What is Scombridae?
{{Automatic taxobox | name = Scombridae | image = Gelbflossen-thunfisch.jpg | image_caption = [[Yellowfin tuna]], ''Thunnus albacares'' | taxon =Scombridae | authority= [[Constantine Samuel Rafinesque|Rafinesque]], 1815 | subdivision_ranks = Subfamilies | subdivision = [[Gasterochismatinae]]<br /> [[Scombrinae]] }} '''Scombridae''' is a [[family (biology)|family]] of [[fish]]. It includes [[mackerel]], [[tuna]] and [[bonito]]. The family includes many of the most important and well known fish that people eat. The family has 51 [[species]] in 15 [[Genus|genera]] and two [[Biological classification|subfamilies]]. The subfamily [[Scombrinae]] contains all the fish in the family except the [[butterfly kingfish]]. It is the only member of the subfamily [[Gasterochismatinae]].<ref name=Orrell2006>{{cite journal |last1=Orrell |first1=T.M. |last2=Collette |first2=B.B |last3=Johnson |first3=G.D. |title=Molecular data support separate Scombroid and Xiphioid Clades |journal=Bulletin of Marine Science |year=2006 |volume=79 |issue=3 |pages=505–519 |url=http://www.ingentaconnect.com/search/download?pub=infobike%3a%2f%2fumrsmas%2fbullmar%2f2006%2f00000079%2f00000003%2fart00007&mimetype=application%2fpdf |access-date=28 October 2012 |format=PDF }}{{dead link|date=May 2018 |bot=InternetArchiveBot |fix-attempted=yes }}</ref> Scombrids have two [[dorsal fin]]s and many [[Fish anatomy|finlet]]s behind the rear dorsal fin and [[anal fin]]. The [[caudal fin]] is divided and rigid. It has a thin, ridged base. The lengths of the fish in this family vary. The [[island mackerel]] is the smallest at {{convert|20|cm|abbr=on}}. The largest recorded length is {{convert|4.58|m|abbr=on}} for an [[Atlantic bluefin tuna]]. Scombrids are usually [[Predation|predators]]. They are found in [[Tropics|tropical]] and [[Temperate climate|temperate waters]]. The fish can move very quickly. Some members of the family are partially [[endothermy|endothermic]] (warm-blooded). This helps them to maintain high speed and activity. Other [[Adaptation|adaptati