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Truth and consequences:the bioinvasion of the Mediterranean Sea

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Integrative Zoology 2012年第3期7卷 299-311页

作者： Bella Sarah GALIL National institute of Oceanography Israel Oceanographic and Limnological ResearchHaifaIsrael

Over 660 alien marine multicellular species have been recorded in the Mediterranean Sea,with many establishing viable populations and subsequently dispersing from their points of entry.A brief overview is presented of the current state of knowledge of bioinvasions in the Mediterranean Sea,with particular attention paid to gelatinous invasive species.A database of alien species records was used to characterize their identity,pattern of expansion and native region,and to discuss the relative importance of different taxa and vectors in the various regions of the *** temporal and spatial spread of 4 alien scyphozoans and 2 alien ctenophores is *** thermophilic species constitute the majority of Mediterranean aliens,Erythrean aliens are predominant in the east,with shipping and mariculture being mainly responsible for introductions in the *** propagule pressure driving the Erythrean invasion is powerful in the establishment and spread of alien species in the eastern *** implications of the enlargement of the Suez Canal,reflecting patterns in global trade and economy,are briefly ***,as alien species inventories play a pivotal role in informing regional policy and management decisions and identifying resource priorities,the scientific community is called upon to pay particular attention to their accuracy and veracity.

关键词： alien gelatinous inventories Mediterranean Sea trends vectors

Geolocator study reveals east African migration route of Central European Common Terns

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Avian research 2020年第1期11卷 34-44页

作者： Jelena Kralj Milos Martinovic Luka Jurinovic Peter Szinai Szandra Suto Balint Preiszner institute of Ornithology Croatian Academy of Sciences and ArtsGunduliceva 2410000 ZagrebCroatia Poultry Centre Croatian Veterinary InstituteHeinzelova 5510000 ZagrebCroatia balaton-felvideki National Park Directorate Csopak 8229Hungary Department of Limnology University of PannoniaVeszprem 8200Hungary balaton limnological institute MTA Centre for Ecological ResearchTihany 8237Hungary

Background: The majority of European Common Terns(Sterna hirundo) migrate south along the western coast of Europe and Africa, while birds from eastern regions are known to cross the Mediterranean Sea from east to west or migrate along the eastern African coast. The migration route of north European terns wintering along the coast of western Africa was already described using geolocator data, while knowledge about movements of the European inland populations is based only on relatively scarce recoveries of ringed ***: We used light-level geolocators in inland Common Tern colonies in Hungary and Croatia to study their migration route and to identify wintering areas along with stopover sites. Results revealed by geolocators were compared with recoveries of ringed ***: All tracked birds used the east African migration route with autumn stopovers at Lower Nile and in the southern part of the Red Sea, and short spring stopover in Israel. Terns wintered along Kenyan coasts and in the southern Mozambique Channel. Autumn migration lasted four times longer than spring ***: This is the first geolocator study that describes the east African migration route of the Common Tern. Important stopover sites were identified. More studies of inland populations are needed to better elucidate tern winter movements.

关键词： Inland population Light-level geolocators Mozambique Channel Red Sea Sterna hirundo Stopover sites Wintering area

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Quantifying the actual sediment load flux into Lake Baikal:A case study of the main tributary——The Selenga River(Russia)

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International Journal of Sediment research 2022年第2期37卷 238-247页

作者： Tatiana Potemkina Vladimir Potemkin limnological institute of the Siberian Branch of Russian Academy of Sciences

The significant reduction of sediment load flux into Lake Baikal from its main tributary-the Selenga River began in the mid-1970 s,and can be explained by climate change and socio-economic *** analysis was done of changes in hydro-meteorological parameters(water discharge,sediment load,air temperature,and precipitation) and their tendencies over periods of 1946-1975(baseline) and1976-2017(warming).Changes in natural processes and human activity were negligible during the baseline *** the warming period,against the background of an increase in temperature,the water discharge had a slight decreasing trend(-13%) whereas the sediment load has significantly decreased(-53%) these are consist with the precipitation change(-9.4%).Analysis of hydro-climatic data using statistical methods showed that in the warming period the greatest reduction in river sediment runoff occurred in the interval *** this period the sediment load was 768 × 10～3 t/yr,which is less than the average value during the warming period-1048 × 10～3 t/*** sedimentation in the Selenga River delta,the actual sediment load flux from the Selenga River into Lake Baikal amounted to 515 × 10～3 t/yr,which is three times less than the average multiyear value 1535 × 10～3 t/yr for observation period(1946-2017).

