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Recovery Strategy for the Northern and Southern Resident Killer Whale

Appendix A - Glossary

Abiotic:
Non-living factors in the environment (e.g. water, air, rocks)
Allee effect:
The reduced likelihood of finding a mate when population numbers are low
Anthropogenic:
Caused or produced by humans
Bioaccumulation:
The process by which (toxic) substances from prey and the environment crease over time in concentration in living organisms.
Biotic:
Living components of the environment (e.g. fish, plankton)
Biotoxin
Toxin produced by a living organism
Culture:
A body of information and behavioural traits that are transmitted within and between generations by social learning
dB (decibel):
A unit for measuring the relative intensity of a sound.  In this document the sources of sounds are consistently referenced to 1 µPa at 1 m.  The sounds that marine mammals hear (received level) depend on their distance from the source of the sound. 
Depensation:
When a decline in population numbers leads to reduced survival (due to increased mortality) or reduced reproduction (due to the Allee effect)
Ecotype:
A population that is genetically different from other populations of the same species
Lipophilic  
A substance that dissolves more easily in lipids (fats) than water. Chemicals that are lipophilic tend to bioaccumulate.
Matriline:
Comprises all surviving members of a female lineage.  A typical matriline comprises an adult female, her offspring, and the offspring of her daughters.
Mediastinal:
Part of the thoracic cavity between the lungs that contains the heart, aorta, esophagus, trachea and thymus
Odontocete:
Toothed whales, dolphins and porpoises
Systemic mycoses:
Fungal infection that affects the whole body
µPa (micro Pascal):
A unit of acoustic pressure
Sympatric:
Closely related populations or ecotypes that overlap in their range but do not interbreed

Contaminant Acronyms :

APEs:
Alkylphenol ethoxylates
DBT:
Dibutyltin
DDT:
Dichlorodiphenyl trichloroethane
PAHs:
Persistent aromatic hydrocarbons
PBDEs:
Polybrominated diphenylethers
PBDTs:
Polybrominated trienylethers
PCBs:
Polychlorinated biphenyls
PCDDs:
Dioxins, polychlorinated dibenzo-p-dioxins
PCDFs F, pfurans:
Polychlorinated dibenzofurans
PCNs:
Polychlorinated napthalenes
PCPs:
Polychlorinated paraffins
PCTs:
Polychlorinated terphenyls
SPFOs:
Perfluoro-octane sulfonates
POPs:
Persistent organic pollutants
TBT:
Tributyltin