膜生物反应器-复合垂直流人工湿地(SMBR-IVCW)系统处理混合废水的应用研究

本文采用一体式膜生物反应器(SMBR)-复合垂直流人工湿地(IVCW)组合工艺(SMBR-IVCW)系统,研究了该系统对复合废水的净化效果。结果表明,当系统进水为CODCr397～890mg.L-1、氨氮9.40～27.1mg.L-1、TP4.30～10.7mg.L-1、TN45.9～75.8mg.L-1的条件下,在SMBR和IVCW的水力负荷分别为1000L.d-1和375mm.d-1的最优工况下运行,系统CODCr、NH3-N、TN和TP的去除率分别为97.5%、99.0%、59.6%和65.2%;系

菜籽粕对异育银鲫免疫应答能力的影响

试验鱼以投喂饲料的不同和是否注射抗原共分为10组,即免疫组:A、B、C、D、E组,免疫对照组:a、b、c、de、组,饲料对照组:A、a组。饲料试验组B、C、D、E、bc、、d、e组。其中,饲料对照组以豆粕和鱼粉为基础蛋白源,饲料试验组分别以双低菜籽粕和普通菜籽粕等氮替代对照组中50%(B、b;D、d)和100%(C、c;E、e)的豆粕蛋白,测定异育银鲫血液白细胞和头肾吞噬细胞的吞噬活性、血清溶菌酶活性、血清补体(C3,C4)含量、血清凝集抗体效价及免疫保护率。结果表明:从免疫后21 d开始,饲料试验组E、

滇池典型区域磷与铁的形态分布规律

通过调查滇池三个湖湾不同深度水层磷与铁的形态分布,研究三个湖湾内源磷的释放规律.结果表明,在海埂湾间隙水中,磷的释放强度远高于另外两个湖湾,根据水体中各种形态磷和铁的关系,推测出在这三个湖湾中,铁结合态磷是湖水悬浮物和沉积物中一种重要的可释放磷.

洗涤剂禁(限)磷对流域水质影响预测

本文在确定流域洗涤剂的磷在水体磷负荷中所占的比重及贡献率的基础上 ,采用Thomoamn数学模型 ,对在实施洗涤剂禁限磷措施后 ,流域水质的响应进行预测 ,并评估洗涤剂禁限磷的环境效果 .水质预测结果表明 ,实行限、禁磷措施后 ,供水水质磷含量将从目前的 0 .2 4mg/L降至 0 .18mg/L ,磷负荷削减了 2 5 % ;如严格控制流域禽畜散养 ,削减非点源磷盐 6 0 % ,供水水质处于地面水Ⅱ类水质 (0 .1mg/L)标准临界水平

中华鳖病毒的血清学检测

中华鳖病毒（ＴＳＶ）是从病鳖中分离到的一种病毒病原。经细胞培养和差异离心制备ＴＳＶ抗原，肌注家兔获 ＴＳＶ抗体（ＴＳＶ－Ａｂ），中和效价为 １：２０。用 ＴＳＶ－Ａｂ进行双向免疫扩散和间接ＥＬＩＳＡ检测，被检样品有健康和病鳖组织匀浆液、ＴＳＶ细胞培养液、提纯的ＴＳＶ，以及鱼传染性胰脏坏死病毒（ＩＰＮＶ）、草鱼呼肠孤病毒（ＧＣＶ）、鱼病毒性出血败血症病毒（ＶＨＳＶ）、鲤痘疮病毒（Ｃａｒｐ ｐｏｘ ｖｉｒｕｓ）和斑节对虾杆状病毒（ＭＢＶ）。检测结果显示：ＩＰＮＶ、ＧＣＶ、ＶＨＳＶ、Ｃａｒｐ ｐｏｘ ｖｉｒｕｓ

我国早期的一篇淡水藻类分类学论文及其作者

在国立武昌高等师范学校编辑出版的《博物学会杂志》第一卷到第四卷 (共 4期 )上刊载的毕祖高撰写的“武昌长湖之藻类”一文是迄今所知由中国科学家研究中国标本所正式发表的淡水藻类分类学的第一篇论文 .此篇论文的发表 ,标志着中国淡水藻类的采集、调查研究和发表完全由中国人己独立承担任务并取得成绩的开始 .毕祖高是国立武昌高师博物部 1917年的毕业生 ,发表此文时 ,他是国立武昌高师附属中学的博物学教员 .

