Papua New Guinea/SPC Tuna Tagging Project: Papua New Guinea/SPC Tuna Tagging Project: PRFP linking to the bigger picturePRFP linking to the bigger picture
David ItanoDavid Itano 11
Kim HollandKim Holland 22
John HamptonJohn Hampton 33
1 University of Hawaii, Pelagic Fisheries Research Program
2 Hawaii Institute of Marine Biology, University of Hawaii
3 Secretariat of the Pacific Commission, Oceanic Fisheries Programme
Tuna resources of the Western and Central Pacific:Tuna resources of the Western and Central Pacific:historical overview: South Pacific Commission programshistorical overview: South Pacific Commission programs
•• Skipjack Survey and Assessment ProgrammeSkipjack Survey and Assessment Programme–– 1977 1977 –– 1980 (field operations)1980 (field operations)–– survey and stock assessment of WCPO survey and stock assessment of WCPO skipjack and tuna baitfishskipjack and tuna baitfish
resources for fisheries development and managementresources for fisheries development and management
•• Regional Tuna Tagging ProgrammeRegional Tuna Tagging Programme–– 1989 1989 –– 19921992–– emphasis on emphasis on yellowfin tunayellowfin tuna resource and assessment under rapidly resource and assessment under rapidly
increasing purse seine and longline exploitationincreasing purse seine and longline exploitation
•• Regional Tuna Tagging ProjectRegional Tuna Tagging Project -- Phase I: Papua New GuineaPhase I: Papua New Guinea–– Oceanic Fisheries Programme / Secretariat of the Pacific CommuniOceanic Fisheries Programme / Secretariat of the Pacific Community and ty and
the National Fisheries Authority / PNGthe National Fisheries Authority / PNG–– 2005 2005 –– 2006 (six months total)2006 (six months total)
tagging platformstagging platforms
RTTP RTTP –– M/V M/V Te Te TautaiTautaiSSAP SSAP –– HatsutoriHatsutori MaruMaru #5#5
PNG Tuna Tagging Project, Phase I PNG Tuna Tagging Project, Phase I –– M/V M/V SoltaiSoltai 66
polepole--andand--line gear for conventional taggingline gear for conventional taggingadfadf
Wake
PNGIndonesia
Federated States of Micronesia
Palau
Marshall Islands
KiribatiNauru
150 E
JAPAN
CNMI
Guam
Minami ToriShima
180170 E160 E
Australia
NewCaledonia
Vanuatu
SolomonIslands
Tuvalu Tokelau
W&FFiji
Tonga
Samoa
PhoenixIslands
Howland& Baker
Palmyra
Johnston
Jarvis
160 W170 W
Niue
Cook IslandsAmSamoa
Line Islands
French Polynesia
Pitcairn
10 S
150 W
HAWAII
140 W
20 N
USA
Mexico
130 W
0
10 N
Western and Central PacificResearch and Management
Western and Central Pacific Fishery Commission(Secretariat of the Pacific Community)
current exploitation levels in WCPOcurrent exploitation levels in WCPO
> 1000 mt/year since 1999> 1000 mt/year since 1999
increasing use of drifting (increasing use of drifting (redred) and) andanchored (anchored (greengreen) FADs) FADsby Purse Seine fleetsby Purse Seine fleets
recent exploitation levelsrecent exploitation levels
Papua New Guinea EEZ Papua New Guinea EEZ –– 250,000 to 400,000 250,000 to 400,000 mt of tropical tunas per yearmt of tropical tunas per year
Palau
MinamiTori Shima
NorthernMarianas
Guam
Papua New Guinea
Federated States of Micronesia
Solomon Is
New Caledonia
Australia
Wake
MarshallIslands
KiribatiNauru
Vanuatu
Fiji
Tuvalu
Matthew &
Howlandand Baker
Phoenix
Wallis & Futuna
Tokelau
AmSamoa
NiueTonga
WesternSamoa
Hawaii
Johnston
Palmyra
CookIslands
LineIslands
Jarvis
F
Indonesia
Philippines
Phase I study areaPhase I study area
Bismarck archipelago and Solomon SeaBismarck archipelago and Solomon Sea
Bismarck archipelago and Solomon SeaBismarck archipelago and Solomon Sea
140 E
PAPUANEW GUINEA
05 S
145 E
0
Manus Island
Bismarck SeaNew Ireland
New Britain
150 E 155 E
Solomon Sea
Bougainville
1000 (or so) anchored FADs1000 (or so) anchored FADs
Papua NewPapua NewGuineaGuinea
