Blue crayfish: khaws thiab yug me nyuam, yees duab

2024 Tus sau: Priscilla Miln | [email protected]. Kawg hloov kho: 2024-02-18 01:45

Nyob hauv cov qus, xiav crayfish nyob hauv cov dej ntiav ntiav nyob hauv cov kob ntawm Cuba. Rov qab rau xyoo 1980 lawv tau coj mus rau thaj chaw ntawm peb lub xeev. Txij thaum ntawd los, lawv tau txais txiaj ntsig zoo tshaj plaws ntawm cov aquarists hauv tsev. Tsiaj txhu yog heev unpretentious thiab heev haum rau khaws cia nyob rau hauv tsev. Los ntawm kab lus no koj yuav kawm txog cov yam ntxwv tseem ceeb ntawm cov arthropods.

Zoo

Blue crayfish, cov duab uas tuaj yeem pom hauv qab no, muaj lub cev zoo li qub, muaj nyob hauv txhua tus tsiaj ntawm hom no. Qhov nruab nrab ntev ntawm tus neeg laus yog rau txog rau kaum ob centimeters, tsis suav nrog claws.

Cuban crayfish txav nrog kev pab ntawm plaub khub ob txhais ceg nyob rau hauv qab ntawm cephalothorax. Raws li lub cev ntawm kev sib chwv thiab tsis hnov tsw, lawv siv cov whiskers ntev ntev. Lub plab ntawm tus tsiaj muaj tsib ntu, qhov kawg ntawm cov uas ua tib zoo hla mus rau hauv ib lub kiv cua zoo li caudal fin.

Los ntawm lub npe nws tus kheejNws pom tseeb tias Cuban xiav crayfish muaj xim tsis yog qauv. Ntxiv mus, lawv cov xim feem ntau nyob ntawm cov khoom noj khoom haus thiab cov xwm txheej ntawm kev kaw. Yog li, feem ntau koj tuaj yeem pom cov tib neeg ntawm xiav lossis lub teeb daj daj. Txhua qhov puv thiab ci ci ntawm cov xim tshwm tom qab mob qog noj ntshav mus txog hnub nyoog ob xyoos.

Tus cwj pwm zoo thiab sib haum nrog lwm yam tsiaj

Kev kaj siab xiav crayfish hauv thoob dej yug ntses tau zoo nrog lwm tus neeg nyob. Nws yog ib qho tseem ceeb uas lawv tsis txhob muaj kev tshaib kev nqhis. Ib tug arthropod uas tau noj zoo tsis zoo li kov ntses lossis nroj tsuag.

Nyob hauv lawv lub neej, cov tsiaj no tibneeg hu tauj coob nrhiav zaub mov. Lawv tuaj yeem nkag rau hauv pob zeb, nplooj, thiab cov cag ntoo. Ntshai crayfish muaj peev xwm tsim tau impressive ceev.

Nws yog ntshaw kom tsis pub ntau tshaj ib tug txiv neej nyob rau hauv ib lub thoob dej yug ntses. Txwv tsis pub, koj yuav tsum tau saib tsis tu ncua kev sib tsoo nyuaj, feem ntau xaus rau kev raug mob hnyav. Nws kuj yog qhov tsis xav tau rau xiav crayfish nyob nrog me me, qeeb, hauv qab lossis predatory ntses thiab nrog cov vaub kib dej. Yog tias tsim nyog, lawv tuaj yeem muab tso nrog cov ntses ntses, cichlids, balanteocheilus lossis barbs.

Cov xwm txheej hauv tebchaws

Ntau tus neeg hauv lub thoob dej yug ntses nyiam xav kom khaws cov arthropods hauv 100 litre ntim. Tab sis kuj tseem muaj cov kws tshaj lij uas paub tseeb tias koj tuaj yeem txwv koj tus kheej rau cov ntim me me. Raws li lawv xav, tsib caug litres yuav txaus rau ob tug neeg laus.

Vimxiav crayfish muaj tus cwj pwm tsis zoo ntawm kev khiav tawm, nws pom zoo kom npog lawv lub thoob dej yug ntses nrog lub hau. Cov dej npaj ua kom cov tsiaj no yuav tsum huv thiab saturated nrog oxygen. Nws yog ntshaw tias nws qhov kub thiab txias yog nyob rau hauv thaj tsam ntawm 20-25 degrees. Nws yog ib qho tseem ceeb rau nruab lub tsev ntawm arthropods nrog ib tug zoo biofilter thiab aerator. Hnub ci lub caij ntuj sov yuav tsum yog tsawg kawg kaum teev, nyob rau lub caij ntuj no - tsawg kawg yog yim.

