Download Salmon Shark Tagging

yes no Was this document useful for you?
   Thank you for your participation!

* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project

Document related concepts
no text concepts found
Kevin Weng, Program Manager
Joint Institute for Marine and Atmospheric Science
University of Hawaii at Manoa
Photo : K Weng
Kevin Weng 1
History of the PFRP
• Established 1992: John Sibert, Program Manager
• Univ of Hawaii – SOEST – JIMAR (Coop. Inst.)
• Magnuson Stevens Act amended to include
"highly migratory fish” – large increase in role of
• Science, social science & economics relevant to
fishery management
• Tunas, billfishes, sharks, protected species
Kevin Weng 2
• Annual request for proposals with peer
review, panel and steering committee
• Budget: 0.5 – 2 million USD annually
• Earmark / Bluebook
• Participation in WesPac, WCPFC meetings
• Oversight by University, NOAA, WesPac
Kevin Weng 3
Kevin Weng 4
Kevin Weng 5
End-to-end Ecosystem Model: SEAPODYM
Lehodey, P., Senina, I., and Murtugudde, R., 2008, A spatial
ecosystem and populations dynamics model (SEAPODYM) Modeling of tuna and tuna-like populations: Progress in
Oceanography, v. 78, p. 304-318.
Lehodey, P., Senina, I., Sibert, J., Bopp, L., Calmettes, B.,
Hampton, J., and Murtugudde, R., 2010, Preliminary forecasts
of Pacific bigeye tuna population trends under the A2 IPCC
scenario: Progress in Oceanography, v. 86, p. 302-315.
The PFRP has funded development of computer models that
describe the entire ecosystem, from climate to algae to the animals
that eat them—and the big animals that humans like to eat. Such
models will bridge the gap between single species management and
ecosystem-based management. This figure shows an estimate of
skipjack tuna distribution from the SEAPODYM model (Source: I.
Senina, P. Lehodey).
Lehodey, Senina et al
Kevin Weng 6
Modifying longlines to avoid turtles and birds
Beverly, Steve, Daniel Curran, Michael Musyl
and Brett Molony. 2009. Effects of eliminating
shallow hooks from tuna longline sets on
target and non-target species in the Hawaiibased pelagic tuna fishery. Fisheries
Research 96 (2009) 281-288.
PFRP-funded research showed that when sea
turtles are caught on longlines, they are nearly
always on hooks that are nearer to the surface of
the water. As a result, the catch of turtles can be
reduced by deploying the longline so that the
hooks are deeper in the water (Photos: Y.
Swimmer, K. Weng).
Swimmer, Y., R. Arauz, B. Higgins, L.
McNaughton, M. McCracken, J. Ballestero,
and R. Brill, 2005. Food color and marine
turtle feeding behavior: Can blue bait reduce
turtle bycatch in commercial fisheries? Marine
Ecology Progress Series, v. 295: 273-278,
June 23, 2005
Kevin Weng 7
eg turtles,
Kevin Weng 8
Fournier, D., Hampton, J., Sibert, J., 1999. MULTIFANCL: a length-based, age-structured model for fisheries
stock assessment, with application to south Pacific
albacore, Thunnus alalunga. Canadian Journal of
Fisheries and Aquatic Sciences, 55:2105 - 2116
Kevin Weng 9
• Stock assessments
used by international
Kevin Weng 10
• Easy front end to
• Usable by managers
• During meetings /
• Allows new scenarios to
be evaluated without
lengthy back-and-forth
with science provider
Hoyle, Hampton et al. SPC
Kevin Weng 11
Kevin Weng 12
Thank you
Kevin Weng 14