Bay Area Beach Day: Tidepooling Tips, Chaw, thiab Creatures

Peb cheeb tsam yog qhov zoo nkauj legendary rau nws qhov chaw qhib dav nrog kev pom zoo. Kuv nyiam hnov ​​zoo li ib tug me me speck nyob rau hauv ib tug loj heev, ntuj ntiaj teb ntug. Txawm li cas los xij, nws tseem zoo nkauj rau kev xav tsis thoob ntawm nws qhov kev xav tsis zoo ntawm qhov xwm txheej. Kev mus xyuas lub tidepool yog ib qho kev lom zem ua si uas caw koj mus zaum thiab saib qee cov tsiaj hiav txwv ntxim nyiam nyob ze. Hauv thaj chaw pob zeb raws ntug dej hiav txwv, koj yuav pom tag nrho lub ntiaj teb nyob rau hauv qhov ntiav ntiav, cais cov hnab ntim dej ntsev.

Hauv tsab blog no, koj yuav pom cov lus qhia ua kom koj qhov kev paub txog kev ua luam dej hauv dej zoo nkauj, nrog rau cov neeg nyob hauv pas dej uas koj yuav ntsib hauv cov chaw nyob tshwj xeeb no. Cia peb mus tshawb nrhiav!

ANEMONE

Koj puas paub tias anemones, vim lawv cov xim ci thiab cov ntaub ntawv flashy, tau muaj npe tom qab lub paj? Nws muaj tseeb! Feem ntau pom nyob rau hauv lub nkhaus ntawm lub tidepool, hiav txwv anemones noj tom qab lawv sib npaug zos stunning terrestrial counterpart, lub anemone paj. Thiab lawv cov xwm txheej zoo sib xws ua rau muaj kev nkag siab zoo - hiav txwv anemones muaj lub cev cylindrical hauv nruab nrab uas nyob ib puag ncig los ntawm cov paj zoo li cov nplooj ntoo. Nrog ntau tshaj 1,000 hom anemone, lawv cov xim loj heev npog tag nrho cov xim ntawm zaj sawv. Qhov ntau thiab tsawg sib txawv, xws li ib nrab nti mus rau rau taw! Nyob rau hauv tidepools, koj yuav muaj feem ntau yuav ntes cov me me, tab sis txawm tias cov boasts ntawm xim. Tab sis yuav tsum tau ceeb toom, nws yog qhov zoo dua kom koj txhais tes kom deb ntawm hiav txwv anemones. Qee hom muaj cov kab mob stinging hauv lawv cov tentacles - tom qab tag nrho, lawv yog ib feem ntawm Cnidaria phylum, uas nws lwm tus tswv cuab tseem ceeb yog jellyfish. 

Qhov chaw pom zoo:

Bean Hollow State Beach hauv Pescadero yog ib qho chaw zoo rau kev pom cov tsiaj txhu hauv dej ntws. Muaj feem ntau yuav pom ib lub paj anemone zoo nkauj ntawm no.

SEA STAR

"Ntses Hnub Qub" tawm lawm, "ntuj hnub qub" los txog lawm! Cov kws tshawb fawb txog dej hiav txwv tau sim "hloov lub npe" tus tsiaj hiav txwv uas neeg nyiam no, vim tias, txawm tias nws yuav xav tsis thoob los xij, "ntses hnub qub" tsis yog ntses. Tab sis txawm koj hu nws li cas los xij, nws nyuaj rau tsis nyiam tus echinoderm tsib txhais tes no. Nrog daim tawv nqaij calcified uas yog pob txha rau kev tiv thaiv, cov hnub qub dej hiav txwv paub txog lawv cov xim ci ntsa iab. Qee zaum, cov xim yog rau kev camouflage, tab sis cov xim ci ntsa iab kuj tuaj yeem yog ib qho tswv yim los hem tus tsiaj nyeg! Txawm hais tias peb feem ntau pom lawv zoo nkauj, lub hnub qub dej hiav txwv yog tus tsiaj nyeg uas muaj zog heev. Txhawm rau pub noj, lub plab ntawm lub hnub qub dej hiav txwv tawm ntawm lawv lub qhov ncauj, qhwv cov tsiaj nyeg thiab pib zom nws sab nraum nws lub cev. Tseem zoo nkauj? Zoo, tsawg kawg nws nthuav. Qhov tseeb lom zem - thaum tsib txhais tes yog cov hnub qub dej hiav txwv feem ntau, lwm hom muaj, suav nrog cov uas muaj 10 txhais tes, 20, thiab txawm tias 40!

Qhov chaw pom zoo:

Ntawm txhua yam tsiaj txhu hauv dej ntws, cov hnub qub hauv hiav txwv nyuaj rau pom dua. Txawm hais tias lawv feem ntau nyob hauv dej ntws, lawv nyiam cov dej tob dua - qee zaum txawm tias hauv qab dej hiav txwv txias thiab tawv! Txawm li cas los xij, kev pom cov hnub qub hauv hiav txwv yog qhov tshwm sim ntau ntawm cov dej ntws hauv Half Moon Bay, yog li ntawd yog tias koj xav pom cov hnub qub hauv hiav txwv tshaj plaws, peb pom zoo kom koj mus rau Fitzgerald Marine Reserve.

