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Legal Planet blog: Delta NRC committee issues initial report

Posted by: Maven on March 19, 2010 at 2:19 pm

From the Legal Planet blog:

“The National Research Council’s Committee on Sustainable Water and Environmental Management in the California Bay-Delta released its first report this morning (also available through the National Academies Press web site, with registration). On a quick review of the summary, the conclusions are unsurprising — the Committee finds that the provisions of the Biological Opinions for protecting Delta smelt and winter-run chinook salmon are scientifically justified and conceptually sound, but that there is a great deal of uncertainty about the precise triggers for pumping restrictions. Seems to me we already knew exactly that, but there’s no harm in having yet another authoritative voice say so.

The report makes several useful contributions to the ongoing management debate.

First:

The committee concludes that reversing or even slowing the declines of the listed species cannot be accomplished immediately. Even the best-targeted methods of reversing the fish declines will need time to take effect amid changing environmental conditions such as multi-year droughts and continued pressures on the system from other human-caused stresses. Especially for fishes whose populations are very low already, the effects of any actions will be difficult to detect at first, and detecting them will be made more difficult by the effects of other environmental changes and uncertainties inherent in sampling small populations.

Again, this was already well known among those working on the Delta ecosystem, but the big water users seem to have managed to obscure it in the public discussion with their loud and repeated complaints that it has not been proven that export restrictions are helping the fish. Inevitably, when a population has been allowed to dwindle to the extent these fish species have, recovery cannot be immediate, and even detecting positive effects will be difficult and may take considerable time. It is unreasonable to demand, and the ESA wisely does not require, that benefits be immediate or obvious. … “

Find out what else the Legal Planet blog thinks about the NAS report by clicking here.

March 19, 2010 · Filed Under Delta Issues

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