Individual Based Modelling of Fish Migration in a 2-D River System: Model Description and Case Study.

ABSTRACT:

Context

Diadromous fish populations in the Pacific Northwest face challenges along their migratory routes from declining habitat quality, harvest, and barriers to longitudinal connectivity. These stressors complicate the prioritization of proposed management actions intended to improve conditions for migratory fishes including anadromous salmon and trout.

Objectives

We describe a multi-scale hybrid mechanistic-probabilistic simulation model linking migration corridor conditions to fish fitness outcomes. We demonstrate the model's utility using a case study of salmon and steelhead adults in the Columbia River migration corridor exposed to spatially- and temporally-varying stressors.

Methods

The migration corridor simulation model is based on a behavioral decision tree

SUBMITTER: Snyder MN 

PROVIDER: S-EPMC7788051 | biostudies-literature | 2019 Apr

REPOSITORIES: biostudies-literature