Spawning and early life history of a northern population of striped bass (Morone saxatilis) in the Miramichi River estuary, Gulf of St. Lawrence

1996 ◽  
Vol 74 (9) ◽  
pp. 1645-1655 ◽  
Author(s):  
Kimberly A. Robichaud-LeBlanc ◽  
Simon C. Courtenay ◽  
Andrea Locke
Keyword(s):  
Striped Bass ◽  
River Estuary ◽  
Morone Saxatilis ◽  
Early Life History ◽  
Northern Population ◽  
Salt Wedge ◽  
Larval Stages ◽  
Egg Density ◽  
History Of ◽  
St Lawrence River

Ichthyoplankton surveys between 14 May and 15 July 1992 in the tidal fresh waters of the Northwest Miramichi River, New Brunswick, provide the first description of spawning by striped bass, Morone saxatilis, in any Gulf of St. Lawrence river. Surveys showed that striped bass spawned between late May and mid-June. Most eggs were produced in a single brief peak of abundance between 31 May and 2 June at daily average surface water temperatures of 15.6–16.6 °C. Spawning occurred largely within the first 12 km of tidal fresh water above the edge of the salt wedge. Peak spawning was centred along a 2-km stretch of river directly upriver of the salt wedge. Peak densities of larval stages were found near or upstream of the area of peak egg density. Larval densities were highest near the salt wedge.

Early Life History of Fishes in the San Francisco Estuary and Watershed

2004 ◽  
Keyword(s):  
Growth Rate ◽  
San Francisco ◽  
Striped Bass ◽  
Growth Rates ◽  
Early Life History ◽  
San Francisco Estuary ◽  
Annual Growth ◽  
Factors Affecting ◽  
Juvenile Abundance ◽  
History Of

<em>Abstract.</em>—We investigated factors affecting growth of larval striped bass <em>Morone saxatilis </em>in the San Francisco Estuary from 1984 to 1993. We estimated ages and growth rates of larval striped bass from daily otolith increments. Mean annual growth rates of 6–14 mm standard length striped bass varied from 0.13 to 0.27mm/d, the lowest rate occurring in 1989 and the highest in 1992. The 1989 growth rate was significantly lower than all other years, and growth rates for 1992 and 1993 were significantly higher than all other years, but did not differ from one another. Differences in annual growth rates apparently were due mainly to differences in mean annual prey densities because growth rate increased as prey density increased. Compared to both laboratory measured growth rates and growth rates of field-caught Chesapeake Bay larvae, growth rates from the San Francisco Estuary appeared to be high for the food available, indicating that larvae can grow at relatively high rates even at low prey densities. Correlation analyses did not support density-dependent control of growth rates. Growth rate was not significantly related to mean annual conductivity, water temperature, mortality rates, or the juvenile abundance index, but was significantly and positively correlated with densities of 1-mm length-groups of 9–14-mm striped bass.

Impact of age-0 bluefish (Pomatomus saltatrix) predation on age-0 fishes in the Hudson River estuary: evidence for density-dependent loss of juvenile striped bass (Morone saxatilis)

1999 ◽  
Vol 56 (2) ◽  
pp. 275-287 ◽  
Author(s):  
Jeffrey A Buckel ◽  
David O Conover ◽  
Nancy D Steinberg ◽  
Kim A McKown
Keyword(s):  
Striped Bass ◽  
River Estuary ◽  
Morone Saxatilis ◽  
Hudson River ◽  
Early Summer ◽  
Hudson River Estuary ◽  
Estuarine Fish ◽  
Pomatomus Saltatrix ◽  
Substantial Impact ◽  
Density Dependent

We measured bluefish (Pomatomus saltatrix) weights, densities, and prey sizes during the summers of 1992 and 1993 and diets over a 4-year period (1990-1993) in the Hudson River estuary. This information was used to estimate the loss of young-of-the-year (YOY) striped bass (Morone saxatilis) resulting from YOY bluefish predation. We then compared this predation mortality with the total loss of striped bass in the system. Data from sampling surveys conducted since the mid-1970's were used to examine relationships between bluefish abundance and striped bass recruitment levels. YOY striped bass, bay anchovy (Anchoa mitchilli), Atlantic silverside (Menidia menidia), and Alosa spp. dominated YOY bluefish diets. There were ontogenetic and interannual differences in YOY bluefish diets. Bluefish avoided striped bass at low densities but selected for them at high densities, suggesting a density-dependent feeding response. In the early summer of 1993, bluefish predation accounted for 50-100% of the total estimated loss of YOY striped bass. A significant negative correlation exists between the relative magnitude of striped bass recruitment and bluefish abundance. We conclude that YOY bluefish are important predators of estuarine fish and can have a substantial impact on their recruitment.