关键词： Sediment load Climate change Human activity Selenga River Lake Baikal

Water Quality Assessment, Trophic Classification and Water Resources Management

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Journal of Water Resource and Protection 2010年第10期2卷 907-915页

作者： Arkadi Parparov Israel Oceanographic and limnological research Kinneret Limnological Laboratory Migdal Israel

Quantification of water quality (WQ) is an integral part of scientifically based water resources management. The main objective of this study was comparative analysis of two approaches applied for quantitative assessment of WQ: the trophic level index (TLI) and the Delphi method (DM). We analyzed the following features of these conceptually different approaches: A. similarity of estimates of lake WQ;B. sensitivity to indicating disturbances in the aquatic ecosystem structure and functioning;C. capacity to reflect the impact of major management measures on the quality of water resources. We compared the DM and TLI based on results from a series of lakes covering varying productivity levels, mixing regimes and climatic zones. We assumed that the conservation of aquatic ecosystem in some predefined, “reference”, state is a major objective of sustainable water resources management in the study lakes. The comparison between the two approaches was quantified as a relationship between the DM ranks and respective TLI values. We show that being a classification system, the TLI does not account for specific characteristics of aquatic ecosystems and the array of different potential uses of the water resource. It indirectly assumes that oligotrophication is identical to WQ improvement, and reduction of economic activity within the lake catchment area is the most effective way to improve WQ. WQ assessed with the TLI is more suitable for needs of natural water resources management if eutrophication is a major threat. The DM allows accounting for several water resource uses and therefore it may serve as a more robust and comprehensive tool for WQ quantification and thus for sustainable water resources management.

关键词： Water Quality Trophic Level Index Delphi Method Sustainable Management Lakes

Exploring the topographical pattern beneath the water surface: Global bathymetric volume-area-height curves(BVAH) of inland surface water bodies

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Geodesy and Geodynamics 2024年第6期15卷 602-615页

作者： Siyu Zhu Wei Wan Guoqing Zhang Zhaoyuan Yao Yue Xu Baojian Liu Zhizhou Guo Zengliang Luo Wentao Xiong Rui Ji Qingwen Ji Yu He Feng Lv Weizhen Fang Xiao Tan Qian Huang Lei Xiao Huan Li institute of Remote Sensing and Geographic Information System School of Earth and Space SciencesPeking UniversityBeijing 100871China School of Civil Engineering and Environmental Science University of OklahomaNormanOklahomaUSA State Key Laboratory of Tibetan Plateau Earth System Environment and Resources(TPESER)Institute of Tibetan Plateau ResearchChinese Academy of SciencesBeijing 100101China School of Soil and Water Conservation Bejing Forestry UniversityBeijing 100871China Hubei Key Laboratory of Regional Ecology and Environmental Change School of Geography and Information EngineeringChina University of GeosciencesWuhan 430074China HUN-REN balaton limnological research institute TihanyHungary

Global inland surface water bodies such as lakes and reservoirs,important components of the hydrosphere and ecosphere,are increasingly affected by climate *** bathymetric volume-areaheight (BVAH) curves for global inland surface water bodies can enhance our understanding of their topography and climate ***,accurately quantifying the topographic patterns of these water bodies remains challenging due to the difficulties in collecting comprehensive bathymetric ***,we collected and processed over 2000 bathymetric maps of global water bodies from over 50 different data sources and then developed the BVAH ***,the BVAH hydrological curves of 16671 global inland surface water bodies (larger than 10 km~2) were *** results include but are not limited to (1) For most targeted water bodies,area (A) and volume (V) exhibit significant power function relationships with surface heights (H),with optimal power values quantified as 1.42 for A and 2.42 for V.(2) The BVAH model outperforms GLOBathy in estimating area and volume changes,achieving higher correlation coefficients (CC) of approximately 0.962 for the area and 0.991 for volume,and demonstrating lower percentages of root mean squared errors (PRMSE) around 10.9% for the area and 4.8% for volume.(3) In the case study of the Xizang Plateau and various large global reservoirs,the BVAH curve database can capture dynamic volume *** a unified simulation of the bathymetric topographical patterns,our bathymetric dataset and corresponding BVAH curve database have great potential to contribute to effective water resource management and ecological conservation efforts worldwide.

关键词： Global inland water bodies Hydrological curves Bathymetric map Climate change

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Effect of ecological factors on the distribution of microorganisms in regosols(steppe of Priol'khonie,Siberia)

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Acta Geologica Sinica(English Edition) 2014年第S1期88卷 188-190页

作者： Olga LOPATOVSKAYA Anna SEREDKINA Natalia BELKOVA Irkutsk State University limnological institute of the Siberian Branch of the Russian Academy of Sciences

1 Introduction Regosol in Eastern Siberia is intrazonal *** Priolkhonie region it occurs among chestnut soils,salt marshes and *** are small information about Tagotskij hydrolaccolith in the research articles of geolo... 详细信息

关键词： regosol Priolkhonie soil microbial community heterotrophic microorganisms cultivation.

