Rougheye and blackspotted rockfish complex and longspine thorny management plan 2012: appendix 1
Appendix I: Threat Attributes and Assessment Glossary
Terms | Rating | Definitions |
---|---|---|
Threat categorytable notea | n/a | Broad category identifying the type of threat:
|
General threat | n/a | General activity causing the specific threat |
Specific threat | n/a | Specific factor or stimulus causing stress to the population |
Stress | n/a | Indicated by harm to an individual or a population, in response to a threat that results in a reduction of species viabilitytable noteb |
Extent | Widespread | Across the entire species range |
Extent | Localized | Across a specific portion of the species range |
Extent | Unknown | Available information is insufficient to gauge the extent of the threat |
Local | n/a | Threat information relates to a specific site or narrow portion of the species range |
Range-wide | n/a | Threat information relates to the entire or large portion of the species range |
Occurrence | Historical | Contributed to decline but no longer affecting the species |
Occurrence | Current | Affecting the species now |
Occurrence | Imminent | Is expected to affect the species very soon |
Occurrence | Anticipated | May affect the species in the future |
Occurrence | Unknown | Available information is insufficient to gauge the occurrence of the threat |
Frequency | One-time | Occurring only once |
Frequency | Seasonal | Occurs at only certain times of the year (could be due to migratory nature of the species) |
Frequency | Continuous | On-going |
Frequency | Recurrent | Reoccurs from time to time but not on an annual or seasonal basis |
Frequency | Unknown | Available information is insufficient to gauge the frequency of the threat |
Severity | High | Has a very large population-level effect |
Severity | Medium | Has a moderate population-level effect |
Severity | Low | Has a small population-level effect |
Severity | Unknown | Available information is insufficient to gauge the degree to which the threat may affect population viabilitytable noteb |
Causal certainty | High | Evidence causally links the threat to stresses on population viabilitytable noteb |
Causal certainty | Medium | Correlation between the threat and population viabilitytable noteb |
Causal certainty | Low | Assumed or plausible threat only |
Level of concerntable note c | High | High degree of concern for conservation of the species |
Level of concerntable note c | Medium | Moderate degree of concern for conservation of the species |
Level of concerntable note c | Low | Low concern of concern for conservation of the species |
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