Our Julimes book is out!

Free as a downloadable PDF at http://www.evanwcarson.com/wp-content/uploads/2014/08/Dela-Maza-Benignos-et-al-2014-Julimes-Book.pdf

If you would like a copy of the high resolution version, please contact me at evan.carson_at_gmail.com

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4 Responses to Our Julimes book is out!

  1. Michael Schneider says:

    Hello Evan, thanks for the really interesting book! The current knowledge of the degree of threat will greatly help us to manage our conservation breeding in Europe (from many Cyprinodon we are missing current information…).

    Do you have information on water chemistry in the habitat of C. julimes, also of C. fontinalis?

    Best wishes

  2. evanwcarson says:

    I’m glad you like the book! Thanks for your interest in conservation of pupfishes. We are very excited about the work we are doing in Julimes and elsewhere to protect these endangered fishes and their habitats. Exploitation of water resources is the primary threat to desert springs and their biotas. For species such as C. julimes, we have a good management program in place, but there are nonetheless concerns about the future of this species. These concerns include water development but also projected changes in the region’s climate. For C. fontinalis we have created a natural refuge because the remaining native site is highly vulnerable to spring failure.

    As with almost all pupfishes, C. fontinalis clearly is pretty adaptable to different and changing water chemistries. We have no information about physicochemistry of the original springs other than Ojo Solo. The other springs dried long before measurements were obtained, at least as far as is known in the literature. Ojo Solo is fairly soft water (0.5 uS but the refuge site is around 3.0 uS). The refuge site has much harder but otherwise very similar water physicochemistry- temperature, pH, etc. I plan to post more detailed information in the next week or so when I update the Chihuahua and Carbonera pupfish pages. Stay tuned for more details, they will be available soon.

    I am really quite interested in learning more about the conservation breeding programs in Europe. I understand there is a captive population (populations?) of the now extinct in the wild Ojo del Apache population, which represented one extreme along the morphological gradient of C. fontinalis. I am glad to know these are maintained in captivity. Perhaps one day a stock can be reintroduced to the wild.

  3. Michael Schneider says:

    thank you for your quick and detailed response! In more details, I am very excited about it.

    “0.5 uS but the refuge site is around 3.0 uS” this means 500μS/cm an 3000μS/cm?

    In Europe we have the following populations of C. fontinalis “Ojo del Apache” and “Ojo Solo Rancho Nuevo”.
    Maybe we should send you samples of both populations? Determine whether they are “clean” and have been assigned correctly…
    It would be really great if they could be maybe once reintroduced. This would be very important to the argument for the preservation of species. The critics in Europe often use as a counter-argument that this would not be possible.

    In September, some private breeders have a meeting with people from the Zoo Vienna and London and other scientists. The management and coordination of conservation of fish should be improved. Do you have any interest in a contact?

    If you’re interested, I can send you our Cyprinodon stocklist.

    • evanwcarson says:

      Yes, that was a typo on the specific conductance. The numbers you mentioned are correct.

      I definitely would like to know more about what is going on with conservation programs in Europe. Feel free to email me.


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