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Screening potential genotoxic effect of aquatic plant extracts using the mussel micronucleus test

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Journal of Coastal Life Medicine 2016年第1期 36-38页

作者： Bettina Eck-Varanka Nora Kováts Katalin Hubai Gábor Paulovits Árpád Ferincz Eszter Horváth Department of Limnology University of PannoniaVeszprémHungary balaton limnological institute Centre for Ecological ResearchHungarian Academy of SciencesBudapestHungary Department of Aquaculture Szent István UniversityGödöllőHungary

Objective:To assess the genotoxic potential of selected aquatic macrophytes:Ceratophyllum demersum L.(hornwort,family Ceratophyllaceae),Typha angustifolia L.(narrowleaf cattail,family Typhaceae),Stratiotes aloides L.(water soldier,family Butomaceae),and Oenanthe aquatica(L.)Poir.(water dropwort,family Umbelliferae).Methods:For genotoxicity assessment,the mussel micronucleus test was *** frequency was determined from the haemolymph of Unio pictorum L.(painter’s mussel).In parallel,total and hydrolisable tannin contents were ***:All plant extracts elucidated significant mutagenic *** correlation was determined between tannin content and mutagenic ***:The significant correlation between genotoxicity as expressed by micronucleus frequency and tannin content(both total and hydrolisable tannins)indicate that tannin is amongst the main compounds being responsible for the genotoxic *** might be suggested that genotoxic capacity of these plants elucidate a real ecological effect in the ecosystem.

关键词： Genotoxicity Mussel micronucleus test Unio pictorum Tannin

The floating mid water coral nursey as a key component in active coral reef restoration

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The floating mid water coral nursey as a key component in ac...

Eco-legal and economic aspects of developing Malomorsky fishing area of Lake Baikal

第三届现代海洋（淡水）牧场学术研讨会

作者： Shafir Shai Rinkevich Baruch Israel Oceanography ＆ limnological research National institute of Oceanography Oranim Academic College of Education

Coral reefs around the world are declining due to global and local detractive drivers. To ameliorate this failing, two common approaches are practices, the traditional conservation acts and active restoration measures. One of the most developed active restoration measures is the coral reef gardening concept, aiming to actively restore degraded coral reefs by the employment of two steps;first is the mariculture of as many numbers of coral fragments in coral nurseries and as they grow to the size of large coral colonies, the second is the transplantation of the farmed coral colonies into denuded reefs. The nursery phase has major roles in the survivorship and health of the growing coral colonies from fragments. During the last decade. the floating mid water coral nursery has further been developed to an ecological engineering tool manifesting the art of coral mariculture into mass production aquaculture, a modern marine ranching. Several architypes of floating mid water nursery were developed, each adapted to specific needs but altogether, they present the same advantages for the growing coral colonies such as reduced sedimentation, improved water flow around the cultured corals with enhanced oxygen and nutrients supply. The talk will present the coral reef gardening concept, the main types of mid water coral nurseries, including advantages in this growing field of active coral reef restoration, and its prospective.

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Aquaculture and Fisheries 2021年第5期6卷 530-534页

作者： Alexander P.Sukhodolov Andrei P.Fedotov Mikhail M.Makarov Alina V.Kolesnikova Yakov A.Sukhodolov Polina G.Sorokina Baikal State University IrkutskRussia limnological institute of the Siberian Branch of the Russian Academy of Sciences IrkutskRussia institute of Economic Studies of the Far East Branch of the Russian Academy of Sciences KhabarovskRussia

Lake Baikal is the largest freshwater reservoir of our planet and a unique natural site included in the UNESCO World Heritage ***,Baikal is not only Russia’s largest freshwater fishing ***-scale commercial fishing started here at the beginning of the 19th century and,with small breaks caused by bans imposed on commercial fishing due to depletion of valuable commercial fish species stock,continued until October 2017,when once again restrictions in the fishing industry were *** of the reasons for this was the growth of illegal,unreported and unregulated(IUU)fishing(hereinafter also referred to as“illegal fishing”)which led to depletion of the stock of ***,these restrictions neither eliminated extensive illegal fishing,nor solved the problem of rapid fish stock rebuilding in the unique *** methods of mathematical analysis and modeling this article examines factors facilitating breach of law in the fishing industry and illegal fishing for Baikal *** article provides a brief characteristic of the Baikal oldest Malomorsky fishing area as well as an eco-economic assessment of the possibility to rebuild the fish stock within this water zone taking into account the increasing tourist flow in the Baikal region.

关键词： Baikal Baikal natural territory Baikal omul Maloye more Mathematical modeling