從手機照片得知岸際垂釣魚種組成與體長可行性分析

Analysis of the Species Composition and Body Length of Shore Fishing from Mobile Phone Photos by Anglers

國際研究指出休閒漁業對特定族群移除量高於以往認知，運用手機拍照可能是立即掌握休閒垂釣漁獲現況的可行方式。本調查利用手機拍攝以路亞釣獲魚隻照片並記錄詮釋資料，分析發現岸際常釣獲魚隻體長多在30 cm以下，在墾丁和成功釣獲魚種類別與麟山鼻和灰窯子不同，八斗子與龍洞海域的玳瑁石斑在春夏交際體型較小、秋冬之際較大。

International studies have indicated that the removal of particular fish stocks by recreational fisheries are higher than commonly perceived. Smartphone is an immediate and potential tool to collect useful recreational fisheries data. This research uses a smartphone to take photos of the fish caught by lure fishing and the accompanying metadata. The results show that most of the fish caught along the coast are less than 30 cm in length. The benthic fish species assemblage in Kenting and Chenggong are different from the species in Linshanbi and Huayozhi. Compared to other months, the body length of groupers, Epinephelus quoyanus, caught from April to June in Keelung, were smaller.