大鹏湾盐田水域反曲原甲藻数量的时空变化特点

对１９９０年３月３０日－５月５日广东大鹏湾盐田水域反曲原甲藻Ｐｒｏｒｏｃｅｎｔｒｕｉｎｓｉｇ－ｍｏｉｄｅｓＢｏｈｍ进行研究。详细分析了反曲原甲藻数量的时空变化及分布特点。多元回归分析表明：影响反曲原甲藻数量变化的环境因子，表层主要是亚硝酸氮，而底层仅与盐度相关。４月２０日盐田水域发生赤潮，经水样分析，发现表层水体中反由原甲藻数量很高（大于３００个·ｍｌ（－１）），占浮游植物数量的８６％以上。由此说明，反曲原甲藻是此次赤潮的原因种之一。本种通过扫描电子显微镜观察和分析所确认，并作了形态特征描述。     

钱塘江河口尖山河段整治规划线的方案试验研究

根据实测资料分析和二维数值计算 ,借助实体模型 ,通过定床与动床试验 ,比较分析了两种整治规划线方案。结果表明 ,推荐方案对削弱尖山以上江道的潮势 ,改善萧绍平原的排涝条件 ,效果显著     

长江口北支中全新世以来环境演变变异事件及影响因素

对崇明岛北侧的永隆沙钻孔进行了系统的采样和粒度、微体古生物、环境磁学以及C^14测年等分析，大致恢复了长江口北支古地理环境演变的过程。通过环境磁学和微体古生物分析，揭示了在2080～2000、700～625aBP这两段历史时期，长江口北支表现为河口沙坝亚环境和河口河槽亚环境。这两次环境变异事件记录了长江主泓南北迁移的事实。长江河道的变迁受到诸多因素的影响，科氏力的作用是长江口不断南偏这一发展总趋势的主要原因，海平面上升与气候的变化则是长江主泓南北摆动的主要影响因素。     

烟台四十里湾海域红色裸甲藻赤潮发展过程及其成因

对1998年8月中旬至9月中旬烟台四十里湾发生的大规模赤潮进行调查研究。结果表明，此次赤潮发生面积约为100km^2，其原因种为红色裸甲藻Gymnodinium sanguineum,密度高达1560ind/ml，是我国首次记录的由该种生物引起的规模赤潮。大量衰亡赤潮生物的分解消耗水体的溶解氧，引起下层水体严重缺氧，导致养殖的扇贝大批死亡。赤潮的成因主要是大量陆源有机物、营养盐类的排入和大规模贝类筏式养殖的自身污染，为赤潮生物的暴发性增殖提供丰富的物质基础；适宜的水文气象条件亦为赤潮的发生提供良好的物理环境。     

基于地物光谱的赤潮优势种识别研究

利用2001年获取的不同优势种赤潮水体的现场光谱数据，处理得到了不同优势种赤潮水体的遥感反射率光谱曲线；在此基础上，发展了基于光谱角度制图法(Spectral Angle Mapping，SAM)和互相关光谱匹配法(Cross Correlogram Spectral Mapping，CCSM)的赤潮优势种识别算法。数据实验结果表明，上述两种方法对于实现基于光谱数据的赤潮优势种识别是基本有效的，且CCSM方法的识别结果略优于SAM方法。进一步提高上述方法的适用性在于大量获取不同优势种赤潮的光谱数据并建立赤潮光谱数据库。     

Macrobenthos of Kakinada Bay in the Godavari delta, East coast of India: comparing decadal changes

