Results 61 to 70 of about 807 (171)
Revista Mexicana de Biodiversidad, 2016 Se documenta la presencia de la sanguijuela introducida Barbronia weberi en el río San Juan, Monterrey, Nuevo León, México, que corresponde al segundo registro de esta especie de agua dulce en el país.
Uriel Garduño-Montes de Oca +4 more
doaj +1 more source
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
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
Brazilian Journal of BiologyThe presence of the marine leech, Stibarobdella loricata (Harding, 1924) (Hirudinea, Piscicolidae), is reported on the southern coast of Brazil, based on seven lots with 47 specimens, between 71 and 182 mm in total length, collected on the dorsal region ...
J. M. R. Soto
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Leech Infestation Presenting as Severe Rectal Bleeding
Journal of Digestive Endoscopy, 2017 Leech or Hirudinea is a major parasite in rural India. Normally, the leech attacks the skin and exposed areas. An 18‑year‑old child presented with bleeding per rectum for 1 day along with giddiness.
Jimmy Narayan +6 more
doaj +1 more source
Revista Mexicana de Biodiversidad, 2012 En contraste con los enormes esfuerzos realizados por caracterizar la fauna y flora de Costa Rica, con excepción de algunos registros aislados, muy poco se sabe sobre las sanguijuelas (Annelida: Clitellata) en este país.
Alejandro Oceguera-Figueroa +1 more
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A checklist of the protozoan and metazoan parasites of ruff (Gymnocephalus cernuus) [PDF]
Журнал Сибирского федерального университета: Серия Биология, 2010 The present paper summarizes data on parasites of ruff from all its area, based on published reviewed journals, scientific reports, conference contributions, PhD theses.
Alexander E. Zhokhov
doaj
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
The leeches (Hirudinea) of Saskatchewan
The Canadian field-naturalist, 1958 (Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
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Neurosecretion in the Hirudinea and Its Possible Role in Reproduction [PDF]
American Zoologist, 1966 Two types of neurosecretory cells (α and β) are present in the brain in Hirudo and Theromyzon . The α cells contain secretions which stain with paraldehydefuchsin and contain considerable amounts of cystine. They have an annual cycle of activity, showing greater amounts of secretion in cell bodies and axons in spring and summer.
openaire +2 more sources