Effects of entrance design on catch efficiency of arabesque greenling traps: a field experiment in Matsumae, Hokkaido

Autor:	Katsutaro Yamamoto, Hiroyuki Yoshino, Katsuaki Nashimoto, Yong Li, Tomonori Hiraishi
Rok vydání:	2006
Předmět:	Animal science Field experiment Inclination angle Fishing Length frequency Environmental science Fish Aquatic Science Trap (plumbing)
Zdroj:	Fisheries Science. 72:1147-1152
ISSN:	1444-2906 0919-9268
Popis:	A field experiment was conducted in the Matsumae area of Hokkaido, Japan, during June and July 2002, to investigate the effects of different entrance designs on the catch efficiency of fish traps by fishing with commercial traps (entrance inclination angle [α]=37°; funnel length of entrance [L f]=22 cm) and experimental traps. The experimental traps were of the same size and similar design as commercial traps, with different entrance inclination angles (trap E1: α=46°; E2: α=27°; E3: α=0°; all L f=22 cm) or funnel lengths (E4: α=37°, L f=8 cm). In total, 2200 fish during 200 trap hauls were captured. The catch was significantly higher using both traps E2 and the commercial trap than with trap E3 (P
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::a65806cc643cc0be4209a6f28937cda3 https://doi.org/10.1111/j.1444-2906.2006.01271.x Zobrazit plný text záznamu Plný text ve formátu PDF