Marsh dwarf crayfish

Marsh dwarf crayfish (Cambarellus puer), belongs rau tsev neeg Cambaridae. Nws nyob thoob plaws hauv North America hauv qhov tam sim no Tebchaws Meskas thiab sab qab teb Canada. Outwardly, nws zoo li ib tug dog dig European crayfish, tsuas yog ntau me me. Cov neeg laus ncav cuag tsuas yog 3 cm.

Tu thiab kev saib xyuas

Nws muaj peev xwm khaws cia rau hauv ib lub thoob dej yug ntses nyob ib puag ncig ntawm cov ntses me me thiab cov cw. Txaus siab rau ntau yam ntawm pH thiab dGH qhov tseem ceeb, qhov tsuas yog qhov tseem ceeb yog qhov purity ntawm cov dej. Tus qauv tsim yuav tsum muaj xws li cov chaw rau cov chaw nyob qhov twg cov crayfish tuaj yeem nkaum thaum lub sij hawm molting, piv txwv li, snags, intertwined ntoo cov hauv paus hniav los yog ceg ntoo, txhua yam khoom zoo nkauj nyob rau hauv daim ntawv ntawm sunken ships los yog ceramic amphoras.

Cov khoom noj muaj cov seem ntawm cov zaub mov ntawm cov ntses thoob dej yug ntses thiab ntau yam organic teeb meem. Tsis tas yuav pub noj cais; nyob rau hauv lub thoob dej yug ntses noj qab nyob zoo, zaub mov txaus rau ib tug me me colony. Txhawm rau kom tsis txhob muaj kev puas tsuaj rau cov nroj tsuag, thiab Marsh crayfish tuaj yeem noj lawv, ib zaug ib lub lim tiam koj tuaj yeem noj ob peb daim zaub lossis txiv hmab txiv ntoo xws li carrots, dib, lettuce, spinach, txiv apples, pears, thiab lwm yam. lub lim tiam los tiv thaiv lawv cov decomposition thiab dej paug.