A one-year study (1995–1996) on the macrobenthos over a spread of (37) hydrographically differing GPS-fixed sites in Kakinada Bay (mean salinity 27.16±0.4) and adjacent mangrove channels (14.78±0.55) in the Godavari delta, one of India's largest estuarine systems, revealed a great preponderance of benthic life. There were 11 diverse taxa represented by 95 species collected through several (303) grab and dredge hauls. Based on Bray-Curtis similarity through hierarchical clustering implemented in PRIMER, it was possible to distinguish the benthos into four assemblages each of which represented sites in the Central and North bay (Paphia textrix – Typhlocarcinus sp. Assemblage), South-East bay (Protankyra similis – Paphia malabarica Assemblage), Mangrove Outlets (Cerithidea cingulata Assemblage) and Mangrove channels (Diopatra neapolitana Assemblage). Benthos densities (mean nos. dredge haul⁻¹) were highest (299 individuals) at sites close to mangrove outlets. Species diversity (Margalef, d; Shannon-Wiener, H′) was low in general (d 1.244 to 2.251 and H′ 0.038 to 1.502). Sediments were mostly clayey-silt in nature except in southeast bay where they are silt-sand. Organic matter (mean) was at or near 1.3%. The observations have revealed marked changes in benthic community structure relative to an earlier investigation held in 1958–1963 in this area. Over the years, species such as Turritella duplicata, Tonna dolium and Placuna placenta found in considerable numbers previously have dwindled. Anomia, Bursa and Atrina and echinoderms, Astropecten indica, Echinodiscus auritus and Temnopleurus toreumaticus and the brachiopod, Lingula sp. of common occurrence in early 60s are absent altogether attributable to long-term natural trends during the intervening years and/or events accompanying human impingement (e.g. industrial and urban growth, port expansion measures, aquaculture, mangrove denudation etc.). Despite such large-scale alterations in benthos community structure, there were no significant changes in “biodiversity” measured through Average Taxonomic Distinctness (AvTD) and Variation in Taxonomic Distinctness (VarTD). The investigation revealed that AvTD (Δ⁺) and VarTD (Λ⁺) for previous years and the present study remained well within the 95% confidence funnel implying taxonomic stability. It was found that species, which had replaced the earlier forms, were drawn from comparable (Linnean) hierarchy i.e. same phylum/class.     

Spatial variation in elemental composition of otoliths of three species of fish (family Sparidae)

Determining the nursery habitat of fishes that have moved from estuarine nursery habitats is difficult. The elemental fingerprints of otoliths of three species of sparids were determined to investigate their utility as a natural tag of the nursery habitat. Juvenile Pagrus auratus (snapper), Rhabdosargus sarba (tarwhine) and Acanthopagrus australis (bream) were collected from two sites in each of 15, six and three estuaries, respectively, and their otoliths analysed by solution-based inductively coupled plasma-mass spectrometry. Significant differences in otolith chemistry were found for all three species of juveniles collected from different estuaries. The same patterns among estuaries were not seen for all species, although it was not possible to sample the same sites within an estuary for all species. For bream, significant differences in otolith chemistry were found among all three estuaries, whereas for tarwhine the six estuaries were separated into three groups. For snapper, a number of estuaries could be separated, but there was some overlap for other estuaries. All three species were collected from the same site within one estuary and their otoliths analysed. Significant differences were found among species, but the implication of this finding remains unclear as the three species show differences in microhabitat use and may also differ in age. Because the elemental fingerprints of juveniles vary among estuaries or groups of estuaries, the nursery or recruitment estuary of adult fish could now be determined by analysing the juvenile region of adult otoliths. Thus, connectivity between estuaries and open coastal populations could be determined. Such information will have major implications for fisheries management because it will provide information on the distance that fish have moved from their recruitment estuary and the number of estuaries that contribute to each adult population.     

赤潮监测和预报的构想

在对赤潮监测要素和方法进行分析的基础上，构思了几各监测和预报赤潮的方式，并建议以水质浮标和剖面监测系统为主要方式开展研制工作。     

A method to measure suspended load transports in estuaries

It is shown that an optical beam-attenuance meter integrated into an Aanderaa current meter is a suitable device for measuring time series of fluxes of suspended material in turbid estuarine water. Some typical applications are presented.     

湛江港浮游植物与赤潮植物的初步研究

于1987年8月在湛江港设13个点采样。鉴定表明，共有浮游植物37属94种和变种；优势种类有中肋骨条藻、日本星杆藻、佛氏海毛藻等。湛江港浮游植物密度较高，港内外平均达1．3×104cell／L和7．3×105cell／L。经单项营养指数和营养状态结合指数分析表明，除两个点无机氮浓度略超标外，所有站位均未达到富营养化水平。调查期间，共发现赤潮生物31种，其中主要有中肋骨条藻、日本星杯藻、佛氏海毛藻、尖刺菱形藻和夜光藻等，中肋骨条漠和日本星杆藻曾形成水华。