Genetic diversity of invasive and native Cichla (Pisces: Perciformes) populations in Brazil with evidence of interspecific hybridizationJournal of Fish Biology - Tập 69 Số sb - Trang 260-277 - 2006
Alessandra Valéria de Oliveira, Alberto José Prioli, Sônia Maria Alves Pinto Prioli, Thaís Souto Bignotto, Horácio Ferreira Júlio, Helaine Carrer, Carlos Sérgio Agostinho, Laudenir M. Prioli
Invasive and native populations of the Amazonian fishes ‘peacock bass’Cichla monoculus and of a not yet described species ‘blue tucunaré’ here referred as Cichla sp. ‘Azul’ were analysed for genetic diversity using the hypervariable domain of the mitochondrial DNA (mtDNA) control region plus steady diagnostic random amplified polymorphi...... hiện toàn bộ
Current issues in fish welfareJournal of Fish Biology - Tập 68 Số 2 - Trang 332-372 - 2006
Felicity A. Huntingford, Colin E. Adams, Victoria A. Braithwaite, Sunil Kadri, T.G. Pottinger, Peter Sandøe, James Turnbull
Human beings may affect the welfare of fish through fisheries, aquaculture and a number of other activities. There is no agreement on just how to weigh the concern for welfare of fish against the human interests involved, but ethical frameworks exist that suggest how this might be approached.Different definitions of animal welfare focus on an animal's condition, on its sub...... hiện toàn bộ
Migration of wild and hatchery reared smolts of Atlantic salmon, Salmo salar L., through lakesJournal of Fish Biology - Tập 25 Số 5 - Trang 617-623 - 1984
Lars P. Hansen, Bror Jönsson, Kjell B. Døving
In 1982 and 1983 descending wild Atlantic salmon smolts, Salmo salar L., were caught in a fish‐trap at the mouth of the River Imsa. Together with hatchery‐reared smolts of the River Imsa strain they were tagged and released at three different sites of the Imsa‐Lutsi watercourse: in the Imsa River 1 km above the trap, and in two lakes, 3 and 11 km upstream of the ...... hiện toàn bộ
Climate change effects on fishes and fisheries: towards a cause‐and‐effect understandingJournal of Fish Biology - Tập 77 Số 8 - Trang 1745-1779 - 2010
Hans‐Otto Pörtner, Myron A. Peck
Ongoing climate change is predicted to affect individual organisms during all life stages, thereby affecting populations of a species, communities and the functioning of ecosystems. These effects of climate change can be direct, through changing water temperatures and associated phenologies, the lengths and frequency of hypoxia events, through ongoing ocean acidification trends or through ...... hiện toàn bộ
Spatial and temporal scales of adaptive divergence in marine fishes and the implications for conservationJournal of Fish Biology - Tập 69 Số sc - Trang 21-47 - 2006
David O. Conover, Lora M. Clarke, Stephan B. Munch, Glenn N. Wagner
Knowledge of geographic and temporal scales of adaptive genetic variation is crucial to species conservation, yet understanding of these phenomena, particularly in marine systems, is scant. Until recently, the belief has been that because most marine species have highly dispersive or mobile life stages, local adaptation could occur only on broad geographic scales. This view is supported by...... hiện toàn bộ
Behavioural responses of salmonid fry to low amino acid concentrationsJournal of Fish Biology - Tập 34 Số 2 - Trang 223-232 - 1989
Kathryn Mearns
The behaviour of start feed brown trout, Salmo trutla, and Atlantic salmon, Salmo salar, fry was observed in response to 5, 50 and 500 nM concentrations of L‐alanine, L‐proline, L‐arginine and glycine. In addition, salmon fry were tested with dilute concentrations of shrimp extract. Five behaviour patterns (snap, ya...... hiện toàn bộ