Käyttäjän conwaykw tunnistukset

Mimic Shiner, similar to ghost shiner. Distinguishable by the lateral line that the ghost shiner doesn't have. Fairly thick debris in the water at this location. Mimic shiner is less transparent than the ghost shiner.

Grass clingfish,one of the two more common sorts at this 'hotspot' shallow shore dive site in the past,seasonally and erratically depending on local catchment status and mean rainfall pa etc.Via scuba.Poor focus,not a good photo at all.But these little green fish of seagrass outliers have been harder to find in each warm season,both when I took this pic and later, following the wettest year on record in Southern Oz for many decades,which occurred in 2015-6,and extended in many coastal areas of SA into early 2017.Of course,much of Oz is now dry,with below average rainfall.Should be a better dive season locally come spring summer autumn than it was for past 2 years or so,which were the worst for bad inshore water clarity,nutrient excess and 'sudden freshwater dump' decimation of sea-grass meadows, and denuding of rock reef algal canopies ,that I can recall in my local SA diving lifetime. The local reefs beaches and meadows had not fully recovered from several almost as unseasonally wet weather phases within the previous 1-2 decades,which bodes ill for next generation of SA divers.And all local beaches have less sand than in anyone's living memory(excepting nearer metro Adelaide where active replenishment via truck and slurry pipes is occurring,at some considerable but necessary expense to taxpayers).

Grass clingfish,one of the two more common sorts at this 'hotspot' shallow shore dive site in the past,seasonally and erratically depending on local catchment status and mean rainfall pa etc.Via scuba.Poor focus,not a good photo at all.But these little green fish of seagrass outliers have been harder to find in each warm season,both when I took this pic and later, following the wettest year on record in Southern Oz for many decades,which occurred in 2015-6,and extended in many coastal areas of SA into early 2017.Of course,much of Oz is now dry,with below average rainfall.Should be a better dive season locally come spring summer autumn than it was for past 2 years or so,which were the worst for bad inshore water clarity,nutrient excess and 'sudden freshwater dump' decimation of sea-grass meadows, and denuding of rock reef algal canopies ,that I can recall in my local SA diving lifetime. The local reefs beaches and meadows had not fully recovered from several almost as unseasonally wet weather phases within the previous 1-2 decades,which bodes ill for next generation of SA divers.And all local beaches have less sand than in anyone's living memory(excepting nearer metro Adelaide where active replenishment via truck and slurry pipes is occurring,at some considerable but necessary expense to taxpayers).

Another of these cute greenish clingfish, with the bright reflective eyes that make me strongly suspect they are cleaner hosts although I've still no proof.But FWIW I've seen them very close to the pipefish that often co-habit in these Posidonia seagrass outlier clumps, particularly Stigmatopora genus and Histiogamphelus genus members. It gets more confusing too, because I've also long suspected that Slender Weed Whiting are part-time hosts, and they're also often found co-habiting in the same outliers of Posidonia. How would I know if the weed whiting are not merely awaiting a clean by these clingfish (even though the slender weed whiting have overt host herald features e.g. caudal fin ocelli)?
I won't know, till I get photos or video footage showing direct contact between any 2 fish species as above.
But, lately "Syngnathid Hotspot" has been so degraded, and so lacking in pipefish and grass clingfish, I'm not so keen to dive that desert:)

Redfin Shiner. These were pretty rare, we only found one in our collections. Many specimens do not actually have red fins. Found at our second site which was fairly rugged with very little bank making collection difficult.