spawning season 中文意思是什麼

spawning season 解釋
產卵季節
  • spawning : 產卵
  • season : n 1 季;季節;〈美國〉雨季。2 (水果、魚類等的)旺季;流行季節;時令;活動期。3 好時機;適當時機...
  1. Sailling against the current is the very important period of spawning and feeded in the whole life time. the best fishing season is from december to the next febuary and april to june

    分佈於北太平洋西部近海我國的黃海和渤海產量多,東海較少漁期分春秋兩季, 4 - 5月份為春汛。
  2. Black paradise fish inhabits in sluggish, swampy of water bodies, with elliptical and laterally compressed body, black to grayish body ; during spawning season, males exhibit a dark colour ; males have a maximum size about 12cm while females about 8cm

    它主要生長在水流緩慢的沼澤水域,身體呈橢圓形,側端扁平,體色偏黑,在繁殖時體色會變得深黑成熟的公魚可長至12公分左右,母魚則長8公分左右。
  3. To control the fishing effort of the commercial fishing fleet and protect the important nursery and spawning grounds in hong kong waters, the department is pursuing the proposals for the introduction of a fishing licence programme and mechanism for closed season, and the designation of fisheries protection areas

    此外本署亦正計劃透過實施捕魚牌照制度設立漁業保護區和制定在香港水域實施休漁期的機制,以控制捕魚船隊的捕撈力量及保護本地重要的魚類育苗及產卵場。
  4. Shrimp is the main food source of cuttlefish, which scattered at the yellow sea and the bo sea of china from every december to the next march in the winter season. after april, it leave the water field to spawning against the current from south to north

    為肉食性,平時以毛蝦鷹爪蝦為食,主要分佈在黃海,渤海一帶,越冬期為12月至豎年3月底, 4月後離開越冬埸而進入產卵洄遊,由南向北。
  5. In spawning season, the oviduct differentiated evidently into three parts : the fimbriase of the oviduct, the middle main oviduct and the uterine part

    產卵期輸卵管明顯分成傘部,中段和直段,其末端以尖端突入泄殖腔。 3
  6. The reservoirs in hong kong are open to anglers with valid fishing licences for fishing only in non - spawning season from september 1 each year to march 31 the following year. endssunday, march 28, 2004

    香港水塘一般只于魚類非繁殖季節,即由每年九月一日至翌年三月三十一日,開放供持有有效釣魚牌照人士垂釣。
  7. We compared the population size after spawning this year with the size before reproduction season of last year to deduce the degree of population fluctuation. the scope of investigation is almost the same with that of last year except that the middle and upper segments of skyline creek were excluded

    本年度的調查范圍和去年度所做的普查范圍大致相同,但司界蘭溪中、上游溪段在去年度調查結果顯示已無魚群分佈蹤跡,同時因為本年河川流量過大,故於本年度並未調查。
  8. The temperature of creek segments down from dam no. 2 has exceeded the upper survival limit of juvenile salmons. the spawning season temperature of these segments also tends to surpass normal reproduction temperature range

    二號壩以下溪段七、八月的夏季高溫已到達幼鮭耐受極限,生殖季節水溫亦偏高,為不適于棲息之環境。
  9. The testes of pseudobagurs fulvidraco ( richardson ) can be divided into two parts. the anterior part is spermatogenic part where spermatogenesis proceed. the posterior part of it is the seminal vesicle, which can store sperms and produce large amount of fluid during spawning season. at the end of april, the spermatogenic part of the testes, which is at stage, begin the initiation of spermatogenesis. in may, the spermatogenic part of the testes, which is at stage , starts active spermatogenesis. from june to novermber, the spermatogenic part is at stage, and spermatogenesis is actively proceeding. from december to the beginning of next april, the spermatogenic part is at stage. the wall of the lobulus is made up of cystes of spermatogonia throughout the whole winter time

    黃顙魚的精巢從外形上分為上、下兩段.上段為生精部,下段為貯精囊.性成熟黃顙魚精巢的生精部為小葉型結構,其周年變化經歷如下過程:期?期?期?期?期. 4月下旬開始生精活動的啟動.生殖季節為5 7月, 5月生精部處于期. 6 7月生精部處于期,產生大量精子. 8 11月雖非生殖季節,生精部仍進行生精活動. 12月至翌年4月,生精部處于期,並以期精巢過冬.貯精囊在生殖季節分泌活動旺盛,產生大量分泌物
  10. Unselective fishing methods and fry collection during the spawning season compromise the sustainability of the local fisheries industry

    一網打盡的捕魚方式,以及在產卵期間采捕魚苗,均會削弱本地漁業的可持續發展。
  11. It s a species of large squid with a bit brown color. the spawning season is from every december to the next january, and swim to the yellow sea after may, in july and august, it come to the area of bo sea, and continue to move to the east from september

    魚體大,內殼角質透明,棕黃色,產卵期在12月至豎年1月, 5 - 6月進入黃海中部, 7 - 8月在渤海灣一帶, 9月東移, 12月以後產卵,力衰死亡。
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