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Mackerel Mackerel is a common name applied to a number of different species of pelagic fish, mostly from the family Scombridae. They are found in both temperate and tropical seas, mostly living along the coast or offshore in the oceanic environment. ...
is an important
food fish Food is any substance consumed by an organism for nutritional support. Food is usually of plant, animal, or fungal origin, and contains essential nutrients, such as carbohydrates, fats, proteins, vitamins, or minerals. The substance is inge ...
that is consumed worldwide. As an
oily fish Oily fish are fish species with oil (fats) in soft tissues and in the coelomic cavity around the gut. Their fillets may contain up to 30% oil, although this figure varies both within and between species. Examples of oily fish include smal ...
, it is a rich source of
omega-3 fatty acids Omega−3 fatty acids, also called Omega-3 oils, ω−3 fatty acids or ''n''−3 fatty acids, are polyunsaturated fatty acids (PUFAs) characterized by the presence of a double bond, three atoms away from the terminal methyl group in their chem ...
. The flesh of mackerel spoils quickly, especially in the tropics, and can cause
scombroid food poisoning Scombroid food poisoning, also known as simply scombroid, is a foodborne illness that typically results from eating spoiled fish. Symptoms may include flushed skin, headache, itchiness, blurred vision, abdominal cramps, and diarrhea. Onset of sym ...
. Accordingly, it should be eaten on the day of capture, unless properly refrigerated or cured.


Preservation

Mackerel preservation is not simple. Before the 19th-century development of
canning Canning is a method of food preservation in which food is processed and sealed in an airtight container (jars like Mason jars, and steel and tin cans). Canning provides a shelf life that typically ranges from one to five years, although un ...
and the widespread availability of
refrigeration The term refrigeration refers to the process of removing heat from an enclosed space or substance for the purpose of lowering the temperature.International Dictionary of Refrigeration, http://dictionary.iifiir.org/search.phpASHRAE Terminology, ht ...
, salting and
smoking Smoking is a practice in which a substance is burned and the resulting smoke is typically breathed in to be tasted and absorbed into the bloodstream. Most commonly, the substance used is the dried leaves of the tobacco plant, which have bee ...
were the principal preservation methods available. Historically in England, this fish was not preserved, but was consumed only in its fresh form. However, spoilage was common, leading the authors of ''The Cambridge Economic History of Europe'' to remark: "There are more references to stinking mackerel in English literature than to any other fish!" In France mackerel was traditionally pickled with large amounts of salt, which allowed it to be sold widely across the country.Clapham JH, Postan MM and Rich EE (1941
''The Cambridge economic history of Europe''
CUP Archive, pp. 166–168. .
In Japan mackerel is commonly cured with salt and vinegar to make a type of
sushi is a Japanese dish of prepared , usually with some sugar and salt, accompanied by a variety of , such as seafood, often raw, and vegetables. Styles of sushi and its presentation vary widely, but the one key ingredient is "sushi rice," also ...
known as saba-zushi. Historically saba-zushi originated in
Kyoto Kyoto (; Japanese: , ''Kyōto'' ), officially , is the capital city of Kyoto Prefecture in Japan. Located in the Kansai region on the island of Honshu, Kyoto forms a part of the Keihanshin metropolitan area along with Osaka and Kobe. , the cit ...
as a solution for transporting mackerel to the inland city, which otherwise would not have made the journey from the coast still fresh. The road linking Obama bay and Kyoto is now also called "mackerel road" (saba-kaido).


Popularity

For many years mackerel was regarded as unclean in the UK and elsewhere due to folklore which suggested that the fish fed on the corpses of dead sailors. A 1976 survey of housewives in Britain undertaken by the White Fish Authority indicated a reluctance to departing from buying the traditional staples of cod, haddock or salmon. Less than 10% of the surveys 1,931 respondents had ever bought mackerel and only 3% did so regularly. As a result of this trend many UK fishmongers during the 1970s did not display or even stock mackerel.


Mercury

There is a large variation in the mercury levels found in mackerel. These levels differ markedly for different species, and even for the same species in different locations; however, the strongest positive correlation seems to be connected to the species' size (the larger species being higher on the food chain). According to the
United States Food and Drug Administration The United States Food and Drug Administration (FDA or US FDA) is a federal agency of the Department of Health and Human Services. The FDA is responsible for protecting and promoting public health through the control and supervision of food s ...
,
king mackerel The king mackerel (''Scomberomorus cavalla'') or kingfish, is a migratory species of mackerel of the western Atlantic Ocean and Gulf of Mexico. It is an important species to both the commercial and recreational fishing industries. Description Th ...
is one of four fishes, along with
swordfish Swordfish (''Xiphias gladius''), also known as broadbills in some countries, are large, highly migratory predatory fish characterized by a long, flat, pointed bill. They are a popular sport fish of the billfish category, though elusive. Swordfis ...
,
shark Sharks are a group of elasmobranch fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the head. Modern sharks are classified within the clade Selachimor ...
, and
tilefish 250px, Blue blanquillo, ''Malacanthus latovittatus'' Tilefishes are mostly small perciform marine fish comprising the family Malacanthidae. They are usually found in sandy areas, especially near coral reefs. Commercial fisheries exist for t ...
, that children and pregnant women should avoid due to high levels of
methylmercury Methylmercury (sometimes methyl mercury) is an organometallic cation with the formula . It is the simplest organomercury compound. Methylmercury is extremely toxic, and its derivatives are the major source of organic mercury for humans. It is a ...
found in these fish and the consequent risk of
mercury poisoning Mercury poisoning is a type of metal poisoning due to exposure to mercury. Symptoms depend upon the type, dose, method, and duration of exposure. They may include muscle weakness, poor coordination, numbness in the hands and feet, skin rashes ...
.


Gallery


References


Citations


Sources

* Keay JN (2001
Handling and processing mackerel
Torry advisory note 66.


External links


Mackerel nutrition facts
{{mackerel Scombridae Mackerels Oily fish Commercial fish