Estuarine Ichthyoplankton Ecology in Relation to Hydrology and Zooplankton Dynamics in salt-wedge Estuary

1996 ◽  
Vol 47 (2) ◽  
pp. 99 ◽  
Author(s):  
GM Newton
Keyword(s):  
Water Temperature ◽  
Fish Larvae ◽  
River Estuary ◽  
Extended Period ◽  
Salt Wedge ◽  
Larval Stages ◽  
Black Bream ◽  
Stable Conditions ◽  
Maximum Water Temperature ◽  
High Concentrations

The ichthyoplankton assemblage of the Hopkins River estuary, Victoria, was dominated by estuarine taxa that included demersal (goby, gudgeon) and pelagic (black bream, estuary perch, anchovy) species. The two seasonal peaks in fish larvae abundance were related to (1) the spring/summer zooplankton increase that occurred after flooding of the estuary and was comprised predominantly of copepod nauplii, thereby providing a good prey field for very young fish larvae, and (2) the autumn zooplankton maxima, which would provide a wide selection of copepod stages and meroplankton and promote dietary partitioning and flexibility among older larval stages. The two peaks in fish larvae abundance occurred well before and well after the attainment of maximum water temperature in the estuary. Goby, gudgeon, estuary perch and anchovy larvae were in the plankton over an extended period coinciding with the more stable conditions of salt-wedge presence and maximum zooplankton densities. The spawning of black bream and anchovies in the estuary was clearly related to physical conditions, such as salinity and water temperature, and habitat-although spawning of both species also occurred at times of high concentrations of potential prey organisms for their larvae. Adults of all the above fish species appear to have evolved spawning strategies that are adapted to the average hydrological and biological conditions in the estuary that would lead to the enhanced survival of their larvae. With the exception of the black bream, it appears that a ubiquitous and prolonged rather than a synchronous and confined spawning strategy is more widely used by estuarine-spawning fishes in the Hopkins River estuary. This type of spawning strategy, combined with the generally high density of food available to fish larvae in estuaries, suggests that the match-mismatch hypothesis of Cushing may be less relevant in the estuarine than in the marine environment.

Early Life History of Fishes in the San Francisco Estuary and Watershed

2004 ◽  
Keyword(s):  
San Francisco ◽  
Striped Bass ◽  
Vertical Migration ◽  
Early Life ◽  
Life Histories ◽  
Early Life History ◽  
Small Surface ◽  
Delta Smelt ◽  
Larval Fishes ◽  
History Of

<em>Abstract.</em>—The goal of this study was to determine if the vertical distribution of larval delta smelt <em>Hypomesus transpacificus </em>and striped bass <em>Morone saxatilis </em>was affected by tidal stage and diel period. Delta smelt and striped bass have similar early life histories in that their larvae drift downstream from freshwater spawning habitats to brackish water rearing habitats. Little is known on whether the larvae undergo a vertical migration as they move downstream. Conical plankton nets were used to collect larval fishes from the surface, middle, and bottom sections of the main channels of the Sacramento and San Joaquin rivers. Samples were collected over six paired day–night cruises. Approximately 45,000 fish were collected; 82% were striped bass and 2% were delta smelt. More delta smelt were caught at night than during the day, and more at middle depth than surface or bottom. Very few striped bass were found at surface during day; most were caught at middle depth. Both species were fairly dispersed throughout the water column at night. Although striped bass larvae appear to undergo a small surface to middepth migration, this study indicates that larval delta smelt and striped bass do not undergo a mass diel or tidal vertical migration as they drift down the Sacramento and San Joaquin rivers.

Thermal tolerance of a northern population of striped bass Morone saxatilis

2006 ◽  
Vol 69 (5) ◽  
pp. 1482-1490 ◽  
Author(s):  
A. M. Cook ◽  
J. Duston ◽  
R. G. Bradford
Keyword(s):  
Striped Bass ◽  
Thermal Tolerance ◽  
Morone Saxatilis ◽  
Northern Population

Feeding habits of age-0 striped bass,Morone saxatilis, in the mid-Hudson River estuary: Temporal, spatial, and ontogenetic variation

Estuaries ◽  
2003 ◽  
Vol 26 (6) ◽  
pp. 1486-1493 ◽  
Author(s):  
Rebecca C. Jordan ◽  
David V. Howe ◽  
Thomas P. Hurst ◽  
Francis Juanes
Keyword(s):  
Striped Bass ◽  
Feeding Habits ◽  
River Estuary ◽  
Morone Saxatilis ◽  
Hudson River ◽  
Hudson River Estuary ◽  
Ontogenetic Variation

Early Life History of Striped Bass in the Chesapeake and Delaware Canal and Vicinity

1981 ◽  
Vol 110 (1) ◽  
pp. 137-150 ◽  
Author(s):  
Ronnie J. Kernehan ◽  
Michael R. Headrick ◽  
Reinald E. Smith
Keyword(s):  
Life History ◽  
Striped Bass ◽  
Early Life ◽  
Early Life History ◽  
History Of
Sign in / Sign up

Export Citation Format

Share Document