Modelling Inshore Rockfish Habitat in British Columbia: A Pilot Study
نویسندگان
چکیده
In the absence of reliable survey data, habitat modelling can direct conservation and fishery management efforts. We have constructed a model designed to predict high-value inshore rockfish habitat, based on the variables of topographical complexity and kelp density. When applied in our pilot study area, this model showed remarkable accuracy at predicting areas previously identified by commercial fishers. Ninety-four percent of high-value fishing areas were captured by our habitat model, and 79% contained our upper three scores, which we believe to be indicative of “core” habitat areas. These upper three classes account for 28% of the study area. When used to assess some recently designated rockfish conservation areas, our model and fishers’ knowledge both indicate that three out of the seven conservation areas in our study area may actually represent poor choices for rockfish conservation and restoration.
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