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REPORT OF THE FIFTH
MEETING OF THE COMITÉ
INTERNACIONAL PARA LA
RECUPERACIÓN DE LA
VAQUITA (CIRVA-5)
1995 2000 2005 2010 2015
year
0
200
400
600
800
1000
populationsize
ANNEX 6-8: ACOUSTIC MONITORING PROGRAM
Executive Summary of CIRVA-5
THE VAQUITA IS IN IMMINENT DANGER OF EXTINCTION
The fifth meeting of the Comité Internacional para la Recuperación de la Vaquita (CIRVA) was held
at the Hotel Coral y Marina in Ensenada, BC from July 8 – 10, 2014.
At its last meeting in 2012, CIRVA estimated about 200 vaquitas remaining. Since then, about half
of them are thought to have been killed in gillnets, leaving fewer than 100 individuals now. The
vaquita is in imminent danger of extinction.
EMERGENCY REGULATIONS ARE REQUIRED
Despite all efforts made to date, the most recent data show the vaquita population to be declining
at 18.5% per year (Fig. 1). The best estimate of current abundance is 97 vaquitas of which fewer
than 25 are likely to be reproductively mature females. The vaquita will be extinct, possibly by
2018, if fishery by-catch is not eliminated immediately. Therefore, CIRVA strongly recommends
that the Government of Mexico enact emergency regulations establishing a gillnet exclusion zone
(Fig. 2) covering the full range of the vaquita - not simply the existing Refuge - starting in
September 2014.
FULL ENFORCEMENT IS CRITICAL
Past at-sea enforcement efforts have failed and illegal fishing has increased in recent years
throughout the range of the vaquita, especially the resurgent fishery for another endangered
species - the totoaba. However, it is no longer sufficient to eliminate only illegal fishing as had first
been recommended as long ago as 1990 by the IWC Scientific Committee. With fewer than 100
vaquitas left, all gillnet fishing must be eliminated. To save this species from extinction,
regulations must prohibit fishermen from deploying, possessing or transporting gillnets within
the exclusion zone and must be accompanied by both at-sea and shore-based enforcement. CIRVA
recommends that the Government of Mexico provide sufficient enforcement to ensure that gillnet
fishing is eliminated within the exclusion zone. CIRVA further recommends that all available
enforcement tools, both within and outside Mexico, be applied to stopping illegal fishing,
especially the capture of totoabas and the trade in their products.
USE OF ALTERNATIVE GEAR
CIRVA commends the work undertaken to date on developing alternative fishing gear to gillnets
but it is concerned at the slow progress of implementing the transition despite existing legislation.
It recommends increased efforts to introduce alternatives to gillnet fishing in the communities
that will be affected by enforcement of the exclusion zone.
CONTINUED MONITORING IS ESSENTIAL
Finally, CIRVA commends the excellent vaquita monitoring program and associated research. The
monitoring program must be continued to determine whether new mitigation measures are
working.
ANNEX 6-8: ACOUSTIC MONITORING PROGRAM
Fig. 1. This figure depicts the population trajectory of the vaquita. Blue dots represent recommendations
from the International Whaling Commission (IWC) and red dots represent recommendations from
the International Committee for the Recovery of the Vaquita (CIRVA); both the IWC and CIRVA have
recommended repeatedly that gillnets be eliminated from the range of the species (see Item 3.1). The
recent increase in the rate of decline can primarily be attributed to increased illegal gillnet fishing for
totoaba.
