PMID: 18213968Jan 25, 2008Paper

Modeling spawning dates of Hucho taimen in Mongolia to establish fishery management zones

Ecological Applications : a Publication of the Ecological Society of America
M Jake Vander ZandenJun Zhu

Abstract

The ecological impacts of recreational fisheries are of growing concern and pose a number of unique management challenges. Here we report on our efforts to provide guidance for managing a recreational fishery for taimen, the giant Eurasian trout (Hucho taimen) in Mongolia. This species has declined dramatically across its range of Siberia and Central Asia, and is currently listed as endangered in Mongolia. Strong populations persist in remote regions of Mongolia because of limited anthropogenic impacts and harvest, though interest in the fishery is expanding rapidly. Current fishing regulations list the spring "opening date" for taimen fishing as 15 June, although regulations have not been consistently enforced, partially because taimen spawn much earlier than 15 June in much of the country. Through a combination of statistical models, climate data, knowledge of taimen biology, and geographic information systems (GIS), we model taimen spawning dates for potential habitat in Mongolia. A parametric bootstrap procedure was used to simulate variability in spawning date derived from inter-annual climate variability and model error, from which we estimated the date in which taimen spawning is predicted to occur with 90% confidence. W...Continue Reading

References

Apr 9, 1999·Science·E OstromD Policansky
Aug 28, 2004·Science·Felicia C ColemanLarry B Crowder
Dec 13, 1968·Science

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Citations

Jul 6, 2010·Ecological Applications : a Publication of the Ecological Society of America·Douglas P PetersonJames A Brammer

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