Twin spot Gobys

[ThRoewer]

What?

Yes, from what I found on these they build a cave and lay a bunch of eggs into it. Then the male locks itself in with the eggs for a few days. After a couple of days he comes out for good and closes the cave from the outside. About 2 to 3 weeks later a single fully developed juvenile goby breaks out of the cave. It is suspected that the baby gobies feed cannibalistic on their siblings until only one is left.
The parents set up multiple breeding caves and produce about one baby fish per week.
I need see if I can find the original article somewhere.

While this reproduction method seems ineffective and slow, it is possibly one of the more effective strategies among reef associated fish.
Their initial success rate is much higher than that of clownfish and for sure better than pelagic spawners as most larva of those end up being food for someone else.
So these guys are actually quite smart in rather producing just one guaranteed baby per clutch than producing food for others without a certain success rate.

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[johnike]

Yes, from what I found on these they build a cave and lay a bunch of eggs into it. Then the male locks itself in with the eggs for a few days. After a couple of days he comes out for good and closes the cave from the outside. About 2 to 3 weeks later a single fully developed juvenile goby breaks out of the cave. It is suspected that the baby gobies feed cannibalistic on their siblings until only one is left.
The parents set up multiple breeding caves and produce about one baby fish per week.
I need see if I can find the original article somewhere.

While this reproduction method seems ineffective and slow, it is possibly one of the more effective strategies among reef associated fish.
Their initial success rate is much higher than that of clownfish and for sure better than pelagic spawners as most larva of those end up being food for someone else.
So these guys are actually quite smart in rather producing just one guaranteed baby per clutch than producing food for others without a certain success rate.

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That'd be cool, I'd love to read it. Thanks.

 

[Dkuhlmann]

WOW, I'd love to read it as well!

 

[juniorrocketdad]

I love these fish, nice pair

 

[ThRoewer]

Preliminary Observations on the Behaviour of the Gobiid Fish Signigobius biocellatus Hoese and Allen, with Particular Reference to its Burrowing Behaviour

Abstract

Preliminary observations on the behaviour of the coral reef goby Signigobius biocellatus (Hoese and Allen) have been made using scuba equipment. The paper describes observations on the curious and striking feeding and locomotory behaviours, as well as the extensive burrowing activities and reproductive biology of this fish. The characteristic movements are discussed in connection with the conspicuous false-eyes and markings on the fish. Burrowing activities and reproductive pattern are directly linked.

Zusammenfassung

Freß-, Grabe-, Fortbewegungs- und Fortpflanzungsverhalten der Meergrundel Signigobius biocellatus werden beschrieben. Der Fisch lebt in Paaren in der Korallengeröll-Zone am Riffrand. Die Augenflecke auf den Rückenflossen werden bei der typischen sprungartigen Fortbewegung gezeigt; sie dienen wohl als inner- wie zwischenartliche Signale. Das Höhlengraben gehört zum Fortpflanzungsverhalten. Der in der Höhle abgesetzte Laich wird dort die ersten 2"“3 Tage nach dem Laichen vom ♂ bewacht, das in der verschlossenen Höhle bleibt, außer wenn das ♀ sie öffnet. ♂ und ♀ säubern ab und zu das Gelege, dann wird das ♂ wieder eingeschlossen. Nach 3 Tagen verlassen die Eltern die verschlossene Höhle, in der sich die Brut fertig entwickelt. Ein Paar hütet bis zu 6 Höhlen mit verschieden alter Brut. Aus jeder kommt, wenn die Eltern sie zum letzten Mai öffnen, nur 1 Jungfisch, der einzige Ãœberlebende dieses Geleges.

 

[ThRoewer]

So, they actually produce a nest every 2 to 3 days.

 

[johnike]

You're lucky I can read German.
Thanks.

 

[pinnatus]

Preliminary Observations on the Behaviour of the Gobiid Fish Signigobius biocellatus Hoese and Allen, with Particular Reference to its Burrowing Behaviour

Abstract

Preliminary observations on the behaviour of the coral reef goby Signigobius biocellatus (Hoese and Allen) have been made using scuba equipment. The paper describes observations on the curious and striking feeding and locomotory behaviours, as well as the extensive burrowing activities and reproductive biology of this fish. The characteristic movements are discussed in connection with the conspicuous false-eyes and markings on the fish. Burrowing activities and reproductive pattern are directly linked.

Zusammenfassung

Freß-, Grabe-, Fortbewegungs- und Fortpflanzungsverhalten der Meergrundel Signigobius biocellatus werden beschrieben. Der Fisch lebt in Paaren in der Korallengeröll-Zone am Riffrand. Die Augenflecke auf den Rückenflossen werden bei der typischen sprungartigen Fortbewegung gezeigt; sie dienen wohl als inner- wie zwischenartliche Signale. Das Höhlengraben gehört zum Fortpflanzungsverhalten. Der in der Höhle abgesetzte Laich wird dort die ersten 2"“3 Tage nach dem Laichen vom ♂ bewacht, das in der verschlossenen Höhle bleibt, außer wenn das ♀ sie öffnet. ♂ und ♀ säubern ab und zu das Gelege, dann wird das ♂ wieder eingeschlossen. Nach 3 Tagen verlassen die Eltern die verschlossene Höhle, in der sich die Brut fertig entwickelt. Ein Paar hütet bis zu 6 Höhlen mit verschieden alter Brut. Aus jeder kommt, wenn die Eltern sie zum letzten Mai öffnen, nur 1 Jungfisch, der einzige Ãœberlebende dieses Geleges.

Summary

Scuffing, Grabe-, locomotion and reproductive behavior of goby Signigobius biocellatus be described. The fish lives in pairs in the coral rubble zone at Riffrand. The eyespots on the dorsal fins are shown in the typical sudden movement; they serve as well as within the interspecies signals. The cave ditch belongs to reproductive behavior. The settled in the cave spawning is there guarding the first 2-3 days after spawning the ♂ that remains in the closed cavity, unless the ♀ opens. ♂ and ♀ clean now and then the eggs, then the ♂ is again included. After 3 days, the parents leave the sealed cave in which the breeding finished evolving. A pair of guards up to 6 different caves with ancient breed. From everyone comes when parents they open for the last time, only 1 juvenile, the only survivor of this scrim

 

[Breadman03]

Ah, the glory of Google translate!

Unfortunately, I don't have a Wiley subscription.

 

[ThRoewer]

This is one of the fish on my bucket list, though they probably need their own species tank with a muddy sand bottom.

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[johnike]

They get along fine with other peaceful Gobies.
Yashas, Hi Fins, Randalls, Rainfords, etc...
A nice sand bed is fine as long as the pod population is there.

I kept a pair long term years ago.