Insights from baited video sampling of temperate reef fishes: How biased are angling surveys?

Parker, Daniel M.; Winker, Henning; Bernard, Anne; Heyns-Veale, E.R.; Langlois, Timothy J.; Harvey, Euan S.; Götz, Albrecht

doi:10.1016/j.fishres.2016.02.025

Cited by 23 publications

(21 citation statements)

References 44 publications

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“…; Parker et al. ), and they are typically less strongly influenced by depth, bottom relief, or fish behavior (Cappo et al. ).…”

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confidence: 99%

“…Accordingly, the use of fishery-independent survey data to characterize reef-fish populations has increased dramatically, especially that of data that are obtained through visual sampling. Visual surveys are less selective than those that use traditional capture gear such as traps (Bacheler et al 2013), trawls (Wells et al 2008), and hooks Parker et al 2016), and they are typically less strongly influenced by depth, bottom relief, or fish behavior (Cappo et al 2003). Visual-based sampling methods used to target reef fishes in the southeastern United States include stereo baited remote underwater video (S-BRUV) arrays (Saul et al 2013;Campbell et al 2015; Thompson et al 2017;Keenan et al 2018), towed cameras (Lembke et al 2017), diver visual surveys (Smith et al 2011;Harford et al 2016), and trap-mounted video cameras (Bacheler et al 2013(Bacheler et al , 2014(Bacheler et al , 2016.…”

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confidence: 99%

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Benthic Habitats, as Derived from Classification of Side‐Scan‐Sonar Mapping Data, Are Important Determinants of Reef‐Fish Assemblage Structure in the Eastern Gulf of Mexico

et al. 2020

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Increasingly restrictive management regulations have greatly reduced the utility of fishery‐dependent data for characterizing temporal changes in the abundance of managed fish populations, so fishery‐independent data are becoming more important for the accurate assessment of stock status. A notable downside to fishery‐independent data is the high cost of conducting surveys, and efforts to maximize survey efficiency are critical given ongoing reductions in agency funding. We conducted a pilot study to explore the utility of classifying side‐scan‐sonar mapping data to provide a practical a priori characterization of reef habitat in the eastern Gulf of Mexico. An analysis of side‐scan‐sonar mapping data identified five distinct reef habitat types (low‐relief hard bottom, mixed hard bottom, fragmented hard bottom, ledges, and potholes) that were subsequently sampled with stereo baited remote underwater video (S‐BRUV) arrays and trap‐mounted GoPro cameras. The permutational analysis of variance indicated that the assemblage structure of reef fish differed significantly (P < 0.01) among all of the pairs of habitats except ledges and fragmented hard bottom; assemblage structure did not differ among cameras (P = 0.45). Overall species richness and diversity were significantly higher in the habitats with greater vertical relief, as were the abundances of several economically and ecologically important reef fishes, although many taxa were observed across all of the habitat types. Benthic habitats that are identified from side‐scan‐sonar mapping data are important determinants of reef‐fish assemblage structure and may prove to be useful as a stratification scheme for reef‐fish surveys, although additional research is necessary to explore the transferability of these results to the rest of the eastern Gulf of Mexico.

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“…; Parker et al. ), and they are typically less strongly influenced by depth, bottom relief, or fish behavior (Cappo et al. ).…”

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confidence: 99%

mentioning

confidence: 99%

Benthic Habitats, as Derived from Classification of Side‐Scan‐Sonar Mapping Data, Are Important Determinants of Reef‐Fish Assemblage Structure in the Eastern Gulf of Mexico

et al. 2020

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“…Recent investigations comparing synchronously collected optical data and either hook or trap data routinely showed that the optical surveys collected higher diversity, had improved detection (i.e., decreased false negatives), and tracked population abundance more precisely (Harvey et al. ; Parker et al. 2016a, 2016b; Streich et al.…”

