Mass. State record porbeagle 482-1/2
lbs. Caught by Jamie and Matt Grimes
on Sept. 5, 2009
This record was broken in 2011
by a 495 lb porbeagle.
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Salmon shark, Lamna ditropis
Porbeagle, Lamna nasus
Max. Size: 10 foot fork length, 750 lbs. Water temp 32 -64 degrees
The temperature range of 40-50 degrees ideal for porbeagles.
IGFA record - 507 lbs.......Maine State record - 548 lbs
There are 2 Lamna species . Lamna
nasus, and Lamna ditropis.
In New England, and across the Atlantic
to the British Isles and Europe, and on
into the Mediterranean, we have the
Porbeagle, Lamna nasus. In the
southern hemisphere the porbeagle,
Lamna nasus is also found in the
southern areas of South America, Africa
A Canadian longliner Capt. says that
they have actually longlined porbeagles
in 32 deg. water - that is about 4 degs.
above the freezing point of saltwater.
The preferred set for a longliner
targeting porbeagles is 40- 50 deg.
The water in New England is never to
cold for a porbeagle and they are here
The female porbeagles get larger than
the males. A female can reach 600 lbs,
and a male around 450 lbs.
(Females being larger than the males is
not the case in every shark species.)
Only two sharks in the
world have the short
ridge on the upper part
of the lower tail lobe.
They are the porbeagle,
Lamna nasus and the
salmon shark, Lamna
The salmon shark differs from the
porbeagle in some external
characteristics; it lacks the white
area on the back of the dorsal, has
a shorter snout, and the salmon
shark has dark spots all over the
white underside including under the
These spots can be lacking in the
In this photo you can see the
secondary keel on the lower tail
lobe, as indicated by the arrow.
Only the porbeagle and salmon
shark have this characeristic.
Lamna ditropis the salmon shark,
is on the West Coast, Alaska, and
on over to China. We don't have
them here in New England.
It's porbeagle weather
white on back
The water is never to cold for a porbeagle in
The white patch on back of the dorsal is usually
The tiny second dorsal is directly over, or
slightly toward the tail in relation to the anal fin
Porbeagles and salmon sharks are the only two
shark species with the secondary keel on the
And yes that small porbeagle was tagged and
released by Mike Delzingo.
Porbeagles are in
New England waters
They tend to swim in
groups, unlike makos.
The range of the Porbeagle, Lamna nasus