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Table 1 Operational definitions and clarification of terms

From: Exploring the relationship between static fishing gear, fishing effort, and benthic biodiversity: a systematic review protocol

Variable Definition Metric(s)
Abundance The number or proportion of the same species within an area Counts obtained through transect or quadrant sampling
Community composition The relative abundances of taxa within an area Biotope classification (e.g. OSPAR)
Condition Physical state of fauna within an area Identification of damage, disease, injury, discoloration, etc
Diversity The richness and abundance of an area Diversity indices (e.g. Shannon–Weiner Index or Simpson’s Index)
Mortality Measure of individual deaths Mortality rate (may instead be measured by proxies such as community composition, abundance, or condition)
Recovery rate Physical and biological recovery of site to a pre-determined state Diversity of area, abundance of area, physical condition of area
Richness The number of different species within an area Counts obtained through transect or quadrant sampling