Results 41 to 50 of about 6,303 (216)

New records of Piscicola geometra (Linnaeus 1758) (Hirudinea, Piscicolidae) in Ebro River Basin (N Spain). [PDF]

open access: yesMunibe Ciencias Naturales, 2014
This note represents a contribution to the knowledge of the presence of the fish leech Piscicola geometra (Linnaeus 1758) (Hirudinea, Piscicolidae) in the Ebro River Basin. This species was collected in two rivers in the Ebro River Basin.
Oscoz, J., Tomás, P., Durán, C.
doaj  

Leeches (Hirudinea) in aquatic ecosystems of national park “Prielbrusye”

open access: yesRUDN Journal of Ecology and Life Safety, 2017
The article provides information about the fauna of leeches living in the various reservoirs on especially protected natural territories of the Federal state budget establishment The National Park Prielbrusye.
Andrey Vladimirovich Yakimov   +4 more
doaj   +1 more source

Plant balls from a Pomeranian lake, their invertebrate and microplastic components

open access: yesOceanological and Hydrobiological Studies, 2023
Two balls with similar diameters (approximately 11–12cm) were found on the bottom of Lake Białe (Kashubian Lake District) at depths of 4m and 7m. The structures were made of tightly-packed plant remains represented mainly by decaying leaves of Larix sp ...
Witalis Bartosz, Kornijów Ryszard
doaj   +1 more source

More Is Not Always Better: Selective Trait Filtering Governs Assembly Under Emerging Flow Intermittency

open access: yesEcology and Evolution, Volume 16, Issue 4, April 2026.
The study examined how increasing flow intermittency affects macroinvertebrate community organisation in newly drying headwater streams. Results showed that drying selectively filters species and trait states, with resistance‐ and resilience‐related survival strategies responding differently to increasing intermittency.
Tamás Bozóki   +5 more
wiley   +1 more source

Biodiversity of macrozoobenthos in a large river, the Austrian Danube, including quantitative studies in a free-flowing stretch below Vienna: a short review [PDF]

open access: yes, 2005
The Danube is ca. 2850 km in length and is the second largest river in Europe. The Austrian part of the Danube falls 156 metres in altitude over its 351 km length and, since the early 1950s, the river has been developed into a power-generating waterway ...
Fesl, Christian, Humpesch, Uwe
core  

Atividade predatória de Helobdella triserialis lineata (Hirudinea: Glossiphonidae) sobre formas imaturas de Aedes fluviatilis e Culex quinquefasciatus (Diptera: Culicidae) em laboratório Predatory activity of Helobdella triserialis lineata (Hirudinea: Glossiphonidae) on immature forms of Aedes ftuviatilis and Culex quinquefasciatus (Diptera: Culicidae) in the laboratory

open access: yesRevista de Saúde Pública, 1984
Foi avaliada a atividade predatória, em laboratório, de Helobdella triserialis lineata (Hirudinea: Glossiphonidae) sobre ovos, larvas e pupas de Aedes fluviatilis e Culex quinquefasciatus (Diptera: Culicidae), bem como a influência da presença desses ...
Rotraut Anna Gertrud Bohlmann Cônsoli   +3 more
doaj   +1 more source

Abundance and composition of invertebrate-feeding leeches in relation to fish status in ponds

open access: yesThe European Zoological Journal, 2023
Leeches feeding on invertebrates are an important component of freshwater communities, including those dominated by fish, but the effects of fish on their abundance and distribution are not well explored.
M. Nieoczym   +4 more
doaj   +1 more source

Epidemiology of Leech Infestation in Livestock and Evaluation of Phytolacca dodecanda (Endod) for Aquatic Leech Control in Selected Districts of South, Central, and North Gondar Zones, Northwest Ethiopia

open access: yesVeterinary Medicine International, Volume 2026, Issue 1, 2026.
The livestock industry in Ethiopia suffers greatly from parasites and parasitic diseases including leech infestation. Leech infestation is a serious disease of animals and occasionally humans, but it is usually ignored. A cross‐sectional study design was carried out from January 2022 to June 2022 to estimate the prevalence of leech infestation in ...
Moges Maru   +11 more
wiley   +1 more source

An annotated check list of the leeches (Annelida : Hirudinea) of the Kruger National Park with a key to the species

open access: yesKoedoe: African Protected Area Conservation and Science, 1991
The diagnosis, distribution and bionomics of the ten species of leeches occurring in the Kruger National Park and a key to the identification of the species are presented.
J.H. Oosthuizen
doaj   +1 more source

Langcliffe hatchery investigations 1982 [on River Ribble near Settle] [PDF]

open access: yes, 1982
Langcliffe hatchery investigations looks at fish mortalities for salmon (fry), sea trout, brown trout and rainbow trout, and explores the River Ribble's water ...
Clough, W.T.
core  

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