Zooplankton of the open Baltic: Extended Atlas - IOW

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Cnidaria, Ctenophora, Chaetognatha, Mysidacea, Euphausiacea, Decapoda, Polychaeta and others) (Lenz, 2000). The sub-division of zooplankton into micro- and mesozooplankton size classes used in this book is (to a certain extent) not a traditional one: we consider all rotifers as mesozooplankton, applying the term “microzooplankton” to planktonic ciliates. This is another conventionality determined by the fact that the authors want to draw special attention of the readers to the chapter “Ciliates of the Baltic Sea”. It is the first attempt to provide updated illustrated information on biodiversity of these protists in the Baltic ecosystem. Unlike the dominant mesozooplankters, ciliates are usually not considered in the regional monitoring programs; nevertheless, they are good indicators of water quality. They play an important role in the zooplankton communities, and contribute significantly to energy fluxes (through the microbial loop, for example) and water purification in the Baltic Sea ecosystem. The chapter provides a checklist of 811 species of planktonic and benthic ciliates (which may also be numerous in plankton) that inhabit both open and coastal waters of the Baltic Sea. This part of the atlas is illustrated by the original photographs of live ciliates collected in the Gulf of Finland, eastern Baltic Sea and cultured in the laboratory for the purpose of precise species identification. Aquatic ecologists know that species identification of zooplankton organisms is a tedious and time-consuming work which requires certain taxonomic skills, understanding of the general principles of species identification, and knowledge of taxonomically-important morphological characteristics of zooplankters from different groups. On a regular basis, species determination should be performed with the help of taxonomic identification keys. Additionally, illustrated atlas books with drawings and photos of live and preserved planktonic organisms can be also helpful; however, they can not substitute the classical taxonomic guides. Nowadays, it is a common problem worldwide that professional taxonomists with the deep knowledge of the systematic of different groups of aquatic invertebrates become extinct (Costello et al., 2006). For the Baltic Sea region, taxonomic training of the professional staff in hydrobiological laboratories storing their results in joint databases is of exceptional importance for harmonising the methods and improving the skills necessary to identify the zooplankton species. These training courses for Baltic zooplankton identification are essential for acquiring and maintaining the quality assurance of the laboratories participating in the joint international monitoring programmes in the Baltic Sea region. Unfortunately, such taxonomic training courses are rare so far. 12
The authors hope that the new, extended zooplankton atlas of the open Baltic Sea together with the previously published atlas books on the Baltic estuarine and open-water zooplankton will contribute to the general knowledge of marine biodiversity in the region and make the species identification of zooplankton more easy. The atlas is recommended for university students, zoologists and aquatic ecologists who are investigating and monitoring the pelagic ecosystem of the Baltic Sea. 13
Page 1 and 2: LEIBNIZ-INSTITUT FÜR OSTSEEFORSCHU
Page 3: Meereswissenschaftliche Berichte MA
Page 7 and 8: CONTENTS Page Preface…………
Page 9 and 10: PREFACE This volume is the Second E
Page 11 and 12: 1. INTRODUCTION Since the last glac
Page 13: eautifully designed network of flow
Page 18 and 19: B (kg C / km²) 1000 100 10 1 0.1 P
Page 20 and 21: Table 2.1. Degree of dominance (fro
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No Taxa BP 1 WBS 2 NBS 3 SBS 4 EBS
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4.3. Photo plates: ciliates of the
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5. MESO- AND MACROZOOPLANKTON OF TH
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Figure 5.1.2. Typical hydroid medus
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leidyi was found in the entire wate
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Polymorphism is a common phenomenon
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Cladocera (Plates 5.3.6 - 5.3.10) T
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Figure 5.1.7. Daphnia, schematic, l
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Figure 5.1.9. How to measure Cladoc
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filter feeders. Cyclopoida are also
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Figure 5.1.12. Morphology of a fema
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Figure 5.1.14. Development of copep
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Figure 5.1.16. Sagitta bipunctata,
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Figure 5.1.17. Appendicularia, sche
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Figure 5.1.19. Larvae of Polychaeta
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5.2. Checklist of meso- and macrozo
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1 BP, Baltic Proper: after Ackefors
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5.3. Photo plates: meso- and macroz
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ACKNOWLEDGEMENTS The authors gratef
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REFERENCES Aberle, N., Lengfellner,
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marine biodiversity inventory and t
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Bibliographie zur Biologie und Öko
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Johansson, M., Gorokhova, E., Larss
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method of estimating algal numbers
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community of Tokyo Bay. ICES J. Mar
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system by Aurelia aurita medusae -
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de/documents/mebe73_2008-telesh-lpo
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SELECTED ZOOPLANKTON INTERNET DATA
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INDEX OF LATIN NAMES Only valid spe
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Blepharisma tardum 46 Blepharisma u
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Coleps arenarius 48 Coleps bicuspis
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Didinium 36, 38, 51 Didinium balbia
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Folliculina ampula 54 Folliculina g
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Keronopsis arenivorus 57 Keronopsis
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Metopus major 61 Metopus nivaaensis
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Peritromus faurei 64 Peritromus mon
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Remanella brunnea 67 Remanella caud
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Strongylidium muscorum 71 Stylonich
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Trichocerca dixon-nutalli 154 Trich
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Meereswissenschaftliche Berichte MA
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25 (1997) v. Bodungen, Bodo; Hentzs
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49 (2002) Nausch, Günther; Feistel
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73 (2008) Telesh, Irena; Postel, Lu
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