Contents,
2011
University of Arkansas, Fayetteville
Contents, Discovery Editors
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
No abstract provided.
Discovery: The Student Journal Of Dale Bumpers College Of Agricultural, Food And Life Sciences - Volume 12 2011,
2011
University of Arkansas, Fayetteville
Discovery: The Student Journal Of Dale Bumpers College Of Agricultural, Food And Life Sciences - Volume 12 2011, Several Authors
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
No abstract provided.
Morphology And Microanatomy Of Harbor Porpoise (Phocoena Phocoena ) Dorsal Fin Tubercles,
2011
Texas A & M University - Galveston
Morphology And Microanatomy Of Harbor Porpoise (Phocoena Phocoena ) Dorsal Fin Tubercles, Carly C. Ginter, S. Anne Boettger, Frank E. Fish
Biology Faculty Publications
No abstract provided.
Settlement And Growth Of Quagga Mussels (Dreissenia Rostriformis Bugensis Andrusov, 1897) In Lake Mead, Nevada-Arizona, Usa,
2011
University of Nevada, Las Vegas
Settlement And Growth Of Quagga Mussels (Dreissenia Rostriformis Bugensis Andrusov, 1897) In Lake Mead, Nevada-Arizona, Usa, Wai Hing Wong, Shawn Gerstenberger, Wen Baldwin, Bryan Moore
Environmental & Global Health Faculty Research
Settlement and growth of quagga mussels Dreissena rostriformis bugensis were monitored in Lake Mead, NV, USA, where the first dreissenid occurrence was confirmed in the western United States. To measure the settlement rate of these invasive mussels, seven acrylonitrile butadiene styrene (ABS) pipes were attached to a line in shallow water (7.7 m below the surface) since November 23, 2007; eight ABS pipes were placed on another line in deep water (13.4 m below the surface) since January 3, 2008. Quagga mussels were sampled from these pipes on March 19, May 21, July 9, October 20, and December 19, 2008. …
The Equitarian Initiative: International Humanitarian Aid Using Horses,
2011
South Dakota State University
The Equitarian Initiative: International Humanitarian Aid Using Horses, Angela Gebhart
The Journal of Undergraduate Research
This harrowing comment from a Mexican laborer echoes the worldwide importance of working horses, mules, and donkeys. For many in the United States, a horse is a source of recreation, a sport vehicle of sorts, a decoration, or a pet. For most other parts of the world, a working equid (horse, donkey, or mule) is a family’s sole vehicle, a day laborer, and the only constant source of income available. Many of these communities lack a steady food source for the animals, much less a competent veterinarian; thus, the world’s veterinarians treat only about 10% of the world’s total equid …
Using Archaeological Fish Remains To Determine The Native Status Of Anadromous Salmonids In The Upper Klamath Basin (Oregon, Usa) Through Mtdna And Geochemical Analysis,
2011
Portland State University
Using Archaeological Fish Remains To Determine The Native Status Of Anadromous Salmonids In The Upper Klamath Basin (Oregon, Usa) Through Mtdna And Geochemical Analysis, Alexander E. Stevenson
Dissertations and Theses
Within the Upper Klamath Basin, Oregon, the native status of anadromous salmonids (Oncorhynchus spp.) has been a long standing question. Ongoing efforts to establish if these fish were native to the region prior to the construction of the Copco I Dam on the Klamath River (c.1917) have relied on sparse, contradictory and sometimes unreliable historic documentation and informant testimony. Current restoration projects with very high financial and social costs necessitate accurate and reliable data on salmonid species which once called the region home. Often, archaeolofaunal remains present a novel way to determine species present in an area prior to …
Population Structure Of Island-Associated Pantropical Spotted Dolphins (Stenella Attenuata) In Hawaiian Waters,
2011
Portland State University
Population Structure Of Island-Associated Pantropical Spotted Dolphins (Stenella Attenuata) In Hawaiian Waters, Sarah Shelby Courbis
Dissertations and Theses
Understanding gene flow, diversity, and dispersal patterns is important for predicting effects of natural events and anthropogenic activities on dolphin populations. With the very recent exceptions of false killer whales (Pseudorca crassidens), spinner dolphins (Stenella longirostris), and common bottlenose dolphins (Tursiops truncatus), Hawaiian odontocete species are managed as single stocks within the U.S. Hawaiian Exclusive Economic Zone. These exceptions are a result of recent studies that have indicated that some species have populations that show fidelity to individual islands or groups of islands, resulting in genetic differentiation, often with management implications. The first part …
Evaluating Methods For Optimizing Classification Success From Otolith Tracers For Spotted Seatrout (Cynoscion Nebulosus) In The Chesapeake Bay,
