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土耳其沿海中层和底层鱼类群体研究表明,渔获主要由亚成鱼组成。爱琴海的底鱼资源遭受过度捕捞这一迹象尤其明显,非法拖网捕捞、海岸线开发、污染、Posido-nia oceanica 草地的破坏是影响土耳其爱琴海沿海海洋生态系的主要原因。根据土耳其有关渔业法规,在深度急剧增加的海域离岸2.5km 以内水域禁止拖网捕捞,在海底坡度逐渐倾斜的海域离岸5km 以内水域禁止拖网捕捞。土耳其非法拖网捕捞频繁发生,尤其是在后一种情况下。人工鱼礁被认为是实施拖网禁令的一种办法,小型人工鱼礁主要设置于土耳其爱琴海沿海(图1)。
Studies on the middle and bottom fish communities along the Turkish coast show that catches are mainly composed of sub-adult fish. Evidence of overfishing of the fish stocks in the Aegean Sea is particularly evident with illegal trawling, coastline development, pollution and the destruction of the Posido-nia oceanica grassland as the main cause affecting the coastal marine ecosystem in Turkey’s Aegean Sea. According to the relevant fishery regulations in Turkey, trawling is prohibited in waters within 2.5km of offshore with a sharp increase in sea depth, and trawling is prohibited in waters within 5km from offshore where seafloor gradient is gradually inclined. Illegal trawling in Turkey is frequent, especially in the latter case. Artificial reefs are considered as a way to implement a ban on trawling, with small-scale artificial reefs located mainly along the Aegean coast of Turkey (Figure 1).