Glossary

Subpopulation- The subset of a larger population

Salmonid- Fish family which includes all salmon as well as trout, chars, whitefish and graylings

Chinook- Also known as the king salmon, the Chinook is the largest pacific salmon species

Nutritional stress- Severe shortage of essential nutrients through starvation

River basin- A large area of land in which many rivers and streams drain into 

Impassable- Impossible to more over or around a barrier

Chemical contaminants- Chemical substances toxic to plants and animals

Biomagnification- The concentration of toxics within an organism due to repeated exposure 

Pollutants- A polluting substance

Pesticides- Synthetic substances cultivated to fight pests off crops

Vessel- A large boat or ship

Sonar- Echolocation used by many animals as a form of communication and awareness

Gestation period- The amount of time a mother carries their baby in the womb

Calf- A juvenile Orca

Post-reproductive female- A female at the age in which they are no longer able to reproduce

Apex predator- Species at the top of the food chain in an ecosystem

Indicator species- An animal that serves as an indicator on the health of an ecosystem

Indigenous- A plant or animal native to a region or specific place

Socioeconomic- Social and economic; socioeconomic means a group's social and economic standing