Results 51 to 60 of about 6,245 (201)
Revista Mexicana de Biodiversidad, 2005 SE ESTUDIAN LAS RELACIONES FILOGENÉTICAS DEL SUBORDEN ERPOBDELLIFORMES, UN GRUPO DE SANGUIJUELAS NO HEMATÓFAGAS DE VERTEBRADOS, CON BASE EN SECUENCIAS DE LA SUBUNIDAD I DEL CITOCROMO C OXIDASA DEL ADN MITOCONDRIAL, 12S ADNR DEL ADN MITOCONDRIAL Y 18S ...
VIRGINIA LEÓN REGAGNON +2 more
doaj +1 more source
Redescription of Placobdella Multistriata ( Johansson, 1909) (Hirudinea: Glossiphoniidae)
Koedoe: African Protected Area Conservation and Science, 1979 Study of a large number of specimens of Placobdella multistriata (Johansson, 1909) revealed the unsatisfactory nature of the information currently available on this leech. The reason is evidently the fact that previous workers had very limited and poorly
J. H Oosthuizen
doaj +1 more source
Investigating changes to food web structure after fish removal using size spectra analysis
Ecosphere, Volume 16, Issue 5, May 2025.Abstract Biomanipulation can control eutrophication, but if there is no discernible change, it is difficult to disentangle whether the biomanipulation failed to substantially alter food web structure or was unable to overcome external nutrient loading. Traditional food web model analyses to monitor management interventions can be prohibitively time and
Tyler J. Butts +3 more
wiley +1 more source
A study of the effects of substrate type on the benthic macroinvertebrate fauna in the river Wear, county Durham [PDF]
, 1986 Not ...
Martin, A. J.
core
Environmental DNA, Volume 7, Issue 3, May–June 2025.We assessed whether we can combine the advantages of both bulk and eDNA metabarcoding, that is, obtaining a local signal and being minimally invasive, to improve local invertebrate detections in streams using water samples. We quantified eDNA release over time after a short incubation in water for single species using qPCR and for bulk samples using ...
Mandy Sander +5 more
wiley +1 more source
Papers and proceedings of the Royal Society of Tasmania, 1957 Descriptions are given of two species of Haemadipsidae, one, Philaemon grandis sp. nov., the other Philaemon pungens Blanchard. The egg-capsule and newly hatched young of the latter species are also described. Limnobdella australis (Bosisto) (Hirudinidae) is recorded for the first time as occurring in Tasmania.
openaire +1 more source
Toxic effect of Raphia vinifera on fish leech (Piscicola geometra) [PDF]
, 2001 This study examines acute toxicity of Raphia vinifera on fish leech, Piscicola geometra. The leeches with a mean total length of (TL) 4.2+1.0cm were exposed to various concentrations of both crude powdered and ethanolic extracts of the botanical.
Adebisi, A.A., Fafioye, O.O.
core
Evidence on Night Movements of Macroinvertebrates to Macrophytes in a Pampean Stream [PDF]
, 2014 Nocturnal invertebrate abundance peaks in lotic systems are usually associated to drift, however, diel migrations other than drift may be important in slow-flowing systems.
Ferreiro, Nicolas Andres
core +1 more source
Under Pressure: Macroinvertebrate Community Responses to Agriculture in Temporary Streams
Freshwater Biology, Volume 70, Issue 5, May 2025.ABSTRACT Temporary streams dominate global river networks and thus often occur in catchments dominated by agricultural land uses. Drying and agriculture can exert similar stressors on aquatic communities, for example, by decreasing dissolved oxygen concentrations and increasing fine sediment deposition.
Kieran J. Gething +5 more
wiley +1 more source
Acta Amazonica, 2013 O objetivo principal deste trabalho foi estudar a parasitofauna e a relação hospedeiro- parasito em tambaqui Colossoma macropomum cultivados em tanques-rede no Rio Matapi, município de Santana, estado do Amapá, região da Amazônia oriental, Brasil.
Evandro Freitas Santos +5 more
doaj +1 more source