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A summary table of the ecological indicators listed on SOKI.

Indicator	Attribute	Purpose	If restricted to taxa, list which ones	Ecosystem applicability	Identified capability	Biological classification level	Response variable	Drivers	Robustness
Abundance	Community structure, Trophic structure, Habitat structure and condition	All species		Should be applicable for al ecosystems	Aspirational	Community, Ecosystem	Species-based	Anthropogenic	Medium to high
Abundance biomass curve	Community structure	Polluted populations, Fisheries	Benthic communities	So far benthic communities in temperate, semi-enclosed coastal system	Demonstrable	Community	Species-based, Trophodynamics	Trophodynamics	Potentially high
Biomass of species of interest	Community structure; Trophic structure, Population structure; Predator-prey balance	Fisheries		Should be suitable for all ecosystems	Demonstrable	Ecosystem; Community; Population	Size-baaed, Trophodynamic, Environmental	Trophodynamic	Potentially high
Bioconstruction index	Community composition, Habitat structure and condition	Fisheries		Developed for coral reefs	Aspirational	Community	Trophodynamic, Species-based	Anthropogenic, Environmental	Low
Bottom roughness - Acoustic signal strength	Habitat structure and condition	Fisheries, Benthic habitats	Benthic	Applicable to all ecosystems	Demonstrable	Community	Environmental	Anthropogenic, Environmental	Medium to high
CCAMLR predator-prey-environmental index	Community structure and function, Trophic structure, Habitat structure and condition	CEMP		Potentially applicable for any marine ecosystem	Aspirational	Community. Ecosystem	Environment, Trophodynamic, Species-based	Trophodynamic	Potentially high
Chlorophyll a	Tropic structure, Community structure, Eutrophication	Phytoplankton; Fisheries		Should be applicable to all ecosystems	Demonstrable	Ecosystem, Community	Species-based, Trophodynamic	Anthropogenic	Medium
Composite multi-metric index (eg Index of biotic integrity (IBI), Estuarine Biotic Integrity index (EBI)	Community structure and function, Ecosystem structure and function			Potentially applicable to any marine system	Aspirational	Community, Ecosystem	Species-based, Trophodynamic, Environmental	Environmental	Potentially high
Discard rate	Discard availability or depletion, Community structure, Trophic structure, Population structure	Fisheries		Should be applicable to all ecosystems	Demonstrable	Population, Community, Ecosystem	Species-based, Trophodynamic	Anthropogenic	Low to medium
Diversity and taxonomic relatedness of species	Community structure; heterogeneity	Fisheries		Should be suitable for all ecosystems	Aspirational	Ecosystem; Community	Species-based	Trophodynamic, Anthropogenic	Low to medium
Dominance of detritus	Ecosystem structure and function, Community structure, Eutrophication	Fisheries		Should be applicable in all ecosystems	Aspirational	Ecosystem	Environmental, Trophodynamic	Anthropogenic	Medium to low
Fishery is balanced (FIB Index)	Trophic shifts	Fisheries		Should be applicable to all ecosystems	Aspirational	Ecosystem, Community	Trophodynamic	Anthropogenic, Trophodynamic	Medium
K dominance curves	Community structure	Fisheries		Should be applicable to all ecosystem types	Aspirational	Ecosystem	Species-based	Anthropogenic	Potentially high
Leverage points	Habitat structure and condition, Community structure and function, Trophic structure, Ecosystem structure and function	Fisheries		Should be applicable in any system	Aspirational	Community, Ecosystem	Environmental	Anthropogenic, Environmental	High
Mean trophic level	Trophic shifts, Trophic structure	Fisheries		Applicable to all systems	Aspirational	Ecosystem	Trophodynamic	Anthropogenic	Medium to high
Mortality and potential jeopardy	Community structure, Population structure	Fisheries		Potentially applicable to all ecosystems	Demonstrable, Aspirational (depends on the method)	Community, Population	Species-based; Size-based	Anthropogenic	Medium to potentially high
Multiple matrix (cover, diameter, density, vertical relief)	Habitat structure and condition	Fisheries		Applicable to all ecosystems	Aspirational	Community	Environmental, Trophodynamic	Anthropogenic	High
Ordination methods	Community structure; heterogeneity	Fisheries		Should be applicable to all ecosystems	Aspirational	Ecosystem; community	Species-based	Anthropogenic, Environmental	Low to medium
