Broad bar mack? fish ID please
Submitted by fishing fanatic on Mon, 2012-04-30 12:11
Hey guys there was a bit of a dispute about what type of mack the on on the left hand side is. this is from the glynn dromney spearfishing competetion where the guy (phil) in the photo and his parenter won :). they also shot a 20kg spanish, a 8kg dhuie, a biggg breaksea, a big skippy a sambo and a baldy that won them the comp.
On the day the left mack ended up being called a grey mack and was not weighed in. we know the one on the right is a shark mack. is the one on the left a broadbarred spannish mack? or any other ideas?
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hlokk
Posts: 4290
Date Joined: 04/04/08
An easy and quick way to
An easy and quick way to distinguish the 3 main large macks is by their lateral lines:
1. Spaniards have a distinctive dip in their lateral line just after their dorsal fin
2. Broad bars (aka greys) have a dip after their lateral line but it is a much more gentle curve. They also have a black bit at the start of their dorsal
3. Shark mackies can usually be determined by their colour. However, sometimes they're pretty silver so the easy way to tell them is that they are the only mackie species with a double lateral line.
So the one on the right is definitely a sharkie. The one on the left is most likely a grey, but its hard to see from the picture for the lateral line. Do you have a less compressed version of the pic? The head looks like a grey though.
fishing fanatic
Posts: 809
Date Joined: 01/05/09
i can put up the picture
i can put up the picture showing his whole bag but then thats the only other one i have. so is a grey a broadbarred?? or differnt fish?
big john
Posts: 8726
Date Joined: 20/07/06
Broadie
I reckon its a broad bar.
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kmo
Posts: 127
Date Joined: 17/01/12
Lucky
Lucky that they won anyway, broadbar and grey mackerel are the same thing!
uncle
Posts: 9355
Date Joined: 10/02/07
yep
that mouth gives it away,rather catch one of those pound for pound then the other 2 types
all aggressive fish love bigjohnsjigs
dodgy
Posts: 4563
Date Joined: 01/02/10
When is a mack not a mack?
When is a mack not a mack? When's it's a large scale tuna. Shark macks are actually a type of scad.
Does anyone know where the love of god goes, when the waves turn the minutes to hours?
hlokk
Posts: 4290
Date Joined: 04/04/08
Not quite :p. True mackerel
Not quite :p. True mackerel and tuna are both in the same family (Scombridae), but tunas arent macks and macks arent tuna. They're closely related being in the same Family. Sharkies fit under the true macks (so do slimeys). Scads are sometimes called mackerels but arent true mackerels as they are in a different family E.g. (Carangidae for the yellowtail scads we have here).
till
Posts: 9358
Date Joined: 21/02/08
Dodgy's comment is only
Dodgy's comment is only really relevant to gamefishing. Not really sure anyone else class them as large scale tuna.
Click.
Glenn Moore
Posts: 228
Date Joined: 13/02/12
Grey Mackerel
The fish on the left is a Grey Mackerel Scomberomorus semifasciatus. It is sometimes called a Broad-barred Spanish Mackerel. Interesting record from Lancelin.
You are correct with the Shark Mackerel Grammatorcynus bicarinatus. Think that Dodgy's comment about 'scad' was in reference to the Scad Mackerel Grammaotorcynus bilineatus. It is a mackerel/tuna (not a scad) and very closely related to the Shark Mackerel. It is a northern species and often referred to as Large-scaled Tuna (as till pointed out) The one in the photo is definately a Shark Mackerel though (the eye is small).
Common names can be confusing. If you are interested in why I use one name instead of any other - there is a list of Standard Common Names for fishes. I wrote about it here :-) http://museum.wa.gov.au/explore/blogs/aquatic-zoology/whats-name
Glenn Moore
Curator of Fishes
Western Australian Museum
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