Structure crayfish: zvekunze uye zvemukati

The nemamiriro crayfish, inova mumiririri norudzi arthropods chokuita ake ezvinhu. Ichi randinenge ugere Freshwater chinofema kushandisa gills. Pepa ichi, kuti crayfish ichakurukurwa. The mamiriro, mifananidzo, dzinogarisana uye maitiro upenyu dzinoturwa kufarirwa yako pazasi.

The maitiro zviri crustaceans

Kufanana arthropods zvose, nemamiriro ose crayfish (mufananidzo pazasi unoratidza izvozvo) inomiririrwa segmented muviri uye maoko nemakumbo. A musoro, thorax uye dumbu. muviri zvikamu zviri aiwanzopiwa wokushanda maoko nemakumbo, zvinosanganisira nomumwe zvikamu. Vanokwanisa kuita chaizvo kunzwisisa kufamba. Zvine Mbabvu kazhinji vasiyana chityu muviri zvikamu. Crayfish kwokunze mamiriro anoenderana zvachose sevanhu zvinhu arthropods.

dzinogarisana

Crayfish anogona kuwanikwa mumvura yakachena. Uyezve, kuvapo kwavo kunogona kunzi sezvo nechiidzo waro kwezvakatipoteredza kuchengeteka. Pashure pezvose, mhuka idzi vanoda madziva nemvura yakachena uye yakakwirira okisijeni kugutsikana. The nemamiriro crayfish ndiye anokonzera kugona kwavo kukambaira tichibatsirwa achifamba makumbo, kana dzinoshambira. Masikati vari dzinongoitika matumba. Night kukambaira kubva mumakomba avo kubva pasi matombo uye matanda. Panguva ino vari kutsvaka zvokudya. Panyaya iyi, crayfish havasi choosy. Kazhinji ndivo omnivores. Honye, hove furaya, tadpoles, mollusks, algae - vachafanira kuravidza rwizi crayfish. Havana havazvidzi uye akafa makemikari nyaya. Kana ukasarudza kuva mhuka mumba mako akwariyamu, yakakodzera zvokudya kwete chinokosha inosimbisa, asiwo nyama, miriwo uye chingwa. Zvisinei, panguva imwe cheteyo irambe yakachena mvura achava zvakaoma.

The kwokunze nemamiriro crayfish

nekenza muviri ine zvikamu zviviri. It cephalothorax uye dumbu. Nechemberi akafuka anonzi nevamwe. A dumbu ine munhu zvikamu izvo vakaronga pamusoro pamahwendefa maduku. On cephalothorax tiri majoko maviri tunonzwa, mouthparts uye majoko mashanu achifamba makumbo. Mumwe nomumwe wavo anoita zvimwe mabasa. Somuenzaniso, mashoko okutanga peya miromo pamwe nenzara simba kuti vanoshumira kuti ndibate zvokudya, nokuikwachura zvidimbu, uye kudzivirirwa kuvavengi.

yegwara Mbabvu matanhatu dzakabatana mudumbu. The wokupedzisira peya makumbo unoratidzwa uye pamwe chete mumagaro ndiro siyana ane muswe zenze. In nechitarisiko afanane munhu feni. With mumagaro crayfish nokukurumidza kushambira shure magumo kutanga. Pamwe vane 19 maoko nemakumbo.

muviri zvifukidziro

Features crayfish mamiriro zvikurukuru nemaonero wawo. Kufanana arthropods ose, anomiririrwa cuticle, iyo inowanikwa iri exoskeleton simba. Rinopa mamwe zvakaoma karusiyamu carbonate, izvo akaiswa mushonga wokuuraya.

Sezvo cuticle yausingagoni ruoko, crayfish kukura achiperekedzwa nenguva dzirikure molts. Iyi yakaoma muupenyu izvi mvura vanogara. Mazuva mashoma asati rutumba ichi vava mukuchema, kumisa kudyisa, uye nguva dzose apedza kunotsvaka outiziro. With zvikuru kufamba uye muviri Mbabvu ivo kubvisa yekare jira iyo vape- kuburikidza mutswe pamuganhu cephalothorax uye dumbu. In yakachengeteka pokugara nekenza vari kusvika mazuva gumi, kusvikira cuticle itsva mukukutu.

