Qhov txawv ntawm Marlin thiab Sailfish thiab Swordfish

2024 Tus sau: Alex Aldridge | [email protected]. Kawg hloov kho: 2024-01-17 23:34

Marlin vs Sailfish vs Swordfish

Marlin, swordfish, thiab sailfish yog cov ntses loj nrog cov nqi ntev uas zoo ib yam. Lawv cov yam ntxwv zoo nrog rab ntaj zoo li snout thiab lub cev loj ua rau lawv tshwj xeeb ntawm txhua tus tsiaj hauv hiav txwv. Yog li ntawd, lawv yog cov npe hu ua Billfish. Txhua hom ntses ntses tau piav qhia raws li Kev Txiav Txim: Perciformes, tab sis tsab xov xwm no npaj siab los tham txog cov yam ntxwv nthuav dav uas tseem ceeb rau kev sib txawv ntawm lawv.

Sailfish

Sailfish yog ob hom piav qhia ntawm Genus: Istiophorus (Atlantic sailfish thiab Indo-Pacific sailfish). Qhov tseeb tias muaj ob hom ntawm sailfish tau ua raws li cov kev soj ntsuam ib txwm muaj, tab sis cov lus piav qhia tsis ntev los no raws li DNA thiab lwm yam kev tshawb fawb tau piav qhia txog ob qho tib si hauv Indo-Pacific sailfish (I. platypterus). Sailfish loj hlob txog 120 - 150 centimeters nyob rau hauv thawj xyoo thiab ncav cuag qhov siab tshaj plaws ntawm ob xyoos, los ntawm lub sij hawm no lawv yog matured. Txawm li cas los xij, lawv qhov ntev tsis pub tshaj 3 meters, thiab qhov siab tshaj plaws lub cev hnyav yog 90 kilograms. Sailfish yog cov neeg ua luam dej agile (110 km / h), thiab muaj peev xwm ua luam dej 100 meters hauv li 4.8 vib nas this. Lawv dorsal fin, sail, yog khaws cia thaum ua luam dej, tab sis lawv tsa nws thaum zoo siab. Ib qho ntawm lawv lub peev xwm zoo tshaj plaws yog hloov lawv cov xim yuav luag tam sim. Sailfish tuaj yeem nyob tsuas yog plaub xyoos hauv qus, tab sis lawv cov stint luv luv yog qhov nthuav heev.

Marlins yog ib pawg ntawm cov ntses loj hauv hiav txwv nrog daim nqi loj zoo li hmuv. Muaj txog kaum hom marlins piav nyob rau hauv peb genera hu ua Istiophorus, Makaira, thiab Tetrapturus. Lawv zwm rau Tsev Neeg: Istiophoridae ntawm Kev Txiav Txim: Perciformes. Nyob ntawm cov hom, marlins ncav cuag qhov sib txawv ntawm lub cev qhov ntev li ntawm 5 - 6 meters ntawm qhov ntev thiab 600 - 800 kilograms ntawm qhov hnyav. Lawv cov tubular zoo li lub cev me ntsis nqaim mus rau tom qab kawg. Ntau tus ntawm lawv muaj kab txaij ntsug ntawm lawv lub cev tshwj tsis yog hauv cov marlins dub. Lawv lub dorsal fin yog coj mus rau pem hauv ntej, taw tes, thiab khiav rov qab raws ntug dorsal txog li 80% ntawm lub cev ntev. Lub pectoral fins tsis pom meej vim lawv lub cev loj.

Txawm hais tias lawv lub cev loj, marlins yog cov neeg ua luam dej tshwj xeeb nrog nrawm txog 110 km ib teev. Marlins tau txais koob hmoov nrog lub neej ntev (>25 xyoo nyob rau hauv qus), thiab lawv ncav cuag kev loj hlob ntawm kev sib deev thaum muaj hnub nyoog ob mus rau plaub xyoos.

Ntsuab ntses

Swordfish, aka Broadbill, yog hom ntses migratory loj uas muaj tus cwj pwm zoo li snout lossis daim nqi. Nws yog scientifically hu ua Xiphias gladius, belongs rau tsev neeg: Xiphiidae ntawm lub Order: Perciformes, thiab tsuas muaj ib hom ntawm swordfish nyob rau hauv lub ntiaj teb no. Swordfish feem ntau yog peb meters ntev, tab sis qee tus neeg tuaj yeem ntev tshaj li plaub meters. Qhov hnyav feem ntau yog nyob ib ncig ntawm 500 - 650 kilograms rau ib tug neeg laus, hos txiv neej yog me thiab sib dua piv rau cov poj niam. Nws tsis yog lub cev flattened tom qab tab sis puag ncig.

Cov ntses ntses no tuaj yeem ua luam dej nrawm thiab tsiv tsiv heev. Lawv dorsal fin zoo li tus shark fins, thiab pectoral fins tau txuas hauv qab lub cev. Swordfish yog ib qho ectothermic, tab sis lawv muaj ib lub network ntawm capillaries uas ua rau lub qhov muag sov thaum lub ambient kub yog tsawg li 10 ^{0 C. Yog li, lawv muaj lub zeem muag zoo dua los pab txhawb kev ua haujlwm zoo. Swordfish tuaj yeem nyob hauv ntau qhov chaw nyob los ntawm qhov chaw mus rau cov dej tob ntawm ob qho tib si huab cua thiab huab cua sov hiav txwv. Lawv qhov kev faib tawm tuaj yeem piav qhia thoob ntiaj teb raws li lawv pom hauv Indian, Pacific, thiab Atlantic dej hiav txwv. Swordfish tuaj yeem pib kev sib deev thaum lawv muaj 4 - 5 xyoos thiab nyob txog cuaj xyoos nyob rau hauv qus.}

Ntsuab ntses Sailfish Kaum ib hom muaj nyob rau hauv peb genera (Istiophorus, Makaira, thiab Tetrapturus)

Ib hom

(Xiphias gladius)

Ob hom ntawm ib genus

(Istiophorus)

Kev sib deev thaum muaj hnub nyoog 2 - 4 xyoos Kev sib deev thaum muaj hnub nyoog 4 - 5 xyoos Kev sib deev thaum muaj hnub nyoog 2 xyoos Txoj sia yog >25 xyoo qus Lub neej yog 9 xyoo nyob rau hauv qus Txoj sia nyob hauv qus yog kwv yees li 4 xyoos

Average length 5 – 6 m

Nyhav 600 - 800 kg

Average length 3 – 4 m

Nyhav 500 - 650 kg

Average length 2 – 3 m

Qhov hnyav yog kwv yees li 90 kg

Dorsal fin yog coj mus rau saum Dorsal fin yog qhia rov qab Dorsal fin yog lub nkoj thiab taw qhia nce mus nplua nuj thiab taw tes Nqe thiab taw tes nqe Nqe thiab taw tes nqe Vertical xim qauv tam sim no Tsis muaj xim qauv qauv

Vertical xim qauv tsis yog qhov tseem ceeb, tab sis lawv tuaj yeem hloov xim lub cev tam sim ntawd