000 | 00848nam a22001817a 4500 | ||
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003 | AR-PmCCT | ||
008 | 240105b |||||||| |||| 00| 0 spa d | ||
082 |
_220 _a639.2 |
||
100 |
_95540 _aCarrothers, P. J. G. |
||
245 | 1 | 0 | _aInstrumentation for the engineering study of otter trawls |
260 |
_aOttawa : _bFisheries Research Board of Canada, _c1968 |
||
300 | _avii, 45 p. | ||
490 |
_a(Bulletin / Fisheries Research Board of Canada ; _v163) |
||
505 | _aIntroduction. -- Warp tensions. -- Warp angles. -- Warp length and trawl depth. -- Towing speed and hydrodynamic pressure. -- General development of underwater instruments elsewhere. -- Trawl mouth dimensions. -- Underwater line tensions. -- Features common to all FRB underwater instruments. -- Conclusions. | ||
650 | 0 |
_94999 _aPESCA ARTESANAL |
|
942 |
_2ddc _cLIBRO |
||
952 | _2ddc | ||
999 |
_c4812 _d4812 |