Results 51 to 60 of about 404 (124)

Parasite load, rather than parasite presence, decreases upstream movement in Trinidadian guppies Poecilia reticulata

open access: yesJournal of Fish Biology, Volume 105, Issue 1, Page 177-185, July 2024.
Abstract Several factors influence whether an organism remains in its local habitat. Parasites can, for example, influence host movement by impacting their behavior, physiology, and morphology. In rivers, fish that swim efficiently against the current are able to maintain their position without being displaced downstream, a behavior referred to as ...
L. Blondel   +3 more
wiley   +1 more source

Lufenuron treatment temporarily represses gene expression and affects the SUMO pathway in liver of Atlantic salmon

open access: yesJournal of Fish Diseases, Volume 47, Issue 2, February 2024.
Abstract Lufenuron is a benzoylurea insecticide currently in use to combat sea lice infestation in salmon aquaculture in Chile. With pending approval in Norway, the aim of this work was to study the uptake and toxicity of lufenuron in liver tissue of Atlantic salmon.
Pål A. Olsvik   +3 more
wiley   +1 more source

Pathology caused by introduced Neoergasilus japonicus (Copepoda: Ergasilidae) to the skin of indigenous Tilapia sparrmanii in South Africa and scanning electron microscopy study of wound‐inflicting structures

open access: yesJournal of Fish Diseases, Volume 47, Issue 1, January 2024.
Abstract Neoergasilus japonicus, a fish ectoparasite indigenous to eastern and southern Asia, has been introduced to various regions, including Europe and North and South America, where it spreads at an alarming rate. The parasite is not host‐specific. It was also collected from the Vaal‐Orange and Limpopo river systems in South Africa.
Annemariè Avenant‐Oldewage   +3 more
wiley   +1 more source

Host-Parasite-Environment Interactions on the Infestation of Argulus africanus Thiele, 1900 on Nile tilapia in Lake Hawassa, Ethiopia

open access: yesEthiopian Journal of Science and Sustainable Development
Argulus is one of the economically important ectoparasite of Nile tilapia (Oreochromis niloticus L. 1758); however, it poses a serious problem both in culture and capture fisheries globally. This investigation was done, from May 2022 to January 2023, to 
Endalkachew Daniel Achamo   +1 more
doaj   +1 more source

Pengaruh Pemberian Garam (NaCl) terhadap Kerusakan Telur Argulus Japonicus
[Effect of Salt (NaCl) Against Damage of Argulus japonicus Egg]

open access: yesJurnal Ilmiah Perikanan dan Kelautan, 2011
A. japonicus is a freshwater parasite which belonging as obligate parasite. Prevention and control of A. japonicus attacks still used an insecticides, such as organophosphates and other chemicals which are used as a control.
Kismiyati Kismiyati   +2 more
doaj   +1 more source

Low levels of crustacean parasite infestation in fish species from the Matapi River in the state of Amapá, Brazil

open access: yesRevista Brasileira de Parasitologia Veterinária
This first study investigated the crustacean parasite fauna in 66 species of fish from the Matapi River basin, state of Amapá (Brazil). Fish were collected every two months between March 2012 and August 2013, encompassing dry and rainy seasons. Among the
Ligia Rigôr Neves, Marcos Tavares-Dias
doaj   +1 more source

PERUBAHAN HEMATOLOGI IKAN MAS KOMET (Carassius auratus auratus) AKIBAT INFESTASI Argulus japonicus JANTAN dan Argulus japonicus BETINA

open access: yesJournal of Aquaculture and Fish Health, 2019
Penyakit pada budidaya ikan hias terutama yang disebabkan oleh ektoparasit. Ektoparasit merupakan salah satu penyebab menurunnya nilai jual komoditas ikan hias yang ada di Indonesia. Infestasi tingkat akut Argulus.
Fatih Riantono   +2 more
doaj   +1 more source

Prevalensi Ektoparasit yang Menyerang Benih Ikan Koi (Cyprinus carpio) di Bursa Ikan Hias Surabaya
[The Prevalence Of Ectoparasits That Attack The Seed Of Koi Fish In The Stock Of Ornamental Fish Surabaya]

open access: yesJurnal Ilmiah Perikanan dan Kelautan, 2013
As the commodity grown, ornamental fish has an interesting added value. Many things can serve as a supporting factor in conducting the business of ornamental fish, such as having economic value and many enthusiasts who already spread to the whole society.
Sri Subekti   +2 more
doaj   +1 more source

Tissue specific structural variations of mitochondria of fish ectoparasite Argulus bengalensis Ramakrishna, 1951 (Crustacea: Branchiura): Functional implications

open access: yesJournal of Advanced Research, 2014
We studied the fine structure of some classical and six variant mitochondria from different tissues viz. proboscis gland, spinal gland, ovary, testis, and muscle of a fish ectoparasite, Argulus bengalensis.
Anirban Banerjee, Samar K. Saha
doaj   +1 more source

First study on parasites of Hemibrycon surinamensis (Characidae), a host from the eastern Amazon region

open access: yesRevista Brasileira de Parasitologia Veterinária
This study was the first investigation of communities and infracommunities of parasites of Hemibrycon surinamensis. All the fish collected in a tributary of the Amazon river were parasitized by one or more parasite species. The Brillouin diversity index (
Maria Danielle Figueiredo Guimarães Hoshino   +2 more
doaj   +1 more source

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