Yellowfin
tuna fresh as well as bluefin tuna has almost
similar appearance with one thing in common: they are hunted for food either as
canned or fresh tuna product. Bluefin especially is an endangered fish
worldwide and have higher value as sushi ingredient. If you catch one of these
two types of fish then you need to tell which one of the two tunes that you
have caught so you can determine whether you want to release the bluefin and
keep the yellowfin because yellowfin is more abundant. You can pay attention to
the characteristics such as the color, shape, and the size of these both of fishes.
How to tell
the different between bluefin and yellowfin tuna fresh?
Tuna is an oily fish that very popular to
be consumed after shrimp. There are several types of tuna fish that you can
found in the subtropical or tropical waters including yellowfin and bluefin
tuna being the later one as endangered fish due to over caught. Tuna contains
many nutrition that are good for human body intake such as protein, minerals,
vitamins, and fatty acids.
Yellowfin tuna fresh
meat can be produced as steak, fillet, and canned. The
yellowfin tuna often been called as light tuna has less mercury level than
Albacore tuna (white tuna) so it is very famous to be consumed and picked by
people. When you cannot tell the different between yellowfin tuna versus
bluefin tuna then you should read the information below:
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The finlets
The finlets of the fish is
the small fins that run down on the back of the tuna fish. You need to observe
this part because yellowfin tuna finlets have yellow color plus trimmed in
black, while bluefin tuna finlets are presence in steel blue color.
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Gold color
You can tell whether the
fish that you have caught is a yellowfin tuna fresh
fish by checking if there is stripe with gold color along the side of
the fish. If there is one with such criteria then it is possible that the fish
is yellowfin tuna.
-
The shape of the fish
Look at the shape of the
fish, yellowfin tuna tends to have football shape while bluefin tuna is more
like a torpedo shape. The pectoral fin length is another mark that can
differentiate the type with the yellowfin pectoral fin is usually reaches the tip
of the 2nd dorsal fin.
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The lines/ spots
Another characteristic to
distinguish both of the fish is the presence of the lines or spots. If there is
wavy lines or spots on the underside of the fish then it is a huge possible
that the one you caught is yellowfin type. In addition, yellowfin tuna fresh type fish has anal fins as well as bright
yellow dorsal and finlets. Oppositely, bluefin tuna fish are shiny silver-white
on the bottom and metallic blue on the top part.
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The weight and the measurement
Since bluefin tuna tend to
have larger size than yellowfin tuna fish, you can try to measure and weight
the fish you caught. One bluefin tuna can grow up to 1,000 lbs with 6.5 feet in
length, while yellowfin tuna fresh weight only reaches 300 lbs.
-
The location
Consider your location when
fishing as well, yellowfin tuna fish like to reside in the open sea or near
drop-offs while bluefin tends to be caught in the deep sea. In addition,
yellowfin prefers warm or tropical waters because they are a tropical species.
Bluefin is a colder fish that can be seen often in Gulf of Maine for example.
Yellowfin tuna can live up to 6 or 7 years
and they are a migratory fish often can be seen in Indian, Pacific, and
Atlantic Ocean. They love to perform large school with other tuna fishes such
as Skipjack tuna or bigeye tuna. Moreover they like to associate with the
dolphins as well. This is why when yellowfin tuna fresh or canned product sold out to the customers, some of you may find
the yellowfin tuna mixed with either skipjack or bigeye since they are not
separated during harvest. Yellowfin tuna
fresh is safer than Albacore tuna for pregnant women with moderate amount
of consumption. However it is also suggested that pregnant mother avoid eating
tuna fish for awhile due to the mercury concern.
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