tuna

A tuna (also called tunny) is a saltwater fish that belongs to the tribe Thunnini, a subgrouping of the Scombridae (mackerel) family. The Thunnini comprise 15 species across five genera, the sizes of which vary greatly, ranging from the bullet tuna (max. length: 50 cm (1.6 ft), weight: 1.8 kg (4 lb)) up to the Atlantic bluefin tuna (max. length: 4.6 m (15 ft), weight: 684 kg (1,508 lb)). The Atlantic bluefin averages 2 m (6.6 ft), and is believed to live up to 50 years.
Tuna, opah, and mackerel sharks are the only species of fish that can maintain a body temperature higher than that of the surrounding water. An active and agile predator, the tuna has a sleek, streamlined body, and is among the fastest-swimming pelagic fish – the yellowfin tuna, for example, is capable of speeds of up to 75 km/h (47 mph). However, greatly inflated speeds can be found in early scientific reports and still widely reported in the popular literature. Found in warm seas, it is extensively fished commercially, and is popular as a game fish. As a result of overfishing, some tuna species, such as the southern bluefin tuna, are threatened with extinction.

View More On Wikipedia.org
Recent contents
  1. M

    JamiiForums Tanzania Watanzania wengi tuna Reactive mindset; tunangoja tatizo litokee ndipo tuchukue hatua, tulifundishwa kutii kwa hofu kuliko kuchukua hatua mapema

    Na ndio sababu tuna visingizio na lawama nyingi !! Ukiangalia maisha yetu kwa karibu, utaona hii tabia ipo kwenye maeneo mengi. Deadline ikikaribia ndio kazi inaanza. Mtihani ukikaribia ndio kusoma kunaanza. Mgonjwa akizidi ndio tunakimbilia hospitali. Gari likiharibika kabisa ndio tunakumbuka...
    • mkata uzi
    • Thread
    • dalili hatua hofu jambo kuchukua kuchukua hatua kujiongoza kulazimishwa kuliko kutafuta lawama maji mapema moja moto muda nidhamu tatizo tuanze tuna visingizio wapo watanzania wengi
    • Replies: 0
    • Forum: Habari na Hoja mchanganyiko
  2. Samia atosha tukutane2030

    JamiiForums Tanzania Askari wa Mashirika na Taasisi za Umma tuna raha sana

    Magufuli alipoingia alileta unemployment ya kiasi kikubwa sana. Majeshi ambayo ndiyo yalikuwa yakiajiri kwa wingi kutoka JKT hayakuweza kuajiri au yaliajiri kwa number chache sana. Kuficha aibu akaipa promo SUMA JKT ili ichukue vijana wanaotemwa JKT wakalinde ofisi za umma kwa ujira kiduchu...
  3. Zack Abdul

    JamiiForums Tanzania DKT. MWIGULU: TANZANIA NA QATAR BADO TUNA FURSA NYINGI ZA KIUCHUMI

    Apigia chapuo utekelezaji wa DIRA 2050 WAZIRI MKUU Dkt. Mwigulu Nchemba amesema bado kuna fursa nyingi za ushirikiano wa kiuchumi baina ya Taifa la Qatar na Tanzania ambazo zikitumiwa vizuri zitawanufaisha raia wa nchi zote mbili. “Bado tuna fursa nyingi ambazo tunaweza tukanufaika nazo kama...
  4. Design Your Idea

    JamiiForums Tanzania Je una uhakika yale unayofunga na kuomba ndio GOD'S WILL aliyo nayo juu yako?

    “si mapenzi yangu, bali yako yatendeke.” (Luka 22:42) Setfree Psalm_23 Psalm 103 StudentTeacher Ni ipi siri ya maisha, ni kipi kipo nyuma ya ukweli wa maisha yetu. Nani ni muendeshaji wa kila hatua na kuanguka katika maisha yetu? Je kila mtu amewekewa limits na amekuwa regulated hata afanye...
  5. Kado MtotoWaMzeeWaSiku

    JamiiForums Tanzania KERO Tabora tuna kufa kwa ukosefu wa maji safi na mamlaka zipo kimya tu

    Nina kero hii kutoka hapa Tabora Mjini. Tunakaribia mwezi mmoja na nusu sasa hatuna maji safi, na hakuna sauti yoyote kutoka kwa mamlaka husika. Hawana hata samahani wala taarifa yoyote kwamba kuna mgao wa maji. Athari kwa wakazi ni pamoja na: Kukosa maji kwa matumizi ya kawaida ya nyumbani...
  6. A

