On June 16, 2015, Proaquatix officially released the news that they’ve successfully spawned and reared the Jackknife Fish,equetus lanceolatus(see the press release and additional images at the end of this article).
这不是一个物种；杰克刀鱼的圈养是几十年前首次完成by Forest Young (currently of Dynasty Marine) at Aqualife Research Corp., and related species have also been bred successfully. Pioneering breeders even succeeded in creating the hybrid “Hijack” Fish, a mating of the High Hat (equetus acuminatus）X折刀鱼（E. lanceolatus）。
Jackknives are among the less-commonly seen Florida fishes; typically the High Hat is readily available, but the Jackknife seems elusive. The related Spotted Drum, which we’ve lusted over more than once (#1, and#2），甚至更神话，根本没有出现任何常规可用性。
Combined with relative rarity, Jackknives and Spotted Drums seem very prone to shipping stress, making them difficult fishes to obtain (Proaquatix notes that captive-bred Jackknives have solid shipping track records – just one example of how captive-breeding can improve a fish for the aquarium hobby). With so many more diverse fishes readily available to the home aquarist, a species like the Jackknife Fish simply has fallen out of favor, becoming more of a passing curiosity and novelty. But, presented with commercial availability of this beautiful fish as a captive-bred animal, we have an opportunity to change that.
一些网站表明，折刀鱼不是“礁石安全”或“珊瑚礁兼容”，但我想知道这实际上是这样的。当我向Proaqautix的营销和销售总监Seth Pierce提出问题时，他回答。“如果Lionfish被认为是礁石安全的Jackknives 100％安全的安全。是的，如果它出现自己，他们可能会吃任何虾，当然会吃其他出现的小鱼，但他们不会打扰珊瑚和海葵或类似的无脊椎动物。”
Given that the adult size of a Jackknife Fish is only 9 in. max,. it’s unlikely that they’ll be doing any serious decimation to fish populations except for what can fit in their mouths. Would a clownfish fit? Pierce was skeptical that predation on most fish would ever be an issue.
“I doubt they would ever eat a clownfish, even the small ones for a few reasons. First, because it’ll take quite a while for the jackknife to grow large enough to eat a clownfish. Second, our jackknives have never been exposed to the type of fish as a prey item; they only know pellets. Third, they have been raised and held with clownfish; we hold them together with clownfish now, but of course they’re more similarly sized,” he notes.
Still, it has been suggested that Jackknives are also rather peaceful fish; they are not boisterous and rowdy. These captive-bred Jackknives would feel most at home with other calm tankmates who allow them to freely swim over the sandbed in search of a tasty morsel, but we suspect they’ll hold their own quite well in the typical reef fish community.
我个人很高兴看到Jackknives成为圈养的鱼类。我希望他们不会分享Ora的普通话龙Nage派的命运，而是毫不犹豫地欢迎我们的坦克进入我们的坦克。We don’t see this species often enough, and now, to have a version of the animal that is far superior to its wild counterpart, and available at the most attractive size (the young juvenile), this species stands a real solid chance at becoming a mainstream commercial offering for the trade. Let’s make that happen!
新闻发布以下：
PROAQUATIX BREEDS JACK KNIVES IN COMMERCIAL QUANTITIES
In mid-April 2015, Proaquatix collected the first spawn from a group of Jack Knives (Equetus Lanceolatus). Rearing of the larvae lasted only 2 months. Several small test orders have been sent to customers overseas. The success and numbers are great enough that, barring any unforeseen circumstances, Proaquatix should be able to fill the industry demand for Jack Knives and replace wild collection.
最初的产卵组是由王朝海军陆战队收集和交付的。以典型的朝代海洋方式，它们是美丽的健康标本。有趣的是，这些杰克刀表现出了我们以前从未见过的金色的口音。产卵组在第一次产卵前约一年。一些人工操纵用于实现/收集第一个产卵。野生育雏并不总是容易保留。花了一些时间让他们继续准备食物。此外，他们接受了两次感染的治疗（在初始适应后很少见）。
以最小的deviati幼虫很容易提高on from our normal protocol for pelagic eggs. They grew very quickly and were market size within 2 months.
Initially after metamorphosis, the post larvae/juveniles were bright gold/black. They quickly lost 80% of the gold coloration, but seem to retain a significant gold border. We’re very interested in the gold accent and we would love to understand the reason for the regional variation.
The Juveniles were also very easy to manage. They have proven to be hardy shippers and have not had any disease/infection issues in growout. Like all Proaquatix fish, Jack Knives are trained onto pellets at an early stage and will happily accept dry and frozen food.
If the demand is great enough and the market is receptive/supportive of these fish, then Proaquatix will establish several spawning groups to create year round availability. We will attempt to price these fish to compete with or beat wild Jack Knife prices as long as we can do so without losing profitability. They are available from Proaquatix today.
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