检索结果-南通市图书馆

Acta Oceanologica Sinica 2011年第3期30卷 84-91页

作者： XU Zhaoli MA Zengling WU Yumei key and open laboratory of Marine and estuary fisheries （Ministry of Agriculture） East China Sea Fisheries Research Institute Chinese Academy of Fisheries Science Shanghai 200090 China

The sea surface temperature （SST） of the East China Sea （ECS） increased in the past decades, which may have a great impact on the ecosystem of the ECS, including the changes in planktonpopulation structure. In this paper, the changes in peaked abundance of Calanus sinicus in the Changjiang River （Yangtze River） estuary were compared between 1959 and 2002, based on the data collected from the seasonally oceanographic cruises and those performed in spring of 2005. It was much higher in spring compared with that in other seasons both in 1959 and 2002. Furthermore, in spring 2005, the time for occurrence and decrease of the peaked C. sinicus abundance advanced about one month, accompanying the increase in the sea surface water temperature （SST）. It peaked in June and decreased in July in 1959, however, in 2005, it peaked in May and attenuated sharply in early June. The earlier decrease of peaked C. sinicus abundance may further deteriorate the ecosystem in the Changjiang River estuary and north nearshore of the ECS.

关键词： Calanus sinicus East China Sea (ECS) temperature Changjiang River (Yangtze River) estuary zooplankton

Species composition,diversity and density of plagic Ostracoda in the East China Sea

在线全文

学校读者我要写书评

暂无评论

Acta Oceanologica Sinica 2007年第5期26卷 96-106页

作者： XU Zhaoli GU Xiaolian ZHANG Fengying key and open laboratory of Ministry of Agriculture for Marine and estuary fisheries East China Sea Fisheries Research Institute Chinese Academy of Fisheries Sciences Shanghai 200090 China

On the basis of seasonal investigations at 23°30′ - 33°00′N, 118°30′ - 128°00′E of the East China Sea during 1997 -2000, dynamics on the density and diversity of Ostracoda was discussed. Results showed that totally 26 species were identified. The Ostracoda diversity was opposite to the change of its density in most seasons which reflected an uneven assignment of Ostracoda density among its different species. The Ostracoda density was 0. 70 ind./m^3 in spring, 1.72 ind./m^3 in summer, 2.57 ind./m^3 in autumn and 0. 90 ind./m^3 in winter. Euconchoecia chierchiae in spring and winter, Euconchoecia maimai in summer and Cypridina dentata in autumn were main dominant species in each season. The Ostraeoda density did not show an obvious linear relationship with the hydrologic factors in summer and autumn, but was related to the surface salinity in spring and the surface temperature in winter. Its high density areas mainly distributed in the north offshore in all the seasons while in the south offshore in winter and in spring, and the south nearshore in summer and autumn, implied the zooplankton was a typical warm water animal, whose high density distribution in autumn were located in a similar position to Todarodes pacificus, Navodon Septentrionalis, Scomberjaponicus and other fishes in the sea, so as to be an important indicator for fishing ground. The main species dominating in Ostracoda now are different from the species twenty years ago probably attributes to global warming.

关键词： East China Sea Ostracoda zooplankton distribution diversity

Study on abundance variation of pteropods in the East China Sea

在线全文

学校读者我要写书评

暂无评论

Acta Oceanologica Sinica 2006年第1期25卷 100-107页

作者： XU Zhaoli LI Chunju key and open laboratory of Marine and estuary fisheries of Ministry of Agriculture of China East China Sea Fisheries Research Institute Chinese Academy of Fisheries Sciences Shanghai 200090 China

On the basis of the census in four seasons from 1997 to 2000 in the East China Sea （23°30＇-33°N, 118°0＇-128°E）, the horizontal distribution of pteropods, the seasonal variations of their abundance and dynamic mechanisms of these variations were approached with quantitative and qualitative methods. Results showed that the total abundance of pteropods varied clearly with the seasons in an order of decrease of autumn （108×10-2 ind./m^3）, summer （33×10^-2 ind./m^3）, winter（28×10^-2 ind./m^3） and spring （10×10^-2 ind./m^3）. Pteropods were not observed in the north nearshore of the East China Sea （29°30＇-33°N, 122°30＇-125°E）in winter and spring. In all seasons, the peteropod abundance was higher in the south than that in the north and higher in the offshore than that in the nearshore. The major species influencing the peteropod abundance were Creseis acicula in spring, Creseis virgula in summer, Desmopterus papilio in autumn and Limaeina trochiforrnis in winter. The variation of pteropod abundance showed a prominent linear correlation with the surface water temperature and 10 m water temperature, but no significant correlation with both the bottom water temperature and salinity. In summer, the high-abundance distribution area of pteropods was located in the place where the Taiwan Warm Current branched from the Kuroshio. Inautumn, thedistribution area with anabundance higher than 250×10^-2ind/m^3expanded northward along with the Taiwan Warm Current within the mixing area where the Changjiang freshwater, the Fujian-Zhejiang coastal water and the Huanghai Sea Cold Water met together. Water temperature and warm currents were the most important environmental factors that influenced the changes ofpteropod abundance in the East China Sea.

