農業部-水產試驗所全球資訊網農業部-水產試驗所全球資訊網

沿近海域之燈火漁業為台灣海洋漁業之重要漁業之一，年產量約25,000公噸，主要作業漁場為台灣北部及澎湖附近海域，目前由於漁業管理上之需要，對於集魚燈燈光功率之規範以及漁場資源情報之蒐集，亟待投入試驗與研究。本年度之主要工計畫有集魚燈燈光功率與漁獲關係之研究及澎湖海域 、鎖管漁業資源之研究等兩項，其計畫內容摘要如下：1.燈火漁業集魚燈燈光功率與漁獲關係之研究本項執行之主要目的是在究明台灣北部地區燈火漁業之生產結構實況及其產出情形，並藉此調查過程瞭解影響漁場變動之因素所在。其方法係於台灣北部海域燈火漁業作業漁期，派員前往燈火漁業之主要漁港隨標本船出海作業，量測標本船集魚燈下之甲板及水中照度，同時也蒐集漁獲資料。另一方面，於5至10月期間亦派遣海建號試驗船前往台灣北部海域鎖管漁場，蒐集水文及浮游生物等漁場環境資料。此外，亦至相關漁會請其協助，對燈火燈船集魚燈功率逐一查訪，期能對燈火漁業從事整合分析。本計畫實施後，將提供集魚燈之誘魚效果以及燈火漁業經濟產出之初步實況及提供規範燈火漁業之科技依據。2.澎湖海域 、鎖管漁場資源研究擬對澎湖南方至台灣堆海域遂年分區實施調查，以期建立鰛、鎖管漁業之基礎資料庫，研提資源利用之參考。其工作項目如下：(1)觀測點之水文資料季節變化。(2)動物性浮游生物及仔稚魚之分佈。(3)海潮流之變動。(4)主要之魚獲種類。(5)確立 、鎖管之生殖季節。(6)漁獲統計資料分析。

Light fisheries in coastal and offshore waters are important fisheries in Taiwan. Theirannual production is about 25,000 metric tons. The fishing ground is mainly distributedin the waters off northern Taiwan and the waters from southern part of Peng-Hu to theFormosa banks. For the need of fisheries management, how to define the capacity offishing lamps and intensive to collect the information of fishing ground, we need inputmore research in our future years. A study on the luring efficiency of fishing lamps inthe light fisheries, and investigation on the herring and squid fisheries resources in Peng-Hu waters, both are mainly purpose of this project. Their outlines are listed as follow:1. The luring efficiency of fishing lamps in the light fisheriesThe purpose of this study is trying to understand the input and output of light fisheriesin the waters of northern Taiwan. It also provided fishing mechanism during the fishingseason of light fisheries in the waters of northern Taiwan. We will also join with thesampling boat and have task to measure the illumination of fishing lamps either on deckor on underwater. The information of catch data is also collected. The hydrographic and plankton data will collected monthly by the R/V "Hai-Chien" in the waters alongLatitude 25°40′~26°20′, Longitude 121°00′~123°00′during the squidfishing season. Meanwhile, the capacity of fishing lamps of all light fishing boat willinvestigated in local ports of this area mentioend above. After integrated analysis, theluring effect of different capacity of fishing lamps in this fisheries and its totaleconomical output will be clarified in this final report. Those information will goodenough provided evidence to support the regulations of light fisheries.2.Studies on the herring and squid fisheries resources in Peng-Hu watersWe want to investigate the waters off southern part of Peng-Hu to the Formosa banks,and we will effectuate the investigations in those area in the following years. In order tobuild up the squid fishery's basic database, as the resource reference, the items as below:1.The change of seasons and seas in observed points.2.The distributions of animality nekton and alevin.3.The variation of flow velocity.4.Mainly fish species.5.The confirmation of squid's seasonal reproductive.6.The analysis of statistics' data in gained fish.