watchman goby and pistol shrimp? | Reef Sanctuary
Often pairs of gobies or pistol shrimps will inhabit the same burrow. . Cryptocentrus species include the Yellow watchman goby (C. cinctus,) a the Tiger pistol shrimp (A. bellulus) is sometimes offered and makes a good. I keep reading about the relationship that a Goby and a shrimp can have. . method is a Yellow Watchman Goby and a Tiger Pistol Shrimp. We think this fascinating relationship is one of the most interesting to observe in a Neither the yellow watchman goby nor the shrimp will pose a risk to any.
Pistol shrimps use a specially adapted claw to fire a pulse of water at their prey; the water shoots out of the claw at around 62 miles km per hour. In its wake, the water leaves a tiny bubble, and the sound is generated as this bubble collapses.
The whole process lasts less than a millisecond. Using high-speed cameras to film pistol shrimps in action, scientists observed that a flash of light is also emitted as the tiny bubble in the wake of the pulse of water collapses. This is weird enough in itself, but what it indicates is that the tiny collapsing bubble reaches a temperature of almost oF almost oC —not far from the temperature of the surface of the sun.
Pistol Shrimp and Gobbies: Perfect Partners
This is probably the highest temperature that can be achieved by any living organism. Perfect Partners The partnership between pistol shrimps and gobies is a good example of commensalism, where both parties in the relationship benefit.
The goby benefits from the shrimp's digging and construction skills, having access to a well-built burrow. Pistol shrimps have poor eyesight, and they use gobies as an early warning system to detect predators. Gobies tend to hover just outside the shared burrow, catching passing zooplankton or small benthic invertebrates.
In many cases the shrimps maintain contact with the gobies by using their long antennae, and the gobies signal to the shrimps using specific fin flicks. Some species of goby also appear to feed their shrimps, spitting food into the burrow, and even without such deliberate actions it's possible that the shrimps may feed on fragments of food that the gobies drop.
Meet the Gun-Slinging Shrimps While many species of pistol shrimps are found in a wide variety of habitats, only a few are commonly kept in aquariums. These are species of the genus Alpheus. It has a white body with complex brown or reddish-brown markings. Some individuals have purple markings on the legs.
Both associate well with many different goby species. Another very attractive, but less often imported, species is the golden pistol shrimp often referred to as A.
One other Alpheus pistol shrimp deserves a mention, A. There are other Alpheus species, and other pistol shrimps, that find their way into aquarium stores, but they are often of unknown species.
And Their Goby Guests Several genera of gobies associate with pistol shrimps. They can be and usually are kept without shrimps, and most are good aquarium fishes in their own right. They are generally hardy and easy to feed, but many even the robust-looking Cryptocentrus gobies can be quite shy, and they are prone to jumping from open aquariums or even through gaps in aquarium covers.
They often seem to be both bolder and less prone to jumping when kept with shrimps—perhaps having an expertly constructed bolt-hole close at hand makes them more confident. To overcome this, make sure that some food drifts past their hiding place e. The most common aquarium imports are species of Amblyeleotris, Cryptocentrus, and Stonogobiops, although other species are sometimes offered for sale. There are 38 species of Amblyeleotris, which in the wild associate with a variety of Alpheus shrimps.
Many of them look quite similar: There are some more distinctive species in this genus, notably Randall's shrimp goby A. Also distinctive, if seldom seen in aquariums, is the giant shrimp goby A.
Four species are seen relatively frequently in the aquarium trade: Stonogobiops species usually associate with Alpheus shrimps, particularly A. Cryptocentrus species have a more robust look than most other shrimp gobies, with frog-like heads and big mouths.
They tend to be more aggressive towards related species, and in the case of the larger species even towards other tankmates, than other shrimp gobies. Not many of the 34 species find their way into the aquarium trade with any frequency.
The most popular species is the yellow watchman goby C. It grows to around 6 inches 15 cm and is grayish but with bright pink spots and blotches as well as smaller neon-blue spots. Numerous other Cryptocentrus species are occasionally offered for sale, and while relatively little is known about their care, they can probably be expected to behave in a similar way to their more familiar congeners.
Pistol Shrimps and Gobies: Perfect Partners (Full Article)
In the wild, Cryptocentrus associate with a variety of Alpheus shrimps. Creating a Home for Gobies and Shrimps Shrimp Considerations When keeping pistol shrimps and gobies, the main area of concern is what the shrimp will do to the aquarium.
Pistol shrimps have one preoccupation: This in itself makes them very interesting and entertaining aquarium inhabitants, even without gobies, but it does need to be taken into consideration when setting up the tank.
- watchman goby and pistol shrimp?
The first requirement is to make sure that any rocks are securely positioned on the base of the tank—neither sitting on top of the sand or gravel substrate nor leaning on it. Pistol shrimps can easily undermine rocks when digging, leading to potentially tank-breaking landslides.
A deeper bed is best, but about 3 inches 8 cm will do. Both of these traits, without help, can lead these organisms to being an easy prey. When combined together, they almost complete one another: This goby in opposite to the shrimp can see and the shrimp are wonderful burrowers. It is because of these traits that these two creatures have adapted to living together. Looking at the relationship, the shrimp burrows out a home for the goby, while the goby watches and looks out for the shrimp and itself.
During the day, the goby keeps watch outside of the home and will protect the shrimp if it wonders out for a meal.
The Symbiotic Relationship Between Gobies And Pistol Shrimp
At night, both the shrimp and the goby sleep together peacefully in the house. When the shrimp emerges from the burrowed home, they do not wonder far. They try to stay around the hole leading down to their home.
The shrimp uses their antennas to make sure they do not stray far from the goby. The goby keeps watch for both of them. If the goby senses danger, it will flicker its tail. The shrimp will receive the alert and will either retreat back into the home or stay still.
If danger is bad enough, the goby will dive head first into the burrow, but when this happens, the goby always follows the shrimp in. If the shrimp strays too far from the home, the goby will stay with it and will lead the blind shrimp back. It has been suggested that the goby is attracted to the sight of the blind shrimp while the shrimp is chemically attracted to the goby.
This means if the shrimp senses any chemicals that are related to the said goby, they will make their way to them. With the goby, if the goby sees a blind shrimp or their burrow, they will swim their way to them. Either way, they will find each other and will set up their mutualistic relationship.
The benefits of the shrimp are that they receive protection from any harm and will be granted a guide through the scary seawaters. In this, they receive shelter. Also, the tiger pistol shrimp is known to share its food with the goby.
The goby in return cannot burrow a hole properly. Without the shrimp, they would have to find alternative methods of a home.