Results 41 to 50 of about 6,245 (201)
Langcliffe hatchery investigations 1982 [on River Ribble near Settle] [PDF]
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
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]
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
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
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
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]
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
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]
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
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

