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Longlines
Fisheries glossary |
A long fishing line with many short lines, called snoods and carrying hooks, attached at regular intervals. pelagic longlines are suspended horizontally at a fixed depth using surface floats. demersal longlines are weighted at the seabed and have closer-s
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Horizontally, английский
Точность плюс-минус з см по вертикали и горизонтали ~ of separation точность разделения (зернистого материала на фракции)
Horizontal, английский
- Горизонталь; горизонтальный
- Горизонталь; горизонтальный 287
- At right angles to the direction of gravity; on the level; parallel to the horizon; neither vertical nor inclined.
- A direction parallel to the horizon, or what is commonly termed lying flat. one of the greatest inconveniences navigators have to struggle with is the frequent want of a distinct sight of the horizon. to obviate this a horizontal spinning speculum was adopted by mr. lerson, who was lost in the victory man-of-war, in which ship he was sent out to make trial of his instrument. this was afterwards improved by smeaton, and consists of a well-polished metal speculum about 3-1/2 inches in diameter, inclosed within a circular rim of brass, so fitted that the centre of gravity of the whole shall fall near the point on which it spins. this is the end of a steel axis running through the centre of the speculum, above which it finishes in a square for the convenience of fitting a
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Individual transferable quota (itq), английский
A management tool by which the total allowable catch quota is allocated to individual fishers or companies who have long-term rights over the quota or can transfer it to others by sale, lease, or will. see also quota.
Antarctic convergence, английский
A line encircling antarctica where cold, northward-flowing antarctic waters meet and sink beneath the sub-antarctic waters, creating an upwelling zone which is very high in marine productivity, especially in antarctic krill.
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