ANNEX 6-8: ACOUSTIC MONITORING PROGRAM
Fig. 2. Gillnet exclusion zone proposed at fifth meeting of CIRVA. Blue dots are historical sightings before
the 1997 survey. Green triangles are sightings during the 1997 and 2008 ship surveys designed to
estimate abundance. Red lines delimit the proposed gillnet exclusion zone. The southeast vertex of
this zone, where both straight lines intersect, is at 30º05’42”N, 114º01’19”W. From this point a line
extends to the north towards ‘Punta Borrascosa’ (Borrascosa Tip). The other line extends to the west
until it meets the coast of Baja California, passing along the northern tip of ‘Isla el Muerto’ (El Muerto
Island, the northernmost island in Las Encantadas Archipelago). The polygon delimited by small,
black, broken lines is the Vaquita Refuge established in 2005. Larger broken lines delimit the marine
areas of the Upper Gulf of California Biosphere Reserve. The area between these lines is the buffer
zone and the area to the north of the top one is the nuclear zone. There have been no confirmed
sightings of vaquitas in the nuclear zone of the reserve or outside the proposed gillnet exclusion zone.
ANNEX 6-8: ACOUSTIC MONITORING PROGRAM
Mexico’s Porpoise Nears Extinction: a simple statement on the situation now
The vaquita, a small porpoise found only in the upper Gulf of California in Mexico, is one of the
world’s most endangered mammals. In the past three years, half of the vaquita population has
been killed in fishing nets, many of them set illegally to capture an endangered fish. Fewer than
100 vaquitas remain and the species will soon be extinct unless drastic steps are taken
immediately.
The species was discovered in 1958 and has the smallest range of any whale, dolphin or porpoise.
Vaquitas live in an area used intensively by fishermen from three small towns along the shores of
the northern Gulf of California.
Vaquitas die after becoming entangled in gillnets set for fish and shrimp. Gillnets are designed to
entangle fish but also capture other animals, including porpoises, dolphins and turtles. The
Government of Mexico has been pursuing a conservation plan for the species that includes a
refuge, where all commercial fishing (including with gillnets) is banned, and a program to
encourage fishermen to switch to fishing gear that does not threaten vaquitas. Over the past five
years, the Government invested more than $30 million (U.S.) in these efforts that slowed, but did
not stop, the decline of the species. Scientists have warned for almost twenty years that anything
short of eliminating gillnets would be insufficient to prevent the extinction of the vaquita.
A new, illegal fishery has emerged in the past few years that is an even greater menace to the
vaquita. Many vaquitas have died in nets set for totoaba, a giant fish that can reach 2 m in length
and 100 kg in weight. This endangered fish is prized for its swim bladder, which is exported to
China where it is used as an ingredient in soup and believed to have medicinal value. Thousands
of swim bladders are dried and smuggled out of Mexico, often through the United States. The
remainder of the fish is left to rot on the beach. Fishermen receive up to $8,500 for each kilogram
of totoaba swim bladder, equivalent to half a year’s income from legal fishing activities.
At a meeting in July 2014, an international recovery team advising the Government of Mexico
warned that time is rapidly running out. Unless drastic action is taken immediately, the vaquita
will be lost. Mexican authorities must eliminate the gillnet fisheries that threaten the vaquita
throughout the entire range of the species and enforce this gillnet ban. The Government must also
stop illegal fishing for totoaba. The Governments of the United States and China must help Mexico
eliminate the illegal trade in totoaba products. Unless these steps are taken immediately, the
vaquita will follow the Yangtze River dolphin into oblivion and become the second species of
whale, dolphin or porpoise driven to extinction in human history.
