SAFS hosts weekly lunch-time seminars where students and faculty share findings from their current research. Read through our past seminars to get an idea of topics covered and be sure to check out our events calendar to download upcoming seminars on your calendar, or check out our list of upcoming quantitative seminars.

Winter 2016 upcoming seminar

Friday 3/11 at 12:30-1:30pm in FSH 203 

Join the seminar remotely.

Speaker: Nis Sand Jacobsen, Essington lab postdoc

Title: Size based models as tools for an ecosystem approach to fisheries management

Abstract: Ecosystem based fisheries management (EBFM) requires models that can simulate how fishing influences marine communities in regards to both direct and indirect effects. Size based models are a candidate framework to investigate long-term fishing strategies in EBFM. The models are based on individual level physiology and generally have a low set of parameters. Here I present two possible applications of size based models; 1) balanced harvesting has been suggested as an ecosystem wide fishing pattern that could potentially increase yields while conserving community structure. I show that both statements are true, but that the yield increase is marginal, and the consequence is a catch comprised of small fish with low economic value. 2) Fisheries are often associated with trade-offs (e.g., between yields and ecological objectives), which are enhanced at the ecosystem level. The optimal trade-off between these can be found by efficiency frontiers: the trade-off space where one objective cannot be improved without regressing another. I simulate the efficiency frontier between yields (biomass and economic) and an indicator of ecological state with novel calibrations of 5 large marine ecosystems, and show how management can improve on an ecosystem scale by considering indirect effects. Finally, I conclude on future directions and challenges related to the application of size based models.

 

 


Recent seminar topics and abstracts

Archived seminar schedules

Year Coordinator links to archives
2014–2015 Hilborn Lab fall/winter/spring
2013–2014 Branch Lab fall/winter/spring
2012–2013 Punt Lab fall/winter/spring
2011–2012 Anderson Lab fall/winter/spring
2010–2011 Kotaro Ono fall/winter/spring
2009–2010 Chantel Wetzel fall/winter/spring
2008–2009 Dawn Dougherty fall/winter/spring
2007–2008 Essington Lab fall/winter/spring<
2006–2007 Ian Taylor fall/winter/spring
2005–2006 Eric Ward all quarters
2004–2005 Jason Cope fall/winter/spring
2003–2004 Lucy Flynn fall/winter/spring
2002–2003 Gavin Fay fall/winter/spring
2001–2002 Carolina Minte-Vera fall/winter/spring
2000–2001 Juan Valero fall/winter/spring
1999–2000 Arni Magnusson fall/winter/spring
1998–1999 Ivonne Ortiz fall/winter /spring
1997–1998 Carlos Alvarez-Flores fall/winter/spring
1996–1997 Billy Ernst fall/winter/spring

Spring 2015 Seminars

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