What is the swordfish?

The

swordfish is a perciform fish found around the world and immediately recognizable by its large upper jaw, which resembles a sword protruding from the front of the fish. It is popular for eating and sport and fish are caught around the world along long migrations in search of prey. The state of protection of this fish is unclear, although several nations have noticed a decline in shares and closed the fishing education system and also monitored catches.

In addition to the different upper jaw, the swordfish also have the backward fins and a high front dorsal fin. Fish are generally gray blue to bronze above and pale cream on the bottom. They have simplified bodies designed for fast and efficient swimming and are also very strong. They are greedy predators and eat a wide range of other fish species throughout the world's oceans. They have few predators as adults, except for people, except for SOME types of whales.

Adult swords can reach a length of 15stop (5 metrů) a při splatnosti vážit 1 400 liber (650 kilogramů). Ženské mečény mají tendenci dosáhnout větších velikostí než muži. V mírných oblastech se tyto ryby po celý rok vytvářejí a dočasně se spárují s partnerem pro oplodnění vejců. V chladnějším podnebí dochází k tření na jaře a v létě. Vejce se vznášejí několik dní před vylíhnutím do malých larev, které často konzumují řada větších ryb. Pokud by se mohla růst, ryby dosáhnou zralosti za pět až šest let a mohou očekávat, že bude žít až do věku přibližně deseti let.

Tělo těchto ryb je husté a bílé, dobře vhodné pro grilování, pečení a restování. Maso však hromadí rtuť vysokou rychlostí. As a result, consumers are not encouraged to eat a swordfish and reduce their meat intake to prevent biologically accumulation of mercury in Air of their own tissue. Celosvětově se od 70. let 20. století, kdy byla veřejnost poprvé upozorněna na riziko rtuti, tržby a úlovky.

CONSERVATIONISTS WERE WOULD FEALS FOR THESE FISH, PRotože most of the fish are young adults and adolescents. Since the swordfish takes some time to ripen, biologists have suspected that excessive spending of juveniles can result in a weaker stock in the coming years and encourage more controls on fishing. In response, many nations have adopted fishing bans in the well -known areas of kindergarten, as well as the limits of the size and more careful monitoring of catches on board.