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Showing 1 to 20 of 22 for “"Stomach content analysis"”.

  1. STOMACH CONTENT ANALYSIS OF BOTULISM-AFFECTED BIRDS IN LAKE MICHIGAN

    Essian, David A2015

    … were significant intraspecies differences in the stomach content of ring-billed gulls that were compared across collection period (June – July versus August – October) and of BoNT/E-free double-crested cormorants that were compared across location and age group. These results provide further …

    nmu Repository record

  2. Stomach Content Analysis of the Invasive Small Indian Mongoose (Herpestes auropunctatus) from Puerto Rico

    Rodriguez, Candice M.Texas State University2018

    … forest zone and subtropical dry forest zones. Stomach contents were separated and analyzed to determine aggregate percent composition of prey remains for 5 categories (invertebrate, reptile, mammal, vegetation, and other). Of 51 mongoose stomachs analyzed (Dry, n=22, Moist, n=29), there were …

    texas-state Repository record

  3. Determining the Trophic Role of Red Snapper (Lutjanus campechanus) in Mississippi State Waters Using Stomach Content and Stable Isotope Analysis

    Kohler, Branden2020

    … (δ<sup>13</sup>C and δ<sup>15</sup>N) and stomach content analysis. Stable isotope analysis of fish and their prey can provide information on species-specific basal resource utilization, diet composition and trophic position which can improve food web models and inform fisheries management …

    usm Repository record

  4. Food Partitioning Between Two Sympatric Cricetid Species

    Cook, John C.

    … State University agricultural station. Fecal and stomach content samples from these species were collected and analyzed for the type and amount of food within each sample. Home ranges for each species were also studied. While the study showed that home ranges of M. ochrogaster and P. maniculatus …

    mo-state Repository record

  5. Utilizing an Integrated Approach to Explore Niche in a Complex Equatorial System

    Orrell, DanielleUniversity of Windsor2022

    … that support coexistence, often explored using stomach content analysis and chemical tracers. In this thesis, I explored the applications of acoustic telemetry, a forerunner in technology used to estimate the Grinnellian (spatial) niche of aquatic animals. Positioning algorithms shift the …

    windsor Repository record

  6. Early Life History of <i>Prognichtys occidentalis</i> and <i>Caranx crysos</i> Associated With <i>Sargassus</i> Habitat in the Northcentral Gulf of Mexico

    Tilley, Jason2018

    … on each side of a front. Otolith increment analysis was performed, and analysis of covariance (ANCOVA) was used to determine the influence of habitat on growth rates. Stomach content analysis determined the influence of habitat on feeding success by means of ANCOVA. Diets were examined for …

    usm Repository record

  7. Behavioral Responses of Rainbow Smelt to Sensory Deterrent Systems

    Hamel, Martin J.

    … rainbow smelt from two different locations for stomach content analysis. Results from the sensory deterrent systems indicated that strobe lights successfully repelled rainbow smelt to a minimum of 21 m at both 1-h and 4-h post-activation time intervals. A comparison of vertical strata 10 m above …

    sdstate Repository record

  8. Examining the trophic ecology of five myctophid genera in the southern Benguela using morphological, stomach content and stable isotope analyses

    Maré, CharnéDepartment of Biological Sciences2022

    … 2019 and were processed for morphological (M), stomach content (SC), and stable isotope (SI) analyses. The morphological analysis determined the relationship between gape and fish size for each genus and compared these between genera. The stomach content analysis evaluated the relative …

    cape-town Repository record

  9. Biology of Albacore tuna (Thunnus alalunga, Bonnaterre 1788) off the South West Coast of South Africa

    Norman, Stewart JamesDepartment of Biological Sciences2013

    … old (L∞=1100.07 mm; K=0.238 y-1; t₀=-2.14). Stomach content analysis indicated that the mesopelagic squid Lycoteuthis lorigera is the most important prey item for South African albacore. δ13C and δ15N stable isotope analysis of albacore and yellowfin tuna (T. albacares) muscle tissue showed …

    cape-town Repository record

  10. A multi-indicator approach to dietary assessments within Lake Michigan's nearshore area

    Happel, AustinUniversity of Illinois at Urbana-Champaign2013

    … assessment methods of examining individual’s stomach contents provide valuable data quantifying relationships, however what is incorporated into organisms is not always proportional to what is consumed. Biochemical compounds have recently been explored in marine and terrestrial systems to …

    uiuc Repository record

  11. Trophic Ecology of Largemouth Bass and Northern Pike in Allopatric and Sympatric Assemblages of Voyageurs National Park, Minnesota

    Soupir, Craig A.

