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Dissertations / Theses on the topic 'Gizzard shad'

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Published: 4 June 2021

Last updated: 31 January 2023

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1

Puckridge, James Terence. "The life history of a gizzard shad, the bony bream, Nematalosa erebi (Gunther) (Dorosomatinae, Teleosti) in the lower River Murray, South Australia." Title page, contents and summary only, 1988. http://web4.library.adelaide.edu.au/theses/09SM/09smp977.pdf.

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2

Knight, Amelia Cassidy Terhune Jeffery S. "General fish health assessment and age evaluation of impinged fish at steam generating power plants." Auburn, Ala, 2008. http://repo.lib.auburn.edu/EtdRoot/2008/FALL/Fisheries_and_Allied_Aquacultures/Thesis/Knight_Amelia_50.pdf.

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3

Small, Ron. "Trophic interactions between larval gizzard shad and resident zooplanktivores in Claytor Lake, Virginia." Thesis, Virginia Tech, 2002. http://hdl.handle.net/10919/35261.

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Anglers unlawfully introduced gizzard shad Dorosoma cepedianum into Claytor Lake, Virginia in the late 1980s, apparently with the intention of improving the sportfishery by adding an additional clupeid prey resource. This study examined the trophic interactions between larval shad and resident zooplanktivorous fishes, in an attempt to discover the potential for trophic competition and negative impacts to these fish species. Ichthyoplankton sampling in 1997 and 1998 showed that peak abundances of larval shad overlapped temporally and spatially 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 significantly less than that of larval Lepomis spp. in Claytor Lake (0.28-0.51 fish/m3). Diet overlap values indicated potential resource overlap among all three larval taxa. Diet of larval shad did not overlap with that of either age-0 Micropterus spp. or adult alewife. All species of limnetic larvae examined showed feeding preferences for Diaphanosoma and copepod nauplii. Crustacean zooplankton densities did not respond negatively to peak larval fish abundances, and never dropped below 250-400 organisms/L. In Claytor Lake, the impact of trophic competition with larval gizzard shad on other zooplanktivores currently appears to be minimized by low densities of larval shad and abundant crustacean zooplankton.
Master of Science

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4

Sullivan, Christopher Lee. "Zooplankton, gizzard shad, and freshwater drum : interactions in a Great Plains irrigation reservoir / by Christopher Lee Sullivan." Kearney, Neb. : University of Nebraska-Kearney, 2009. http://www.nlc.state.ne.us/epubs/C2800/B007-2009.pdf.

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5

Dettmers, John Michael. "Food consumption by larval gizzard shad: zooplankton effects and its implications for reservoir communities." The Ohio State University, 1991. http://rave.ohiolink.edu/etdc/view?acc_num=osu1384355458.

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6

Bonds, Charles Craig. "Assessment of the Response of Piscivorous Sportfishes to the Establishment of Gizzard Shad in Claytor Lake, Virginia." Thesis, Virginia Tech, 2000. http://hdl.handle.net/10919/31645.

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Gizzard shad were illegally introduced to Claytor Lake in the late 1980s and soon established a thriving population. This study assessed 1) the degree to which gizzard shad were utilized by piscivores (pelagic - striped bass Morone saxatilis, hybrid striped bass M. chrysops x M. saxatilis, and walleye Stizostedion vitreum, and three littoral black basses Micropterus spp.), 2) the availability of gizzard shad as potential prey as determined from age and growth analysis, and 3) the performance (growth rates, relative weight, and relative abundance) of piscivores before versus after gizzard shad establishment. Gizzard shad were more highly utilized by pelagic predators (especially striped bass and their hybrids) than black basses. Rapid growth of gizzard shad (mean back-calculated length at age-1 = 155 mm TL) meant that almost all morphologically available shad were age-0. The reliance on one edible age class of gizzard shad resulted in an unstable food supply as evidenced by much greater striped bass shad consumption in Summer 1998 (63 % by weight) when age-0 shad were more abundant than in Summer 1997 (7 % by weight). Striped bass was the only species to exhibit faster growth rates and mean relative weight (Wr) values in the 1990s versus pre-shad years. Walleye (except age-1) and black bass growth rates declined, and mean Wr values either remained consistent or declined. Largemouth bass and walleye were the only sportfish to show increases in relative abundance. Benefits of gizzard shad as a forage fish appear to be limited to striped bass and its hybrid species. It is possible that gizzard shad have had, directly or indirectly, an adverse impact on the black basses of Claytor Lake, but explanatory analysis of these relationships was beyond the scope of this study.
Master of Science

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7

Babler, Allison L. "Allochthony of detritivorous fish in Ohio reservoirs, as determined using stable hydrogen isotopes." Oxford, Ohio : Miami University, 2009. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=miami1250198397.

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8

Pilati, Alberto. "Stoichiometry and the relative importance of autochthonous and allochthonous food sources for a dominant detritivorous fish." Oxford, Ohio : Miami University, 2007. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=miami1180713695.

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9

Tisa, Mark Steven. "Compatibility and complementarity of alewife (Alosa pseudoharengus) and gizzard shad (Dorosoma cepedianum) as forage fish in Smith Mountain Lake, Virginia." Diss., Virginia Polytechnic Institute and State University, 1988. http://hdl.handle.net/10919/87676.