The womukati nemamiriro crayfish

Munguva embryo Kugadzirwa arthropods dzaivunganidzirwa yechipiri muviri mhango. Asi iye haagari upenyu hwose hwemhuka. In nedanho munhu kukura mamiriro ichi yaparadzwa, kubatanidzwa nomumwe pamwe vakasara zvikuru uye hwakakanyiwa kuti vaumbe mhango. Pakakoromorwa pakati pezvitunha azara mafuta muviri crustaceans. Zviri unzenza connective zvinyama mhando, izvo anoita zvinokosha kushanda: kuchengetera zvokudya, paumbwe masero eropa, kudzivirira zvokuimba kukuvara.

zvetsandanyama nemapfupa maitiro

The nemamiriro crayfish iri yakasiyana sechivako mollusks uye coelenterates. Zvikurukuru, havana ganda-tsandanyama zai. Pasi simba exoskeleton muri vanomirirwa nemwanda striated tsandanyama anogona vanodzokera nokukurumidza.

Major nhego hurongwa

The womukati nemamiriro crayfish akapa kumbonyanya kunzwisisa nenhengo dzawo. Zvomudumbu - the kuburikidza mhando, pamwe pamberi chiropa uye mate mumasero kuti secrete makemikari kuti kuputsa muviri. Kwokupedzisira metabolic zvigadzirwa vanobviswa kubva mumuviri achishandisa mashoko excretory ezvinhu, akapa Malpighian tubules.

Respiratoria crayfish nokuda kuzodiridza ake ezvinhu, ndiwo gills. Vari chokuita zvikuru kweropa hurongwa. Haina kuvharwa. tsinga svinudzai kupinda muviri mhango, hwakakanyiwa ayo mura fomu hemolymph. Inopa senga reokisijeni, carbon dioxide, zvokudya, metabolic zvigadzirwa.

Chinonyanya kukosha basa ndiye hemolymph uye kudzivirira. Rine masero kushandiswa kuti aite amoeboid inofamba kubatwa pseudopodia utachiona uye kugaya navo. Anozunungusa hemolymph muviri inopa thickened mudziyo pulsating - mwoyo. Sezvo ropa yakavhenganiswa coelomic mvura uye haana yakapatsanurwa kupinda arterial uye venous, crayfish ndiyo mhuka ine utsinye. Izvi zvinoreva kuti ayo tembiricha muviri anodonhedza kuti kutonhora zviri zvakatipoteredza.

Mukupera kwematsutso crayfish kutanga kuwanda. Hazvina dioecious nemhuka zvakananga kukura uye kwokunze muchangosangana. Munhurume rine mbiri testes uye vas deferens, hadzi - ovary uye aiwanzopiwa wokushanda oviducts. Mushure fertilization, mazai vari abdominal makumbo munhukadzi. Saka iye anoratidza rwaamai papfungwa, kunetseka pamusoro mwana ramangwana. Zuva chitubu kana mangwanani muzhizha wavo tisangoti vaduku magakanje kuti vari yakatofanana vakuru.

Zvakakwana zvakaoma kuwana uye tsinga. Inoitwa kusiyaniswa zvikamu: mberi, pakati uye neshure. First chinja meso basa, anopa vepamusorosoro maitiro mhinduro yemhuka idzi, uye navamwe innervate ndebvu. Brain anatomically nechokuita ventral etsinga tambo, umo muviri wacho tsinga fibers amunzwire.

Kukosha zvakasikwa uye upenyu hwevanhu

Juveniles crayfish chimiro plankton Freshwater - chinomubatanidza inokosha romugove cheni. Kushandisa zvokudya zvemhuka akafa, ivo yakachena. Munguva ichangopfuura, nokuda inokanganisa nhamba yevanhu crayfish vemo shoma zvinoshamisa. The tsvina mvura crayfish mwana vanotozvikuvadza hwakamirira rufu. Izvi zvinoitika nekuda rinokosha vezvokutengeserana kukosha mumiririri arthropods. Pashure pezvose, crayfish nyama inokosha chikafu chigadzirwa, uye mune dzimwe nzvimbo kunyange delicacy. Hazvina akapfuma mapuroteni, mavhitaminzi, uye chero zvinhu. Crayfish ndiro rakakura kupfuura mamwe ose kirasi mumiriri anogara mvura yakachena. Kuti aponese ichi mhando zvakasikwa, kusvikira mid-zhizha ivo Hove pamutemo kurambidzwa.

The nemamiriro rwizi kunonyanya kukonzerwa kenza ake ezvinhu uye anosarudza kukosha kwayo zvakasikwa uye upenyu hwevanhu.