The Stochastic Life-Cycle Model (Slcm)

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Excerpt from The Stochastic Life-Cycle Model (Slcm): Simulating the Population Dynamics of Anadromous SalmonidsAt best, deterministic surplus-production models capture only the cen tral tendencies of a population. When combined with models that link management actions to model parameters, deterministic models can pro vide a normative ranking of alternative strategies if three conditions hold. First, the model must be valid for the population in question, that is, the model should faithfully mimic the population's underlying dynamics. Sec ond, the population must be relatively robust so annual deviations from the expected behavior do not have long-term repercussions. And third, model parameters must be estimated accurately.In a sense, we can never be certain that these conditions hold true. We can be more confident with populous stocks where sufficient data provide a convincing argument for the model's use. Unfortunately, this is not the case for many stocks of concern, such as those Within the Columbia River Basin and other coastal streams of the Pacific Northwest.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully, any imperfections that remain are intentionally left to preserve the state of such historical works.