Assessing Habitat Use by Snapper (Chrysophrys auratus) from Baited Underwater Video Data in a Coastal Marine Park

PloS One
Maria A TerresRussell C Babcock

Abstract

Baited Underwater Video (BUV) systems have become increasingly popular for assessing marine biodiversity. These systems provide video footage from which biologists can identify the individual fish species present. Here we explore the relevance of spatial dependence and marine park boundaries while estimating the distribution and habitat associations of the commercially and recreationally important snapper species Chrysophrys auratus in Moreton Bay Marine Park during a period when new Marine National Parks zoned as no-take or "green" areas (i.e., areas with no legal fishing) were introduced. BUV studies typically enforce a minimum distance among BUV sites, and then assume that observations from different sites are independent conditional on the measured covariates. In this study, we additionally incorporated the spatial dependence among BUV sites into the modelling framework. This modelling approach allowed us to test whether or not the incorporation of highly correlated environmental covariates or the geographic placement of BUV sites produced spatial dependence, which if unaccounted for could lead to model bias. We fitted Bayesian logistic models with and without spatial random effects to determine if the Marine National Park ...Continue Reading

References

Sep 10, 2004·The Journal of Neuroscience : the Official Journal of the Society for Neuroscience·Santanu BanerjeeGaiti Hasan
Jun 27, 2008·Current Biology : CB·Garry R RussDavid H Williamson
Feb 24, 2010·Proceedings of the National Academy of Sciences of the United States of America·Laurence J McCookDavid H Williamson

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