    JamiiForums Tanzania KERO Wahitimu wa Diploma kutoka Chuo cha Uhasibu Arusha (IAA) tunasota kupata AVN Namba kutoka NACTVET

    Kutoka Chuo cha Uhasibu Arusha (IAA), kuna changamoto ya kupata Award Verification Number (AVN) Kwa Wanafunzi waliohitimu Diploma AVN ni Number inayotolewa na Baraza la Taifa la Elimu ya Ufundi na Mafunzo ya Ufundi Stadi (NACTVET) kwa wanafunzi waliohitimu Diploma, inayowasaidia kuomba mkopo...
    • Anonymous
    • Thread
    • arusha avn changamoto chuo diploma iaa kukosa kutoka nactvet tuna uhasibu wahitimu wahitimu wa diploma
    • Replies: 3
    • Forum: Jukwaa la Elimu (Education Forum)
  7. Hance Mtanashati

    JamiiForums Tanzania Tuna askari dhaifu sana. Kama huyu Agonza licha ya kuwa afya mgogoro ila kamtandika askari basi tunalindwa na watu dhaifu sana.

    Sioni faida ya hawa mapolisi kupiga kwata na mazoezi kila uchwao kama mtu tu wa kawaida ambaye amedhoofika vile amemtandika kisawa sawa askari. Najiuliza , je angekuwa mtu wa mazoezi / body builder huyo askari angekuwa na hali gani?
  8. Bujibuji Simba Nyamaume

    JamiiForums Tanzania Africa tuna viongozi wa ajabu sana. Malawi wamempeleka mtoto wa waziri kushiriki shindano la Miss World, badala ya mshindi halisi wa taji hilo

    Malawi sent the minister’s daughter to Miss World. Not Miss Malawi. Thandi Chisi won Miss Malawi in December. That’s the title. The trip should have been hers. It wasn’t. Organisers sent Ireen Navicha first runner-up, daughter of Gender Minister Mary Navicha. Miss World listed her as Malawi’s...
    • Bujibuji Simba Nyamaume
    • Thread
    • africa ajabu halisi kushiriki malawi miss world mshindi mtoto mtoto wa sana shindano taji tuna viongozi waziri world
    • Replies: 50
    • Forum: Jukwaa la Siasa
  9. mwehu ndama

    JamiiForums Tanzania Tunamchukulia poa lakini ukweli ametushika pabaya, tena pabaya sana

    “A cornered animal is the most dangerous.” Tangu Oktoba 29, 2025, Bi Kobe amekuwa akiishi katika hali ya mashaka na hofu kubwa. Chuki inayoongezeka miongoni mwa wananchi dhidi ya serikali yake, uwezekano wa mashitaka ya kimataifa, vikwazo na mashinikizo kutoka kila kona ya dunia—vyote...
  10. Dalton Elijah

    JamiiForums Tanzania SI KWELI Kikwete aomba Tundu Lissu kuachiwa ndani ya wiki hii maana Tanzania tuna amani.

    Kumekuwepo na machapisho yanayosambazwa kwenye mitandao ya kijamii yenye nukuu mbalimbali zinazodaiwa kuwa zimetolewa na viongozi wa nchini Tanzania.Moja ya kurasa hizo ni mjadala tv na siasa za kweli ambazo huchapisha maudhui hayo mara kwa mara
    • Dalton Elijah
    • Thread
    • amani hii kikwete kuachiwa lissu maana ndani tanzania tuna tundu tundu lissu wiki
    • Replies: 0
    • Forum: JamiiCheck
  11. Eli Cohen

    JamiiForums Tanzania Kama wewe ni muuzaji wa jerseys na una hii jersey, pliz check me

    2003/2005 edition
  12. Financial Analyst

    JamiiForums Tanzania Hivi tuna uhakika kuwa hawa watoto wa late 2000s na 2010s wanaujua ukimwi nje ndani. Tuendeleeni kuwakumbusha

    Hivi ukimwi sio tishio tena? Ni kweli maambukizi yameshuka au watu wanaishi nayo kishkaji kutokana na madawa? Mnakumbuka kipindi kile ndugu yako kila mtu amemkimbia kwake na mkimchungulia dirishani amebaki mifupa na macho meupe na amejikatia tamaa kusubiria kifo. Mnakumbuka kipindi kile kila...
  13. TheGreatest Of AllTime

    JamiiForums Tanzania Hivi kwanini bongo hakuna organized youtubers ila tuna wapiga kelele na watingisha makalio huko tik tok na insta