Nyob rau hauv qab ntawm thoob dej yug ntses, xuab zeb tov nrog limestone los yog marble chips yuav tsum tau nchuav. Yog tias ua tau, cov nroj tsuag tawv tawv yuav tsum tau cog rau ntawd, uas cov qog nqaij hlav tuaj yeem dai. Rau cov laj thawj no, Thaib fern lossis Usteri cryptocoryne yog qhov zoo heev. Raws li cov chaw nyob, nws raug nquahu kom nruab snags, pob zeb thiab lwm yam décor nyob ntawd.

Crayfish noj dab tsi?

Cov arthropods no yog qhov tsis txaus ntseeg hauv txhua yam ntsig txog zaub mov. Nws yog paub tias Cuban crayfish tsis disdain txawm me ntsis lwj cov khoom. Lawv zoo siab noj cov zaub mov nyob los yog qhuav rau cov ntses hauv qab. Cov tub ntxhais hluas tuaj yeem muab cov tshuaj tua kab mob thiab tubifex. Cais, Java moss, dwarf anubias thiab hornwort yuav tsum tau loj hlob rau lawv.

Cov neeg laus crayfish yuav tsum tau pub nrog cov kab mob loj, cov kab hauv av, thiab cov squid, ntses lossis nqaij. Nws yog ib qho tseem ceeb uas yuav tsum tau muab cov tsiaj ua kom tiav thiab sib npaug.

Blue crayfish molt li cas?

cov arthropods no nyob qhov twg thiab peb ua dab tsixav txog nws. Yog li ntawd, peb tam sim no tig mus rau qhov sib npaug ntawm qhov tseem ceeb ntawm kev hloov cov chitinous npog. Tsis tas li ntawd, cov tub ntxhais hluas molt ntau dua li cov neeg laus.

Lub sijhawm no, kev tiv thaiv kab mob qog noj ntshav yuav tsum tau tawm ntawm lub npog uas tau tawg hla sab nraub qaum. Lub plhaub uas muab pov tseg ua pob tshab kiag li. Nyob rau hauv tsos, nws zoo li cov qog nqaij hlav nws tus kheej nrog claws thiab whiskers. Peb hnub tom ntej no, tus arthropod noj nws cov chitinous cover.

Lub sijhawm molting yog suav tias yog ib qho ntawm cov theem txaus ntshai tshaj plaws hauv lub neej ntawm tus tsiaj. Lub sijhawm no, nws cov npog tsis muaj sijhawm los ua kom muaj zog txaus los tiv thaiv nws los ntawm kev tawm tsam tus tsiaj. Yog li ntawd, mob qog noj ntshav feem ntau dhau los ua tus tsiaj yooj yim rau nws cov yeeb ncuab. Tsis tas li ntawd, tus arthropod tsis muaj dab tsi los zom zaub mov nrog, vim tias nws tshaib plab.

Cov kws tshaj lij pom zoo kom muab crayfish nyob rau hauv ib lub thoob dej yug ntses rau lub sijhawm molting, uas muaj aeration zoo thiab ntau qhov chaw.

Blue crayfish yug

Cov tib neeg uas muaj kev sib daj sib deev raug suav hais tias muaj hnub nyoog txog rau lub hlis. Lawv muaj peev xwm yug me nyuam thoob plaws hauv lub xyoo. Rau ib khub, nees nkaum-liter thoob dej yug ntses uas muaj dej rhuab mus rau 25 degrees yog txaus. Av tsis xav tau qhov no.

Cov khub xaiv tau muab tso rau hauv ib lub thawv cais. Cov txheej txheem mating yog ntev heev. Feem ntau nws yuav siv sij hawm tsawg kawg ib teev thiab ib nrab. Tom qab ntawd, tus txiv neej cog, thiab tus poj niam yuav tsum dais ntawm peb caug mus rau peb puas qe nyob rau hauv nws tus Tsov tus tw rau peb lub lis piam. Lub sijhawm no, nws txaj muag heev, yog li nws yog qhov zoo dua tsis txhob cuam tshuam nws. Tom qabpeb lub lis piam tom qab, cov xeeb ntxwv yug los ntawm cov qe siav. Nyob rau hauv tsos, me crustaceans yog heev reminiscent ntawm cov neeg laus, lawv txawm muaj pob tshab plhaub. Tom qab qhov thib ob molt, lawv tuaj yeem sib cais los ntawm lawv niam hauv ib lub tsev sib cais. Txog rau lub sijhawm ntawd, cov tub ntxhais hluas yuav nyob ze ntawm tus poj niam thiab thaum muaj kev hem thawj, nkaum hauv qab nws tus Tsov tus tw.

Lub hauv paus ntawm kev noj zaub mov ntawm cov crayfish yuav tsum yog cov khoom noj qhuav rau kib, tws xiav whiting fillet, me daphnia thiab cyclops.