Estimate of number of Honmoroko <i>Gnathopogon caerulescens</i> caught by recreational anglers around Ibanaiko Lagoon, adjacent to Lake Biwa

Abstract

To estimate the catch of Honmoroko Gnathopogon caerulescens by recreational anglers around Ibanaiko lagoon, which is adjacent to Laka Biwa, for eŠectiveˆsheries management, we randomly interviewed anglers from

Juvenile migration of the exclusively pelagic cyprinid, Gnathopogon caerulescens (Honmoroko) in Lake Biwa, Central Japan

“…The river surface water is mostly stagnant, the flow ranging from 0 to 0·05 m s −1 . Gnathopogon caerulescens spawn in both the reed zone and inlets in the lagoon from early April to mid‐June (Kikko et al, , ), as well as a short distance along the Daido River (Kikko et al, ). Daily precipitation at Higashiomi City, the nearest meteorological observatory, was obtained from the Japan Meteorological Agency (http://www.jma.go.jp).…”

Daily growth increments in otoliths of wild‐caught honmoroko Gnathopogon caerulescens

“…Ibanaiko Lagoon, a shallow semi-enclosed lagoon (0Á5 km 2 , 1Á5 m mean depth) and its outlet (Daido River) to Lake Biwa, provide both a spawning and nursery habitat for wild G. caerulescens (Kikko, Kitakado, et al, 2015;Kikko, Okamoto, et al, 2015) and were selected as the study area. Gnathopogon caerulescens spawn not only in the reed zone but also in inlets of the lagoon from early April to mid-June ( Figure 1, Kikko et al, 2014, as well as a short distance along the outlet river (Kikko, Kitakado, et al, 2015). , boundary of the reed zone using plastic macrophytes as a spawning bed and incubated in aquarium tanks Taguchi et al, 2015; Table 1).…”