Population ecology, vertical migration and feeding of the Ponto‐Caspian invader <i>Hemimysis anomala</i> in a gravel‐pit lake connected to the River Rhine

Freshwater Biology - Tập 51 Số 12 - Trang 2376-2387 - 2006
Jost Borcherding1, SIMONE MURAWSKI1, HARTMUT ARNDT1
1Zoological Institute of the University of Cologne, Department of General Ecology and Limnology, Ecological Field Station Grietherbusch, Köln, Germany

Tóm tắt

Summary1. The Ponto‐Caspian invader, Hemimysis anomala, was recently found in large numbers in a gravel‐pit lake connected to the Lower Rhine. Mysids were sampled with Perspex traps between September 2002 and April 2003 to study the population dynamics, vertical migration and feeding.2. The abundance (as catch per unit effort, CPUE) of H. anomala declined from 270 individuals (ind.) trap−1 (4 h)−1 in December to below 4 ind. trap−1 (4 h)−1 in April. Average lengths ranged from 4.9 mm in autumn to 9.9 mm in March. The length–weight relationship of virgin females changed throughout the sampling period, from a size‐corrected wet weight of 5.1 mg in September to 16.6 mg in April for a female of 7.8 mm.3. Successive monthly samples taken over 24 h revealed that H. anomala preferred the surface at twilight and night. During dawn the mysids migrated to the middle and bottom layers and were hardly found during day. Diel vertical migration clearly depends on the proximate factor light.4. Stomach analyses revealed that larger H. anomala preferred zooplankton, whereas small individuals fed more on phytoplankton. The seasonal comparison showed an increasing percentage of zooplankton with increasing length. The proportion of zooplankton in the stomachs of large H. anomala individuals was highest during night and lowest during day.5. The results suggest that H. anomala may become an important link between primary/secondary production and higher trophic levels in the food web of its new environments at the Lower Rhine.

Từ khóa


Tài liệu tham khảo

10.3354/meps127047

Bij de VaateA.(2003)Degradation and Recovery of the Freshwater Fauna in the Lower Sections of the Rivers Rhine and Meuse.PhD Thesis Wageningen University Wageningen The Netherlands.

10.1139/f02-098

Borcherding J., 2001, Zwei neue Schwebgarnelen (Crustacea: Mysidacea) in rheinangebundenen Nebengewässern am Unteren Niederrhein, Natur am Niederrhein (N.F.), 16, 138

10.1002/1522-2632(200205)87:2/3<165::AID-IROH165>3.0.CO;2-R

Borcherding J., Ecology of Freshwater Fish

10.1111/j.0022-1112.2006.01020.x

10.1126/science.261.5117.78

10.1577/1548-8659(2000)129<0569:ZANRBI>2.0.CO;2

10.1098/rspb.2000.1099

10.1127/0003-9136/2004/0159-0001

10.1016/S0304-3800(98)00040-4

Holmquist C., 1972, Die Binnengewässer Band XXVI. Das Zooplankton der Binnengewässer. 1. Teil, 247

10.1111/j.1095-8649.1993.tb00433.x

Jansen W., 1983, Die Rolle von Neomysis integer LEACH (Mysidacea) im Stoffumsatz des eutrophierten Brackgewässers Barther Bodden (südliche Ostsee) – I Konsumtion von Phytoplankton, Wissenschaftliche Zeitschrift der Wilhelm-Pieck-Universität Rostock, 5, 39

Jansen W., 1983, Die Rolle von Neomysis integer LEACH (Mysidacea, Crustacea) im Stoffumsatz des eutrophierten Brackgewässers Barther Bodden (südliche Ostsee) – II Konsumtion von Zooplankton, Wissenschaftliche Zeitschrift der Wilhelm-Pieck-Universität Rostock, 5, 44

Kaestner A., 1993, Lehrbuch der Speziellen Zoologie. Band I: Wirbellose Tiere. 4. Teil: Arthropoda (ohne Insecta), 4. Auflage, 1

Kelleher B., 1999, Current status of the freshwater Mysidae in The Netherlands, with records of Limnomysis benedeni Czerniavsky, 1882, a pontocaspian species in dutch Rhine branches, Bulletin Zoölogisch Museum, Universiteit van Amsterdam, 16, 89

10.1023/A:1003619631920

10.1007/BF02143203

Koksvik J.I., 1999, Changes in plankton biomass and species composition in Lake Jonsvatn, Norway, following the establishment of Mysis relicta, American Fisheries Society Symposium, 9, 115

10.4319/lo.2003.48.3.1223

10.1007/BF01131409

Langeland A., 1991, Impact of the introduction of Mysis relicta on the zooplankton and fish populations in a Norwegian lake, American Fisheries Society Symposium, 9, 98

10.1139/f86-158

10.1111/j.1442-9993.1998.tb00705.x

Mattukat F., 1996, Trophische Interaktionen der 0+ juvenilen Plötze (Rutilus rutilus L.) bei hohem Fraßdruck durch piscivore Räuber

Mauchline J., 1980, The biology of mysids, Advances in Marine Biology, 18, 1

Mehner T., 1995, Interaction of zooplankton dynamics and diet of 0+ perch (Perca fluviatilis L.) in the top‐down manipulated Bautzen reservoir (Saxony, Germany) during summer, Limnologica, 25, 1

Murawski S., 2003, Untersuchungen zur Populationsökologie des pontokaspischen Neozoen Hemimysis anomala G.O. Sars, 1907 (Crustacea: Mysidacea) in einem rheinangebundenen Baggersee am Niederrhein

10.1016/S0075-9511(03)80020-8

10.1139/f02-099

10.1080/08927019809378374

10.1139/f98-066

Rudstam L.G., 1990, On the ecology of Mysis mixta (Crustacea, Mysidacea) in a coastal area of the northern Baltic Sea, Marine Ecology Progress Series, 80, 259

Salemaa H., 1993, Hemimysis anomala G.O. Sars (Crustacea, Mysidacea) – immigration of a pontocaspian mysid into the baltic sea, Annales Zoologici Fennici, 30, 271

Schleuter A., 1998, Hemimysis anomala G.O. Sars 1907 (Crustacea: Mysidacea), eine euryhaline pontokaspische Schwebgarnele in Rhein und Neckar. Erstnachweis für Deutschland, Lauterbornia, 32, 67

TsalolikhinS.J.(1995)Key to freshwater invertebrates of Russia and adjacent lands.Russian Academy of Science St. Petersburg Russia.

Van der Velde G., 1998, New Concepts for Sustainable Management of River Basins, 159

Van der Velde G., 2000, Ecological impact of crustacean invaders: general considerations and examples from the Rhine River, Crustacean Issues, 12, 3

ViherluotoM.(2001)Food Selection and Feeding Behaviour of Baltic Sea Mysid Shrimps.PhD Thesis University of Helsinki Helsinki.

Wittmann K.J., 1999, Die Drift von Mysidacea und Decapoda und ihre Bedeutung für die Ausbreitung von Neozoen im Main‐Donau‐System, Lauterbornia, 35, 53

Thông tin
Thông tin xuất bản

Freshwater Biology

Tập 51 Số 12

2376-2387

Thông tin tác giả