Salmonid fishes and the estuarine environment

@article{Thorpe1994SalmonidFA,
  title={Salmonid fishes and the estuarine environment},
  author={John E. Thorpe},
  journal={Estuaries},
  year={1994},
  volume={17},
  pages={76-93}
}
  • J. Thorpe
  • Published 1 March 1994
  • Biology
  • Estuaries
Salmonid fishes are typically anadromous, that is, they achieve the bulk of their growth in the sea, and migrate into rivers to reproduce. As juveniles, they may arrive in the estuary almost immediately after emergence from a gravel bed in the river, or after a few days, weeks, months, or years in fresh water, according to species and developmental opportunity. Thereafter, the length of estuarine residence depends on the estuary’s size, shape, and productivity; on water flow patterns and… 
Ontogeny and evolution of salinity tolerance in anadromous salmonids: Hormones and heterochrony
TLDR
Differences in developmental patterns of endocrine activity are hypothesized to be responsible for the differences in timing (heterochrony) of increased salinity tolerance among and within salmonid species.
Role of estuarine rearing for sockeye salmon in Alaska (USA)
TLDR
The findings highlight the role of estuaries for juvenile sockeye salmon in systems with limited freshwater rearing capacity and high salmon density, especially in the southern range of the species where a shifting climate and human activities are expected to most greatly impact populations.
Juvenile Salmon Usage of the Skeena River Estuary
TLDR
The results demonstrate that estuary habitats integrate species and population diversity of salmon, and that if proposed development negatively affects the salmon populations that use the estuary, then numerous fisheries would also be negatively affected.
Assessing estuaries as stopover habitats for juvenile Pacific salmon
TLDR
It is revealed that estuaries can represent stopover habitats for salmon, and that the extent varies across salmon species and populations, which indicates the importance of considering the fundamental nature of habitats through which migratory species move.
State-Dependent Migration Timing and Use of Multiple Habitat Types in Anadromous Salmonids
TLDR
A broadly applicable model of state-dependent movements among multiple habitats, which was parameterized based on a case study of steelhead Oncorhynchus mykiss in a California coastal watershed with a seasonally closed lagoonal estuary, correctly predicted population-level patterns and predicted predominance of anadromy and a dominant smolt age of 2 years.
Migratory diversity of juvenile salmon in a threatened estuary
TLDR
The diversity of migratory juvenile salmon in the estuary of the vast Skeena River, Canada, is examined to suggest that the Skeena estuary integrates multiple scales of salmon diversity, which could be compromised by impending habitat degradation.
Variability in the performance of juvenile Chinook salmon is explained primarily by when and where they resided in estuarine habitats
TLDR
The results of this 8‐year study provide a baseline of the performance of juvenile Chinook salmon to evaluate habitat restoration programs and to compare against future anthropogenic conditions and argue that a considerable improvement to the growth rate of juveniles in estuarine habitats is physiologically possible.
Flexible modes of anadromy in Baltic sea trout: making the most of marginal spawning streams
TLDR
The results emphasize the importance of the coastal zone as natal and early life habitat for sea trout in the Baltic, particularly with respect to a potential change to a warmer climate which may exacerbate conditions within small, ephemeral trout streams.
Juvenile coho salmon movement and migration through tide gates
approved: Guillermo Giannico Tidal marshlands in the upper estuary ecotone provide essential habitat for juvenile salmonids. In this environment, salmonids grow rapidly and acclimate to saltwater.
Juvenile Chinook salmon, Oncorhynchus tshawytscha, use of the Elwha river estuary prior to dam removal
The estuary of the Elwha River, on Washington’s Olympic Peninsula, has been degraded and simplified over the past century from sediment retention behind two large dams, levee construction, and
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 57 REFERENCES
Food and Habitat Utilization by Juvenile Salmonids in the Campbell River Estuary
TLDR
Salmonid behaviour and abundance in several microhabitats within the Campbell River estuary was observed monthly, from May to July, by divers using snorkels and face masks to determine if interspecific differences in diet could be correlated with differences in the habitats they occupied.
Juvenile Salmon in the Estuary and Lower Nabisipi River and Some Results of Tagging
Morphometric and hydrographic conditions indicated Nabisipi River, Quebec, has a fjord-type estuary with warm surface water of low salinity flowing out over cold saline water from the Gulf of St.
JUVENILE PACIFIC SALMON IN ESTUARIES: THE LIFE SUPPORT SYSTEM
TLDR
The value of an estuary as rearing habitat for juvenile salmon appears to be influenced by delta configuration, and by the efficiency with which allochthonous organic carbon is trapped.
Coastal populations of brook trout, Salvelinus fontinalis, in Lac Guillaume-Delisle (Richmond Gulf) Québec
TLDR
Brook trout grow slowly in coastal streams and resident fish average only 15.6 cm during their fourth summer, but movements at sea and duration of residence are controlled by salinity and temperature as influenced by maturation.
Movements of Atlantic salmon, Salmo salar L., in an estuary in south-west England
In the years 1985–1987, salmon were tracked in the estuary of the River Fowey, Cornwall using the ‘sonar buoy’ system developed at the M.A.F.F. Fisheries laboratory and described by Solomon & Potter
THE ROLE OF PUGET SOUND AND WASHINGTON COASTAL ESTUARIES IN THE LIFE HISTORY OF PACIFIC SALMON: AN UNAPPRECIATED FUNCTION
TLDR
It is hypothesized that Pacific salmon use Washington's estuaries for: 1) productive foraging, 2) physiological transition, and 3) refugia from predators, and these functions have probably changed due to salmon culture practices and alterations of estuarine habitat, and are possible these changes could adversely impact salmon growth and survival.
Life History of Sea-Running Brook Trout (Salvelinus fontinalis) of Moser River, N.S.
TLDR
These trout agree with the local salmon in having smolts that become silvery before migration and that are two or three years old.
Experimental sea ranching of brook trout, Salvelinus fontinalis Mitchill
TLDR
Comparisons between the results and data on other anadromous Salvelinus species underscore the potential for sea-ranching of trout and char as a moderate effort, high yield aquaculture technique.
LIFE HISTORY OF FALL-RUN JUVENILE CHINOOK SALMON, ONCORHYNCHUS TSHAWYTSCHA, IN THE SACRAMENTO-SAN JOAQUIN ESTUARY, CALIFORNIA
Abstract The Sacramento-San Joaquin Estuary is one of the largest on the Pacific Coast and supports a variety of anadromous species. Fall-run chinook salmon, the dominant race in the system, utilize
Survival, Contribution, and Return of Hatchery Coho Salmon (Oncorhynchus kisutch) Released into Freshwater, Estuarine, and Marine Environments
TLDR
Six groups of marked yearling hatchery coho salmon (Oncorhynchus kisutch) were released in six locations each year for five years beginning with the 1981 brood, finding a 1.6-fold increase in the survival index and a 2.5-fold rise in the contribution to the Columbia River gillnet fishery from the fish released at Tongue Point compared with the control group.
...
1
2
3
4
5
...