What are the limitations of eco-certification schemes?

Each spring, landlocked salmon chase spawning rainbow smelt into the tributaries on the New York and Vermont sides of Lake Champlain where anglers intercept ... UKTR spring-run Chinook salmon enter the Klamath Estuary from March through July, with a peak in late May or early June. While the bite tends to slow as the rivers swell and slow down from the spring runoff in May, skilled anglers can catch salmon well into June. Get those hooks ... Key Conservation Issues: Climate Change, Land Use Changes, Invasive Species, Disruption of Disturbance Regimes, Barriers to Animal Movement, Water Quality and ... The SRKW population must catch a minimum of 1,400 salmon daily to sustain their needs; this means that the Southern Resident community needs to capture at least ... The Central Valley drainage of California formerly produced immense numbers of chinook salmon Oncorhynchus tshawytscha. Four seasonal runs occur in this system. The Spring run of salmon that enter the Scottish rivers are the most reliable of all the seasonal salmon runs these days. ... The physical condition and cold ... Mar 30, 2018 ... Spring chinook arrive in their streams while still maturing and developing eggs. Fall chinook are often very close to spawn before arriving in their spawning ... May 21, 2014 ... Declining Chinook salmon populations are down 60% since the Pacific Salmon Commission began tracking salmon data in 1984. In Whatcom County: There are two runs of Chinook salmon in the Nooksack River Basin; a spring run and a fall run. Spring run Chinook enter freshwater as early ...