关键词： East China Sea ptcropods zooplankton abundance distribution regression contribution

Distribution pattern of pelagic amphipods and its affecting facors in the East China Sea

在线全文

学校读者我要写书评

暂无评论

Acta Oceanologica Sinica 2006年第5期25卷 112-119页

作者： XU Zhaoli JIANG Mei key and open laboratory of Marine and estuary fisheries of Ministry of Agriculture East China Sea Fisheries Research Insti-tute Chinese Academy of Fisheries Sciences Shanghai 200090 China

On the basis of data from four seasonal cruises in the East China Sea （23°30′-33°N, 118°30′-128°E） from 1997 to 2000, horizontal distribution of amphipods, seasonal variations of abundance and their dynamic mechanisms were approached with quantitative and qualitative methods. Results showed that the average value of amphipod abundance in autumn was 115× 10^-2 ind./m^3, the highest in four seasons. The second occurred in summer with a mean value of 44×10^-2 ind./m^3and the lowest occurred in spring with a mean of 10 × 10^-2 ind./m^3. Amphipods were hardly observed in the north nearshore （ 29° 30′- 33° N and 122°30′- 125°E） in winter and spring. In all seasons, except for the north of the sea in autumn and the south in summer, the abundance in the offshore area was higher than that nearshore. The major species influencing the amphipod abundance were Lestrigonus schizogeneios in spring, L. macrophthalmus and L schizogeneios in summer,L bengalensis and Hyperioides sibaginis in autumn and Gammarus sp. in winter. The amphiped abundance showed a prominent linear correlation with the surface water temperature, but no significant correlation with both other water temperatures and salinity in spring. It was found that water temperature and salinity were not significantly correlated with the variation of amphiped abundance in summer, autumn and winter. In addition, the amphiped abundance in all four seasons can be linearly correlated with the bottom water temperature. The highest abundance area was located in the mixture waters near the side of warm water current in summer. Peak of amphiped abundance in autumn, not in summer told a temporal process for amphipeds to develop their populations. The continuance of warm current was beneficial to the development of amphipod abundance from summer to autumn. Amphipeds are kinds of very important diets for fishes in the offshore East China Sea.

关键词： East China Sea zooplankton pelagic amphipods abundance distribution

Distribution of Dominant Zooplankton Species Along a Latitudinal Gradient in China Sea During Spring

在线全文

学校读者我要写书评

暂无评论

Journal of Ocean University of China 2016年第3期15卷 502-508页

作者： XU Jiayi XU Zhaoli GAO Qian key and open laboratory of Marine and estuary fisheries of Ministry of Agriculture of China East China Sea Fisheries Research Institute Chinese Academy of Fisheries Sciences

Dominant species of zooplankton community vary with latitude. Though China possesses a vast coastal area in northwestern Pacific, studies on the latitudinal dominant species gradient are rare. We collected zooplankton samples from Haizhou Bay(34.56?–35.19?N, 119.51?–120.30?E), Yueqing Bay(28.14?–28.38?N, 121.10?–121.21?E) and Dongshan Bay(23.65?–23.90?N, 117.45?–117.60?E) in May 2012 and May 2013 to preliminarily characterize the latitudinal dominant species distribution. All the samples were collected vertically using a 0.505 mm mesh plankton net with 0.8 m in mouth diameter from bottom to surface. Calanus sinicus, Aidanosagitta crassa, Labidocera euchaeta, Zonosagitta nagae, Acartia pacifica and Paracalanus parvus were found to be dominant. C. sinicus was the most dominant species and the unique one occurred in all three bays. With latitude decreasing, both the abundance and proportion of C. sinicus declined sharply. Cluster analysis showed that the 6 dominant species could be divided into 3 groups, based on their occurrences in the three bays. Our results suggested that the distribution of dominant species along the coast of China has a significant latitudinal gradient. C. sinicus which widely distributes in the coastal water of the northwestern Pacific can well adapt to the temperature at different latitudes. The high abundance in Haizhou Bay indicated that C. sinicus was an exemplary warm-temperate species, and more commonly occurs in the north of China seas. The ecological characteristics of dominant species change from warm-temperate type in high-latitudinal bays to warm water type in low-latitudinal bays.

