Photos / Sounds
What
Sphyraena flavicaudaObserver
dentrockDescription
On advice from Rick at RLS, suggest Sphyraena flavicauda. I see on FoA that S flavicauda and S obtusata could be synonyms.
In any case, is this a range extension?
Recorded approx 500 of these on one block of a survey, and 30-0 on the other block. Length 20-25cm
Photos / Sounds
Observer
dentrockDescription
Check out the parasites! Anyone any thoughts on the IDs of those?
I guess not....
Photos / Sounds
What
Synchiropus papilioObserver
dentrockDescription
Eocallionymus papilio is still "accepted" in WoRMS, so what gives with Aus Fishes over-riding insistence on recording it as Synchiropus papilio, which is "unaccepted" and therefore incorrect?
Anyway, I though I had some mating behaviour happening as the two fish circled each other for several minutes, taking it in turns to throw up sand. But looking at the dorsals, I'm thinking two males and perhaps a territorial display. Any thoughts?
Another behaviour one for you Mark?
Photos / Sounds
What
Sillago ciliataObserver
dentrockDescription
Not great on whiting IDs, but think this is right
Photos / Sounds
What
Siphamia cephalotesObserver
dentrockDescription
With eggs nearly ready to hatch. One for your behaviour collection perhaps Mark?
Photos / Sounds
Observer
dentrockDescription
Male in spawning colours. Common atm. Depth 1m. Length 45mm
Photos / Sounds
What
Omobranchus anoliusObserver
dentrockDescription
Length 80mm. Depth <1m.
Male facing off against rival male
Photos / Sounds
What
Family GobiidaeObserver
dentrockDescription
Crap photo, but seems to be F lentiginosus, rather than the more abundant F exquisitus in same area.
Currambene Ck, Jervis Bay. Depth 1.5m. Length 30mm
Photos / Sounds
Observer
dentrockDescription
Not sure about this one. If it is this species, must be a fair amount of variation with prev post.
Currambene Ck, Jervis Bay
Depth 1.5m. Length 30mm
Photos / Sounds
Observer
dentrockDescription
ID based on prev IDs same location some years back.
Currambene Ck, Jervis Bay. Depth 1.5m. Length 30mm
Photos / Sounds
Observer
dentrockDescription
Can't even get this to Genus. Some similarities to Favonigobius and Bathygobius, but nothing I can see there on FoA.
Currambene Ck, Jervis Bay.
Length 30mm. Depth <1m. Same habitat as Oyster Blennies.
Photos / Sounds
What
Genus NesogobiusObserver
dentrockDescription
I photographed several spawning pairs of Nesogobius sp 1 on 7, 15 and 17 December. I could only find one pair on the 17th, so I guess that was the finish of the N sp 1 season.
Mostly they were laying eggs in small depressions in the sand.
The first pic also shows eggs attached to an empty cockle shell.
The second pic shows one of the females actively covering her eggs. Other females just deposited their eggs in the sand, without apparently trying to cover them up further.
The third pic shows eggs visible in the female's egg tube and on the sand, if you look closely.
The fourth pic shows a male fertilising the eggs.
The last pic shows one of the solitary males displaying, perhaps to warn off other males or attract a female? These guys never seemed to harass the spawning pairs.
Another behaviour one for you Mark?
Next goal is to see if can find and photograph the N pulchellus spawning. These also occur at St Leonards. At the moment, there are very few N pulchellus about, and they are tiny (<20mm).
Photos / Sounds
What
Genus NesogobiusObserver
dentrockDescription
This is a male Nesogobius sp 1 facing off against the goatfish U vlamingii.
What I couldn't show was the Nesogobius actually attacking the goatfish, and eventually driving it off. I have not seen such a small goby attacking a large fish. It reminded me of magpies and peewees driving off an eagle.
There were several spawning pairs of Nesogobius in the vicinity (see next obs) and several solitary males displaying intermittently.
One for your behaviour collection, Mark?
Photos / Sounds
What
Squatina australisObserver
dentrockDescription
Swimming on surface unable to dive. Likely caught and released by fisho. Length approx 55cm