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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. Alewife and gizzard shad larvae exhibited strong spatial segregation which minimized the potential for direct trophic competition and increased feeding opportunities for piscivores. Gizzard shad spawning peaked in June while alewife spawning peaked in July. Daily growth rate of age-0 gizzard shad was 37% greater than for age-0 alewives. Later spawning and slower growth enhanced temporal and morphological availability of alewives to piscivores and reduced the potential for exploitative competition between the clupeids. Distributional analysis indicated that gizzard shad were primarily uplake and littoral while alewives were mostly downlake and pelagic. Alewives co-occurred with striped bass and walleye during the growing season and were crucial in providing forage for these piscivores. Largemouth bass shared a common distribution with gizzard shad and were more trophically dependent than other piscivores on them. Prey supply and predator demand were one year out of phase; gizzard shad and alewife production peaked in the first year of life while their predators' cohort production peaked in the second year. Cohort production analysis indicated that over their lifespan, striped bass prey demand (per 1000 fish) would exceed that of walleye and largemouth bass by 17% and 166%, respectively. Lifespan cohort production patterns and ingestibility limitations on prey assured that most predation pressure in Smith Mountain Lake came from piscivores ages 0-2 and was constrained to alewives ages 0 and 1 and young-of-the-year gizzard shad. Prediction of patterns of consumption of alewife and gizzard shad by piscivores was derived from analyses of morphological and distributional availabilities; these agreed closely with actual diets for most predator-prey location, season and age combinations. The alewife appears to be both compatible with, and complementary to, the gizzard shad as a forage species in Smith Mountain Lake. Suitability of alewives for introductions into other reservoirs will vary with the morphometry and management objectives for those waters.
Ph. D.

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10

Bremigan, Mary Therese. "Variable recruitment of gizzard shad, a strong interactor in reservoirs: Exploring causal mechanisms and implications for food webs /." The Ohio State University, 1997. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487944660929271.

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11

Kallis, Jahn L. "An ecological approach to management of an important reservoir fishery." The Ohio State University, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=osu1376957161.

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12

Showalter, Ann Marie. "The Impact of Environmental Conditions, Food Resources, and Ecological Stoichiometry in Structured Populations." Miami University / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=miami1452104389.

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13

Evans, Nathan Thomas. "Age-0 gizzard shad prey supply and predator demand analysis of the trophic support capacity of southern U.S. reservoirs /." 2009. http://digital.library.okstate.edu/etd/Evans_okstate_0664M_10637.pdf.

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14

Puckridge, James Terence. "The life history of a gizzard shad, the bony bream, Nematalosa erebi (Gunther) (Dorosomatinae, Teleosti) in the lower River Murray, South Australia." Thesis, 1988. http://hdl.handle.net/2440/127360.

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15

Lee, Hao-Hsiang, and 李浩祥. "Application of otolith structure and microchemistry to study growth and migratory environmental history of Japanese gizzard shad Nematalosa japonica in the Tatu creek estuary of Taiwan." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/85243310156506085103.

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碩士
國立臺灣大學
漁業科學研究所
95
Japanese gizzard shad (Nematalosa japonica) is a dominant clupeid fish in the Tatu creek estuaries. Its life history information such as migratory pattern, age and growth is not clear so far. In this study, otolith structure and microchemistry of Japanese gizzard shad were used to study their age, growth and migratory history. Monthly variations of fish length frequency distribution and gonadosomatic index indicated that spawning season of this fish was from February to April. The chronological changes of otolith daily growth increment and Sr:Ca ratios patterns presented two otolith checks: (1) metamorphosis check which was assumed to be formed when the fish metamorphosed from larvae to juvenile stages. The aged at metamorphosis was estimated to be 27.7 ± 5.3 days (n = 40) after birth; and (2) estuarine check, which was formed when the juveniles returned to the upper reach of the estuary. The age of return was 47.2 ± 9.2 (n = 18) days after birth. The age-length data back calculated from otolith annulus were fitted with von Bertalanffy growth equation as Lt = 218.3 (1- e - 0.31 ( t + 0.8 ) ), where asymptotic length (L∞) was 218.3 mm and growth rate (K) was 0.31 yr-1. The Sr:Ca ratios in otolith of Japanese gizzard shad was positively correlated to the salinity of ambient water. (p < 0.05) The regression of otolith Sr:Ca ratios on salinity was y = 0.05 x + 3.10, with an intercept, the saline-freshwater boundary at 3.1 ‰. The chronological patterns of otolith Sr:Ca ratios showed that multiple types of drift existed in early life history, and the fish used estuary as nursery ground. The migratory patterns of the fish in the estuary can be classified into two types: (1) high salinity type (H type), the mean Sr:Ca ratios were higher than the saline-freshwater boundary, indicating the fish lived in the lower reach of the estuary, which consisted of 36 % of the fish examined (n = 36); and (2) low salinity type (L type), the mean otolith Sr:Ca ratios were less than the saline-freshwater boundary, indicating that the fish lived in the freshwater environment of the upper reach of the estuary, which consisted of 44 % of the fish examined. The otolith Sr:Ca ratios also indicated that the adults might migrated annually to the freshwater to spawn. The growth performance was significantly different (p < 0.05) between two types, with lower growth rate and higher asymptotic length for H type; but higher growth rate and lower asymptotic length for L type. If the differentiating habitat utilization and growth strategy of Japanese gizzard shad between these two types is due to random adaptations to the variability of environmental conditions or genetic determined needed further study.

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