Primary production required	Ecosystem structure and function, Community structure, Trophic structure	Fisheries		Should be applicable to all ecosystems		Ecosystem	Trophodynamics	Anthropogenic	High
Production/Biomass	Ecosystem structure and function	Fisheries		Should be applicable to all ecosystems	Demonstrable	Ecosystem	Trophodynamic, Environmental	Trophodynamic	Medium
Rates of anatomical damage	Habitat structure and condition	Fisheries	Benthic communities	Benthic northern hemisphere boreal, temperate shelf and slope systems.	Demonstrable	Community	Trophodynamics, Environmental	Anthropogenic	Low to high
Rate of catch of species at risk, Potential Biological Removal (PBR) rates	Efficacy of bycatch reduction mitigation measures, Discard availability or depletion, Community structure, Trophic structure, Population structure	Fisheries, Marine mammals, Seabirds, Marine turtles, Sea snakes		Should be applicable to all marine ecosystems	Aspirational	Population, Community, Ecosystem	Species-based	Trophodynamic, Anthropogenic	Low
Ratios of trophic or habitat group - eg, biomass ratios of infauna/epifauna or pelagic/demersal or piscivore/planktivore	Trophic structure	Fisheries		Mostly temperate shelf to coastal inshore	Demonstrable	Ecosystem	Species-based, Trophodynamics	Anthropogenic, Trophodynamics	Potentially medium to high
Redfield ratio	Trophic structure, Eutrophication			Should be applicable in all ecosystems	Demonstrable	Ecosystem	Environmental	Environmental, Anthropogenic	Low to medium
Relative ascendency	Ecosystem structure and function	Fisheries		Should be applicable in all ecosystems	Aspirational	Ecosystem	Environmental, Trophodynamic	Anthropogenic	Medium to high
Reproductive performance (eg. fledging rates, number of breeding pairs, number of chicks per nest, provisioning rates)	Prey and discard availability or depletion	Seabirds, Fisheries		Applicable to all ecosystem with large predators	Demonstrable	Population, Ecosystem	Species-based; Trophodynamic	Trophodynamic, Anthropogenic	Potentially medium to high
Residence time	Ecosystem structure and function	Fisheries		Should be applicable in all ecosystems	Aspirational	Ecosystem	Environmental	Environmental	Medium to low
Size or age structure	Population structure, Trophic structure	Fisheries		Should be appropriate to all habitats and ecosystems	Demonstrable	Population, Ecosystem	Size-based	Anthropogenic	Medium to high
Size-spectra slopes and intercepts	Community structure, Tropic shifts, Predator-prey balance	Fisheries		Should be applicable to all systems	Demonstrable	Community, Ecosystem	Size-based; Trophodynamics	Anthropogenic, Trophodynamics	High potential
System Omnivory Index	Ecosystem structure and function, Community structure, Trophic structure	Fisheries		Should be applicable in all ecosystems	Demonstrable	Ecosystem	Trophodynamic	Anthropogenic, Trophodynamic	Medium to high
Temporal variability of total biomass	Tropic shifts; Community structure	Fisheries		Should be applicable to all ecosystems	Demonstrable	Community; Ecosystem	Species-based; Trophodynamics	Trophodynamics	Potentially medium to high
Throughput	Ecosystem structure and function	Ecosystem size		Should be applicable in all ecosystems	Demonstrable	Ecosystem	Species-based, Environmental	Environmental	Medium to low
Trait composition	Tropic shifts, Community structure, Population structure	Fisheries		Should be applicable in all ecosystems	Aspirational	Ecosystem, Community, Population	Species-based, Size-based	Anthropogenic	Medium

Below are other indicators that have found in the literature, although should note that some are repeats from the above list
catch ratios
plankton indicators derived from the CPR
traditional measures of species diversity
ratio of endangered to non-endangered species
ENSO and SIO
Exploitation rate
Fishing in balance
genetic diversity
Fulton's condition index
Proportion of the large species is assemblage
average length of fish
mean length-at-age
mean body size of community
mean body size of population
mean length at maturity of fish assemblage
mean maximum length of population
NAO
PDO
Primary production required to support catches
Productivity and consumption ratios
species distribution/relative abundance
stock density indices
slope and intercept of size diversity spectra
size distribution of species
slope and height of the fish assemblage size spectrum
ratio of target to non-target species
system mean transfer efficiency

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