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Dropline
Fisheries glossary |
A fishing line with one or more hooks, held vertically in the water column with weights and generally used on the continental shelf and slope. several droplines may be operated by a vessel, either on manually or mechanically operated reels.
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Continental, английский
- Limits, united states границы континентальной части сша
- Континентальный
Mechanically, английский
Mechanical, английский
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Bottom trawling, английский
A fishing method that involves towing trawl nets along the sea floor. bottom trawling can cause serious damage to sea floor habitats.
Downwelling, английский
- A downward movement (sinking) of surface water caused by onshore ekman transport, converging currents or when a water mass becomes more dense than the surrounding water.
- The process whereby prevailing seasonal winds create surface currents that cause surface water to sink, bringing nutrient-poor ocean surface water into an area.
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