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Showing 1 to 20 of 28 for “"Alosa"”.
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Parasites de l'alose d'été, Alosa aestivalis (Mitchill, 1915) et du gaspareau Alosa pseudoharengus (Wilson, 1811), de la rivière Miramichi, Nouveau-Brunswick
… de 100 spécimens chacun d’aloses d’été, Alosa aestivalis et du gaspareau, Alosa pseudoharengus de l’estuaire Northwest de la rivière Miramichi, N.-B. Huit des 12 parasites rencontrés chez le gaspareau et l’ensemble de ceux de l’alose d’été furent identifiés pour la première fois chez ces …
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Genetic evaluation of American shad Alosa sapidissima restoration success in James River, Virginia
The American shad Alosa sapidissima has experienced severe declines throughout its native range due to habitat degradation, fragmentation, and over-fishing. Hatchery supplementation is often used for stock restoration, but the effects of supplementation on population structure and genetic diversity …
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Migratory patterns of American shad (Alosa sapidissima) revealed by natural geochemical tags in otoliths
… of river-specific signatures in American shad (Alosa sapidissima), an anadromous clupeid native to the Atlantic coast of North America, stable isotope and elemental ratios in otoliths of juvenile American shad produced accurate natal tags from 12 rivers. Significant inter-annual variability in …
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CHARACTERIZATION OF MICROSATELLITE LOCI AND PILOT POPULATION GENETIC ANALYSIS IN HICKORY SHAD, ALOSA MEDIOCRIS
The hickory shad (Alosa mediocris) is a relatively understudied species of the anadromous fish sub-family Alosinae. This study, the first population genetic analysis of this species, employed 12 neutral microsatellite loci to estimate genetic diversity and population structure in tributaries of …
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Η ΑΥΤΟΟΙΚΟΛΟΓΙΑ ΤΟΥ ΕΝΔΗΜΙΚΟΥ ΕΙΔΟΥΣ ALOSA (CASPIALOSA) MACEDONICA (VINCIGUERRA), (PISCES: CLUPEIDAE), ΤΗΣ ΛΙΜΝΗΣ ΒΟΛΒΗΣ
… OF THE PRESENCE OF THE ENDEMIC SPECIES. ALOSA MACEDONICA IN LAKE VOLVI. THE SECOND PART CONSTITUTES THE MAIN SUBJECT OF THE WORK WHICH CONTAINS THE STUDY OF THE AGE, GROWTH AND COMPOSITION OF THE SPECIES POPULATION. THETHIRD PART IS REFERRING TO THE FISHERY OF THE SPECIES, ITS REMOVAL AND …
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Migratory patterns of American shad (Alosa sapidissima) revealed by natural geochemical tags in otoliths
… of river-specific signatures in American shad (Alosa sapidissima), an anadromous clupeid native to the Atlantic coast of North America, stable isotope and elemental ratios in otoliths of juvenile American shad produced accurate natal tags from 12 rivers. Significant inter-annual variability in …
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Reproduction and early life history of a landlocked population of alewife (Alosa pseudoharencus) in Claytor Lake, Virginia
Alewives in Claytor Lake matured at age I at 160 mm TL. Fecundity of gravid females increased with age and length, ranging from 17,307 eggs at age I to 37,147 eggs at age III. The majority of alewife spawning was concentrated in littoral areas of a large embayment. Spawning period was protracted …
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Movement ecology of two threatened anadromous species, twaite shad Alosa fallax and sea lamprey Petromyzon marinus, revealed by acoustic telemetry.