中国真缓步纲三新种及六新纪录种记述(近爪目:大生熊虫科,高生熊虫科)

记述了大生熊虫科大生熊虫属Macrobiotus一新种和三新纪录种,即神农大生熊虫,新种M.shennongensissp.nov.、桃形大生熊虫M.persimilisBinda&Pilato,1972,卷形大生熊虫M.rolleiHeinis,1921,陆栖大生熊虫M.terricolaMihelcic,1949以及趾生熊虫属一新种,即水生趾生熊虫,新种Dactylobiotusaquatilissp.nov.;高生熊虫科等高熊虫属Isohypsibius一新种和二新纪录种,即长白等高熊虫,Is.ch

草鱼出血病病毒的研究进展

根据80－90年代中国关于草鱼出血病病毒研究的进展，就草鱼出血病病毒的发现、形态结构特征、理化特性、基因组结构及其所编码的多肽、基因组的转录和翻译过程，病毒的繁殖动态、体外细胞培养特性，病毒对鱼体的致病机理和宿主范围，草鱼出血病的诊断和防治等问题进行综合评述，总结概括了草鱼出血病病毒的研究现状以及研究中需要亟待解决的问题，并提出该领域以后的重点研究方向。

富营养浅水湖泊的退化与生态恢复

初步讨论了富营养浅水湖泊的退化现象和造成退化的主要原因，对湖泊生态恢复的目标和对策等问题也作了探讨。以武汉东湖为例，提出以水源保护地为主要功能的富营养浅水湖泊的恢复和整体优化对策，即恢复沉水植被、建立控制面源污染的半自然的人工湿地生态系统、优化水产养殖结构和恢复湖泊生物多样性等。对生物操纵在长江中下游富营养浅水湖泊恢复中的作用也进行了讨论

鱼腥藻7120质膜、类囊体膜和细胞壁的分离及特性分析

于1987－1989年对鱼腥藻7120质膜、类囊体膜和细胞壁进行分离纯化和基本的色素与蛋白质特性分析。采用机械性方法破碎细胞，以非连续蔗糖密度梯度离心分离纯化鱼腥藻7120营养细胞的质膜和类囊体膜，以TritonX－100处理方法获得细胞壁。色谱分析和电泳结果表明，其质膜、类囊体膜的色素和蛋白质特性与单细胞蓝藻相类似；Triton不溶细胞壁未发现可见光谱吸收，其两条主要蛋白带52KD和14KD均为精蛋白，并且14KD蛋白为肽聚糖层连结蛋白，细胞壁蛋白质全部对胰蛋白酶处理敏感，其上未发现“热修饰”蛋白。

西藏原生动物肉足虫一新种和两新亚种的描述

<正> 中国科学院青藏综合科学考察队于1966、1973—1976年在西藏全境采集了大量的水生生物标本,作者从中共观察到原生动物458种,其中肉足虫170种,纤毛虫288种。关于西藏原生动物的分类区系、地理分布、生态特点等已另有报道。本文仅对匣壳虫属Centropyxis中一新种、二新亚种进行描述。

池养鲤和草鱼血液学指标的研究

1.鲤鱼和草鱼的血液细胞包含红血球、淋巴球、单核球、嗜中性球、嗜酸性球及纺锤细胞。没有见到嗜碱性球。2.鲤鱼及草鱼的红血球数及血红蛋白量,在正常条件下,与水中溶氧量及成熟系数成十分显著的负相关。成熟雌鲤的红血球数(y)与溶氧量(x1)及成熟系数(x2)的迥归公式为:y=122+2.9x1-1.2x2。3.性腺发育程度及生殖活动强烈地影响鱼类血液有形成分。在生殖季节雄鱼的红血球数及血红蛋白量比雌鱼高,红血球沉降率则相反。白血球则在生殖季节及性腺退化吸收时比较活跃,而在非生殖季节两性之间无明显差异。4.发育成