2011
Old Dominion University
Evaluating Methods For Optimizing Classification Success From Otolith Tracers For Spotted Seatrout (Cynoscion Nebulosus) In The Chesapeake Bay, Stacy Kavita Beharry
OES Theses and Dissertations
Identifying the natal sources of fish is an important step in understanding its population dynamics. Adult recruits are often sourced from multiple nursery areas, with good quality locations contributing disproportionately more fish to the adult stock. Because population persistence is strongly influenced by nursery habitat, methods that correctly identify the source of recruits are necessary for effective management. Within the last decade, otolith chemistry signatures have been increasingly used as a natural marker to delineate fish from a mixture of nursery sources. Despite the widespread use of otolith trace element and stable isotope ratios as habitat markers, the statistical approaches …
Use Of Sarima Models To Assess Data-Poor Fisheries: A Case Study With A Sciaenid Fishery Off Portugal,
2011
Old Dominion University
Use Of Sarima Models To Assess Data-Poor Fisheries: A Case Study With A Sciaenid Fishery Off Portugal, Nuno Prista, Norou Diawara, Maria J. Costa, Cynthia M. Jones
OES Faculty Publications
Research on assessment and monitoring methods has primarily focused on fisheries with long multivariate data sets. Less research exists on methods applicable to data-poor fisheries with univariate data sets with a small sample size. In this study, we examine the capabilities of seasonal autoregressive integrated moving average (SARIMA) models to fit, forecast, and monitor the landings of such data-poor fisheries. We use a European fishery on meagre (Sciaenidae: Argyrosomus regius), where only a short time series of landings was available to model (n=60 months), as our case-study. We show that despite the limited sample size, a SARIMA model could …
Postfledging Survival And Habitat Use Of Spotted Towhees (Pipilo Maculatus) In An Urban Park,
2011
Portland State University
Postfledging Survival And Habitat Use Of Spotted Towhees (Pipilo Maculatus) In An Urban Park, Amy Ann Shipley
Dissertations and Theses
Habitat fragmentation, and the resulting increase in edge habitat, has important effects on birds, including the increased probability of nest predation, changes in habitat structure, and the increased presence of non-native plant species. It is critical to understand the effects of fragmentation at all stages of the avian life cycle, including the often overlooked postfledging period. Because much of juvenile mortality occurs during the immediate postfledging period, and juvenile mortality contributes substantially to population dynamics, it is necessary to understand if fledgling survival is reduced in edge habitats and if fledglings' survival is influenced by their habitat use. During 2008 …
Morphological And Ultrastructural Changes In Tissues Of Intermediate And Definitive Hosts Infected By Protostrongylidae,
2011
TÜBİTAK
Morphological And Ultrastructural Changes In Tissues Of Intermediate And Definitive Hosts Infected By Protostrongylidae, Abdurakhim Ergashevich Kuchboev, Eric P. Hoberg
Turkish Journal of Zoology
Cellular and subcellular mechanisms involved in tissue responses to larval and adult lungworms (Protostrongylidae) were respectively explored through experimental and natural infections in molluscan intermediate (Xeropicta candacharica) and ruminant definitive hosts (Ovis aries). Reaction to developing larval stages in the gastropod is manifested as cellular infiltration involving lymphocytes and macrophages into the infected tissue, which restricts damage and may result in destruction and elimination of parasites from the intermediate host. Variations in the patterns of localization for infective third-stage larvae in the foot tissue of the intermediate host are described. In the definitive host, evaluation of lung tissue by histology …
Reproductive Performance Of Turbot (Psetta Maxima) In The Southeastern Black Sea,
2011
TÜBİTAK
Reproductive Performance Of Turbot (Psetta Maxima) In The Southeastern Black Sea, İlhan Aydin, Temel Şahi̇n
Turkish Journal of Zoology
Spawning time, total fecundity, fertilization, and hatching rates of turbot (Psetta maxima) were investigated in 10 wild female broodstock (mean wt: 3809.7 ± 1238.4 g). Spawning lasted 37 days, from April 17 to May 23. Mean total fecundity was 2329 ± 1260 x 10^3 eggs per female. Fertilization and hatching rates were 30.6 ± 25.4% and 17.9 ± 16.1%, respectively. A significant positive correlation was observed between body weight and total fecundity (r = 0.637, P < 0.05). The timing and frequency of hand stripping, fecundity, fertilization, and hatching rates in turbot are presented.
