Deep-Sea Fisheries and Fish stocksMerete TandstadFAO

Overview of presentation:

1. Main fishing areas globally2. Main species and regional variations3. Vessels and gears4. Catch Trends5. Addressing impacts6. Concluding remarks

Major Deep-sea Fisheries Areas - North Atlantic

Major Deep-sea Fisheries Areas - South Atlantic

Major Deep-sea Fisheries Areas -N & S Pacific and Indian Ocean

Click to edit Master text styles Second level

Third level Fourth level

Fifth level

Major Deep-sea Fisheries Areas - Mediterranean

Main Species

Catch composition-variation between regions

Gear types

List of vessels authorized to fish in deep-sea fisheries in the high seas

the Cook Islands Spain France Estonia Japan Korea0

5

10

15

20

25

30

35

40

45

TrawlersGillnettersLonglinerstrap setters

Deep sea catchesDifficulty in determining data only for the high seas

1950

1952

1954

1956

1958

1960

1962

1964

1966

1968

1970

1972

1974

1976

1978

1980

1982

1984

1986

1988

1990

1992

1994

1996

1998

2000

2002

2004

2006

2008

0

2000000

4000000

6000000

8000000

10000000

12000000Epipelagic: tunas

Epipelagic: other species

Deep-water species

tonnes

1975 1980 1985 1990 1995 2000 2005 0

2 000

4 000

6 000

8 000

10 000

12 000

14 000

16 000

alfons inos

Indian Ocean Atlantic Ocean

1975 1980 1985 1990 1995 2000 2005 0

10 00020 00030 00040 00050 00060 00070 00080 00090 000

100 000

orange roughy

Indian Ocean Atlantic Ocean

1975 1980 1985 1990 1995 2000 2005 0

200

400

600

800

1 000

1 200

1 400

pelagic armourhead

Indian Ocean Atlantic Ocean

1975 1980 1985 1990 1995 2000 2005 0

5 000

10 000

15 000

20 000

25 000

30 000

35 000

40 000

toothfishes

Indian Ocean Atlantic Ocean

Catch trends- 4 Examples

1975 1978 1981 1984 1987 1990 1993 1996 1999 2002 2005 20080

50000

100000

150000

Environmental concerns

1. Target species 2. Bycatch species3. Ecosystem

structure & functioning

Sustainability (in relation to abundance, life history traits and life cycle)

Sustainability (in relation to abundance and life history traits)

Direct and indirect impacts on ecosystem structure and functioning

Impacts on Vulnerable Marine Species/habitats

coldwater corals of various types e.g., reef builders and coral forest

sponge grounds communities composed of dense emergent fauna

Evaluating impacts and risks of a fishery- EAF tools

Fishery

Socio-Economic Wellbeing

Ability to Achieve

Retained

Non Retained

GeneralEcosystem

Community

National

Governance

Impact ofEnvironment

Target Species

By catch and protected species

Habitat impactsTrophic Changes

Socio economic at 2 different levels

Administration

External impacts both Natural and human induced

EcologicalWell-being

Calculating consequences for seabed habitats in relation to bottom trawling

3.57

3.64

3.18

3.88

3.88

3.61

1.72 1.80 3.13

Susceptibility and productivity scores for various seabed habitats and bottom trawling

- Use of geological surrogates, scientific surveys and fisher knowledge

K. Sainsbury, 2009

Some Issues Assessing problems with implementation of the

Guidelines EIAs, risk assessments, VME identification, mitigation measures,

stock assessments, species identification, data limitations Opportunities

Working with industry to improve data and information, stimulate exchange of lessons learned, VME database, species identification guides, and data collection protocols

Slide 1Slide 2Major Deep-sea Fisheries Areas - North AtlanticMajor Deep-sea Fisheries Areas - South AtlanticSlide 5Major Deep-sea Fisheries Areas - MediterraneanMain SpeciesCatch composition-variation between regionsGear typesSlide 10Deep sea catchesCatch trends- 4 ExamplesSlide 13Impacts on Vulnerable Marine Species/habitatsEvaluating impacts and risks of a fishery- EAF toolsSlide 16Some Issues