Nyob ntawm ntses txhais tau hais tias lub qhov ncauj muaj xws li cichlids, sea catfish, cardinalfish, Bagrid catfish, pikeheads, jawfishes, gouramis thiab arowanas. Rau cov niam txiv lub qhov ncauj, kev saib xyuas niam txiv pib thaum lub qe tau fertilized, thiab qee qhov tseem txuas ntxiv lawv qhov chaw nyob tom qab cov qe tau hatched.
Ntses twg yog qhov ncauj?
Mouthbreeder, noj ntses uas yug nws cov menyuam hauv qhov ncauj. Piv txwv suav nrog qee cov ntses ntses, cichlids, thiab ntses ntses. Tus txiv neej ntawm lub hiav txwv catfish Galeichthys felis muab 50 qe fertilized nyob rau hauv nws lub qhov ncauj thiab khaws cia kom txog thaum lawv hatched thiab cov me nyuam muaj ob los yog ntau tshaj lub lis piam.
ntses nqhis qe?
Qhov no kuj tsis tshua muaj, tab sis pom muaj nyob hauv cov cichlid genus Xenotilapia, thiab ib zaug catfish, spatula-barbled catfish (Phyllonemus typus). Feem ntau, tom qab kev sib tham, tus txiv neej fertilises lub qe thiab ces sau lawv nyob rau hauv nws lub qhov ncauj, tuav mus rau lawv mus txog rau thaum lawv hatch.
Puas yog tilapia mouthbrooders?
Cov ntses tilapia (Oreochromis spp) yog uniparental mouthbrooders, nrog rau cov poj niam incubating tshiab fertilized qe thiab larvae nyob rau hauv lub qhov ncauj kab noj hniav, feem ntau mus txog rau thaum tag nrho cov nqus ntawm larva yolk sac [5].
Ntses dab tsi tuav cov menyuam hauv qhov ncauj?
Hardhead Hiav txwv Catfish Tus txiv neej tuav cov qe fertilized nyob rau hauv nws lub qhov ncauj mus txog rau thaum lawv loj hlob, uas yuav muaj li 80hnub. Ob lub lis piam tom ntej no, cov kib yuav siv lawv txiv lub qhov ncauj los tiv thaiv thaum lawv xav tias raug hem.
