Fish Diversity and Water Quality of Ayamaru Lake, West Papua

Abstract

Ayamaru lake is one of the lakes in West Papua categorized as karst lake. It is endowed with fish diversity in various ornamental fish and consumption fish with high economic value. Recently, a number of floating net cages is set up, and before causing serious damage, management for keeping the sustainability of fish resources, especially the endemic species, needs to be proposed. This paper would contribute information on fish diversity and the water quality of Ayamaru Lake. The study was conducted in March, July, and November 2019 at Ayamaru Lake, Maybrat Regency, West Papua Province. The data were collected by conducting direct survey, interviewing the fishers, and the related institution, as well as searching the previous studies. Fish and water samples were taken from five stations. The results showed that 15 freshwater fishes were identified. The capture fisheries were practiced using the environment-friendly fishing gears. The water quality was still quite useful to support fish life. To reduce the threat to the presence of endemic fish in the lake, it needs to regulate the release of introduced species by the community, and control the escaped fish from the culture area.

Fishery of Urisa River in West Papua

“…West Papua's inland waters has varied in rivers, lakes, or swamps, and endowed by huge diversity. There were few studies of inland fisheries in West Papua such as: Hadiaty et al in 2012 succeeded to identify 4 new species of rainbow fish (namely: Melanotaenia arguni/Arguni Rainbowfish, Melanotaenia urisa/Urisa Rainbowfish, Melanotaenia veoliae/Veolia Rainbowfish, and Melanotaenia wanoma/Wanoma Rainbowfish) [4], genetic diversity of Boeseman´s Rainbowfish (Melanotaenia boesemani) [5], and fish diversity in Ayamaru Lake [6]. Nevertheless, the fishery study in Urisa River has not available yet.…”