"management and monitoring of deep-sea fisheries and stocks" deepfishman
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"Management and monitoring of deep-sea fisheries and stocks"
DEEPFISHMAN
Case Study 5
Data Rich Stock – NAFO Greenland halibut Sub-area 2 and Division 3KLMNO stock
Participants IEO
Person-months 4 3
NAFO Greenland halibut Sub-area 2 and Division 3KLMNO stockAreaFisheryRegulations
65° 63° 61° 59° 57° 55° 53° 51° 49° 47° 45° 43° 41°42°
44°
46°
48°
50°
52°
54°
56°
58°
60°
62°
NEWFOUNDLAND GRAND BANK
FLEMISHPASS
LABRADOR
GREENLAND0B
2G
2H
2J
3K
3L3M
3N3O
3Ps
1E
1F
200 MILE
LIMIT
NEWFOUNDLAND
FLE
MIS
H C
AP
LABRADOR
SEA
200 m1000 m
SAGLEKBANK
NAINBANK
HAMILTONBANK
NE N
EWFO
UN
DLAN
D
SH
ELF
HOPEDALE CHANNEL
CARTWRIGHT CHANNEL
HAWKE CHANNEL
LAURENTION CHANNEL
GULF
OFST. LAWRENCE
STRAIT OFBELLE ISLE
SACKVILLE SPUR
NAFO Area
Greenland Halibut Fishery
Fishing grounds: Between 600-1300 m. Depth Catch levels: 22.000 – 25.000 ton Countries: Spain, Portugal, Canada, Russia, etc Fleet: around 60 vessels Gear: Bottom trawl Last assessment:
XSA Model Explo. Biomass = 86.000 tons Fbar (5-10) = 0.432
Fishery regulations
Gear mesh size: 130 mm Minimum Fish size: 30 cm. TAC: 16.000 tons Recovery plan objective:
140.000 tons of Exploitable biomass in 2018
Deliverables
How and When
Deliverables I historical development of the fisheries, including catches and fleet.
Part of this point are now available (catches) in NAFO, the other points (development of the fishery and fleet) they would be callected by the proyect and it would be available in six mounths.
biological parameters of the target species with up to date description of the current knowledge of their life history pattern, stock structure and status The knowledge of the biolagical parameters and the life history are availables in
differents NAFO Scientific Council Research documents and we will try to compile this information for the final report.
The stock structure information is very poor and we will try to compile this information for the final report.
The most recent stock status information will be revise in the June meeting of the NAFO Sicentific Council and will be available in six mounths.
review of assessment method used so far The review of the assessment methods will be carried out in a special NAFO
working group in next June and the results will be available in six mounths.
Deliverables II inventory of the fisheries, biological, biodiversity and socio-
economic data currently available for management and monitoring purposes. These data are not available and they will be collected by the proyect. The biological and biodiversity data will be extracted of the scientific
surveys carried out in the area and we expect significant data available. The socio-economic data will be compile in colaboration with the industria
sector and some of these information will be limited and probably subject to a confidentiality restrition.
These information will be available in the final casy study report (12 months).
review of kown and likely impact of the fishery on deep-water biodiversity Information about this topic is available in the NAFO Working Group
Ecosystem Approach for Fisheries Management (WGEAFM) and they will meet next november and the information for the proyect it will be in the final casy study report (12 months).
Deliverables III
review of current and historical management and monitoring procedures. SWOT (Strength and weaknesses, Opportunities and threats) and gap analysis of past and present scientific projects and data collection programmes in terms of fulfilling the data requirements for adequate management and monitoring regimes. The first part of this point it would be available in the final report of the casy
study and part of this information can be found in the NAFO Scientific Council Study Group on Rebuilding Strategies for Greenland halibut met in Februry 2008.
Available Fishery Data
Available data from the commercial fisheries related to stock assessment (2007). (+ means data available).
Biological SamplingStock Country1Catch CPUE Sex Length Age IndividualWt. MaturitySA 2+3 Green- CAN + + + + + + land halibut EU/PRT + + + +
EU/ESP + + + +EU/EST +EU/LTU +FRA (SPM)+FRO +JPN +RUS + + +
Questions
What it would be the data level needed for the work packages, stock, country,?
What it would be the period for the data? It would be good have a format to the data
by package.
Appendix 1
Data availability
Case Study 5
Topic Data Greenland Halibut, NAFO
History
Catch R* (1960-1974) and R***(1975-2008)
effort R* (1960-2008) and C***( -2008)
Fleet C***(1991-2008)
Other History description of the Fishery C***
Topic Data Greenland Halibut, NAFO
Biology
Life cycle R*
B. parameters R**
Stock structure R*
Species ecol. R**
Biodiversity
Bycatch C***(1990-2008)
Benthos R** (NEREIDA)
VMEs R** (NEREIDA)
Fishing impacts R** (NEREIDA)
Ecosys. Funct.
Topic Data Greenland Halibut, NAFO
Economy
Fish prices C**
Fishing costs C*
Investment C*
Other
Social
Nb of companies C**
On-board employ. C**
land based employ. C*
Other
Topic Data Greenland Halibut, NAFO
Assess. Method and
data
Method used R***
Length distr R**
Data/c_at_age R**
CPUEs R**
Survey data R**
Others
Management
Procedure R***
Regulation R***
Impact on fleet R**
Other
Thank you for your attention