Index Catalog // ScholarsArchive@OSU

Creator:: Scheld, Andrew M.
Abstract:: Climate change and continued fishing pressure threaten to increase recruitment variability for many stocks globally. Shifts in the inter-annual stability of an exploitable renewable resource may have dramatic consequences for the industries and communities which depend upon them. In this talk, the link between resource volatility and industry structure is...
Resource Type:: Presentation
Full Text:: climate change drive industry consolidation of global fisheries? Andrew M. Scheld Virginia

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:: Tegawa, Mihoko, Uchida, Hirotsugu, and Anderson, Christopher M.
Abstract:: We empirically disentangle the efficiency mechanism of revenue sharing, in which a group of harvesters shares catch and/or revenue among members of a fishery cooperative, by incorporating the influence of social capital. In addition to each of revenue sharing and social capital influencing a fishery independently we hypothesize social capital...
Resource Type:: Presentation
Full Text:: : FCA random effects i : FCA t : time • Random-effects model (or OLS) with wild cluster

Creator:: Aranceta-Garza, Fernando, Arreguín-Sánchez, Francisco, and Seijo, Juan Carlos
Abstract:: The Mexican shrimp fishery comprises a sequential fishery: an inshore fleet (IF) using cast nets and targeting juvenile shrimps; and the offshore fleet (OF) using trawler boats targeting adult shrimps. The main target species are brown, blue and white shrimps. Conventional aged-structured models are used to advice management of this fishery...
Resource Type:: Presentation
Full Text:: size-structure or “𝑵(𝒍,𝒕+𝟏)”, M & ft. Uses a transitional matrix (𝑨(𝒍,𝒌)) depending

Creator:: Rodríguez-García, Oswaldo Uriel, De Anda-Montañez, Juan Antonio, Valenzuela-Quiñonez, Fausto, Hernández-Flores, Alvaro, Salas-Márquez, Silvia, and María Da-Rocha, José
Abstract:: Management objectives of vulnerable fish species must focus on maintaining healthy population status. Hence, reference points should be constrained to ensure recruitment. We assessed bioeconomic reference points for the totoaba (Totoaba macdonaldi), an endemic fish to the Gulf of California, reaching lengths of 2 m and 25 years. Totoaba fishing...
Resource Type:: Presentation
Full Text:: Spawning aggregations 4 Introduction Fishing Mortality (F) 5 Big sized: TLmax ≈ 2 m Photo

Creator:: Criddle, Keith R., Warpinski, Stephanie, Herrmann, Mark, and Greenberg, Joshua
Abstract:: Alaska is the world’s principal supplier of Sablefish Anoplopoma fimbria a buttery-flavored whitefish greatly prized in Japan. Sablefish are distributed from Baja California to western Japan but the majority of commercial catches are from the Gulf of Alaska and the Aleutian Islands off Alaska. Landings volume and value of this...
Resource Type:: Presentation
Full Text:: 1995 2000 2005 2010 2015 (1 0 0 0 t ) TAC LandingsIF Q i m p le m en ta ti o n IFQs

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:: Holzer, Jorge and Qu, Qian
Abstract:: Management of data-poor fisheries typically relies on setting an annual catch limit (ACL) using catch-based methods that are concerned with estimating a sustainable harvest and hinge on the logic that historic catches reflect a level of exploitation the stock can sustain. The resulting harvest control rules routinely set ACLs at...
Resource Type:: Presentation
Full Text:: ∑ m=2 Cm,t (−∆m) + DtaTR1 ) B ′ (r) + A′ (r) (1−Mt) ]2 − T∑ t=1 F−1t [ Dta ST 1 B ′ (r) + A

Creator:: Hernández-Flores, Alvaro, Cuevas-Jiménez, Alfonso, and Aranda-Nah, Javier
Abstract:: In 2013 a stock of sea cucumber (Isostichopus badionotus) was discovered in northern shelf of Yucatan. A survey calculated a biomass of 17,600 tons. The species has an attractive price for local fishers, therefore, in order to avoid the “race for sea cucumbers” and the collapse of the stock, authorities...
Resource Type:: Presentation
Full Text:: (USD) Remaining Stock (t) Density (ind m-2) 1. Quota 5,550 A = $2.6 million 10,856 0.05 2

Creator:: Hernández-Flores, Alvaro
Abstract:: The status of many sea cucumber fisheries in the world is overexploited. Some of the reasons are: an increase in demand from China, the distance of these fisheries to China, and the high rate of fisheries development. Most sea cucumber fisheries are small-scale with a simple management system. To overcome overexploitation,...
Resource Type:: Presentation
Full Text:: -13 C u m u la ti v e C a tc h (t o n e s ) A b u n d a n c e (m il li o n

ScholarsArchive@OSU