Lamna nasus - Cites

Annexes to Draft Proposal to list Lamna nasus in Appendix II - January 2012
Table 3. Summary of population and catch trend data
Year Location Data used Trend Source
1933/37–
2004/08
NE Atlantic
1936–2007 NE Atlantic
1950/54–
2004/08
1986–2007 NE Atlantic
1972–2007 NE Atlantic
All Northeast
Atlantic landings
Norwegian
landings
87% decline in 5 yr average landings
from historic baseline
>99 % decline from historic baseline.
Trend is the same if 5-year averages are
used.
NE Atlantic Danish fishery 99% decline from historic baseline
Spanish longline
bycatch CPUE
French target
longline CPUE
1926–2008 NE Atlantic Stock assessment
Various,
1800–2006
1950–2006
1978–1999
Mediterranean Records of Lamna
nasus
Ligurian Sea,
Mediterranean
Ionian Sea,
Mediterranean
1963–1970 NW Atlantic
1961–2008 NW Atlantic
1961–2005 NW Atlantic
1961–2005 NW Atlantic
1961–2005 NW Atlantic
Abundance &/or
biomass of
lamnids
Standardised
CPUE of lamnids
Norwegian &
Faroese landings
5 year average of
all catches
Stock assessment
(surplus
production model)
Stock assessment
(age structured
model)
Stock assessment
(age structured
model)
Annexes p. 3 of 24
SCRS (2009); FAO (2010)
Norwegian and ICES data (Figure 7);
SCRS (2009); FAO (2010)
ICES data (Figure 8); SCRS (2009); FAO
(2010)
No trend in recent catch rates ICES WGEF (2011).
Approximately one third decline in two
most recent generations
94% decline in biomass, 93% decline in
numbers from historic baseline
Virtual disappearance from landings and
research survey records
>99% decline in tuna traps Ferretti et al. 2008
>98% decline in tuna traps Ferretti et al. 2008
~90% decline in catch and collapse of
fishery
ICES WGEF (2011); Biais and Vollette
(2009)
Surplus production age-structured model
ICCAT/ICES 2009 (Figure 11)
Stevens et al. 2005 and sources cited in
section 4.1.1.
Landings data (Figure 12)
~96% decline Landings data (Figure 12)
68% decline in stock biomass from
historic baseline
73–78% decline in total numbers from
historic baseline
84–88% decline in number of mature
females from historic baseline
AC26 Doc. 26.2
Annex / Anexo /Annexe
(English only / únicamente en inglés / seulement en anglais)
Campana & Gibson 2008, ICCAT
SCRS/ICES 2009, Campana et al. 2010b
Campana & Gibson 2008, ICCAT
SCRS/ICES 2009, Campana et al. 2010b
Campana & Gibson 2008, ICCAT/ICES
2009, Campana et al. 2010b
1994–2003 North Atlantic Catches Decline, 1000 to near zero/year Matsunaga and Nakano 2005
1993–2003 North Atlantic CPUE
Stock assessment
Decline with slope -0.6 Matsunaga and Nakano 2002
1961–2008 SW Atlantic
(catch free, age
structured
production model)
82% decline in spawning stock biomass
(SSB) from historic baseline
ICCAT/ICES 2009 (Figure 19)
1982–2008 SW Atlantic
SW Pacific
Stock assessment
(surplus
production model)
61–82% decline in stock biomass from
historic baseline
ICCAT/ICES 2009 (Figure 19)
1992–2002 (New
Zealand)
SW Pacific
Longline CPUE 70% decline in about 10 years NZ Ministry of Fisheries 2008 (Figure 17)
1998–2005 (New
Zealand)
Weight landed 75% decline in about 10 years NZ Ministry of Fisheries 2008 (Figure 16)
A ‘marked historical extent of decline’ is a percentage decline to 5%–30% of the baseline, depending upon the productivity of the species
[30% for porbeagle]. A ‘marked recent rate of decline’ is a percentage decline of 50% per cent or more within the last 10 years or three
generations, whichever is the longer
AC26 Doc. 26.2, Annex 1 – p. 17