Otú ibi ndụ salmon

Salmon bụ naanị ezinụlọ na suborder Salmoniformes. N'etiti ha bụ ndị ma freshwater na-ekwurịta okwu echiche. Ndị a kasị nkịtị na-: salmon, chum salmon, pink salmon, coho, sockeye, Chinook salmon, whitefish, aja aja trout, grayling, Cisco, miri-iyi trout, salmon na flax. Ọtụtụ n'ime ndị a azụ a na-akpọ a mkpokọta aha: trout na salmon.

mbido

Salmon azụ pụtara banyere 145 nde afọ gara aga. Structure na ụdị, ha yiri nnọọ Clupeiformes, na ọbụna ikpokọta ha na ụfọdụ classifications. Ma salmon nwere ike mfe oké a ọma-mmasị akara na ogwe n'akụkụ. Nkewa nke ezinụlọ nke oge a umu mere 62-25 nde afọ gara aga.

pụrụ iche atụmatụ

Fish nke salmon ezinụlọ nwere ike a ahu ogologo si a ole na ole sentimita (e.g., whitefish) na abụọ mita, na ha ibu nwere ike ịbụ ruo iri asaa kilogram (trout, salmon, Chinook salmon).

Onye zuru ndekọ maka size of a trout. Nke a azụ nke salmon ezinụlọ nwere ike ibi karịa afọ iri ise, nwere a ibu nke otu narị kilogram, a ogologo karịa abụọ na ọkara mita. Isi - ogologo ma dị warara, gburugburu akpịrịkpa kpuchie.

All salmon nwere otu dorsal nku azu na otu abụba, onye n'azu ya.

amụba

Ndu ndimmadu na ụfọdụ ụdị nwere ike iru arọ iri na ise.

Ha nwere ike na mụta nwa na ọhụrụ mmiri. Otú ọ dị, ụfọdụ ụdị nke na-adịgide adịgide nke obibi n'ime ọdọ mmiri, ma ọtụtụ n'ime ha adahade spawn na saltwater n'ime ọhụrụ mmiri ozu. Ọtụtụ mgbe ha na-aga azụ n'otu ebe ebe a mụrụ ha. Ọ bụ ka na-amaghị kpọmkwem otú ha na-ahụ ala ha osimiri. Ikekwe, n'ihi na ihe ndị dị n'eluigwe na-egbuke egbuke ìgwè kpakpando, ma ọ bụ uto nke mmiri na ndị kasị mma atụmatụ nke ya mejupụtara.

N'oge na-akpata salmon na-agbanwe ya na udi ma na agba (tinye "agbamakwụkwọ attire").

akpata

Dị ka ekwuola, salmon amụba pụtara nanị na ọhụrụ mmiri - na mmiri iyi, osimiri ma ọ bụ ọdọ mmiri. Nke a bụ n'ihi na eziokwu na ndị nna nna ha ndị freshwater, na na ụfọdụ ụmụ ha ghọrọ usoro anadromous azu - na nke a bụ Atlantic na Pacific salmon.

Kasị umu spawn naanị otu ugboro ná ndụ, na mgbe ahụ na-anwụ anwụ. Ọ bụ ihe na-ahụkarị maka Pacific salmon, ma Atlantic nwere ike spawn ruo ugboro anọ.

Tupu usoro a salmon budata ịgbanwe ma externally na internally. Mkpuchi nke silver aghọ red-nwa, ụmụ nwoke mgbe ụfọdụ nwere ike na-egosi mkpumkpu azụ, ezé ibu ibu. Ma fọrọ nke nta niile esịtidem akụkụ ndị rụrụ arụ, na anụ na-aghọ obere agbanwe na ya mere obere uru.

ebe obibi

Ihu ọma, salmon na-ebi na Northern Hemisphere. Ha na-kasị dị n'ebe ugwu Asia, Europe, North America nakwa dị ka ugwu nke North Africa. Na na Southern Hemisphere, na ha eke ebe obibi bụ ezinụlọ na-efu, ma na n'ebe ụfọdụ ha artificially acclimated na bred.

ahia

Anụ ha nwere a pụrụ iche uto na dị nnọọ ọgaranya nri, ya mere, na ụdị nile nke salmon bụ lekwasịrị umu. Ha na-enye a catch nke gburugburu atọ percent nke niile amịpụtara mmiri na azu.