the United Nations Food and
Agriculture Organization [FAO] has developed national strategies assisting aquaculturalists in sharing industry
knowledge and advancements with neighboring countries, and building cooperation in maintaining a healthy
marine environment. The FAO also calls
upon individual nations to promote regulations and laws that will protect
aquaculturalists, such as control standards for industrial or agricultural run-off water pollution, seepage from garbage dumps, and city sewage treatment. These national strategies for sharing and
cooperation are a way of encouraging nations to maintain a healthy coastlines and communication with neighboring countries regarding shared
bodies of water.
Today, pearl oyster farms are located
throughout Australasia, the Middle East, and South America. Many of these locations are remote and
include environmentally threatened coastal areas inhabited by indigenous people
with long-standing claims to the coastal resources. The Nature Conservancy [TNC] has developed
Marine Conservation Agreements [MCA] to negotiate mutually favorable contracts
between large companies and small communities.
These agreements combine economic incentives with conservation
commitments, and, use anthropological studies to assist in protecting the
interests of the local people. These MCAs are exemplified by the agreement between Atlas South Sea Pearl Company and the Kawe people.
When a farm includes one of these MCAs in their business plan, the pearls cultured can be deemed 'green.' In this context an aquaculturist make use of national strategies to strengthen national and international efforts to maintain a pristine coastal habitat. Because the
pearl oyster is an environmental sentinel, the waters of the coastal area will be
monitored by farmers invested in the health of the local environment and
prepared to fight for the long-term health of that investment.
Written for SIEL by:
Heather Murray, 3L
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