Results 31 to 40 of about 1,038,789 (181)
Seasonal and vertical patterns of egg-laying by the freshwater fish louse Argulus foliaceus (Crustacea: Branchiura) [PDF]
Argulus foliaceus is a damaging fish ectoparasite for which new control measures are being developed based on egg-removal. In an attempt to develop further understanding of seasonal and vertical egg-laying patterns in this parasite, egg-laying activity was monitored over the period 14 April to 17 November 2003 in 2 rainbow trout Oncorhynchus mykiss ...
Harrison, Andrew +2 more
openaire +2 more sources
Sea lice infestation level alters salmon swimming depth in sea-cages
Host-parasite systems are often characterised by a co-evolutionary arms race, with avoidance behaviour being the first line of defence for hosts. In aquatic ecosystems, the rapid rise of fish farming has elevated host abundance, altering the context of ...
S Bui, F Oppedal, L Stien, T Dempster
doaj +1 more source
Argulus japonicus Thiele, 1900 and Argulus coregoni Thorell, 1864 are ectoparasites of freshwater fishes and are known to occur in Lake Biwa and its adjacent inland waters in Shiga Prefecture, central Japan.
Kazuya Nagasawa
doaj +1 more source
Data incongruence and the problem of avian louse phylogeny [PDF]
Recent studies based on different types of data (i.e. morphological and molecular) have supported conflicting phylogenies for the genera of avian feather lice (Ischnocera: Phthiraptera).
Page, R.D.M., Smith, V.S., Johnson, K.P.
core +1 more source
The Norwegian government recently implemented a new management system to regulate salmon farming in Norway, aiming to promote environmentally sustainable growth in the aquaculture industry.
Anja Bråthen Kristoffersen +5 more
doaj +1 more source
Organophosphates (OP) are one of the major treatments used against the salmon louse (Lepeophtherius salmonis) in Norwegian salmonid aquaculture. The use of OP since the late 1970s has resulted in widespread resistant parasites.
Kiranpreet Kaur +3 more
doaj +1 more source
Comparative tests of ectoparasite species richness in seabirds [PDF]
Background: The diversity of parasites attacking a host varies substantially among different host species. Understanding the factors that explain these patterns of parasite diversity is critical to identifying the ecological principles underlying ...
Joseph Hughes +5 more
core +1 more source
Argulus nobilis Thiele, 1904 is an ectoparasite of gars (Lepisosteidae) in the U.S.A. Five female specimens of A. nobilis were found in the collection of the Lake Biwa Museum, Japan.
Kazuya Nagasawa
doaj +1 more source
The First Record of Argulus Foliacesus (Crustacea: Branchiura) Infestation on Lionhead Goldfish (Carassius Auratus) in Iran [PDF]
Argulus foliaceus (Crustacea: Branchiura), or the fish louse, is an ectoparasite of the skin or gill of the fresh water fish species. Clinical signs in infected fish include scratching on aquarium walls, erratic swimming, and poor growth.
AH Shahmoradi, Y Chelongar, V Noaman
doaj +2 more sources
Due to the reduced efficacy of delousing drugs used for sea lice control in salmon aquaculture, fish vaccines have emerged as one of the most sustainable strategies in animal health. Herein, the availability of C. rogercresseyi and Salmo salar genomes increases the capability of identifying new candidate antigens for lice vaccines using RNA sequencing ...
Antonio Casuso +2 more
openaire +3 more sources

