identification Can anyone identify these Pilbara fish please?

[Savannah]

Are these all the same species? Spangled perch or fortescue grunters? I thought they were all spangled perch.. but then noticed one big silver one which makes me wonder if the others are actually the endangered fortescue grunters. These are from the fortescue river upper catchment and I'm not sure if the fortescue grunter is found that high up. Any help would be much appreciated!

[Drop Bear]

Nice fish. Are there 2 different species there?

[ellicat]

After a bit of Googling, I'd say it is not a Fortescue Grunter.

Maybe refer to your state museum for assistance with the ID.

[Savannah]

Thanks ellicat, great idea!

[ellicat]

No worries. If you're able to find out, I'd love to know what it turns out to be.

[Junky]

The bottom 2 look like spangled', however I have just learnt in the last 3 months or so that I need reading glasses. 

 

Top one, maybe a silver perch. 

 

Do not trust any of my above suggestions. I am only guessing. 

 

 

[kmcrosby78]

Yep, I agree the bottom 2 look like spangled perch. To me the body shape of the first one doesn't look quite right to be a silver perch (based on Google images). I wonder whether it's a larger spangled whose brown colours have 'faded' as it's got bigger/older.

[ellicat]

5 minutes ago, kmcrosby78 said:

I wonder whether it's a larger spangled whose brown colours have 'faded' as it's got bigger/older.

Nah, the spots on a spangled become even more pronounced if anything.

The bottom two are definitely spangleds.

[Junky]

11 hours ago, kmcrosby78 said:

Yep, I agree the bottom 2 look like spangled perch. To me the body shape of the first one doesn't look quite right to be a silver perch (based on Google images). I wonder whether it's a larger spangled whose brown colours have 'faded' as it's got bigger/older.

I went silver due to the lighter colours on the tips of its fins, and the possibility of that lateral line down the side (like bass), but as I said, my eyesight is fading with age and I am still living in denial and have not got myself glasses. 

It could be a shark for all I know .