关键词： zooplankton dominant species bay latitude

Alkaline phosphatase activity in the phosphorus-limited southern Chinese coastal waters

在线全文

学校读者我要写书评

暂无评论

Journal of Environmental Sciences 2019年第12期31卷 38-49页

作者： Wei Kang Zhao-Hui Wang Lei LiuXin Guo key and open laboratory of marina and estuary fisheries Ministry of Agriculture of ChinaEast China Sea Fisheries Research InstituteChinese Academy of Fishery SciencesShanghai 200090China College of Life Science and Technology Key Laboratory of Eutrophication and Red Tide Prevention of Guangdong Higher Education InstitutesJinan UniversityGuangzhou 510632China

Three fractions of alkaline phosphatase activity(APA),including phytoplankton APA(phyto-APA),bacterial APA(bact-APA),and free-APA,were examined in the sea surface microlayer(SML)and the subsurface water(SSW)from Daya Bay,Guishan Island,and Guanghai Bay of southern *** between APA and environmental parameters were *** growth of phytoplankton was significantly limited by dissolved inorganic phosphorus(DIP)in the three sea areas,especially in Daya *** ranged between 1.41 and 35.26 nmol/L/hr,and the highest value was found in Daya *** increased APA in Daya Bay was the result of the increase of phytoplankton biomass and the response of phytoplankton to P ***-APA was the main contributor in Daya Bay,while phyto-and free-APA co-dominated in Guishan Island and Guanghai ***-,phyto-,and total-APA showed a significant inverse power function relationship with DIP,and 0.2μmol/L was the threshold for DIP on particulates and *** correlation analysis suggested that DIP limitation together with high N levels enhanced *** water temperature and freshwater input accelerated APA as *** component analysis clearly separated samples from the three sea areas,as well as from the SML and the SSW,which indicated the differences in environmental parameters and APA *** results highlight the influence of phosphorus limitation and environmental parameters on APA.

关键词： Alkaline phosphatase Phosphorus limitation Southern Chinese coast Phytoplankton The sea surface microlayer Daya Bay

The relation between distribution of zooplankton and salinity in the Changjiang estuary

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Oceanology and Limnology 2008年第2期26卷 178-185页

作者：高倩徐兆礼庄平 Institute of Oceanology Chinese Academy of Sciences key and open laboratory of Marine and estuary fisheries Ministry of Agriculture of ChinaEast China Sea Fisheries Research InstituteChinese Academy of Fisheries Sciences

Seasonal netzplankton samples from stations in the Changjiang (Yangtze River) estuary were collected from May, 2004 to February, 2005. The dominant species and their contribution to the total zooplankton abundance were determined. Moreover, the relationship between the salinity and abundance was studied with stepwise linear regression. During the whole year, the salinity was positively correlated with the abundance, while the temperature, negatively. Linear regression analysis showed also a high positive correlation with salinity for total abundance in August and November, while in February and May, no obvious relations were found. The most abundant community was composed of neritic and brackish-water species. The North Passage (NP) (salinity estuary.

关键词： salinity Changjiang (Yangtze River) estuary zooplankton abundance dominant species

Analysis on the indicator species and ecological groups of pelagic ostracods in the East China Sea

在线全文

学校读者我要写书评

暂无评论

Acta Oceanologica Sinica 2008年第6期27卷 83-93页

作者： XU Zhaoli key and open laboratory of Marine and estuary fisheries of Ministry of Agriculture East China Sea Fisheries Research Insti-tute Chinese Academy of Fisheries Sciences Shanghai 200090 China

