Results 81 to 90 of about 3,469 (229)
Shearing Tooth Morphology May Allow Sharks to Access Higher Trophic Levels at Smaller Sizes
Ecology and Evolution, Volume 15, Issue 8, August 2025.Predator morphology imposes limitations on prey selection due to biomechanical constraints, making some prey functionally inaccessible and thereby constraining predator trophic niches. We assessed how two key components of trophic morphology—tooth shape and body size—affect prey selectivity and trophic niche in two sympatric sharks with contrasting ...
Sabrina Riverón +7 more
wiley +1 more source
Survey of Diplostomiasis in Sturgeon Fingerling
Majallah-i ̒Ilmī-i Shīlāt-i Īrān, 1997 In parasitologic survey on sturgeon fish in Shahid-Beheshti farm, the metacercaria of Diplostomum spathaceum were seen in the lens of fish fingerlings. The prevalence of infestation was 22 percent.
A. Ghoroghi
doaj
Revista Politécnica, 2019 La quebrada La Chaparrala surte al acueducto municipal de Andes-Antioquia, en 2014 se realizó la caracterización fisicoquímica y biológica de sus aguas. La turbiedad, DQO, alcalinidad, nitratos, N-amoniacal, nitrógeno total, fósforo total, ortofosfatos y
Andrés Felipe Escobar Gutiérrez +1 more
doaj +1 more source
Некоторые направления адаптивной эволюции кладок яиц пресноводных брюхоногих моллюсков [PDF]
, 2002 В работе обсуждаются морфологические типы кладок яиц пресноводных брюхоногих моллюсков и ос-новные пути эволюции их адаптаций к размножению в пресных ...
Берёзкина, Г. В.
core
European Journal of Entomology, 2015 Hydrophilus acuminatus larvae are known to feed on aquatic prey. However, there is no quantitative study of their feeding habits. In order to determine the feeding preferences and essential prey of larvae of H.
Toshio INODA +2 more
doaj +1 more source
Кряква (Anas platyrhynchos L.) и легочные моллюски (Gastropoda: Pulmonata) как потенциальные источники шистосоматидного дерматита в г. Минске [PDF]
, 2014 В статье приводятся данные по оценке степени зараженности легочных моллюсков трематодами сем. Schistosomatidae на водных объектах г. Минска. Дается сравнительный анализ степени зараженности моллюсков исследуемых водоемов за весенне-осенний период ...
Гомель, К. В.
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Cercariae (Digenea: Strigeidae, Diplostomidae) in Biomphalaria straminea (Planorbidae) from a rice field in Northeastern Argentina [PDF]
, 2017 The rice fields can provide habitats for many species of aquatic invertebrates, as insects, molluscs, crustaceans; and vertebrates, as fish, amphibians, reptiles and birds, which may act as hosts in the life cycles of digenean parasites. In this context,
Fernández, María Virginia +1 more
core +1 more source
Ecological Solutions and Evidence, Volume 6, Issue 3, July–September 2025.This study evaluates the opportunities and challenges of using DNA metabarcoding of river macroinvertebrates for routine ecological status assessment under the EU Water Framework Directive. By reanalysing data from rivers in north‐west Spain, it identifies key sources of false positives and negatives, compares bulk and eDNA sampling with traditional ...
Álvaro Fueyo +4 more
wiley +1 more source
Negleted diseases : contributions from continental malacology [PDF]
, 2014 Fil: Rumi, Alejandra. División Zoología Invertebrados. Facultad de Ciencias Naturales y Museo. Universidad Nacional de La Plata; ArgentinaFil: Vogler, Roberto Eugenio. Departamento de Biología.
Rumi, Alejandra, Vogler, Roberto Eugenio
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Invasive species invoke a lifetime of trophic change in native stream fishes
Ecosphere, Volume 16, Issue 6, June 2025.Abstract Trophic interactions operate across the lifetime of an individual organism, yet our understanding of these processes is largely limited to a single life stage or moment in time. Management and conservation implications of this knowledge gap are particularly important, given the mounting number, spread, and ecological impacts of invasive ...
Jessica O. Diallo, Julian D. Olden
wiley +1 more source