Dej qab zib Sardines

Cov dej qab zib sardines- lub npe no suab zoo li soothing, puas yog nws tsis conjure cov duab ntawm cov ntxhiab tsw tshiab ntawm dej hiav txwv? Niaj hnub no, cia peb tshawb nrhiav lub ntiaj teb ntawm tus tsiaj me no thiab tshawb pom nws cov secrets fascinating!

Cov yam ntxwv tseem ceeb ntawm Freshwater Sardines

Lub cev yog slender, me ntsis cylindrical, thiab tom qab compressed, zoo li ib tug elegant silver thread.

Lub taub hau yog blunt thiab taw tes, nrog ib tug ntev snout, zoo li lub kaus mom me me.

Lub cev yog them nrog cov nplai ctenoid tsis muaj zog, nrog rau feem ntau ntawm lub taub hau npog hauv nplai. Cov kab sab nraud yog yuav luag ncaj, zoo li cov kab zoo nkauj zoo nkauj.

Lub cev yog mis nyuj dawb nrog me ntsis yellowish tinge thiab ib tug silvery sheen, zoo li hnav lub tsho tiv no shimmering.

Sab pem hauv ntej ntawm thawj dorsal fin yog xim dub, qee zaum muaj plaub kab ntev ntawm cov xim av ntawm daim nyias nyias ntawm ob lub dorsal fin. Cov lus qhia ntawm lub lobes sab sauv thiab sab qis ntawm lub caudal fin yog greyish -dub, thaum cov fins ntxiv yog pob tshab, zoo li cov xim dej zoo nkauj.

Kev faib tawm thiab Chaw Nyob ntawm Dej Ntshiab Sardines

Lawv tau nthuav dav, xws li sab qaum teb ntawm ntug dej hiav txwv Indian mus rau Australia, thiab mus txog rau sab qaum teb mus rau Kaus Lim Kauslim thiab Nyij Pooj. Lawv tuaj yeem pom nyob rau hauv hiav txwv Bohai, Hiav Txwv Yellow, East China Hiav Txwv, Taiwan Strait, thiab South China Sea ntawm Tuam Tshoj.

Lawv nyob hauv cov xuab zeb, dej hiav txwv ntiav, estuaries, thiab mangrove, qee zaum venturing rau hauv dej tshiab, zoo li taug txuj kev nyuaj me me.

Lawv nyiam dej sov thiab, thaum poob siab, nrawm nrawm rau hauv cov xuab zeb, zoo li txaj muag me ntsis sprites.

Ecological Lub luag hauj lwm ntawm Freshwater Sardines

Lawv ua lub luag haujlwm tseem ceeb hauv cov khoom noj khoom haus, feem ntau pub rau cov me me invertebrates xws li ntev-tailed dinosaurs, anhedrals, polychaetes, amphipods, thiab mysids, ua raws li scavengers hauv marine ecosystem.

Lawv ncav cuag kev loj hlob ntawm kev sib deev thaum muaj hnub nyoog 2 xyoos, spawning thaum Lub Rau Hli mus txog Lub Yim Hli, nrog lub fecundity ntawm 6742-20372 qe, nruab nrab ntawm 18763 qe, zoo li ib tug neeg mob siab rau kev tu lub neej hauv dej hiav txwv.

Cov qe yog buoyant, oval -zoo li tus, thiab muaj ib cov roj globule, zoo li cov hlaws me me ntab saum dej saum npoo av, tos qhov txuj ci tseem ceeb ntawm lub neej.

Cov sardines dej tshiab, cov tsiaj me me no, tsis yog tsuas yog zoo nkauj xwb, tab sis kuj ua lub luag haujlwm tseem ceeb hauv zej zog. Yog tias koj muaj sijhawm, nco ntsoov mus xyuas lub puam kom pom lawv thiab hnov ​​​​qhov tseem ceeb uas lawv nqa!