Index Catalog // ScholarsArchive@OSU

Creator:: Mafimisebi, Taiwo, Famoofo, Abidemi, and Mafimisebi, Ojuotimi
Abstract:: Use of indigenous knowledge systems (IKS) is critically important in production systems and environmental management in Nigeria. Despite the importance of fisheries to Nigeria’s economy and the indispensable role of IKS in it, IKS used in fishing households have not been adequately researched. This study identified and examined the utilization...
Resource Type:: Presentation
Full Text:: SYSTEMS IN ARTISANAL AND COASTAL FISHING IN SOUTHWEST, NIGERIA By *Mafimisebi, T.E. and Famoofo, T.A

Creator:: Hutniczak, Barbara and Münch, Angela
Abstract:: The Baltic fishery is managed under the European Union Common Fisheries Policy (CFP) which defines procedures for setting annual total allowable catches (TAC) for major commercially harvested species. TACs are given as fixed shares to each member state by applying the principal of relative stability. Poland uses non-tradable individual vessel...
Resource Type:: Presentation
Full Text:: during the previous trip Harvest H(Xij) h1 h_c Harvest of cod (in t) h2 h_f Harvest of flounder

Creator:: Shriver, Ann
Resource Type:: Conference Proceeding
Full Text:: @univ-brest.fr John Ledyard California Institute of Technology 1200 E. California Blvd Pasadena

Creator:: Scheld, Andrew M., Bilkovic, Donna M., and Havens, Kirk J.
Abstract:: Several factors currently threaten blue crab (Callinectes sapidus) in the Chesapeake Bay. In addition to poor water quality, degraded habitat, and shifting environmental conditions, derelict gear has recently been recognized as a significant source of mortality for this economically and culturally significant species. From 2008 through 2014, commercial watermen in...
Resource Type:: Presentation
Full Text:: Harvest Function ' ' it it t it it it t it q E X H q E X D α θ α θ ϕ  =   if no derelict pots

Creator:: Jardine, Sunny and Sanchirico, James N.
Abstract:: Fishing impacts biodiversity on multiple levels, potentially resulting in unintended feedbacks to economic performance of the fishery over time. For example, targeting observable traits within a population can impact genetic diversity, targeting populations within a species can impact population diversity, and targeting valuable species can impact biodiversity at the ecosystem...
Resource Type:: Presentation
Full Text:: if τ < t ≤ τ + ` 0 Otherwise (1) E(t) = ∑ s Es(t) = ∑ s m s t−`(t − `)︸︷︷︸ Number

Creator:: Holland, Dan and Steiner, Erin
Abstract:: Individual fishing quota (IFQ) systems are typically expected to increase the profitability of a fishery and improve sustainability by ensuring catches remain within quotas. They can also have important distributional and ecological implications that result from shifts in catch and effort between different gears, regions, and habitats. In multispecies fisheries...
Resource Type:: Presentation
Full Text:: 50 75 100 2 0 1 1 2 0 1 2 T ra w l L o n g lin e P o t T ra w l L o n g lin e P o t

Creator:: Molina, Renato, Costello, Chris, and Gaines, Steve
Abstract:: The lack of property rights in fisheries is a well-known source of undesirable outcomes in terms of sustainability and profitability for fisheries. Both Territorial User Fishing Rights (TURF) and Marine Protected Areas (MPA) have been proposed as a tool for managing coastal fisheries, recovering stocks and improving fishing yields; it...
Resource Type:: Presentation
Full Text:: 0.25 0.3 0.35 Biomass L o n g − ru n H a rv e s t 0 0.1 0.2 −0.08 −0.06 −0.04 −0.02 0

Creator:: Ravn-Jonsen, Lars, Andersen, Ken H., and Vestergaard, Niels
Abstract:: Ecosystem externalities arise when one use of an ecosystem affects its other uses through the production functions of the ecosystem. We use simulations from a size-spectrum ecosystem model to investigate the ecosystem externality created by fishing of multiple species. The model is based upon general ecological principles and is calibrated...
Resource Type:: Presentation
Full Text:: forage fish’s fishing mortality 0 .0 0 .1 0 .2 to n y e a r- 1 C h a n g e H a rv es t 0 5 10 15 -1

Creator:: Poudel, Diwakar
Abstract:: This study suggests an optimal harvest policy for Barents Sea species, namely Northeast Arctic Cod (Gadus morhua) and Capelin (Mallotus villosus) in the multispecies ecosystem. We have solved a multispecies age structured bioeconomic model for predator-prey interaction. Barents Sea stock data from ICES (International Council for the Exploration of the...
Resource Type:: Presentation
Full Text:: : Cx,a,t = ∫ t+1 t kx hx Ex,t{[N1−αx,a,t + kx hx Ex,t Mx,a ]e(−Mx (1−α)t) − kx hx Ex,t Mx,a } 1 1

Creator:: Bellanger, Manuel, Merzereaud, Mathieu, Guyader, Olivier, and Macher, Claire
Abstract:: Integrating governance mechanisms into bio-economic modeling tools is a key challenge for the assessment of fisheries management plans. Impact assessments are carried out without considering real management options and institutional context. Only fishing mortality changes and their impact on fish stocks are considered. The Bay of Biscay sole fishery offers...
Resource Type:: Presentation
Full Text:: 5 0 0 0 6 0 0 0 0 6 5 0 0 0 Total effort 'Sole metier' Year D a y s a t s e a

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