ANNEX 6-8: ACOUSTIC MONITORING PROGRAM
19951995 20002000 20052005 20102010 20152015
yearyear
00
200200
400400
600600
800800
10001000
populationsizepopulationsize
Technical Committee for PreservationTechnical Committee for Preservation
of Totoaba and Vaquita (TCPTV)of Totoaba and Vaquita (TCPTV)
*Banning of totoaba fishery*Banning of totoaba fishery
*Decree of Biosphere Reserve*Decree of Biosphere Reserve
*Vaquita Recovery Plan - TCPTV, US-MMC*Vaquita Recovery Plan - TCPTV, US-MMC
*Standard NOM-012-PESC-1993 to*Standard NOM-012-PESC-1993 to
protect vaquita and totoabaprotect vaquita and totoaba
Standard NOM-059-ECOL-1994Standard NOM-059-ECOL-1994
list of vulnerable and endangered specieslist of vulnerable and endangered species
Management Plan ofManagement Plan of
Biosphere ReserveBiosphere Reserve
Vaquita included in Mexico´s ProgrammeVaquita included in Mexico´s Programme
of Prioritized Species (PREP)of Prioritized Species (PREP)
Mexico´s Fisheries Chart stablishesMexico´s Fisheries Chart stablishes
requirement of null vaquita by-catchrequirement of null vaquita by-catch
Mexico's Technical Advisory SubcommitteeMexico's Technical Advisory Subcommittee
for Recovery of Vaquita and its Habitatfor Recovery of Vaquita and its Habitat
*Standard NOM-EM-032-ECOL-2003*Standard NOM-EM-032-ECOL-2003
*Biosphere Reserve 10 years update*Biosphere Reserve 10 years update
*San Felipe proclaims as*San Felipe proclaims as Home of the VaquitaHome of the Vaquita
Decree of Vaquita Protection Refuge andDecree of Vaquita Protection Refuge and
its Management Programmeits Management Programme
*PACE Vaquita published*PACE Vaquita published
and management actions startand management actions start
*Noth American Conservation Action Plan*Noth American Conservation Action Plan
Commission for Environmental CooperationCommission for Environmental Cooperation
Environmental Impact Assesment in BiosphereEnvironmental Impact Assesment in Biosphere
Reserve enforced for artisanal fishing fleetReserve enforced for artisanal fishing fleet
Presidential Advisory CommissionPresidential Advisory Commission
for Vaquita is establishedfor Vaquita is established
Standard NOM-002-PESC-2013Standard NOM-002-PESC-2013
to ban gillnets in Upper Gulf of Californiato ban gillnets in Upper Gulf of California
Figure showing the population decline of the vaquita alongside key management events

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Tiny Mexican Dolphin in Crisis in Part Through China Fish Trade

  • 1. REPORT OF THE FIFTH MEETING OF THE COMITÉ INTERNACIONAL PARA LA RECUPERACIÓN DE LA VAQUITA (CIRVA-5) 1995 2000 2005 2010 2015 year 0 200 400 600 800 1000 populationsize
  • 2. ANNEX 6-8: ACOUSTIC MONITORING PROGRAM Executive Summary of CIRVA-5 THE VAQUITA IS IN IMMINENT DANGER OF EXTINCTION The fifth meeting of the Comité Internacional para la Recuperación de la Vaquita (CIRVA) was held at the Hotel Coral y Marina in Ensenada, BC from July 8 – 10, 2014. At its last meeting in 2012, CIRVA estimated about 200 vaquitas remaining. Since then, about half of them are thought to have been killed in gillnets, leaving fewer than 100 individuals now. The vaquita is in imminent danger of extinction. EMERGENCY REGULATIONS ARE REQUIRED Despite all efforts made to date, the most recent data show the vaquita population to be declining at 18.5% per year (Fig. 1). The best estimate of current abundance is 97 vaquitas of which fewer than 25 are likely to be reproductively mature females. The vaquita will be extinct, possibly by 2018, if fishery by-catch is not eliminated immediately. Therefore, CIRVA strongly recommends that the Government of Mexico enact emergency regulations establishing a gillnet exclusion zone (Fig. 2) covering the full range of the vaquita - not simply the existing Refuge - starting in September 2014. FULL ENFORCEMENT IS CRITICAL Past at-sea enforcement efforts have failed and illegal fishing has increased in recent years throughout the range of the vaquita, especially the resurgent fishery for another endangered species - the totoaba. However, it is no longer sufficient to eliminate only illegal fishing as had first been recommended as long ago as 1990 by the IWC Scientific Committee. With fewer than 100 vaquitas left, all gillnet fishing must be eliminated. To save this species from extinction, regulations must prohibit fishermen from deploying, possessing or transporting gillnets within the exclusion zone and must be accompanied by both at-sea and shore-based enforcement. CIRVA recommends that the Government of Mexico provide sufficient enforcement to ensure that gillnet fishing is eliminated within the exclusion zone. CIRVA further recommends that all available enforcement tools, both within and outside Mexico, be applied to stopping illegal fishing, especially the capture of totoabas and the trade in their products. USE OF ALTERNATIVE GEAR CIRVA commends the work undertaken to date on developing alternative fishing gear to gillnets but it is concerned at the slow progress of implementing the transition despite existing legislation. It recommends increased efforts to introduce alternatives to gillnet fishing in the communities that will be affected by enforcement of the exclusion zone. CONTINUED MONITORING IS ESSENTIAL Finally, CIRVA commends the excellent vaquita monitoring program and associated research. The monitoring program must be continued to determine whether new mitigation measures are working.
