Annual Movements of Shortnose and Atlantic Sturgeons in the Merrimack River, Massachusetts

Kieffer, Micah; Kynard, Boyd

doi:10.1577/1548-8659(1993)122<1088:amosaa>2.3.co;2

Cited by 83 publications

(90 citation statements)

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“…When the distance was long (more than 50 km), most shortnose sturgeon began migrating during the preceding winter, while a few started in the spring. When the distance was short, all shortnose sturgeon started migrating in the spring (Kieffer and Kynard 1993). We observed six male spring outmigrants (32% of the tagged male population), and three female spring outmigrants in 2004 (43% of the tagged female population).…”

Section: Movementsmentioning

confidence: 76%

“…We assumed green sturgeon were migrating for spawning purposes. Other sturgeon species initiate upstream spawning migrations in the spring (Kohlhorst et al 1991;Kieffer and Kynard 1993;Chapman and Carr 1995;McKinley et al 1998;Fox et al 2000). Some white sturgeon in the Sacramento River gather in the lower river and delta in autumn, then move up and concentrate in the upper river from March to May (Kohlhorst et al 1991).…”

Section: Movementsmentioning

confidence: 99%

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Migration and Movement Patterns of Green Sturgeon (Acipenser medirostris) in the Klamath and Trinity rivers, California, USA

Benson¹,

Turo

McCovey³

2006

Environ Biol Fish

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Green sturgeon, Acipenser medirostris, movement and migration within the Klamath and Trinity rivers were assessed using radio and sonic telemetry. Sexually mature green sturgeon were captured with gillnets in the spring, as adults migrated upstream to spawn. In total, 49 green sturgeon were tagged with radio and/or sonic telemetry tags and tracked manually or with receiver arrays from 2002 to 2004. Tagged individuals exhibited four movement patterns: upstream spawning migration, spring outmigration to the ocean, or summer holding, and outmigration after summer holding. Spawning migrations occurred from April to June, as adults moved from the ocean upstream to spawning sites. Approximately 18% of adults, those not out mignation in the spring, made spring postspawning outmigrations. The majority of adults, those not outmigrating in the spring, remained in discrete locations characterized as deep, low velocity pools for extended periods during the summer and early fall. Fall outmigration occurred when fish left summer holding locations, traveled rapidly downstream, and exited the river system. High river discharge due to the onset of winter rainstorms and freshets appear to be the key environmental cue instigating the fall outmigration.

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Section: Movementsmentioning

confidence: 76%

Section: Movementsmentioning

confidence: 99%

Migration and Movement Patterns of Green Sturgeon (Acipenser medirostris) in the Klamath and Trinity rivers, California, USA

Benson¹,

Turo

McCovey³

2006

Environ Biol Fish

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“…The shortnose sturgeon is considered a freshwater amphidromous species in the northeastern United States, rather than an anadromous one (Kieffer and Kynard 1993). Although it may exhibit a slightly greater tendency to use saline habitats in the southern portion of its range, the shortnose sturgeon rarely occurs in coastal waters where the shrimp trawl fisheries are pursued (Collins et al 1996).…”

Section: Shortnose Sturgeonmentioning

confidence: 99%

“…Therefore, fish in the southern portion of the range migrate earlier than those to the north (Kieffer and Kynard 1993;Smith 1985a). In Georgia and South Carolina, this begins in February or March (Collins et al 2000a).…”

Section: Life History Informationmentioning

confidence: 99%

Kemp's Ridley Sea Turtle Saga and Setback: Novel Analyses of Cumulative Hatchlings Released and Time-Lagged Annual Nests in Tamaulipas, Mexico

Caillouet¹,

Gallaway

Putman

2016

Chelonian Conservation and Biology

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“…The adhesive eggs are broadcast over hardbottom substrates composed of gravel and cobble (Gilbert 1989;Smith and Clugston 1997;Sulak and Clugston 1998). Previous research, including both laboratory and field studies, suggest that water temperatures of 13-25°C are optimal for egg survival and hatching (Borodin 1925;Smith 1985;Kieffer and Kynard 1993;Hatin et al 2002;Smith et al 2015).…”

mentioning

confidence: 99%

Annual Spawning Migrations of Adult Atlantic Sturgeon in the Altamaha River, Georgia

Ingram

Peterson

2016

Mar Coast Fish

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The Atlantic Sturgeon Acipenser oxyrinchus has declined throughout its range, and the species is now protected under the U.S. Endangered Species Act. Information on the timing and extent of spawning migrations is essential for the development and implementation of effective management and recovery strategies, yet this information is lacking for most populations. The objectives of this study were to document and identify temporal and spatial patterns in the seasonal movements and spawning migrations of Atlantic Sturgeon in the South Atlantic distinct population segment. A stationary array of acoustic receivers was used to monitor the movements of 45 adults in the Altamaha River system, Georgia, from April 2011 through March 2014. Telemetry data revealed that putative adult spawners exhibited two distinct patterns of upriver migration: a spring two‐step migration and a fall one‐step migration. During the spring two‐step migration, the adults appeared to stage in the upper Altamaha during the spring and early summer, before migrating to suspected spawning habitats in the Ocmulgee and Oconee tributaries during the fall. During the fall one‐step migration, fish entered the system in late summer and migrated directly upriver to suspected spawning habitats in the Ocmulgee and Oconee tributaries. Regardless of which pattern was used during the upstream migration, all fish returned downstream and left the system by early January. Although direct evidence of spawning has not yet been obtained, the telemetry and environmental data provide strong circumstantial evidence that Atlantic Sturgeon spawning in the Altamaha population occurs only during the fall months when water temperatures are less than 25°C. These findings further illustrate the clinal variation in the life history of Atlantic Sturgeon and highlight the need to manage the species as distinct population segments with regionally specific recovery goals. Received March 23, 2016; accepted September 25, 2016

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Annual Movements of Shortnose and Atlantic Sturgeons in the Merrimack River, Massachusetts

Cited by 83 publications

References 0 publications

Migration and Movement Patterns of Green Sturgeon (Acipenser medirostris) in the Klamath and Trinity rivers, California, USA

Migration and Movement Patterns of Green Sturgeon (Acipenser medirostris) in the Klamath and Trinity rivers, California, USA

Kemp's Ridley Sea Turtle Saga and Setback: Novel Analyses of Cumulative Hatchlings Released and Time-Lagged Annual Nests in Tamaulipas, Mexico

Annual Spawning Migrations of Adult Atlantic Sturgeon in the Altamaha River, Georgia

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