New England’s shrimp-fishing season gets under way this week. The start of the season begins Wednesday, but isn’t expected to last long with a quota of only 1.4 million pounds. That’s about one-fourth last year’s catch of 5.3 million pounds. Net fishermen have a quota of about 1.2 million pounds and can fish only two days a week. Trap fishermen have a quota of about 200,000 pounds. Their season begins Feb. 5. Regulators last month set a short season with a low quota after scientists warned that the Gulf of Maine shrimp population is in poor shape due to environmental conditions. Shrimp fishing provides a small but important winter fishery. Maine fishermen catch about 90 percent of the harvest, with New Hampshire and Massachusetts fishermen accounting for the rest.