Results 71 to 80 of about 312,952 (138)
River Research and Applications, Volume 42, Issue 6, Page 1272-1282, July 2026.ABSTRACT Salmonid fishes typically express anadromy. During their juvenile riverine emigration, their downstream movements can be inhibited by hydropower schemes that entrain fish in their intakes. Here, the riverine migration success of smolts of brown trout Salmo trutta (“trout smolt”) and Atlantic salmon Salmo salar smolts (“salmon smolt”) was ...
Bertram I. C. Warren, J. Robert Britton
wiley +1 more source
Sustainable Aquatic ResearchA farm study was undertaken at a commercial farm in Sagana town, Kirinyaga County, Kenya, whereit was discovered that Oreochromis niloticus in earthen ponds had massive digenean fluke cysts on the skin.
Robert Waruiru +7 more
doaj +1 more source
Diet analysis in piscivorous birds: What can the addition of molecular tools offer?
Ecology and Evolution, 2017 AbstractIn trophic studies on piscivorous birds, it is vital to know which kind of dietary sample provides the information of interest and how the prey can be identified reliably and efficiently. Often, noninvasively obtained dietary samples such as regurgitated pellets, feces, and regurgitated fish samples are the preferred source of information. Fish
Johannes Oehm +3 more
openaire +2 more sources
Spatial patterns of mercury risk to piscivorous wading birds of the south central United States
, 2018 Mercury (Hg) is a toxic heavy metal that can pose a risk to birds. Piscivorous birds are exposed to Hg by consuming Hg-contaminated fish. Although there is data on concentrations of Hg in fish, the data on concentrations of Hg in birds is limited. I used
Gerstle, Christopher Thomas,author.
core
Physical cognition : birds learn the structural efficacy of nest material [PDF]
, 2014 This work was supported by the BBSRC (BB/I019502/1) and Roslin Institute Strategic Grant funding from the BBSRC. The APC was paid through RCUK OA block grant funds.It is generally assumed that birds’ choice of structurally suitable materials for nest ...
Meddle, Simone L. +8 more
core +1 more source
A study on the avifaunal diversity and community dynamics of Karanji Lake, Mysuru, Karnataka, India
Journal of Threatened TaxaWe conducted the present field study to record avifaunal diversity at Karanji Lake, Mysuru, Karnataka, from April 2021 to March 2022 on a bimonthly basis. Point count method with a fixed radius was carried out within the lake premises, with 14 grids.
S. Sushanth, K.S. Raghunandan
doaj +1 more source
Determination of Mercury Concentration in Different Tissues of Coot (Fulica Atra), Mallard (Anas Platyrhynchos) and Great Cormorant (Phalacrocorax Carbon) [PDF]
سلامت و محیط, 2012 Background and Objectives: The heavy metals pollution in aquatic ecosystems especially mercury, always makes concern about health of aquatic organisms. So, the purposes of this study were determination of total mercury in different tissues of the three ...
N Bahramifar, A Esmaili-Sari, J Azami
doaj
Memorias do Instituto Oswaldo Cruz, 1984 O material estudado foi coletado no "pinguim naufragado", Sphenicus magellanicus (Forster), na baia de Guanabara, Rio de Janeiro e cedido pela bióloga Carla Chediak.
Cláudia Portes Santos
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International Journal for Parasitology: Parasites and WildlifeParadilepis scolecina (Rudolphi, 1819) Hsü, 1935 is a tapeworm widely distributed across the globe that uses piscivorous birds as definitive hosts. Although various piscivorous birds inhabit the Republic of Korea (Korea), this species has not previously ...
Heon Woo Lee +9 more
doaj +1 more source
Avian Conservation and Ecology, 2022 Bycatch, or the incidental capture of non-target species in fisheries, has been identified as one of the major threats affecting seabird populations worldwide.
Julius Morkūnas +5 more
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