  • 3. ANNEX 6-8: ACOUSTIC MONITORING PROGRAM Fig. 1. This figure depicts the population trajectory of the vaquita. Blue dots represent recommendations from the International Whaling Commission (IWC) and red dots represent recommendations from the International Committee for the Recovery of the Vaquita (CIRVA); both the IWC and CIRVA have recommended repeatedly that gillnets be eliminated from the range of the species (see Item 3.1). The recent increase in the rate of decline can primarily be attributed to increased illegal gillnet fishing for totoaba.
  • 4. ANNEX 6-8: ACOUSTIC MONITORING PROGRAM Fig. 2. Gillnet exclusion zone proposed at fifth meeting of CIRVA. Blue dots are historical sightings before the 1997 survey. Green triangles are sightings during the 1997 and 2008 ship surveys designed to estimate abundance. Red lines delimit the proposed gillnet exclusion zone. The southeast vertex of this zone, where both straight lines intersect, is at 30º05’42”N, 114º01’19”W. From this point a line extends to the north towards ‘Punta Borrascosa’ (Borrascosa Tip). The other line extends to the west until it meets the coast of Baja California, passing along the northern tip of ‘Isla el Muerto’ (El Muerto Island, the northernmost island in Las Encantadas Archipelago). The polygon delimited by small, black, broken lines is the Vaquita Refuge established in 2005. Larger broken lines delimit the marine areas of the Upper Gulf of California Biosphere Reserve. The area between these lines is the buffer zone and the area to the north of the top one is the nuclear zone. There have been no confirmed sightings of vaquitas in the nuclear zone of the reserve or outside the proposed gillnet exclusion zone.
  • 5. ANNEX 6-8: ACOUSTIC MONITORING PROGRAM Mexico’s Porpoise Nears Extinction: a simple statement on the situation now The vaquita, a small porpoise found only in the upper Gulf of California in Mexico, is one of the world’s most endangered mammals. In the past three years, half of the vaquita population has been killed in fishing nets, many of them set illegally to capture an endangered fish. Fewer than 100 vaquitas remain and the species will soon be extinct unless drastic steps are taken immediately. The species was discovered in 1958 and has the smallest range of any whale, dolphin or porpoise. Vaquitas live in an area used intensively by fishermen from three small towns along the shores of the northern Gulf of California. Vaquitas die after becoming entangled in gillnets set for fish and shrimp. Gillnets are designed to entangle fish but also capture other animals, including porpoises, dolphins and turtles. The Government of Mexico has been pursuing a conservation plan for the species that includes a refuge, where all commercial fishing (including with gillnets) is banned, and a program to encourage fishermen to switch to fishing gear that does not threaten vaquitas. Over the past five years, the Government invested more than $30 million (U.S.) in these efforts that slowed, but did not stop, the decline of the species. Scientists have warned for almost twenty years that anything short of eliminating gillnets would be insufficient to prevent the extinction of the vaquita. A new, illegal fishery has emerged in the past few years that is an even greater menace to the vaquita. Many vaquitas have died in nets set for totoaba, a giant fish that can reach 2 m in length and 100 kg in weight. This endangered fish is prized for its swim bladder, which is