Section: Discussionmentioning

confidence: 99%

Status and Trends of Marbled Grouper in the North‐Central Gulf of Mexico

et al. 2019

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Marbled Grouper Dermatolepis inermis were categorized as “near threatened” by the International Union for Conservation of Nature in 1996, and the status of the species was set for review in 2018. Analysis used to support its global threatened status included basic parameters, such as numbers seen in a year and spatial maps of positive observations, but included no statistical approaches to interpret abundance trends. In an effort to improve the understanding of Marbled Grouper status and trends, we used the Southeast Area Monitoring and Assessment Program reef fish video survey time series in the northern Gulf of Mexico, USA, to estimate relative abundance, proportion of positive stations, and the impact of habitat variables on fish abundance. Marbled Grouper were consistently observed in low numbers on the Louisiana shelf‐edge banks throughout the survey. Generalized linear mixed models using a negative binomial data distribution showed significant effects for the presence of reef and depth, while the percent coverage of rock was marginally significant. These results indicate that detection and abundance of Marbled Grouper are strongly associated with high rugosity and deep (60–100 m) reef tracts. Interpretation of annual trends was difficult due to high interannual variability, but the data appear to show no detectable trends. Given that the previous classification of near threatened was based primarily on the consistent but rare observation of the species in its preferred habitat on a global basis, and given that the annual indices produced for the northern Gulf of Mexico region were highly variable, we recommend that the current International Union for Conservation of Nature regional status be maintained. This study highlights the utility of optical surveys for collecting data on species that are rare or that are not observed using traditional fisheries sampling gears and also indicates the importance of synchronous collection of habitat information.

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“…; Parker et al . 2016b), represents high population growth or decline scenarios that may signal changes in environmental conditions or fishing intensity. In both cases, it was assumed that the trends would be sustained over 5 years, a time period feasible for management regimes for marine species.…”

Section: Methodsmentioning

confidence: 99%

“…The OMP target is meant to be an estimate of population growth that allows for moderately high fishing intensity (Johnston & Butterworth 2005). Jasus lalandii is a slowgrowing crustacean with recent declines in growth rates and 10%, the mean rate used in similar power analyses of teleost species (De Vos et al 2014;Parker et al 2016b), represents high population growth or decline scenarios that may signal changes in environmental conditions or fishing intensity. In both cases, it was assumed that the trends would be sustained over 5 years, a time period feasible for management regimes for marine species.…”

Section: Power Analysismentioning

confidence: 99%

Potential application of baited remote underwater video to survey abundance of west coast rock lobster Jasus lalandii

Roberson

Attwood

Winker

et al. 2017

Fisheries Management Eco

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The first assessment of the baited remote underwater video system (BRUVs) for monitoring rock lobster Jasus lalandii (Milne‐Edwards) in South Africa was compared to annual ring net and trap survey data. Count data from 58 BRUVs, 36 ring net and 95 trap samples were fitted with generalised additive models using depth, habitat, time and spatial gradient as independent variables. A power analysis was used to determine the number of samples needed per annum to detect a 5 and 10% increase and decrease in population size. The BRUVs outperformed the nets and traps in terms of sampling effort and were better at detecting changes in abundance of lobster than abundance of three fish species. Considering factors such as cost, analysis time, additional data and environmental impact, traps are the most feasible method in deeper waters but BRUVs could replace nets and traps in depths less than 60 m, low‐density areas and marine reserves.

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Insights from baited video sampling of temperate reef fishes: How biased are angling surveys?

Cited by 23 publications

References 44 publications

Benthic Habitats, as Derived from Classification of Side‐Scan‐Sonar Mapping Data, Are Important Determinants of Reef‐Fish Assemblage Structure in the Eastern Gulf of Mexico

Benthic Habitats, as Derived from Classification of Side‐Scan‐Sonar Mapping Data, Are Important Determinants of Reef‐Fish Assemblage Structure in the Eastern Gulf of Mexico

Status and Trends of Marbled Grouper in the North‐Central Gulf of Mexico

Potential application of baited remote underwater video to survey abundance of west coast rock lobster Jasus lalandii

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