… the movement ecology of threatened twaite shad Alosa fallax (‘shad’) and sea lamprey Petromyzon marinus was investigated using acoustic telemetry during and between their spawning migrations in the heavily fragmented lower River Severn catchment in western Britain. Fish passage studies often …
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Compatibility and complementarity of alewife (Alosa pseudoharengus) and gizzard shad (Dorosoma cepedianum) as forage fish in Smith Mountain Lake, Virginia
The attributes of alewife and gizzard shad as coexistent forage fishes for striped bass (Morone saxatilis), walleye (Stizostedion vitreum vitreum) and largemouth bass (Micropterus salmoides) were evaluated in Smith Mountain Lake, an 8,337 ha hydroelectric impoundment in south-central Virginia. …
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Trophic ecology of an introduced, land-locked alewife (Alosa pseudoharengus) population and assessment of alewife impact on resident sportfish and crustacean zooplankton communities in Claytor Lake, Virginia
Analysis of trophic and population ecology of an introduced (1968- 1969) alewife forage base and resident sportfishes (age 0 and older) indicated several negative trophic interactions within the community complex of Claytor Lake, Virginia. Alewife piscivority represents a potentially significant …
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Overwintering abundance and distribution of striped bass (Morone saxtilis) in the Hudson River estuary using hydroacoustic techniques
… of striped bass populations on the various Alosa populations in the Hudson River. Of primary interest was the affect of increasing striped bass numbers on already dwindling American shad (Alosa sapidissima) populations. Results from this modeling exercise showed that striped bass have the …
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Habitat relationships for alewives and blueback herring in a Virginia stream
… and stream use by spawning alewife (Alosa pseudoharengus) and blueback herring (Alosa aestivalis) in the Rappahannock River drainage were identified. Trends in fish use of 72 tributaries were determined by consulting eighty-eight people from the Rappahannock River area through a …
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Acoustic scattering by axisymmertic finite-length bodies with application to fish : measurement and modeling
… has been conducted involving alewife fish (Alosa pseudoharengus), which are morphologically similar to the Atlantic herring (Clupea harengus). A greater-than-octave bandwidth (40-95 kHz), shaped, linearly swept, frequency modulated signal was used to insonify live, adult alewife that were …
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Interpreting Predator – Prey Interactions in Cayuga Lake Fishes Using Fatty Acid Signature Analysis
… to two major prey species in the lake; alewife (Alosa pseudoharengus) and round goby (Neogobius melanostomus). The main objectives of the study were to assess FAS dissimilarity between prey species and then compare each prey FAS to lake trout FAS. Fish were collected in 2014 and 2015 using seine …
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Bayesian hierarchical approaches to analyze spatiotemporal dynamics of fish populations
… influence on stock estimates. American Shad (Alosa sapidissima), Hickory Shad (A. mediocris) and river herrings, including Alewife (A. pseudoharengus) and Blueback Herring (A. aestivalis), are anadromous pelagic fishes that spend most of the annual cycle at sea and enter coastal rivers in …
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Spatial and Temporal Patterns of Anadromous Fish Passage at Boshers Dam Vertical Slot Fishway on the James River, Richmond, Virginia
… environmental predictors of American shad (Alosa sapidissima) and sea lamprey (Petromyzon marinus) passage. The ecological effects of restoring connectivity to upstream habitat for gizzard shad (Dorosoma cepedianum) and blue catfish (Ictalurus furcatus) are also discussed. Regression …
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Trophic interactions between larval gizzard shad and resident zooplanktivores in Claytor Lake, Virginia
… with both larval Lepomis spp. and larval alewife Alosa pseudoharengus. Peak larval shad density (0.04-0.06 fish/m3) was two to three orders of magnitude less than that reported from other reservoir systems, slightly less than that of larval alewife in Claytor Lake (0.05-0.07 fish/m3), and …
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Acoustic scattering by axisymmetric finite-length bodies with application to fish : measurement and modeling
… has been conducted involving alewife fish (Alosa pseudoharengus), which are morphologically similar to the Atlantic herring (Clupea harengus). A greater-than-octave bandwidth (40-95 kHz), shaped, linearly swept, frequency modulated signal was used to insonify live, adult alewife that were …
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Diet Analysis of Burbot from Eastern Lake Michigan: 1999-2012
… of sculpin (<em>Cottus</em>), alewife (<em>Alosa pseudoharengus</em>), and ninespine stickleback (<em>Pungitius pungitius</em>) to burbot diet decreased from ~80% before 2006 to ~15% in 2012. During the same time span, round goby (<em>Neogobius melanostomus</em>) contribution to burbot diet …
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