As a consequence of increasing atmospheric CO2, the world's oceans are becoming warmer and more acidic. Whilst the ecological effects of these changes are poorly understood, it has been suggested that fish performance including growth will be reduced mainly as a result of limitations in oxygen transport capacity. Contrary to the predictions given by the oxygen- and capacity-limited thermal tole...

Müller [1] was the first to describe a monogenean, collected from the skin of the halibut (Hippoglossus hippoglossus). However, he regarded the parasite as a leech and named it Hirudo hippoglossi. It was not until 1858 that its status as a monogenean was established by van Beneden [2] and named Epibdella (now Entobdella) hippoglossi. Van Beneden published a detailed and accurate description of ...

Understanding the impacts of recreational fishing on habitats and species, as well as the social and ecological importance of place to anglers, requires information on the spatial distribution of fishing activities. This study documented long-term changes in core fishing areas of a major recreational fishery in Alaska and identified biological, regulatory, social, and economic drivers of spatia...

Physical damage among farmed Atlantic halibut, comprising injuries to eyes, pectoral fins and tails, first becomes apparent post-weaning. This study examined social interactions in farmed halibut, to determine whether potentially serious aggression occurred in fish of different age classes in which injury has been reported. Specific aims were to understand the context in which such behaviour ha...

Extracellular vesicles (EVs) are lipid bilayer which released from cells and play multifaceted roles in cellular communication health disease. EVs can be isolated various body fluids, including serum plasma, usable biomarkers as they inform status. Studies on an emerging research field teleost fish, with accumulating evidence for important functions immunity homeostasis, but remain to character...

Genes encoding the myogenic regulating factors MyoD and myogenin and the structural muscle proteins myosin light chain 2 (MyLC2) and myosin heavy chain (MyHC) were isolated from juvenile Atlantic halibut (Hippoglossus hippoglossus L.). The impact of temperature on their temporal and spatial expression during somitogenesis were examined by incubating halibut embryos at 4, 6 and 8 degrees C, and ...

The groundfish complex is the most abundant fisheries resource off Alaska, with a combined biomass of more than 21.8 million metric tons (t). About 76% of the biomass is found in the Bering Sea and Aleutian Islands region, with the remainder in the Gulf of Alaska. From 2004 to 2006, groundfish catches averaged nearly 2.2 million t or about 10% of the total groundfish biomass, although harvest r...

An abundance of studies in marine systems have documented species range shifts response to climate change, and many more used distribution models project ranges under future conditions. However, there is increasing interest moving beyond a single-species focus understand how redistribution alters ecosystem dynamics via changes trophic interactions. We employed spatiotemporal characterize decada...

body fluids (Evans, 1993) is reflected in their eggs (Davenport et al., 1981; Riis-Vestergaard, 1982; Watanabe and Kuo, 1986; Mangor-Jensen, 1987; LaFleur and Thomas, 1991). However, these eggs have none of the advantages of the adult osmoregulatory organs associated with homeostasis, and the typical drinking activity seems to start at, or shortly before, hatching (Guggino, 1980; Mangor-Jensen ...