Term
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Definition
| aquatic organisms = extractive resource to sell and consume |
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Term
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Definition
| unwanted capture (dead or injured) that is discarded at sea. mostly crustaceans & detritus |
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Term
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Definition
| catch + bycatch + released alive |
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Term
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Definition
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Term
| Longline fishing & bycatch |
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Definition
intended catch: sword fish, tuna, pacific cod
Bycatch: birds, sharks, turtles |
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Term
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Definition
gill nets (25-50km long)
More selective but end up with ghost nets |
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Term
| Bottom trawling & bycatch |
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Definition
pulling a net across the bottom of the ocean (cod, halibut, rock fish)
Bycatch: corals, turtles, any small fish or creatures on the ocean floor) |
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Term
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Definition
| fishing for sport or leisure w/possible secondary objective of catching for food |
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Term
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Definition
-direct harvest
-discards and bycatch
-abandoned gear
-habitat disturbance |
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Term
| minimizing impact in catch and release |
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Definition
| minimize air exposure, handle gently, use barbless hooks |
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Term
| glucose level over time of air exposure = ? |
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Definition
| linear upward trend with glucose correlating with time |
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Term
| Lactate level over time of air exposure = ? |
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Definition
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Term
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Definition
| collaps and adhesion of gill filaments |
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Term
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Definition
| -resistant to env. degradation, low water solubility, high lipid solubility |
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Term
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Definition
| increase in conc. of contaminant within a trophic level (1st) |
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Term
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Definition
| increase in conc. of contaminants across trophic levels (up the food chain) (2nd) |
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Term
Mercury
- comes from?
- dangerous because of? |
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Definition
| -anthroprogenic conc. from waste incineration, coal burning, chlorine prod., ore extraction -bio accumulates and bio magnifies |
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Term
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Definition
acute exposure: inc. metabolic rate
Chronic exp: impaired feeding ability (slowed down)
Dietary ingestion: severe liver damage, decreased fecundity |
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Term
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Definition
-mobilization of Al. with decrease in PH
-Al. ^ mucus prod. (dec. gill efficiency) & dec. survival of eggs |
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Term
| movement impacts of culverts, dams, and water diversion |
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Definition
| - effects diadromous fish (spawn&grow in diff. areas) |
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Term
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Definition
| spawn in freshwater, grow in marine |
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Term
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Definition
| spawn in marine, grow in fresh |
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Term
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Definition
| ecotone between terrestrial and aquatic zones,within flood plain |
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Term
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Definition
| behaviors and movements of one fish species that relates to another. Ex: spawning methods, migration patterns |
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Term
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Definition
| nonindigenous that have moved beyond their natural range/zone of potential dispersal |
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Term
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Definition
Impetus(cause): response to negative ecological interface/normal life history
Limiting factors:mobility, biological barriers, climate, food, physical barriers, predators/competitors |
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Term
| Dispersal (nonindigenous) |
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Definition
Impetus: humans (for food, sport, bio. control)
Limiting factors: bio barriers, climate, food, predators/competitors, policy, education, outreach |
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Term
| Perfect nonindigenous species |
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Definition
-High reprod., dispersal rates and genetic variability
-rapid maturity, broad native range, high tolerance of water qualities, flexible with habitats |
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Term
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Definition
| habitat degradation causes unfavorable conditions for native species |
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Term
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Definition
| biotic interactions in the form of predation, competition, disease/parasites |
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Term
| Bio and Human impacts of nonindigenous plants |
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Definition
| Bio: shading, sequestering nutrients, o2 depletion Human: navigation, aesthetics, loss of sport fish, toxic algal blooms |
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Term
| examples of invasive species |
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Definition
| grass carp, zebra mussel, lionfish, asian carp |
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Term
| Impact of increase in H2O temp |
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Definition
-increase in metabolism & energetic needs
-decrease in growth if prey prod. insufficient
-critical thermal maximum can be reached |
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Term
| Cascading impacts of increase in H2O temp |
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Definition
-change in Carbon input/nutrient loading
-change in sediment loads/mobilization of contaminants
-habitat availability, increase in invasive species, movement changes |
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Term
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Definition
| reference point for measuring health of ecosystem |
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