Phytoremediation of triazophos by Canna indica Linn. in a hydroponic system

The phytoremediation of triazophos (O, O-diethyl-O-(1-phenyl-1, 2, 4-triazole-3-base) sulfur phosphate, TAP) by Canna indica Linn. in a hydroponic system was studied. After 21 d of exposure, the removal kinetic constant (K) of TAP was 0.0229-0.0339 d(-1) and the removal percentage of TAP was 41-55% in the plant system and the K and removal percentage of TAP were about 0.002 d(-1) and 1%, respectively, in darkness and disinfected control. However, the K and removal percentage of TAP were 0.006 d(-1) and approximately 11%, respectively, in the treatment with eluate from the media of constructed wetland. The contribution of plant to the remediation of TAP was 74% and C. indica played the most important role in the hydroponic system. Under the stress of TAP and without inorganic phosphorus nutrient, the activity of phosphatase in the plant system increased and phytodegradation was observed. The production and release of phosphatase is seen as the key mechanism for C. indica to degrade TAP. C. indica, which showed the potential of phytoremediation of TAP, and is commonly used in constructed wetland, so the technique of phytoremediation of TAP from contaminated water can be developed with the combination of constructed wetland.

Growth and energy budget of F-2 'all-fish' growth hormone gene transgenic common carp

The growth and energy budget for F-2 'all-fish' growth hormone gene transgenic common carp Cyprinus carpio of two body sizes were investigated at 29.2 degrees C for 21 days. Specific growth rate, feed intake, feed efficiency, digestibility coefficients of dry matter and protein, gross energy intake (I-E), and the proportion of I-E utilized for heat production (H-E) were significantly higher in the transgenics than in the controls. The proportion of I-E directed to waste products [faecal energy (F-E) and excretory energy loss (Z(E) + U-E) where Z(E) is through the gills and U-E through the kidney], and the proportion of metabolizable energy (M-E) for recovered energy (R-E) were significantly lower in the transgenics than in the controls. The average energy budget equation of transgenic fish was as follows: 100 I-E = 19.3 F-E + 6.0 (Z(E) + U-E) + 45.2 H-E + 29.5 R-E or 100 M-E = 60.5 H-E + 39.5 R-E. The average energy budget equation of the controls was: 100 I-E = 25.2 F-E + 7.4 (Z(E) + U-E) + 35.5 H-E + 31.9 R-E or 100 M-E = 52.7 H-E + 47.3 R-E. These findings indicate that the high growth rate of 'all-fish' transgenic common carp relative to their non-transgenic counterparts was due to their increased feed intake, reduced lose of waste productions and improved feed efficiency. The benefit of the increased energy intake by transgenic fish, however, was diminished by their increased metabolism.

Garra rotundinasus, a new species of cyprinid fish (Pisces : Teleostei) from the upper Irrawaddy River basin, China

Garra rotundinasus, a new cyprinid species from the upper Irrawaddy River basin in Yunnan, China, is herein described. It shares with G. gravelyi the presence of a snout having a poorly developed proboscis represented by a truncate area in front of the nostrils, a character distinguishing both from all other Southeast Asian and Chinese congeners. The two species are distinct in coloration, morphometric and meristic characters. The sympatrically occurring G. tengchongensis is very similar to G. rotundinasus in possessing 36-37 perforated lateral line scales, 5 or 6 scales between the anus and anal-fin origin, and an anterior position of the anus (anus to anal distance 32.1-51.8% of pelvic to anal distance). Garra rotundinasus can be differentiated from G. tengehongensis in having a more slender caudal peduncle, a larger disc and no dark central band on the dorsal fin.