TopicTour:箱網養殖
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Strict Standards: Non-static method MagicWord::get() should not be called statically, assuming $this from incompatible context in /var/www/html/mediawiki/includes/Parser.php on line 1952
Strict Standards: Non-static method MagicWord::get() should not be called statically, assuming $this from incompatible context in /var/www/html/mediawiki/includes/Parser.php on line 1952
Strict Standards: Non-static method MagicWord::get() should not be called statically, assuming $this from incompatible context in /var/www/html/mediawiki/includes/Parser.php on line 1952
Strict Standards: Non-static method MagicWord::get() should not be called statically, assuming $this from incompatible context in /var/www/html/mediawiki/includes/Parser.php on line 1952
Strict Standards: Non-static method MagicWord::get() should not be called statically, assuming $this from incompatible context in /var/www/html/mediawiki/includes/Parser.php on line 1952
Strict Standards: Non-static method MagicWord::get() should not be called statically, assuming $this from incompatible context in /var/www/html/mediawiki/includes/Parser.php on line 1952
Strict Standards: Non-static method MagicWord::get() should not be called statically, assuming $this from incompatible context in /var/www/html/mediawiki/includes/Parser.php on line 1952
Strict Standards: Non-static method MagicWord::get() should not be called statically, assuming $this from incompatible context in /var/www/html/mediawiki/includes/Parser.php on line 1952
Strict Standards: Non-static method MagicWord::get() should not be called statically, assuming $this from incompatible context in /var/www/html/mediawiki/includes/Parser.php on line 1952
Strict Standards: Non-static method MagicWord::get() should not be called statically, assuming $this from incompatible context in /var/www/html/mediawiki/includes/Parser.php on line 1952
Strict Standards: Non-static method MagicWord::get() should not be called statically, assuming $this from incompatible context in /var/www/html/mediawiki/includes/Parser.php on line 1952
Strict Standards: Non-static method MagicWord::get() should not be called statically, assuming $this from incompatible context in /var/www/html/mediawiki/includes/Parser.php on line 1952
Strict Standards: Non-static method MagicWord::get() should not be called statically, assuming $this from incompatible context in /var/www/html/mediawiki/includes/Parser.php on line 1952
Strict Standards: Non-static method MagicWord::get() should not be called statically, assuming $this from incompatible context in /var/www/html/mediawiki/includes/Parser.php on line 1952
Strict Standards: Non-static method MagicWord::get() should not be called statically, assuming $this from incompatible context in /var/www/html/mediawiki/includes/Parser.php on line 1952
From PHSea
(Difference between revisions)
Revision as of 09:00, 1 April 2006
資料來源：http://www.linyhome.com/j/j616.htm
所謂的箱網養殖，英文叫 Net Cage ，是由網架、網、錨纜固定系統在海上組成一個圓柱型或立體造型的立體空間，並在其中放養若干鹹水魚類。和傳統養殖最大的不同，是箱網養殖是直接利用現成的海洋空間，不必像傳統的魚塭一樣在陸地上挖掘魚池，再引進海水或抽取地下水灌入池中，因此完全沒有造成土壤鹽化或地層下陷的問題。
一只箱網的基本組件包括魚網與牆網、浮架等，為防止海鳥偷吃箱網中的魚，還得在網上加裝頂網；同時，箱網需要以錨纜固定系統把箱網固定在海面上，不致被海流漂走。箱網大小依飼養魚類、業者需求有所不同，一般直徑從 10 公尺以下到 30 公尺以上，深度從 4 公尺到 10 公尺不等，網目最小的 2 公釐，最大可到 30 公釐，視魚類體型而定。
限於經濟規模箱網養殖通常是以一組 5 只到 10 只或更多的箱網組成一個養殖系統。由於工作不在陸地上而是在海上，業者必須有一艘工作筏；另外，洗網機和投餌機等附屬後勤設施也是不可缺少的。
由於海上箱網養殖是使用特定的海域，具有排他性。換言之，其他的拖網、繩釣或娛樂漁業者都是與鄰近漁港的漁民協商解決。因此漁業主管機關正研究修《漁業法》，未來通過立法程序之後，漁業權將以收費的方式租給業者。
對於農政單位這項計畫，業者無不採取觀望態度，因為海上箱網養殖成本過高，風險又大，養殖者短時間觀念無法予以扭轉，是現階段推動的主要障礙。
農委會表示，海上箱網養殖每公頃海域可容納5只箱網，以養殖業大宗之一的石斑魚為例，一套 10 只箱網的養殖系統產量與5公頃的陸上漁塭相當，約80公頓左右，但前者每年的利潤估計將近 1,200 多萬元，比後者的 1,400 多萬元低了 12.27% ，同時台灣附近海域氣候變化大，動輒三、四百萬元的箱網硬體設備投資極易因大風大浪而損毀，因此業者還是在慎重考慮中。
