Fish

Fish

Azụ bụ anụmanụ na-ebi na ime mmiri, craniate, nke na-ebu mkpịsị aka na-enweghị aka na mkpịsị ụkwụ. Nkọwa a gụnyere hagfish dị ndụ, lampreys, na cartilaginous na ọkpụkpụ azụ yana ụdị dị iche iche na-adịghịzi adị. Ihe dị ka 95% nke ụdị azụ dị ndụ bụ azụ ray-finned, nke sitere na klas Actinopterygii, na ihe dị ka 99% nke ndị ahụ bụ teleosts.

Ihe ndị mbụ a ga-ekewa dị ka azụ bụ chordates dị nro nke pụtara na mbụ n'oge Cambrian. Ọ bụ ezie na ha enweghị ezigbo ọkpụkpụ azụ, ha nwere notochords nke nyere ha ohere ịdị nkọ karịa ndị ibe ha na-enweghị azụ. Azụ ga-anọgide na-agbanwe site n'oge Paleozoic, na-agbasa n'ụdị dịgasị iche iche. Ọtụtụ azụ nke Paleozoic mepụtara ihe agha mpụga nke chebere ha pụọ na ndị na-eri ibe ha. Azụ mbụ nwere agbà pụtara na oge Silurian, mgbe nke ahụ gasịrị ọtụtụ (dị ka sharks) ghọrọ anụ ndị na-eri anụ na oké osimiri kama ịbụ naanị anụ oriri nke arthropods.

Ọtụtụ azụ bụ ectothermic ("ọbara oyi"), na-enye ohere ka okpomọkụ ahụ ha dịgasị iche ka okpompe gburugburu ebe obibi na-agbanwe, ọ bụ ezie na ụfọdụ n'ime nnukwu ndị na-egwu mmiri dị ka shark ọcha na tuna nwere ike ijide okpomọkụ dị elu.[1][2] Azụ nwere ike ikwurịta okwu n'ụzọ ụda, ọtụtụ mgbe n'ihe gbasara nri, ime ihe ike ma ọ bụ mbedo.[3]

Azụ dị ukwuu n'ọtụtụ mmiri. Enwere ike ịchọta ha n'ihe fọrọ nke nta ka ọ bụrụ gburugburu mmiri niile, site na iyi ugwu dị elu (dịka, char na gudgeon) ruo na abyssal na ọbụna okwu omimi nke oké osimiri ndị dị omimi (dịka, cusk-eels na snailfish), ọ bụ ezie na ọ dịghị ụdị ọ bụla edepụtala na ya. kacha omimi 25% nke oke osimiri.[1] Na ụdị 34,300 akọwara, azụ na-egosipụta ụdị dị iche iche karịa otu ọ bụla ọzọ nke vertebrates.i.[4].[5]

Balantiocheilos melanopterus - Karlsruhe Zoo 02

Azụ bụ ihe dị mkpa maka ụmụ mmadụ n'ụwa niile, ọkachasị dịka nri. Ndị na-akụ azụ ahịa na ndị na-eri nri na-achụ nta azụ n'ime azụ̀ ọhịa ma ọ bụ na-akọ ha n'ọdọ mmiri ma ọ bụ n'ime ngịga dị n'oké osimiri (na aquaculture). Ndị na-akụ azụ̀ na-atụrụ ndụ na-ejidekwa ha, na-edobe ha dị ka anụ ụlọ, ndị na-azụ azụ na-azụ ha, na-egosikwa ha n'ime aquaria ọha. Azụ enweela ọrụ n'omenala kemgbe ọtụtụ afọ, na-eje ozi dị ka chi, akara okpukpe, yana isiokwu nke nka, akwụkwọ na ihe nkiri.

  1. ↑ Goldman (1997). "Regulation of body temperature in the white shark, Carcharodon carcharias". Journal of Comparative Physiology 167 (6): 423–429. DOI:10.1007/s003600050092. Retrieved on 12 October 2011. 
  2. ↑ Carey (February 1973). "Temperature regulation in free-swimming bluefin tuna". Comparative Biochemistry and Physiology A 44 (2): 375–392. DOI:10.1016/0300-9629(73)90490-8. PMID 4145757. 
  3. ↑ Weinmann (February 2017). "Territorial vocalization in sympatric damselfish: acoustic characteristics and intruder discrimination". Bioacoustics 27 (1): 87–102. DOI:10.1080/09524622.2017.1286263. 
  4. ↑ Yancey (2014). "Marine fish may be biochemically constrained from inhabiting the deepest ocean depths". Proc Natl Acad Sci USA 111 (12): 4461–4465. DOI:10.1073/pnas.1322003111. PMID 24591588. 
  5. ↑ FishBase Search. FishBase (March 2020). Archived from the original on 3 March 2020. Retrieved on 19 March 2020.

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