2013年5月14日 星期二

南葡萄牙休閒岸釣漁獲量:對資源保護及整合性漁業管理之影響

南葡萄牙休閒岸釣漁獲量:對資源保護及整合性漁業管理之影響

文章日期:2013-05-13 16:53
Veiga P. , J. Ribeiro, J. M. S. Gonc¸alves and K. Erzini. (2010). Quantifying recreational shore angling catch and harvest in southern Portugal (north-east Atlantic Ocean): implications for conservation and integrated fisheries management. J. FISH. BIOL. , 76: 2216-2237.
隨著人類休閒生活發展,漁釣漁業已經在某些國家慢慢的超越商業漁業囉~~
摘要
沿著葡萄牙西南部250公里調查休閒岸釣區域漁獲量及空照之研究並統計從2006年8月至2007年7月期間,依層級隨機抽樣設計以及漁獲量、努力量、丟棄量、釣客人口統計和釣魚習慣之訊息提供。總共進行了192個區域漁獲量調查、24張空照以及訪問1321位。空照部分,總釣魚努力量估計約每年705236 ± 32765小時(平均±標準誤),相對應每年約166430 ± 9792釣魚人次,則平均每個釣魚人次花費4.7個小時。區域漁獲量調查共記錄了22科,48個物種,其中主要的物種是Diplodus sargus(鯛科),約佔總漁獲數44%,漁獲量48%。年度總休閒岸釣漁獲量估計約一年162.2 ± 12.6公噸(一年788049 ± 54079條魚) (平均±標準誤),被保留約一年147.1± 11.9公噸(每年589132 ± 42360條魚)。雖然整體休閒岸釣漁獲量佔商業業性漁獲量約0.8%(僅含常見物種),但D. sargus在休閒岸釣漁獲量佔商業性漁獲量65%。就整合性漁業管理以及資源保護結果之影響討論並提出今後可行的研究
Abstract
Recreational shore fishing along 250 km of the south and south-west coast of Portugal was studied based on roving creel and aerial surveys. Surveys were conducted between August 2006 and July 2007, following a stratified random-sampling design and provided information on catch and effort, harvest and discards, angler demographics and fishing habits. Overall, 192 roving creel surveys, 24 aerial surveys and 1321 interviews were conducted. Based on the aerial surveys, a mean ± S.E. total fishing effort of 705 236 ± 32 765 angler h year−1 was estimated, corresponding to 166 430 ± 9792 fishing trips year−1. Average time spent per fishing trip was 4.7 h. A total of 48 species, belonging to 22 families, were recorded in roving creel surveys. The most important species was Diplodus sargus, accounting for 44% of the total catches by number and 48% by mass. Estimated mean ± S.E. total annual recreational shore fishing catch was 160.2 ± 12.6 t year−1 (788 049 ± 54 079 fishes year−1), of which 147.4 ± 11.9 t year−1 (589 132 ± 42 360 fishes year−1) was retained. Although overall shore-based recreational catches only corresponded to 0.8% of the commercial landings (only common species considered), D. sargus catches by recreational shore anglers were considerable, corresponding to 65% of the commercial landings. The implications of these results for integrated fisheries management and conservation are discussed, and future research proposed.