Results 41 to 50 of about 499 (161)

Consumer’s perception and acceptance of lumpfish used in salmon cages

Aquaculture International, 2023
AbstractLumpfish (Cyclopterus lumpus) are used as cleaner fish in salmon aquaculture to treat sea lice. However, after 18–24 months and reaching 0.4–0.6 kg, the fish is removed from the salmon cage and usually discarded, which raises social, economic, and environmental challenges, as well as ethical concerns.
Thong, Nguyen Tien, Ngoc, Quach Thi Khanh, Voldnes, Gøril   +2 more
openaire   +2 more sources

Lumpfish Cyclopterus lumpus reproduction: Pituitary gene expression, physiological and morphological changes accompanying gonadal maturation

Aquaculture, 2023
Lumpfish is the most important cleanerfish species in Atlantic salmon farming. Detailed information on the gonadal maturation process is a prerequisite for year-round production of juvenile lumpfish. In the present study we have described physiological, morphological and endocrine events associated with the annual reproductive cycle in lumpfish of both
Andersson, Eva, Denker, Elsa, Norberg, Birgitta, Schulz, Rüdiger W., Olausson, Sara, Thorsen, Anders, Stefansson, Sigurd Olav, Imsland, Albert   +7 more
openaire   +5 more sources

Comparative Genomics Analysis of Vibrio anguillarum Isolated from Lumpfish (Cyclopterus lumpus) in Newfoundland Reveal Novel Chromosomal Organizations

Microorganisms, 2020
Vibrio anguillarum is a Gram-negative marine pathogen causative agent of vibriosis in a wide range of hosts, including invertebrates and teleosts. Lumpfish (Cyclopterus lumpus), a native fish of the North Atlantic Ocean, is utilized as cleaner fish to ...
Ignacio Vasquez, Trung Cao, Setu Chakraborty, Hajarooba Gnanagobal, Nicole O’Brien, Jennifer Monk, Danny Boyce, Jillian D. Westcott, Javier Santander   +8 more
doaj   +1 more source

Take my breath away: Defining the oxygen saturation threshold for fish cortisol stress response

Journal of Fish Biology, EarlyView.
Abstract Human activities are affecting the number, size and severity of hypoxic zones in aquatic ecosystems. As oxygen is one of the most important abiotic factors affecting fish biology, exposure to low levels of dissolved oxygen may lead to a reduction in fitness.
Sébastien Alfonso, Benjamin Geffroy, Pierluigi Carbonara, Lola Toomey, Eduardo Bessa   +4 more
wiley   +1 more source

Changes in the Skin Proteome and Signs of Allostatic Overload Type 2, Chronic Stress, in Response to Repeated Overcrowding of Lumpfish (Cyclopterus lumpus L.)

Frontiers in Marine Science, 2022
Lumpfish (Cyclopterus lumpus L) is a North Atlantic species harvested for its roe and increasingly used as a cleanerfish in Atlantic salmon (Salmo salar L.) farming to remove salmon louse (Lepeophtheirus salmonis).
Deepti M. Patel, Monica F. Brinchmann, Anna Hanssen, Martin H. Iversen   +3 more
doaj   +1 more source

Biofluorescence in polar zoarcid eelpouts: The Arctic eelpout Lycodes reticulatus (Reinhardt, 1835) and the Antarctic eelpout Pachycara brachycephalum (Pappenheim, 1912)

Journal of Fish Biology, EarlyView.
Abstract Biofluorescence is widespread among marine fish but remains poorly documented in polar ecosystems. Using hyperspectral imaging, we report fluorescent emissions in two polar zoarcid eelpouts. A captive Antarctic eelpout (Pachycara brachycephalum) displayed uniform bright green fluorescence (~500–520 nm), whereas an Arctic eelpout (Lycodes ...
Thomas Juhasz‐Dora, Matthew Slater, Amirhossein Karamyar, Stein‐Kato Lindberg   +3 more
wiley   +1 more source

Ocular Manifestations of Infectious Salmon Anaemia Virus Infection in Atlantic Salmon (Salmo salar)

Journal of Fish Diseases, EarlyView.
ABSTRACT Eyes are essential sensory organs needed by teleost Atlantic salmon for high visual acuity and survival in both the wild and in aquaculture settings. In this work, we assessed the ocular manifestations of Infectious Salmon Anaemia Virus (ISAV) infection in Atlantic salmon by a cohabitation‐mediated infection assay and histological and ...
Emily Mahon, Rebecca R. Kwabiah, Hélène Paradis, Manuel A. Soto‐Dávila, Sathees Duglas, Raja Ram Gurung, Thurka Paramanathan, Ignacio Vasquez, Shams Al‐Badoosh, John Law, Javier Santander, Mark D. Fast, Robert L. Gendron   +12 more
wiley   +1 more source

Piscirickettsiosis in Farmed Turbot, Scophthalmus maximus

Journal of Fish Diseases, Volume 49, Issue 9, September 2026.
ABSTRACT Piscirickettsia salmonis is a well‐established intracellular pathogen of farmed Atlantic salmon around the world. The bacterium has also been detected from a number of other hosts including lumpfish (Cyclopterus lumpus), seabass (Dicentrarchus labrax) and rainbow trout (Oncorhynchus mykiss).
Hanne K. Nilsen, Magne Kjerulf Hansen, Raoul Kuiper, Jan Inge Øvrebø, Kjersti Sturød, Maryam Saghafian, Snorre Gulla, Anne Berit Olsen, Duncan J. Colquhoun, Ole Bendik Dale   +9 more
wiley   +1 more source

Lumpfish physiological response to chronic stress

Frontiers in Marine Science
In this study, we explored the effects of chronic stress on lumpfish (Cyclopterus lumpus) physiological, immune response, health, and plasma free amino acids. 3 groups of lumpfish were exposed to 1-minute air exposure. 1 group was exposed to stress once per week, a second group exposed 2 times per week, and a third group exposed 4 times per week.
Tiago da Santa Lopes, Tiago da Santa Lopes, Tiago da Santa Lopes, Benjamin Costas, Benjamin Costas, Lourenço Ramos-Pinto, Patrick Reynolds, Albert K. D. Imsland, Albert K. D. Imsland, Cláudia Aragão, Cláudia Aragão, Jorge M. O. Fernandes   +11 more
openaire   +5 more sources

From the brink of extinction to regulation: northern Europe's white‐tailed eagles now face density dependence and climate constraints after rapid population growth

Oikos, Volume 2026, Issue 7, July 2026.
Population growth reflects the combined influence of regulation and density‐independent factors operating through demographic processes. Under exceptional circumstances (e.g. populations recovering from near‐extinction), growth may initially be weakly regulated but typically slows as negative density dependence (NDD) sets in.
Bård‐Jørgen Bårdsen, Elisabeth Hansen, Jan Ove Bustnes   +2 more
wiley   +1 more source