Optimal Bioeconomic Multispecies Fisheries Management: A Baltic Sea Case Study

Regional trade-offs from multi-species maximum sustainable yield (MMSY) management options

“…Our model is an extension of the single-species age-structured fishery model of Tahvonen (2009) and Tahvonen et al (2013), similar in scope to that of Nieminen et al (2012). We use the subscript i ∈ {C,S,H } for the cod (C), sprat (S) and herring (H) fisheries.…”

“…Thus, fluctuations in the size of the cod stock are related to considerable changes in natural mortality rates of sprat and juvenile herring. Under optimal management, the cod fishery would be the most profitable fishery by far (Nieminen et al 2012. The combination of high fishing pressure and environment-driven low recruitment suc cess led to a decrease of the cod spawning stock biomass (SSB) from almost 700 000 to 100 000 t from 1983 to 1992, increasing shortly thereafter, but reaching a record low level in 2005(ICES 2012).…”

Increasing Pressure on Unregulated Species Due to Changes in Individual Vessel Quotas: An Empirical Application to Trawler Fishing in the Baltic Sea

“…This structure is thoroughly studied from the biological perspective (Sparre 1991;Magnusson 1995;Horbowy 2005;Heikinheimo 2011), but lacks economic linkages explaining individual vessel harvest decisions. Rather, the available literature offers fleet aggregated indices (Skonhoft, Vestergaard, and Quaas 2012;Nieminen, Lindroos, and Heikinheimo 2012).…”

Stochastic Optimization for Multispecies Fisheries in the Barents Sea

“…However, most of the studies focused on predators prey interactions between two species while three species continuous time interaction models are very few, although there is increasing interest in multispecies model in recent years (for example, Aanestad et al, 2009;Das, Srinivas, Srinivas, & Gazi, 2012;Nieminen, Lindroos, & Heikinheimo, 2012;Samanta, Manna, & Maiti, 2003;Sharma & Samanta, 2013).…”