This is a link to the original article. I copied and pasted part of this below, but reading the whole thing gives you a better idea about the issues and status.
http://tinyurl.com/2ddl973
Cape lobster industry faces crisis
By Doug Fraser
dfraser@capecodonline.com
June 13, 2010
Second long section of whole article
....Looking for answers
Despite drastic new regulations that ended overfishing, there has been no evidence of a turnaround in Southern New England lobster stocks. In fact, indicators of abundance, like the numbers of juvenile lobsters that become legal-sized each year, have been worsening. Last year, the Atlantic States commission's tech committee, a confab of lobster scientists, began looking for answers.
What surprised them, said Glenn, was the complete lack of lobsters in many inshore areas where they used to be caught. That included little to no evidence of egg-bearing females or the tiny lobsters that settle on the bottom after they mature from free-floating larvae.
The marine fisheries' own lobster surveys showed that, in Buzzards Bay, for instance, many lobsters were found in locations all over the bay by research cruises in 1999. Over the next decade, researchers caught few, if any lobsters in the bay. In a trend mirrored up and down the southern New England coastline, lobsters were found congregating in the deeper, cooler waters of Vineyard Sound.
It appeared that the whole population had moved west to get away from what had become an intolerable heat in the bay.
That was understandable because a lobster's whole life, from reproduction and growth to health and mortality, is influenced by temperature. They grow faster and become sexually mature sooner in warmer water. Still, they prefer temperatures between 53 and 64 degrees, can detect a change of less than 2 degrees and will avoid areas with constant temperatures over 66 degrees.
Glenn said the expansion in the number of days with high water temperatures is probably a bigger factor than the temperature rise itself. While lobsters can tolerate the occasional warm day, prolonged exposure to water over 68 degrees wreaks havoc on their respiratory and immune systems and leads to outbreaks of shell disease and other lobster diseases.
Long-term recorded water temperatures from Long Island to Cape Cod show a steady upward trend over the past 20 years in not only water temperature, but in the number of days over 68 degrees. In temperature studies from New York to Buzzards Bay, the pattern is strikingly similar. At the Millstone Power Station in Waterford, Conn., recorded water temperatures since 1976 showed that the number of days over the 68 degree mark dramatically increased after 1999. There were just five days over 68 degrees in 1998. In 1999 that rose to 55, then 75 the next year. Over the decade most years registered between 65 and 75 days over 68 degrees. A similar trend was noted in Buzzards Bay. At the same time, Glenn noticed, commercial landings started a long steep slide that continues even today.
"When you map it out, in 1999 there were strong temperature anomalies, and at the same time commercial landings and all the different trawl survey indices of abundance decrease, then that is a remarkable coincidence," said Glenn.
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