Baited camera to identify macro-fauna species and their abundance in close proximity to seaweed farms : technical report

Abstract

Wageningen Marine Research provides no printed copies of reports Wageningen Marine Research is ISO 9001:2015 certified. Wageningen Marine Research report C111/20 | 3 of Contents Summary 1 Introduction 2 Objective 3 Materials and Methods 4 Results preliminary test on baited camera settings 4.1 Test site 4.2 Preliminary test results 4.3 Video monitoring at seaweed site 4.3.1 Study site 4.3.2 Experimental design 4.3.3 Analysis of video footage 5 Results 5.1 Early afternoon 5.2 Early evening 5.3 Early afternoon vs. early evening 5.4

Development of a framework and toolbox for measuring and evaluating ecosystem interactions of seaweed aquaculture

“…The use of video-techniques has therefore become a powerful tool for monitoring marine biodiversity on different scales, from individuals to entire ecosystems and have been reviewed in Tonk et al (2018). Baited remote underwater video (BRUV) systems and video transects were tested to identify macro-fauna species and their abundance in close proximity to seaweed farms and showed potential for the current baited camera design (Figure 17) (Lubsch et al, 2021, Tonk et al, 2018. To identify potential biases the system needs to be compared with other methods (transects) and validated.…”

“…For future research, innovative solutions for data processing are essential to ensure the continuing practical use of camera systems. To provide a wider range of identification options, automated visual recognition based on deep learning techniques should also be considered for future development (Lubsch et al, 2021).…”