Results 41 to 50 of about 6,245 (201)

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  

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

Provisional atlas of the freshwater leeches of the British Isles [PDF]

open access: yes, 1981
Distribution maps were included in the second edition of the F.B.A. Scientific Publication on British freshwater leeches (Mann 1964). When that publication was extensively revised and enlarged to include a review of the literature on the ecology of ...
Elliott, J.M., Tullet, P.A.
core  

From Mud to Meat: Comparative Metabarcoding Reveals Two Different Evolutionary Paths to Carnivory in a Group of Meiofaunal Annelids

open access: yesMolecular Ecology, Volume 34, Issue 22, November 2025.
ABSTRACT Evolutionary transitions to carnivory represent profound shifts in feeding mode that are often accompanied by widespread changes in organismal function, behaviour and ecology. Such transitions have evolved numerous times among animals, and predator–prey interactions have been major drivers of animal evolution.
Joseph M. Mack, Alexandra E. Bely
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

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

Biological research of Grabia River - fifty years of activity [PDF]

open access: yes, 2005
Grabia, a small still close to natural conditions lowland river, has been an object of special interest for Łódź hydrobiologists for more than 50 years.
Siciński, Jacek, Tończyk, Grzegorz
core  

Restoration using flow deflectors: a question of fine‐scale spatial layout in headwater stream beds

open access: yesRestoration Ecology, Volume 33, Issue 7, September 2025.
Current European Union objectives for 2030 aim to restore ecosystems to halt biodiversity loss. Here, we studied the consequences of headwater stream restoration by placing large wood in the streambed to act as flow deflectors. We hypothesized that these flow deflectors would create a fine‐scale spatial arrangement of habitats, fostering a diverse and ...
Cybill Staentzel   +4 more
wiley   +1 more source

FOOD COMPOSITION OF GRAYLING Thymallus thymallus L., FROM THE RIVER KRUŠNICA [PDF]

open access: yesCroatian Journal of Fisheries, 2008
Total of 118 specimens of grayling (Thymallus thymallus L.) is caught with sport fishing techniques in the river Krušnica. The objectives of this research was to obtain data about the diet composition of these species in natural biotopes.
Azra Bećiraj Bakrač   +3 more
doaj  

Postcranial anomalies of Eocene freshwater pleurodiran and cryptodiran turtles from the Spanish Duero Basin

open access: yesThe Anatomical Record, Volume 308, Issue 6, Page 1659-1676, June 2025.
Abstract Testudines are one of the best‐represented taxonomic groups among the Paleogene taxa of the Duero Basin (Castile and Leon Autonomous Community, central Spain). Among them, Neochelys (Podocnemidide) and Allaeochelys (Carettochelyidae) are most abundant, allowing the population to be assessed for osteological anomalies.
Andrea Guerrero   +3 more
wiley   +1 more source

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