Results 91 to 100 of about 2,889 (214)
Zanco Journal of Pure and Applied SciencesA total of 194 specimens of the predatory leech Helobdella stagnalis were collected from Sarchnar Stream, in Sulaimaniyah City along year of 2022 from January to the end of December.
Shayan Hallaq +2 more
doaj +1 more source
Revista de Biología Tropical, 2007 Sanguijuelas de las dos especies Helobdella duplicata y H. triserialis (ambas Glossiphonidae) parasitan al camarón de río Cryphiops caementarius en río Limarí, Chile. El 47 % de los camarones estaba parasitado por una o ambas especies de hirudíneos.
Patricio Tello +2 more
doaj
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.
core
Helobdella octatestisaca Lai and Chang 2009
, 2018 Helobdella octatestisaca Lai and Chang, 2009 Figures 14–15 The presence of a chitinous nuchal scute; dorsal and ventral surfaces with inconspicuous papillae; no metameric pigmentation patterns; eyespots in one pair, each shaped somewhat triangularly, almost touching each other is consistent with the description of Helobdella octatestisaca (see ...
Tessler, Michael +2 more
openaire +2 more sources
Independent elaboration of steroid hormone signaling pathways in Metazoans [PDF]
, 2009 Steroid hormones regulate many physiological processes in vertebrates, nematodes and arthropods through binding to nuclear receptors (NR), a metazoan-specific family of ligand-activated transcription factors.
Barbara A. Demeneix +5 more
core +4 more sources
Ciliary photoreceptors in the cerebral eyes of a protostome larva [PDF]
, 2011 BACKGROUND: Eyes in bilaterian metazoans have been described as being composed of either ciliary or rhabdomeric photoreceptors. Phylogenetic distribution, as well as distinct morphologies and characteristic deployment of different photopigments (ciliary
Andreas Hejnol +4 more
core +4 more sources
The Aquatic Macroinvertebrates of the White River National Wildlife Refuge [PDF]
, 1991 The primary purpose of this study was to survey the diversity of the aquatic macroinvertebrates of the White River National Wildlife Refuge (WRNWR). Determining relative abundance and distributional and seasonal patterns were secondary objectives.
Chordas, Steve W., III, Harp, George L.
core +2 more sources
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 +3 more
core +1 more source
Hirudíneos asociados a hidrófitas en la Laguna Los Patos, Buenos Aires, Argentina
Revista del Museo de La PlataEl objetivo de este trabajo es identificar los hirudíneos hallados en la Laguna Los Patos, Partido de Ensenada, Provincia de Buenos Aires (34º 49' S y 57° 57' W) analizar las variaciones estacionales de sus poblaciones teniendo en cuenta ...
Bettina Sandra Gullo
doaj
Comparative Studies on the Life Cycle and Ecology of Two Populations of Physa Heterostropha (Say) (Gastropoda: Pulmonata) [PDF]
, 1975 Author Institution: Bio Control Packaging Department, Adolph Coors Company, and Biology Department, New York State University, College at OneontaHERRMANN, SHEILA A. AND WILLARD N. HARMAN.
Harman, Willard N., Herrmann, Sheila A.
core