I-Sailfish: Isivinini nobukhosi olwandle

I-Sailfish ingenye yezinhlobo zasolwandle eziheha kakhulu neziwuphawu olwandle. Siqashelwa kokubili isivinini saso esingavamile kanye ne-dorsal fin yaso ehlukile emise okweseyili, lesi silwane esizingelayo sasolwandle esihlaba umxhwele sinikeza umbukwane oyingqayizivele ezindaweni zaso zemvelo, kusukela emanzini ashisayo ashisayo kuya ezindaweni ezipholile zoLwandlekazi i-Atlantic, i-Pacific kanye ne-Indian Ocean. Okulandelayo, sizohlola ngokuningiliziwe okuyinhloko izici, izindawo zokuhlala, izimilo kanye nelukuluku ngale nhlanzi ewubukhazikhazi.

Izici ezijwayelekile ze-sailfish

I-sailfish (I-Istiophorus) okomndeni I-Istiophoridae, umugqa we-taxonomic ohlanganisa nezinhlobo zezinhlanzi ezinjenge-billfish. Le nhlanzi ingafinyelela phezulu 3 amamitha ubude y isisindo esingaphezu kwamakhilogremu ayi-100, okwenza ibe enye yezinhlanzi ezinkulu ezinamathambo amakhulu. Umzimba wayo unomumo we-aerodynamic onephrofayili ye-hydrodynamic, eyivumela ukuthi ifinyelele ngesivinini kufika ku-110 km/h, ethola isicoco sokuba inhlanzi yesibili esheshayo olwandle, idlulwa kuphela i-mako shark.

Esinye sezici zayo ezigqame kakhulu iphiko layo lomhlana, eliyenza ibukeke njengoseyili futhi ingakala ngaphezu kobubanzi bomzimba wayo. Ngaphezu kwalokho, inomhlathi wangaphezulu omude, ofana noqhwaku, ewusebenzisa kokubili ukuze ihlasele inyamazane yayo futhi ithuthukise amandla e-hydrodynamic lapho ibhukuda. Okwakhe umbala uhlanganisa amathoni aluhlaza okwesibhakabhaka nesiliva, enemigqa yobude enikeza ukufihla okufanelekile ezindaweni zabo zokuhlala.

Indawo yokuhlala nokusatshalaliswa

I-Sailfish ihlala ikakhulukazi e- amanzi afudumele napholile, isabalalisa kabanzi kulo lonke elase-Atlantic, Pacific kanye nolwandle lwaseNdiya. Ngaphakathi kwalezi zifunda, ama-sailfish atholakala ezindaweni ezivulekile nasezigwini eziseduze, kuye ngemisinga yolwandle kanye nokutholakala kokudla. Lawa manzi ngokuvamile anezinga lokushisa phakathi 21ºC kanye no-28ºC, enikeza indawo ekahle yokuthuthukiswa nokukhiqizwa kwayo.

Ezifundeni ezifana ne IGulf of mexico, oLwandle lweCaribbean kanye noGwini lwase-Atlantic lwaseFlorida, le nhlanzi inobukhona obukhulu, iyisipho kubo bobabili abadobi bezemidlalo kanye nezazi zesayensi yezinto zasolwandle ezinentshisekelo yokufunda ukuziphatha okuyingqayizivele.

Ukuziphatha nokondla

I-sailfish iyisilwane esingosomathuba esisekela ekudleni kwayo izinhlanzi ezincane, njengama-sardine, ama-anchovies nama-cephalopods. Izingela yodwa noma ngamaqembu amancane, lapho ingazungeza izikole de peces futhi basebenzise “iseyili” yabo engemuva ukuze ibaqondise ezindaweni ezisengozini kakhulu. Lolu hlobo lokuzingela ngokubambisana lukhumbula ukuziphatha kwezinye izilwane ezincelisayo zasolwandle, bebonisa ukuhlakanipha okumangalisayo emasu abo.

Esinye isici esiphawulekayo sokuziphatha kwe-sailfish yikhono layo lokwenza ukufuduka kokuzala. Lokhu kufuduka kuqinisekisa kokubili ukuzala emanzini angaphezulu kanye nokuhlakazeka kwezinzalo zazo, ezizalwa njengezibungu ze-pelagic futhi ezidinga izimo ezithile zolwandle ukuze ziphile.

Ukukhiqiza kanye nomjikelezo wempilo

Umjikelezo wempilo ye-sailfish mfushane uma kuqhathaniswa nezinye izinhlobo ezinosayizi ofanayo. unayo a isikhathi sokuphila seminyaka ecishe ibe yi-4, nakuba ngezinye izikhathi ingafinyelela ku iminyaka 13 ngaphansi kwezimo ezivumayo. Ngesikhathi sokuzala, abesifazane bavame ukuba bakhulu kunabesilisa, okubenza bakwazi ukukhiqiza kuze kufike 4 million amaqanda, okuqinisekisa ukusinda kwezinhlobo zezilwane lapho kubhekwa izilwane ezizingelayo ezigabeni zokuqala.

Ubudlelwano nabantu kanye nokudoba kwezemidlalo

I-sailfish ingenye yezinhlobo ezihlonishwa kakhulu e- ukudoba kwezemidlalo ngenxa yokumelana nekhono lokubeka umbukiso ngesikhathi sokubanjwa kwayo. Nokho, lo mkhuba kumelwe wenziwe ngokuqaphela, njengoba ukudoba ngokweqile kungafaka abantu bakhona engozini. Njengamanje, isimo sayo sokulondoloza izinzile, nakuba umthelela wokudoba ngokungakhethi kanye nokushintsha kwesimo sezulu kungashintsha izindawo zakho zokuhlala zemvelo.

Enye yezindlela zendabuko zokubamba i-sailfish i-longlining, nakuba izinduku nazo zivame ukusetshenziswa kwezemidlalo. Ngenxa yokufana kwenyama yazo ne-swordfish, kwezinye izimo zidayiswa njengokungathi ziyizinhlobo ezifanayo, nakuba i-swordfish ine-flavour eyaziswa kakhulu ku-gastronomy.

I-athikili ehlobene:

Izinhlanzi zangaphambi komlando

Ilukuluku mayelana ne-sailfish

• Isivinini sokuqopha: Njengoba ikwazi ukufinyelela ku-110 km/h, i-sailfish ibhekwa njengenye yezilwane ezisheshayo olwandle.
• Okuncamelayo kwamanzi angaphezulu: Nakuba ingehlela ekujuleni okukhulu, ikhetha ukuhlala eduze nendawo engaphezulu, lapho ithola khona ukudla okuningi kakhulu.
• Ukujwayela okukhethekile: I-dorsal fin yayo inemisebenzi eminingi, kusukela ekusizeni ekushintsheni lapho eya khona kuya ekulawuleni izinga lokushisa lomzimba wayo lapho ibekwe elangeni.

I-Sailfish ayigqami kuphela ngejubane layo elimangalisayo, kodwa nekhono layo lokuzivumelanisa nezimo ezihlukahlukene nokuziphatha kwazo ngokubambisana ngesikhathi sokuzingela. Ubukhosi bayo buyenza ibe yigugu lezilwandle kanye nophawu ukuhlukahluka kwezilwandle okumele sikuvikele futhi sikuthokozele.