底栖章鱼中的交接腕通常是第三个右臂。
The hectocotylus in benthic octopuses is usually the third right arm.
而在新制度下,新英格兰针对鳕鱼等底栖鱼类,以渔船分组的形式进行限额捕捞。
Under the new system, new England's groundfish catch, mainly cod and haddock, is divided among co-operative groups of boats called sectors.
趁着这个间隙,海豚会丢掉嘴中的海绵,浮出海面换气,接着马上潜入水里捕捉这些长度只有12cm的底栖鱼。
That interlude gives the dolphin just enough time to drop its sponge, surface to get a breath, and dive again to snag the fish, most of which are about 12 centimeters in length.
密歇根大学的研究生CeliaChurchill说:“我们有一个很好的想法,那就是漂浮泡泡蜗牛由生活在海底的底栖蜗牛进化而来”。
University of Michigan graduate student Celia Churchill said: 'We had a pretty good idea that that janthinids evolved from snails that live on the sea floor.
当一只底栖鱼逃离隐藏的地点时,不会马上再找个地方藏身,而是会游上几米。
After a fish emerges from its hiding spot, it swims a few meters away and doesn't immediately rebury itself.
中国已经加入了诸如IODP等深海研究计划,有必要向我国学术界提供底栖有孔虫研究的新方向,以资参考。
Since China has joined such deep-sea research programs as IODP, some new directions in benthic foraminiferal studies are proposed to the Chinese community.
野生底栖海藻含有丰富的营养,尤其是微量元素和生物活性物质。
The wild benthic Marine algae include rich nutrient and trace element and active substance of biology.
黄鲷是底栖性鱼类,具较高的经济价值和观赏价值。
Yellow porgy Taius tumifrons is a demersal fish with higher economic and admiring viewing values.
据分析,PETM事件的发生造成海水温度的快速上升,底栖大有孔虫不能适应新的环境,从而发生灭绝。
According to the analysis, PETM event caused seawater temperature rising and environment change during a short time, larger benthic foraminifera cannot fit for it and begin to extinct.
本研究利用生物监测方法,探明了京杭运河徐州段大型底栖无脊椎动物的生物种群及其分布。
The biolocial population and distribution of benthic macro-invertebrates in Xuzhou region of Jinghang Great Canal have been ascertained bybioassay method.
群落响应:每一个海平面变化旋回都要产生底栖海相群落的重组,形成新的生物组合。
Community response: Each eustatic cycle will result in reorganization of benthic Marine communities, forming a new biotic assemblage.
结果表明,红树区底栖大型动物群落总平均生物量的季节变化是不显著的(P>0.05)。
The results showed that, seasonal change of total mean biomass of benthic macrofauna in the mangroves was not significant(P>0.05).
它生活在湖边浅水区靠近湖底的水域,以底栖无脊椎动物为食。
It lives near the lake bottom in the shallow water of the lake shore and feeds on benthic invertebrates.
根据对水质的监测结果和取水口附近底栖动物的调查结果,分析南通港两个通用散货泊位工程建设对下游狼山水厂取水口水质的影响。
On the basis of monitoring results of water quality and benthos, the impacts of two generic bulk berths construction in Nantong Port on downstream water quality of water intake were analyzed.
后来有一天,“南瓜头”突然从栖 木上一头栽到了鸟笼子的底儿上。
Then one day, Punkinhead suddenly plunged headlong from his perch to the bottom of the cage.
研究表明,渤海北部底栖海藻的温度性质以暖温带性为主,带有一定的亚热带性;
The study showed that the marine algae flora of the northern Bohai Sea coast belongs to warm temperate in nature with considerable subtropical composition.
此外,小型底栖动物具有活动范围小、对环境的变化反应灵敏等特点,是环境改变很好的指示生物。
Besides, meiofauna are good environmental indicator organism because they move slowly and are sensitive to the change of environment.
大部分为底栖鱼,特征是具一个由腹鳍愈合而成的吸力不强的吸盘。
Most species are small bottom dwellers with a weak suction cup formed by the fusion of their pelvic fins.
从底栖动物指示种的变化,可预测水质变化的趋势以及季节性的差异。
From the changes of the biological indicators, it could be able to predict the trends of changes of river water quality and seasonal variations.
同时还对青岛岩礁附植小型底栖动物的ATP含量进行了研究。
Meanwhile, ATP content of the phytal meiofauna from the rocky intertidal zone in Qingdao was studied.
本文运用计数法、封闭器法和培养法对底栖动物的生物量、呼吸强度和P/B系数进行了研究。
The study on the biomass, respiration and P/B coefficient of benthon have been carried out with counting method, sealed apparatus method and cultivation method in Sanjiang Plain.
以底栖动物作为底层水环境和底泥环境长期影响的指标,利用生物指数和种群结构的变化对底质进行评价和分析。
The ground base was evaluated and analysed by using biological index and variation of population of benthon which are effected by bottom water and mud environment.
该时期的底栖大有孔虫的绝灭(BEE)以及演替(LFT)在古近纪底栖大有孔虫演化过程中起着非常重要的作用。
The benthic extinction event (BEE) and larger foraminifera turnover (LFT) during the Paleocene-Eocene transition constitutes an important step in Paleogene larger-foraminifera evolution.
研究结果揭示了适宜的底栖硅藻种类对鲍早期稚贝阶段生长和存活的重要性。
The results of present work suggests that rearing with appropriate marine benthic diatom species be important to growth and survival of abalone postlarvae.
作者于1986年和1988年在连云港海域进行了底栖动物采样,调查得出了生物量和栖息密度的分布概况。
In 1986 and 1988 the authors sampled macrofauna benthos and investigated the distribution of biomass and density.
概括了底栖动物的概念,列举了淡水底栖动物的主要类群;综述了近年来我国利用底栖动物评价和监测水质的主要工作。
The concept and main groups of zoobenthos was summarized, and studies of assessment and monitoring of water quality by using benthic animal in China were reviewed.
探讨底栖动物对重金属的吸收机制和生物、非生物因子对底栖动物重金属富集量的影响。
The mechanism of macrobenthos assimilating heavy metals and the effect of biologic and abiological factors to the enrichment content of heavy metals are discussed.
黄海冷水团水域大型底栖动物生物量秋季比较大,而小型底栖动物生物量存在春、秋两季的高值。
The biomass of macrobenthos is higher in Autumn while that of meiobenthos tends to be higher in both Spring and Autumn.
黄海冷水团水域大型底栖动物生物量秋季比较大,而小型底栖动物生物量存在春、秋两季的高值。
The biomass of macrobenthos is higher in Autumn while that of meiobenthos tends to be higher in both Spring and Autumn.
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