NUDIBRANCH

Ntawm txhua tus tsiaj txhu uas nyiam nkag mus rau hauv cov qhov tawg ntawm cov pas dej, cov nudibranch tej zaum yuav yog qhov muag pom tshaj plaws - thiab tej zaum yog qhov nyuaj tshaj plaws. Cov mollusks tsis muaj plhaub no yog ib feem ntawm tsev neeg slug hiav txwv, tab sis muaj ntau yam ntxiv rau lawv dua li lawv cov kua nplaum. Lawv lub cev zoo li jelly muaj ntau yam duab, xim, thiab cov qauv. Nrog ntau dua 2,000 hom nudibranch paub (thiab ntau dua tau tshawb pom!), muaj ntau yam zoo li nudibranch. Qee tus yuav muaj cov pob thiab lwm tus kab txaij. Qee tus muaj cov pob zoo li cov ntsia hlau thoob plaws lawv lub cev thiab qee tus du tag nrho! Saib qee qhov piv txwv ntawm cov hom nudibranch uas nyob hauv California ntawm no . Nco ntsoov, koj yuav pom lawv thaum dej qis heev. Yog li ntawd, yog tias koj xav pom nudibranch, npaj koj txoj kev taug kev hauv dej raws li qhov ntawd!

Qhov chaw pom zoo:

Privates Beach , Santa Cruz — Thaum dej qis, cov pas dej ntawm Privates Beach muaj dej ntau heev. Cov ntses Nudibranchs tau paub tias tau pom ntawm no, yog li nws yog qhov zoo los tshawb nrhiav qhov chaw no yog tias nws yog lawv koj tab tom nrhiav.

BANACLES

Barnacles tej zaum yuav tsis yog cov neeg ntxim hlub tshaj plaws hauv hiav txwv, tab sis hauv qab lawv cov tsos sab nrauv, peb pom cov crustacean ntxim nyiam thiab txiav txim siab! Paub txog kev ua raws li ob sab ntawm cov nkoj, saum cov whale, thiab cov contours ntawm rocky shores, barnacles yog admirable rau lawv tenacity. Lawv tso cov cement zoo li cov kua nplaum uas ua haujlwm zoo li cov kua nplaum uas muaj zog heev (muaj zog heev uas cov kws tshawb fawb tau kawm paub siv cov kua nplaum no li cas!). Thaum lawv tau xaiv qhov chaw los lo rau lawv tus kheej, lawv noj los ntawm cov plaub zoo li appendage hu ua cirri. Nws tshwm sim los ntawm sab saum toj ntawm lub barnacle thiab xav tias ib ncig ntawm cov kab mob microscopic. Coarse calcium daim hlau npog lub barnacle sab nrauv, tiv thaiv nws los ntawm kev hem. Muaj ntau dua 1,400 hom barnacles, tab sis hom ntau tshaj plaws yog cov pob kws pob kws.  

Qhov chaw pom zoo:

Koj yeej yuav pom cov kab barnacles ntawm txhua qhov chaw khov kho uas dej hiav txwv npog, yog li ntawd feem ntau yuav pom lawv ntawm cov ntug hiav txwv uas muaj pob zeb ntau dua. Peb xav kom koj mus xyuas China Beach hauv San Francisco.

HERMIT CRABS

Hermit crabs yog ib qho tshwj xeeb tshaj yog crustacean. Yog tias koj pom cov kab mob no hla cov pob zeb ntawm tidepools, koj yuav pom tias lawv cov plhaub yuav npog ntau yam ntawm cov duab, qhov loj me, thiab xim. Tias yog vim li cas hermit crabs tsis loj hlob lawv tus kheej shells - lawv nrhiav tau pov tseg plhaub ntawm lwm yam tsiaj thiab siv lawv ob txhais tes (los yog ob claw?). Hermit crabs yog technically tsis muaj tseeb crabs. Lawv tsis muaj qhov nyuaj exoskeleton uas ua rau lwm cov crabs tiv thaiv sab nraud. Es tsis txhob, lawv muaj ib tug tawv exoskeleton nyob rau hauv pem hauv ntej, thiab ib tug mos tawv tawv tus Tsov tus tw. Yog li, lawv xav tau kev tiv thaiv ntxiv. Txawm hais tias muaj ntau dua 800 hom hermit crabs, feem ntau hauv peb cheeb tsam yog blueband hermit crabs, npe rau lawv cov kab xiav xiav ntawm lawv ob txhais ceg. Txawm hais tias raug hu ua hermits, lawv yeej paub tias mus ncig hauv pab pawg - yog li khaws koj lub qhov muag tawm rau ib qho kev sib tw ntawm cov ntiv tes ntev! 

Qhov chaw pom zoo:

Robert W. Crown Memorial Park hauv Alameda yog lub tsev rau Crab Cove nyob rau sab qaum teb kawg. Thaj chaw no yog ib qho chaw tiv thaiv dej hiav txwv, thiab yog qhov chaw zoo rau kev nrhiav cov ntses hermit crab thiab lwm cov crustaceans hauv dej.