Ecological adaptation and ecological groups of pelagic ostracods were examined in the East China Sea （23°30′-33°00′N, 118°30′ -128°00′E）, in relation to temperature and salinity. The data were collected in four surveys conducted from 1997 to 2000. The density, yield density, or negative exponent models were used to determine the optimal temperature and salinity of water for the thriving growth of pelagic ostracods. Thereafter, ecological groups and potential distribution patterns of pelagic ostracods were determined based on the predicted parameters such as optimal temperature and salinity, consulting the geographic distribution. The analytical results indicate that, among the numerical dominant pelagic ostracods in the East China Sea （ECS）, Euconchoecia aculeata, E. elongata, E. chierchiae, E. maimai, and Cypridina dentata, etc. are offshore subtropical water species. These species are widely distributed in the area, and they can be brought by the warm current to north offshore during spring and winter. The predicated optimal temperature （OT） and optimal salinity （OS） for Paraconchoecia decipiens, P. echinata, P. spini- fera, P. oblonga, Conchoecia magna and Porroeciaporrecta are all greater than 25℃ and 34 separately. These species are mainly distributed in the waters of the Kuroshio, the Taiwan Warm Current, and the Taiwan Strait, and therefore are designated as ocean- ic tropical water species. On the other hand, Pseudoconchoecia concerttrica is considered as offshore subtropical water species based on its geographical distribution although its OT is 19℃. The other species, though their OSs are approximately 34 and with OTs ranging from 20° to 25℃, are considered as offshore subtropical water species because they were found to be widely distributed from the South China Sea to the East China Sea.

关键词： zooplankton pelagic ostracods ecotype temperature salinity East China Sea indicator species

Effect of global warming on the distribution of Lucifer intermedius and ***(Decapoda) in the Changjiang estuary

在线全文

学校读者我要写书评

暂无评论

Progress in Natural Science:Materials International 2009年第10期19卷 1389-1395页

作者： Zengling Ma,Zhaoli Xu,Jin Zhou key and open laboratory of Marine and estuary fisheries,Ministry of Agriculture of China,East China Sea fisheries Research Institute,Chinese Academy of fisheries Sciences,Shanghai 200090,China [a]key and open laboratory of Marine and estuary fisheries Ministry of Agriculture of China East China Sea Fisheries Research Institute Chinese Academy of Fisheries Sciences Shanghai 200090 China

We conducted an oceanographic censusin 1959,2002,and 2005 to evaluate changes in the temporo-spatial distribution and abundance of Lucifer intermedius and *** in the Changjiang *** general,the abundance and frequency of occurrence(OF) for these two species were highest during the *** measured a significant change in the abundance and OF between *** abundance and OF of *** increased from 3.7 individuals m 3 and 66.67%,respectively,in 1959,to 8.93 individuals m 3 and 85.19%,in *** 1959,*** was only found during the summer(abundance:0.01 individuals m 3,OF:3.70%).However,in 2002,this species was collected during all seasons except the ***,abundance(0.47 individuals m 3) and OF(25.93%) were higher in 2002 than in *** increases in abundance and OF were measured during cruises during the spring of *** hypothesize that global warmingis responsible for theincrease *** *** thenorthward *** Changjiang *** our results,monitoring of both species may be useful to evaluate the effects of climate change.

关键词： Zooplankton Lucifer intermedius Lucifer hanseni Global warming Changjiang estuary

Identification of a marine woloszynskioid dinoflagellate Biecheleriopsis adriatica and germination of its cysts from southern Chinese coasts

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Journal of Environmental Sciences 2018年第4期30卷 246-254页

作者： Wei Kang Zhao-Hui Wang key and open laboratory of marina and estuary fisheries Ministry of Agriculture of China East China Sea Fisheries Research InstituteChinese Academy of Fishery Sciences College of Life Science and Technology Key Laboratory of Eutrophication and Red Tide Prevention of Guangdong Higher Education InstitutesJinan University Engineering Research Center of Tropical and Subtropical Aquatic Ecological Engineering Ministry of Education

A strain of small-sized dinoflagellates, isolated from the culture of sediment incubation collected from the coastal areas in southern China, has been identified under microscopical observation and r DNA sequence. Surface sediments from two sea areas in the southern Chinese coastal waters were incubated for 20 and 40 days, and germinated vegetative cells were observed. The cells were identified as species in the Suessiaceae based on the morphological characteristics, ultrastructural features of the cell, as well as its swimming behavior. The studied strain clusters into a well-supported clade together with six sequences of Biecheleriopsis adriatica in the phylogenetic tree based on the large subunit（LSU） rDNA sequence. Therefore, the strain has been identified as B. adriatica based on morphological observation and phylogenetic analysis. B. adriatica was the dominant dinoflagellate species in the germinated phytoplankton community from both sea areas,which contributed 50%–83% to the total germinated dinoflagellates averagely. However,B. adriatica has not been reported in previous phytoplankton surveys, and was probably ignored or misidentified due to its small size and thin wall. The frequent and abundant occurrence of B. adriatica in the germinated phytoplankton community of many sea areas of the southern Chinese coastal waters suggests its wide and abundant distribution in these sea areas.

关键词： Biecheleriopsis adriatica Cyst Germination Phylogeny Southern China