exported to China where it is used as an ingredient in soup and believed to have medicinal value. Thousands of swim bladders are dried and smuggled out of Mexico, often through the United States. The remainder of the fish is left to rot on the beach. Fishermen receive up to $8,500 for each kilogram of totoaba swim bladder, equivalent to half a year’s income from legal fishing activities. At a meeting in July 2014, an international recovery team advising the Government of Mexico warned that time is rapidly running out. Unless drastic action is taken immediately, the vaquita will be lost. Mexican authorities must eliminate the gillnet fisheries that threaten the vaquita throughout the entire range of the species and enforce this gillnet ban. The Government must also stop illegal fishing for totoaba. The Governments of the United States and China must help Mexico eliminate the illegal trade in totoaba products. Unless these steps are taken immediately, the vaquita will follow the Yangtze River dolphin into oblivion and become the second species of whale, dolphin or porpoise driven to extinction in human history.
  • 6. ANNEX 6-8: ACOUSTIC MONITORING PROGRAM 19951995 20002000 20052005 20102010 20152015 yearyear 00 200200 400400 600600 800800 10001000 populationsizepopulationsize Technical Committee for PreservationTechnical Committee for Preservation of Totoaba and Vaquita (TCPTV)of Totoaba and Vaquita (TCPTV) *Banning of totoaba fishery*Banning of totoaba fishery *Decree of Biosphere Reserve*Decree of Biosphere Reserve *Vaquita Recovery Plan - TCPTV, US-MMC*Vaquita Recovery Plan - TCPTV, US-MMC *Standard NOM-012-PESC-1993 to*Standard NOM-012-PESC-1993 to protect vaquita and totoabaprotect vaquita and totoaba Standard NOM-059-ECOL-1994Standard NOM-059-ECOL-1994 list of vulnerable and endangered specieslist of vulnerable and endangered species Management Plan ofManagement Plan of Biosphere ReserveBiosphere Reserve Vaquita included in Mexico´s ProgrammeVaquita included in Mexico´s Programme of Prioritized Species (PREP)of Prioritized Species (PREP) Mexico´s Fisheries Chart stablishesMexico´s Fisheries Chart stablishes requirement of null vaquita by-catchrequirement of null vaquita by-catch Mexico's Technical Advisory SubcommitteeMexico's Technical Advisory Subcommittee for Recovery of Vaquita and its Habitatfor Recovery of Vaquita and its Habitat *Standard NOM-EM-032-ECOL-2003*Standard NOM-EM-032-ECOL-2003 *Biosphere Reserve 10 years update*Biosphere Reserve 10 years update *San Felipe proclaims as*San Felipe proclaims as Home of the VaquitaHome of the Vaquita Decree of Vaquita Protection Refuge andDecree of Vaquita Protection Refuge and its Management Programmeits Management Programme *PACE Vaquita published*PACE Vaquita published and management actions startand management actions start *Noth American Conservation Action Plan*Noth American Conservation Action Plan Commission for Environmental CooperationCommission for Environmental Cooperation Environmental Impact Assesment in BiosphereEnvironmental Impact Assesment in Biosphere Reserve enforced for artisanal fishing fleetReserve enforced for artisanal fishing fleet Presidential Advisory CommissionPresidential Advisory Commission for Vaquita is establishedfor Vaquita is established Standard NOM-002-PESC-2013Standard NOM-002-PESC-2013 to ban gillnets in Upper Gulf of Californiato ban gillnets in Upper Gulf of California Figure showing the population decline of the vaquita alongside key management events