Skipjack Survey and Skipjack Survey and Assessment ProgrammeAssessment Programme
1977 1977 –– 19801980
data time seriesdata time series
Regional Tuna Tagging ProjectRegional Tuna Tagging Project1989 1989 –– 19921992
PNG Phase I: tag types for different objectivesPNG Phase I: tag types for different objectives
conventional dart tagsconventional dart tags
sonic transmitting tagssonic transmitting tags
data archiving tagsdata archiving tags
20 km
Oahu
Hawaii sonic tagging research Hawaii sonic tagging research
CO
Yellowfin &Yellowfin &bigeyebigeye
coco--residenceresidence
Rsmall small vsvs large YFTlarge YFT
LL
Yellowfin & bigeyeYellowfin & bigeyelonglong--term residenceterm residence
excursions away from FADsexcursions away from FADs
HonoluluHonolulu
interinter--FAD movementsFAD movements
vertical behaviorvertical behavior
trophic relationshipstrophic relationships
FAD related FAD related catchabilitycatchability
Tag types and objectivesTag types and objectivessonic and archival tags sonic and archival tags –– surgical implantationsurgical implantation
sonic receiverssonic receivers
experimental designexperimental designBasic Hardware (PFRP)Basic Hardware (PFRP)
•• 50 VEMCO VR2 sonic tag receivers50 VEMCO VR2 sonic tag receivers•• 150 V9 sonic 150 V9 sonic pingerpinger tagstags•• 120 V9P depth sensing sonic tags120 V9P depth sensing sonic tags
FAD related FAD related Objectives (size and species specific)Objectives (size and species specific)•• residence time and movement rates residence time and movement rates •• diurnal vertical behavior and finediurnal vertical behavior and fine--scale arrival and departure ratesscale arrival and departure rates•• interinter--FAD movements within FAD clustersFAD movements within FAD clusters•• examine schooling dynamics and synchronicityexamine schooling dynamics and synchronicity
Related studiesRelated studies•• double tagging with geodouble tagging with geo--locating archival tagslocating archival tags•• trophic studies via gut sampling and isotope analysestrophic studies via gut sampling and isotope analyses•• sonic monitoring of seamountssonic monitoring of seamounts•• recapture rates on and off FADsrecapture rates on and off FADs
Cruise 1: receiver equipped FAD clustersCruise 1: receiver equipped FAD clusters
Archival andsonic tag releases SKJ YFT BET TotalV9 sonic alone 7 13 6 26V9P sonic alone 0 6 2 8LTD 1110 archival 0 0 0 0LTD 2410 archival 0 0 1 1MK9 archival 0 1 0 1V9 + LTD 1110 0 0 5 5V9P + LTD 1110 0 1 0 1V9 + LTD 2410 0 0 1 1V9 + MK9 0 6 0 6totals 7 27 15 49
V9s used 7 19 12 38V9Ps used 0 7 2 9Sonic tag releases 7 26 14 47
initial data acquisitioninitial data acquisition
PNG Phase I , … and beyond PNGPNG Phase I , … and beyond PNG
•• Cruise 2 Cruise 2 –– March to June 2007March to June 2007
SPC plans for largerSPC plans for larger--scale tagging programscale tagging program
•• Phase II Phase II –– extension to other areas of the WCPOextension to other areas of the WCPO–– Covering SE Asia to the Central PacificCovering SE Asia to the Central Pacific
•• ApproachApproach–– Funding: several donors targeted, some secured,Funding: several donors targeted, some secured, WCPFC roleWCPFC role–– Larger vessel required, multiLarger vessel required, multi--vessel approach possible, International vessel approach possible, International
collaboration, i.e. IATTC liaison with Eastern Pacific Ocean regcollaboration, i.e. IATTC liaison with Eastern Pacific Ocean regionion
•• Establish a Project Steering Committee, seek WCPF Commission Establish a Project Steering Committee, seek WCPF Commission endorsementendorsement
•• Seek national collaboration/participationSeek national collaboration/participation
the endthe end
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