Poms affected oyster growers increase spat buy back costs
by William D. Hartwell in Washington, D.C., October 11, 2014
New findings out today in the journal Science show that the impact of oyster growers’ aggressive planting in the coastal states of Pennsylvania and New York on shellfish producers is so large that it raises the possibility that the effects of such actions on the environment are also deleterious.
The researchers looked at the impact of growing an average of 400,000 oysters from 2006 to 2013 on both shellfish and oyster production in coastal regions of both the P보성출장마사지ennsylvania and New York territories. The study assessed effects on shellfish and oyster yields due to both biological and social factors, such as stressors such as high sea surface temperatures, competition for fish from coastal areas, and damage to a critical ecosystem service such as water quality and the distribution of nutrients and detritus of the coastal oyster patch.
In the study, oysters grew twice as fast in the c카지노entral Pennsylvania area as in the southern New York region, which produced 7.4 per cent fewer shellfish in 2012 compared with 2010, when New York oysters are harvested. Shellfish yields had risen by just 0.7 per cent in 2012 compared with the year before, 에스엠 카지노the researchers found. The study’s finding that shellfish grow twice as fast in New York versus Pennsylvania shows that this area is increasingly attracting more foreign fish than the region needs, explains William D. Hartwell, a researcher with the U.S. National Oceanic and Atmospheric Administration’s Division of Oceanic and Atmospheric Research.
“The growing population in the central Pennsylvania area of New York is of particular concern, because that area is growing quite rapidly and has a pretty healthy shellfish economy,” he explains.
He says it is hard to predict when and how these developments will affect shellfish production in the region because “there is a lot of uncertainty about where the oysters grow.”
The impact may be especially severe in the state where more than 70 per cent of New York oyster producers grow oyster farms. That means they have a strong incentive to grow in coastal waters, the researchers say.
But that does not mean the state’s oyster growers are ignoring environmental risks. While the area where they grow is generally protected, some oysters are released into coastal waters when they are immature, they point out. That can lead to serious environmental and economic consequences, such as changes in the flow of oyster fertilizers, and they can create a significant impac