Results 51 to 60 of about 1,603 (198)

Zoocoenological state of microhabitats and its seasonal dynamics in an aquatic macroinvertebrate assembly (Hydrobiological case studies on lake Balaton, No. 1.) [PDF]

, 2005
In the years 2002, 2003 and 2004 we collected samples of macroinvertebrates on a total of 36 occasions in Badacsony bay, in areas of open water (in the years 2003 and 2004 reed-grassy) as well as populated by reed (Phragmites australis) and cattail ...
Gaál, Márta, Hufnagel, Levente, Sipkay, Csaba   +2 more
core  

Karyology ofErpobdella PunctataandNephelopsis Obscura(Annelida: Hirudinoidea) [PDF]

Caryologia, 1986
SUMMARYMeiosis of Erpobdella punctata and Nephelopsis obscura (Hirudinoidea: Erpobdellidae), has been studied in both testes and ovaries. At prophase I and metaphase I eight bivalents occurred in the majority of the nuclei in E. punctata; eleven in N. obscura. Spermatogonial metaphases showed 16 and 22 chromosomes in E. punctata and N.
R. N. Singhal, Ronald W. Davies, C. C. Chinnappa   +2 more
openaire   +1 more source

Structural Characterization of a Novel Neuropeptide from the Central Nervous System of the Leech Erpobdella octoculata

Journal of Biological Chemistry, 1996
Purification of a material immunoreactive to an antiserum against the C-terminal part of the oxytocin (Pro-Leu-Gly-amide) and present in the central nervous system of the Pharyngobdellid leech Erpobdella octoculata was performed by reversed-phase high ...
M. Salzet, Phillipe Bulet, W. Weber, W. Clauss, M. Verger-Bocquet, J. Malecha   +5 more
semanticscholar   +1 more source

Biological report - fish mortality, River Conder, 21.7.79 [PDF]

, 1979
Following a large scale fish mortality caused by a considerable spillage of a pentachlbrophenol-based disinfectant from a mushroom farm, a biological survey of the river Conder was undertaken on 23.7.79.
Ingersent, B.
core  

Seasonal dynamics of an aquatic macroinvertebrate assembly (Hydrobiological case study of Lake Balaton No. 2) [PDF]

, 2007
In 2002, 2003 and 2004, we took macoinvertebrate samples on a total of 36 occasions at the Badacsony bay of Lake Balaton. Our sampling site was characterised by areas of open water (in 2003 and 2004 full of reed-grass) as well as by areas covered by ...
Hufnagel, Levente, Petrányi, Gergely, Révész, András, Sipkay, Csaba   +3 more
core   +1 more source

Ecology of the Ráckeve-Sorokság Danube – a review [PDF]

, 2007
Present paper is a review on the Ráckeve-Soroksár Danube in ecological standpoint. The goal of this study is to collect and evaluate all of available publications in that conception, concerning this Danube arm.
Hufnagel, Levente, Jablonszky, Gy., Mészáros, G., Vadadi Fülöp, Cs.   +3 more
core  

Trematode Parasite Infections in Freshwater Leeches from the Central Region of Lithuania: First Record of Posthodiplostomum (Dubois, 1936) in a Leech Host

Diversity
Leeches play a critical role in the transmission of digenean trematodes, yet their parasitic infections remain understudied in the Baltic region. This study investigates the diversity, prevalence, and molecular identification of trematode infections in ...
Jurgita Rutkauskaitė-Sucilienė, Loreta Griciuvienė, Baltramiejus Jakštys, Ingrida Šatkauskienė   +3 more
doaj   +1 more source

Notes on the Natural History of the Leeches (Hirudinea) on the George Reserve, Michigan [PDF]

, 1968
Author Institution: Department of Zoology, University of Michigan, Ann Arbor, MichiganThe local distribution and relative abundance of the leeches of the E. S. George Reserve, located in southeastern Michigan, were investigated.
Sawyer, Roy T.
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Benthic and interstitial habitats of a lentic spring as invertebrate refuges during supra-seasonal drought [PDF]

, 2013
Instream refuges are places where invertebrates persist during disturbances due to reduced adverse impacts. During droughts, low flows may be accompanied by elevated temperatures, and potential refuges including subsurface sediments and spring-fed ...
Stubbington, R, Wood, PJ
core   +1 more source

Benthic and Hyporheic Macroinvertebrate Distribution Within the Heads and Tails of Riffles During Baseflow Conditions [PDF]

, 2016
The distribution of lotic fauna is widely acknowledged to be patchy reflecting the interaction between biotic and abiotic factors. In an in-situ field study, the distribution of benthic and hyporheic invertebrates in the heads (downwelling) and tails ...
AH Sawyer, AI Packman, AJ Boulton, AJ Boulton, AJ Boulton, AJ Boulton, AM Suren, AV Brown, AV Brown, BC Chessman, BJ Downes, C Buendia, C Rabeni, C Richards, CA Extence, CD Relyea, CK Wentworth, CM Swan, CN Gibbins, D Harper, DA Olsen, DA Sear, DH Käser, DJ Milan, DL Strayer, DM Fonseca, DM Pepin, DR Lee, DRO Silva, EJ Rosi-Marshall, F Boano, F Malard, F Mermillod-Blondin, G Pinay, G Weigelhofer, GE Petts, H Tachet, HBN Hynes, I Jones, J Davy-Bowker, J Gomez-Velez, J Ren, JH Winterbottom, JI Jones, JL Strommer, JR Thomson, Kate L. Mathers, KL Mathers, KL Mathers, KR Clarke, L Maridet, L Mauclaire, LE McMullen, M Brunke, M Dudley-Southern, M Effenberger, M Hartwig, M Huettel, M Pusch, M Tilzer, Matthew J. Hill, MD Newson, MJ Dole-Oliver, MJ Dole-Olivier, MJ Dole-Olivier, MJ Wilson, MS Wipfli, MT Greenwood, MZ Xu, N Saenger, N Turić, NB Grimm, ND Gordon, NL Poff, O Pacioglu, P Marmonier, P Marmonier, Paul J. Wood, PD Armitage, PE Sarriquet, PE Schmid, PJ Wood, PJ Wood, PJ Wood, PJ Wood, PP Brussock, R Leek, R Stubbington, RCM Verdonschot, RE Campbell, RG Death, RJM Franken, RL Vannote, RT Fowler, S Brosse, S Descloux, S Descloux, S Findlay, S Gayraud, S Krause, S Krause, S Krause, S Larson, SA Savant, SM Wondzell, T Bo, T Datry, T Orghidan, X Duan, YS Wildhaber   +109 more
core   +2 more sources