TWO EXPERIMENTAL FISH AGGREGATING SYSTEMS (FADs) IN THE AEGEAN SEA: THEIR DESIGN AND APPLICATION

被引:0
|
作者
Ozgul, Aytac [1 ]
Lok, Altan [1 ]
Duzbastilar, F. Ozan [1 ]
机构
[1] Ege Univ, Fac Fisheries, TR-35100 Izmir, Turkey
关键词
Fish aggregating system; FADs; Wave current and effects; Aegean Sea; ARTIFICIAL REEFS; ASSEMBLAGES;
D O I
暂无
中图分类号
Q17 [水生生物学];
学科分类号
071004 ;
摘要
Two steel spar buoys were constructed and moored in 50 and 100 m deep of water in the Aegean Sea to support recreational fisheries. The first FAD was deployed at coordinates 38 degrees 01'48 '' N 26 degrees 58'02 '' E and at a distance of 3 nautical miles from the shoreline. The other FAD was moored at 1.1 nautical miles from the shoreline at coordinates 38 degrees 03'11 '' N; 26 degrees 59'01 '' E. An anchor (1.2x1.2x0.8 m3) weighing approximate 2.76 metric ton, made of reinforced concrete, was used to hold a FAD weighing approximate 1.5 metric ton. Hardware and connections of FADs, ropes, mooring calculation and anchor design were made. The interaction between the forces of wave and current and FADs in those waters was investigated. In the experiment, all forces (drag force, buoyancy force etc.) acting on FADs were calculated. It is proposed that the construction of the FADs should take the following design criteria into consideration: wave and current, forces related to the FADs, deployment depth, mooring hardware and ropes. This knowledge provides an important reference for stakeholders performing projects aiming to increase the performance and service life FADs.
引用
收藏
页码:13 / 19
页数:7
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