Results 61 to 70 of about 502 (154)

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

Phagocytosis and respiratory burst activity in lumpsucker (Cyclopterus lumpus L.) leucocytes analysed by flow cytometry. [PDF]

PLoS ONE, 2012
In the present study, we have isolated leucocytes from peripheral blood, head kidney and spleen from lumpsucker (Cyclopterus lumpus L.), and performed functional studies like phagocytosis and respiratory burst, as well as morphological and cytochemical ...
Gyri T Haugland, Ragnhild Aakre Jakobsen, Nils Vestvik, Kristian Ulven, Lene Stokka, Heidrun I Wergeland   +5 more
doaj   +1 more source

Microplastics in Commercial Fishes and By-Catch from Selected FAO Major Fishing Areas of the Southern Baltic Sea

Animals, 2023
According to recent world wide studies, microplastics (MPs) have been found in many fish species; however, the majority of research has focused only on the gastrointestinal tract, neglecting edible organs.
Paulina Piskuła, Aleksander Maria Astel
doaj   +1 more source

A half century of monitoring reveals contrasting survival responses of Icelandic seabirds to climate and fisheries pressures

Ibis, Volume 168, Issue 3, Page 950-971, July 2026.
Seabirds serve as key indicators of marine environmental changes, with adult survival being a critical parameter for assessing population health. Iceland hosts some of the largest seabird populations in the North Atlantic, making it a valuable location for studying long‐term trends in seabird demographics.
Sarah E. Gutowsky, Mark L. Mallory, Gregory J. Robertson, Anna M. Calvert, David A. Fifield, Sverrir Thorstensen, Ævar Petersen   +6 more
wiley   +1 more source

Lack of Lumpfish (Cyclopterus lumpus) Susceptibility to the Infectious Salmon Anaemia Virus (ISAV) Using In Vivo Challenges

Journal of Fish Diseases, Volume 49, Issue 7, July 2026.
ABSTRACT Infectious salmon anaemia virus (ISAV) can cause disease and mortality in Atlantic salmon (Salmo salar). The virus is endemic in several regions including the Atlantic coast of Canada. Lumpfish (Cyclopterus lumpus) are increasingly utilised as cleaner fish to control sea lice levels in Atlantic salmon farms.
Nellie Gagné, Delphine Ditlecadet, Kristine Hébert, Chantal Audet, Steven Leadbeater, Andrew K. Swanson   +5 more
wiley   +1 more source

Monitoring ocean water quality by deployment of lumpfish (Cyclopterus lumpus) eggs: In situ bioaccumulation and toxicity in embryos

Ecotoxicology and Environmental Safety, 2022
Fish embryos can bioaccumulate and are particularly sensitive to a wide range of contaminants, which makes them suitable sentinels for environmental biomonitoring.
Bjørn Henrik Hansen, Trond Nordtug, Ida Beathe Øverjordet, Lisbet Sørensen, Bjarne Kvæstad, Emlyn John Davies, Sonnich Meier, Tânia Gomes, Steven Brooks, Julia Farkas   +9 more
doaj   +1 more source

Beyond spring season: An autumn observation of adult lumpsuckers (Cyclopterus lumpus) in coastal Norway Frøya archipelago raises questions on extended spawning activity

Journal of Fish Biology, Volume 108, Issue 6, Page 2211-2215, June 2026.
Abstract During snorkelling near Frøya, central Norway, on 6 October 2025, a pair of adult lumpsuckers (Cyclopterus lumpus) was observed engaged in apparent prespawning behaviour in shallow kelp habitat. Such activity is surprising, as the species is mainly considered a spring spawner throughout the eastern Atlantic and is the focus of a targeted ...
Ole Henriksen, Mikael van Deurs, Rasmus Jacobsen, Thomas Warnar, Yvette Heimbrand   +4 more
wiley   +1 more source

Genetic structure of the lumpfish Cyclopterus lumpus across the North Atlantic [PDF]

ICES Journal of Marine Science, 2014
AbstractLumpfish, or lumpsucker, Cyclopterus lumpus (Linnaeus, 1758) is widely distributed in the North Atlantic Ocean. It has a considerable economic value and substantial fisheries occur in several North Atlantic regions owing to the use of its fully ripe internal egg masses in the ovaries as an alternative to sturgeon caviar.
Pampoulie, Christophe, Skirnisdottir, Sigurlaug, Olafsdottir, Guobjorg, Helyar, Sarah J., Thorsteinsson, Vilhjálmur, Jónsson, Sigurour P., Fréchet, Alain, Durif, Caroline M F, Sherman, Sally, Lampart-Kałuzniacka, Magdalena, Hedeholm, Rasmus, Ólafsson, Halldór, Daníelsdóttir, Anna K., Kasper, Jacob M.   +13 more
openaire   +2 more sources

Photoperiod modulates male sexual maturation in the Emperor tetra (Nematobrycon palmeri), a strictly tropical ornamental fish

Journal of the World Aquaculture Society, Volume 57, Issue 3, June 2026.
Abstract Photoperiod manipulation is widely used to regulate reproduction in temperate fish species, but little is known about its effects in strictly tropical species. This study evaluated whether the Emperor tetra (Nematobrycon palmeri), a tropical ornamental fish, can modulate sexual maturation in response to artificial light regimes.
Lury N. García, Gabriele Lara, Germán E. Merino   +2 more
wiley   +1 more source

Biocontrol for Shrimp Disease: Comprehensive Review and a Bacterial Disease Biocontrol Practice

Reviews in Aquaculture, Volume 18, Issue 3, June 2026.
ABSTRACT Biocontrol is a key strategy for disease control, as it is environmentally friendly and widely applicable. This review elaborates on biocontrol in aquaculture, particularly in shrimp culture. Biocontrol in shrimp culture mainly relies on four strategies: (i) direct kill pathogen by Bdellovibrio or bacteriophages; (ii) suppression of intestinal
Xinyi He, Jian He, Minghong Liu, Menghuang Xu, Jianjun Jiang, Minze Liao, Chengcheng Wu, Peiyun Han, Long Zhang, Shaoping Weng, Zhixun Guo, Jianguo He   +11 more
wiley   +1 more source