    … assemblages, and ranged from 88 to 119. Stomach content analysis revealed that the percentage of empty stomachs varied among the study lakes for northern pike (34.7 to 66.7%) and largemouth bass (20.6 to 77.0%). Northern pike relied heavily on fishes, and especially yellow perch Perea …

    sdstate Repository record

  12. Diet Analysis of Stranded Bottlenose Dolphins (<i>Tursiops truncatus</i>) in Virginia

    Volker, Kristen Marie2020

    … truncatus</em>) stranded in Virginia via stomach content analysis and considers factors such as proportion of numerical abundance and reconstructed mass, frequency of occurrence, average reconstructed prey size, prey diversity and quantity, and otolith degradation code. Fish size was …

    odu Repository record

  13. The Conservation Ecology of Rana temporaria and Bufo bufo in Leicestershire

    Swan, Mary Jane SinclairDe Montfort University1986

    … indicating the potential for biennial breeding. Stomach content analysis showed pre-breeding toads, but not frogs, to feed, beetles comprising the most abundant prey items. The most abundant and diverse invertebrates samples came from beneath scrub vegetation surrounding an arable field, the …

    de-montfort Repository record

  14. Environmental impact of stocked Mulloway (Argyrosomus japonicus) in New South Wales estuaries

    Taylor, Matthew DavidUNSW, Sydney2006

    … estuarine and aquatic habitats, and even oceans. Stomach content analysis of mulloway captured from a coastal lagoon and riverine estuary revealed ontogenetic changes in major prey of mysid shrimp, prawns and forage fish. Comparison between benthic resources and dietary composition in these two …

    unsw Repository record

  15. A preliminary investigation of the potential effects of the invasive Mozambique tilapia Oreochromis mossambicus on the native fish assemblages of Lake MacLeod, Western Australia

    Cameron-Caluori, HannahEdith Cowan University, Research Online, Perth, Western Australia2014

    … smaller in the pneumatophore habitat. Based on stomach contents analysis, O. mossambicus and A. caudavittata consumed many of the same food items, but often in different proportions. Little variation was seen among sites, except for Jack’s, and the diets were more separated by species than by …

    edithcowan Repository record

  16. The diet of selected benthic feeding fish in the Mfolozi-Msunduzi system, KwaZulu-Natal

    Nhleko, Jabulile Blessed BusisiweUniversity of Zululand2011

    … system, then what are these fish feeding on? The stomach contents of 961 fish of 15 different species collected between August 2008 and March 2010 using seine and gill nets were examined. Of these 15 species, only six were caught in sufficient numbers for gut analysis. The six species that were …

    zulu Repository record

  17. Movement analysis for monitoring predation by large carnivores : lions in Kruger National Park

    University of Pretoria2010

    … include direct continuous observation, stomach content analysis, carcass observations and scat analysis. Continual observations are widely considered the best approach to estimate large carnivore diets, with lions (Panthera leo) being no exception. Continual observation allows the …

    pretoria Repository record

  18. Fish scales as ecological indicators: empirical approaches to improve their practical application to fish ecology

    Busst, Georgina Marie AnnBournemouth University2017

    … their utilisation within stable isotope analysis (SIA). The research used fishes of the Cyprinidae family as the focal species. Cyprinids are of substantial global, socio-economic importance as their communities are valued ecologically, commercially and recreationally. The research …

    bournemouth Repository record

  19. Investigating the trophic ecologies of early life stages of small pelagic fishes in the Benguela upwelling ecosystem

    Horton, MatthewDepartment of Biological Sciences2024

    … of a species will enable accurate future analysis of trophic pathways and linkages within ecosystems and their feedback to vital ecosystem services such as fisheries. Results show that there is a high likelihood of trophic partitioning between sardine and anchovy larvae through distinct …

    cape-town Repository record

  20. Interazioni trofiche tra Condroitti in Mediterraneo

    MULAS, ANTONELLOUniversità degli Studi di Cagliari2011

    … has provided the opportunity to undertake the analysis of feeding habits and trophic relationships between all the Chondrichthyans caught in Sardinian waters by trawler, in order to provide an overall view about the interactions that rule the funtcioning of marine ecosystems and energetic …

    cagliari Repository record

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