水产科学
水產科學
수산과학
FISHERIES SCIENCE
2015年
8期
523-526
,共4页
张金平%冯德品%杨军%袁祖菊%何志刚%邹四新
張金平%馮德品%楊軍%袁祖菊%何誌剛%鄒四新
장금평%풍덕품%양군%원조국%하지강%추사신
神农架%多鳞铲颌鱼%繁殖生物学
神農架%多鱗鏟頜魚%繁殖生物學
신농가%다린산합어%번식생물학
Shennongjia%V aricorhinus macrolepis%reproductive biology
研究了神农架多鳞铲颌鱼的繁殖生物学。生殖季节可凭“珠星”等副性征辨别雌雄，首次性成熟年龄雌鱼为3龄、雄鱼为2龄；雌雄性比为1．08∶1。繁殖期为每年的4月底至6月中旬，属多次性产卵类型。个体绝对繁殖力为1527～15875粒，平均为（5568±3172）粒；个体相对繁殖力为11～41粒／g ，平均值为（27．14±7．46）粒／g。
研究瞭神農架多鱗鏟頜魚的繁殖生物學。生殖季節可憑“珠星”等副性徵辨彆雌雄，首次性成熟年齡雌魚為3齡、雄魚為2齡；雌雄性比為1．08∶1。繁殖期為每年的4月底至6月中旬，屬多次性產卵類型。箇體絕對繁殖力為1527～15875粒，平均為（5568±3172）粒；箇體相對繁殖力為11～41粒／g ，平均值為（27．14±7．46）粒／g。
연구료신농가다린산합어적번식생물학。생식계절가빙“주성”등부성정변별자웅，수차성성숙년령자어위3령、웅어위2령；자웅성비위1．08∶1。번식기위매년적4월저지6월중순，속다차성산란류형。개체절대번식력위1527～15875립，평균위（5568±3172）립；개체상대번식력위11～41립／g ，평균치위（27．14±7．46）립／g。
The reproductive biology of Varicorhinus macrolepis was studied in Shennongjia .During the re‐productive season ,sex is distinguished by “pearl” and other secondary sex characteristics ,and the first sexual maturity appeared at age 3 for female and age 2 for male with sex ratio of female/male = 1 .08∶1 . The breeding period was from the end of April to the middle of June ,and the species was found to be a multiple spawner .The individual absolute fecundity was ranged from 1527 eggs to 15 875 eggs ,with the average 5568 ± 3172 (SD);the individual relative fecundity was between 11-41 eggs/g ,with the average 27 .14 ± 7 .46 eggs (SD)/g .
