Stingray Export Ban cancellation
- Thread starter jacochoi
- Start date
rayman;2535833; said:
I have that one in PDF as well if anyone would like a copy. The maturation period seems fairly short, but the long gestation period and the relatively low amount of offspring (compared with other fishes) would lead me to believe that they would be very susceptible to over-harvesting. I wonder what the 1 year survival rate is among pups in the wild.
The cf. histrix are studied since 1996 and the catch for the aquarium trade had no impact on the population. There is some tag and release work going on to get better understanding of growing rate and migratory behavior. Too bad that these rays have no scientific name. Because of this the complete study can not released.
It is a very bad thing if the subject of your study has no scientific name. You can not publish about the biology of a Potamotrygon sp. C. At first the species has to get her name. And this is very slow in potamotrygon rays
The species could be named since 10 years, but nothing happened.
It is a very bad thing if the subject of your study has no scientific name. You can not publish about the biology of a Potamotrygon sp. C. At first the species has to get her name. And this is very slow in potamotrygon rays
The species could be named since 10 years, but nothing happened.rayman;2537947; said:The cf. histrix are studied since 1996 and the catch for the aquarium trade had no impact on the population. There is some tag and release work going on to get better understanding of growing rate and migratory behavior. Too bad that these rays have no scientific name. Because of this the complete study can not released.
It is a very bad thing if the subject of your study has no scientific name. You can not publish about the biology of a Potamotrygon sp. C. At first the species has to get her name. And this is very slow in potamotrygon rays
It is unfortunate! The potamatrygon species have so many morphs and so little research being done that identification of individual species is muddy at best. The fact that so little research has been done is also a limiting factor. I was able to find only four books on freshwater stingrays. I look forward to reading the Aqualog book of Freshwater species identification to better understand the classification of these species but I hope more people like Richard Ross will take up the cause. I wish I had been able to attend the Stingray symposium in Chicago.
Found this floating around: A letter from Ornamental Fish International to IBAMA
http://www.ornamental-fish-int.org/uploads/lv/Q3/lvQ3Xo_CL6fyMBh_kO0hLQ/Ibama-6-10-06.pdf
http://www.ornamental-fish-int.org/uploads/lv/Q3/lvQ3Xo_CL6fyMBh_kO0hLQ/Ibama-6-10-06.pdf
And found the total export quota:
BRAZILIAN STINGRAYS
AVAILABLE ONCE MORE...
IN LIMITED NUMBERS
It is now a little over 18 months since Brazil decided unilaterally to
prohibit the export of freshwater stingrays (family
Potamotrygonidae). This decision was taken despite the fact that
the CITES Animals Committee had proposed a programme of
liaison and consultation with all the South American countries
where members of this family are found, and despite the added
fact that this proposal was subsequently ratified by the CITES
Conference of the Parties that was held during 2007.
Since then, there have been ongoing discussions between
interested parties within Brazil, including government agencies,
the ornamental aquatic sector and representatives of Proyeto
Piaba, to find a workable solution that would allow Brazilian
collectors and exporters to compete with their counterparts in
neighbouring countries, from which exports are allowed. News
have been scant and hard to come by during this period, but, in
May, some details began filtering through at last...and they
represent a welcome change of mood.
While Brazilian collectors and exporters have not been given carte
blanche, they will nevertheless now be allowed to compete...to a
certain degree. The government has published catch quotas
allowing 12,800 pieces (specimens) to be shipped from Manaus
and 8,000 from Belem over a period of one year. These allowances
were supposed to be in place by June or July, meaning that, in
2008, only 50% of the quotas may be collected and exported, with
(presumably) the balance applying during the first half of 2009.
The new law will be valid until 2010, with progress being monitored
in the intervening period, and plans are already under way to
submit an industry quota request for 2009 in November or
December of this year. The release of, albeit limited, wild stocks of
freshwater stingrays for collection, means that, while Brazilian
collectors and exporters may not have achieved parity with their
competitors, they are, at least beginning to make some headway.
There is no doubt that the latest developments mark a welcome
and much-needed step in the right direction.
http://www.petnews.com.au/PetNews Website/PIN 18no3/LOW RES SINGLE PAGES/PIN 18-3 pg 17.pdf
BRAZILIAN STINGRAYS
AVAILABLE ONCE MORE...
IN LIMITED NUMBERS
It is now a little over 18 months since Brazil decided unilaterally to
prohibit the export of freshwater stingrays (family
Potamotrygonidae). This decision was taken despite the fact that
the CITES Animals Committee had proposed a programme of
liaison and consultation with all the South American countries
where members of this family are found, and despite the added
fact that this proposal was subsequently ratified by the CITES
Conference of the Parties that was held during 2007.
Since then, there have been ongoing discussions between
interested parties within Brazil, including government agencies,
the ornamental aquatic sector and representatives of Proyeto
Piaba, to find a workable solution that would allow Brazilian
collectors and exporters to compete with their counterparts in
neighbouring countries, from which exports are allowed. News
have been scant and hard to come by during this period, but, in
May, some details began filtering through at last...and they
represent a welcome change of mood.
While Brazilian collectors and exporters have not been given carte
blanche, they will nevertheless now be allowed to compete...to a
certain degree. The government has published catch quotas
allowing 12,800 pieces (specimens) to be shipped from Manaus
and 8,000 from Belem over a period of one year. These allowances
were supposed to be in place by June or July, meaning that, in
2008, only 50% of the quotas may be collected and exported, with
(presumably) the balance applying during the first half of 2009.
The new law will be valid until 2010, with progress being monitored
in the intervening period, and plans are already under way to
submit an industry quota request for 2009 in November or
December of this year. The release of, albeit limited, wild stocks of
freshwater stingrays for collection, means that, while Brazilian
collectors and exporters may not have achieved parity with their
competitors, they are, at least beginning to make some headway.
There is no doubt that the latest developments mark a welcome
and much-needed step in the right direction.
http://www.petnews.com.au/PetNews Website/PIN 18no3/LOW RES SINGLE PAGES/PIN 18-3 pg 17.pdf