    Ni kwamba sisi consumers ndio tunapenda mambo ya uchawa, kelele kelele na watingisha matako au basi hatujaamua kufanya content zilizo concious na wakapata umaarufu Au basi tu watengeneza maudhui na sisi watumiaji wote akili moja 😁
  14. A

    JamiiForums Tanzania KERO Ajira Mpya 2025/2026 katika Halmashauri ya Bunda DC Kada ya Kilimo tuna mwaka hatujalipwa Fedha za Kujikimu

    Naomba utusaidie kutoa malalamiko yetu Ajira Mpya 2025/2026 katika Halmashauri ya Bunda DC Kada ya Kilimo, Mifugo na Uvuvi mpaka sasa ni mwaka hatujalipwa hela ya kujikimu.
    • Anonymous
    • Thread
    • ajira ajira mpya bunda fedha fedha za kujikimu halmashauri kada katika kilimo kujikimu mpya mwaka tuna
    • Replies: 1
    • Forum: Jukwaa la Ajira na Tenda
  15. A

    JamiiForums Tanzania DOKEZO Kilimo cha Umwagiliaji, Lumuma - Mpwapwa kina wakati mgumu, kivuko cha kusafirisha maji kimeharibika

    Kero yangu ni kwamba tunanyanyasika sana Wakulima wa kilimo cha umwagiliaji Kijiji cha Lumuma Mafene Mpwapwa, kivuko cha kusafirisha maji kwenda kumwagilia mazao kimeharibika huu ni mwaka wa nne lakini Wizara ya Kilimo hata kututembelea na kutupa msaada hakuna, sasa nashindwa kuelewa nini kauli...
    • Anonymous
    • Thread
    • kijiji kilimo kilimo cha umwagiliaji kivuko kusafirisha maji mpwapwa tuna umwagiliaji wakati wakati mgumu
    • Replies: 9
    • Forum: Kilimo, Ufugaji na Uvuvi
  16. Fbn

    JamiiForums Tanzania Walishatugundua tuna tabia ya kusahau na kunyamaza ndio maana ukiona unatishwa wanakuleza neno watasahau.

    Ni kwamba mfumo wa serikali ya CCM ulishajua kuwa hawa hata tukiwafanyia lolote baya wana wasahau tu na kunyamaza. Ndio maana leo wanafanya lolote watakalo wanajua kesho mtawafanya lolote sababu mtasahau.
  17. R

    JamiiForums Tanzania Deputy Prosecutor ICC: Tuna ushahidi wa mauaji ya Kimbari Sudan yaliyofanywa na RSF

    Ushahidi umekamilika sasa kilichobaki ni namna ya kumpeleka ICC ahukumiwe. Alipoulizwa.kuwa Bashir mpaka leo hajapelekwa huko akajibu: Ni mamlaka za ndani kumkabidhi kwetu tumshughulikie. Ameitaka UN kuwa na utaratibu wa kumkabidhi mualifu kwa nguvu ICC. Sasa napata MASHAKA! Hata akipatikana...
  18. O29

    JamiiForums Tanzania Tanzania tuna police force na kwanini? Hatuna police service

    L/G Hii inatokana na Nini? Na sitaki kuamini ni Africa nzima tupo hivi ila ningependa niwasilishe hii Kwa nchi hii pendwa ya Tanzania Kwanini? Ni police force na sio police service, unakuta police anaogopwa na raia hata akihitaji ushirikiano na wananchi wanaweza wakamuhepuka Kwa kuogopa...
  19. Mkalukungone Mwamba

    JamiiForums Tanzania Mbunge Sigrada: Tanzania tuna utawala wa matamko, hatuna utawala wa sheria

    Mbunge Sigrada amesema kuwa Tanzania kwa sasa inaendeshwa kwa utawala wa matamko badala ya utawala wa sheria, akisisitiza kuwa misingi ya kisheria ndiyo inapaswa kuongoza maamuzi na utendaji wa taasisi za umma Hakunanga utawala wa sheria. Tanzania tuna utawala wa matamko. Sheria zipo ila...
  20. Gunner11

    JamiiForums Tanzania Wareno leo tuna vunja chaga

    Hakika leo ndo kipomo halisi cha kuonesha ya kuwa sisi si watu wa kawaida.... Leo afe kipa afe beki lazima goli zifungwe tu, tuwadunge midomo hawa wadharau miba. Haitakuwa kazi nyepesi ila moto atauona, Anafikiri ukubwa wa mwili ndo una reflect mijegeje? Leo muhispania kazi anayo Heshima...

Our Community

Coming Soon

Regional Communities

Coming Soon
Back
Top Bottom
Menu
Forums
New posts
Log in
Register