Tag Archives: Gulf of Mexico Dead zone

Price spikes for jumbo shrimp blamed on Gulf of Mexico dead zone

Every spring and summer when the low-oxygen dead zone forms off Louisiana’s coastline, the price of jumbo shrimp briefly spikes, affecting Gulf of Mexico fishers, consumers and seafood markets, according to a new study published Monday (Jan. 30) in the Proceedings of the National Academy of Sciences. And the price for smaller shrimp generally falls. The positive effect of the price increase on jumbo shrimp for Gulf commercial shrimpers are fleeting, however. That’s because the rise often triggers increased imports of large shrimp from foreign producers, including farm-raised shrimp, which quickly drive down prices. The dead zone is an area of low oxygen — with levels of oxygen at or below 2 parts per million — that scientists define as hypoxia. Freshwater rich in nitrogen and phosphorus from Midwest farms and from nutrient-rich sewage from cities and rural areas enters the Gulf each spring and summer, forming a freshwater layer over the Gulf’s saltier sea water. Read the full story here 18:41

Our Views: Gulf of Mexico Dead zone needs attention

Louisiana — and the nation that depends upon its fisheries — can’t afford anything less. [email protected] theadvocate