A New Eyeless Mite Species Of The Genus Eustigmaeus Berlese (Acari: Stigmaeidae) From Turkey,
2011
TÜBİTAK
A New Eyeless Mite Species Of The Genus Eustigmaeus Berlese (Acari: Stigmaeidae) From Turkey, Sali̇h Doğan, Güldem Dönel, Sezgi̇n Özçeli̇k
Turkish Journal of Zoology
A new eyeless mite species of the genus Eustigmaeus from Turkey, Eustigmaeus anophthalmus, is described and illustrated.
Hematological Reference Intervals Of Some Snake Species In Turkey,
2011
TÜBİTAK
Hematological Reference Intervals Of Some Snake Species In Turkey, Murat Tosunoğlu, Çi̇ğdem Gül, Ni̇lgün Yilmaz, Hüseyi̇n Topyildiz
Turkish Journal of Zoology
In this study, some blood parameters were studied in 7 distinct snake species (Dolichophis caspius, Eirenis modestus, Malpolon monspessulanus, Natrix natrix, Platyceps rubriceps, Telescopus fallax, and Typhlops vermicularis) of the families Colubridae and Typhlopidae, collected from various regions of Turkey. A total of 7 hematologic parameters, namely red blood cell count (RBC), white blood cell count (WBC), hematocrit value (HCT), hemoglobin concentration (Hb), mean corpuscular volume (MCV), mean corpuscular hemoglobin (MCH), and mean corpuscular hemoglobin concentration (MCHC), were examined. It was detected that Platyceps rubriceps had the highest erythrocyte count and the lowest MCV value among the species examined, Telescopus …
The Structure And Defensive Efficacy Of Glandular Secretion Of The Larval Osmeterium In Graphium Agamemnon Agamemnon Linnaeus, 1758 (Lepidoptera: Papilionidae), Jagannath Chattopadhyay
Turkish Journal of Zoology
Histomorphological study of the larval (final instar) osmeterium gland in Graphium agamemnon agamemnon Linnaeus shows that each fully protruded Y-shaped osmeterium is composed of 2 elongated hollow tubular arms, which arise from a basal peduncle. The surface of the osmeterium has irregular folds, and papillae arise from some cells. There is an oval opening (gland pore, structurally less complicated than in other evolved species) in the proximal second seventh of the segment on each tubular arm on its posterior face. Histologically, 2 main types of secretory cells can be observed (excluding the muscle fiber cells and supporting cells): i) ellipsoid …
Comparative Production Of Channel Catfish And Channel × Blue Hybrid Catfish Subjected To Two Minimum Dissolved Oxygen Concentrations,
2011
United States Department of Agriculture, Agricultural Research Service
Comparative Production Of Channel Catfish And Channel × Blue Hybrid Catfish Subjected To Two Minimum Dissolved Oxygen Concentrations, Bartholomew W. Green, Steven D. Rawles
United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
The effect of daily minimum dissolved oxygen (DO) concentration on the growth and yield of channel catfish Ictalurus punctatus and channel catfish hybrids (female channel catfish × male blue catfish I. furcatus) sharing the Jubilee strain of channel catfish as the maternal parent was evaluated in a 234-d study in sixteen 0.1-ha earthen ponds (15,113 fish/ha). Ponds were managed to maintain a minimum DO concentration of 25% or 50% of saturation. The total consumption of 32%-protein feed at the high and low DO concentrations was 12,973 and 10,262 kg/ha, respectively, for channel catfish and 12,805 and 11,592 kg/ha, …
Development Of Phytoplankton Communities And Common Off-Flavors In A Biofloc Technology System Used For The Culture Of Channel Catfish (Ictalurus Punctatus),
2011
United States Department of Agriculture, Agricultural Research Service
Development Of Phytoplankton Communities And Common Off-Flavors In A Biofloc Technology System Used For The Culture Of Channel Catfish (Ictalurus Punctatus), Kevin Schrader, Bartholomew W. Green, Peter Perschbacher
United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
The use of biofloc technology production systems continues to increase in the aquaculture industry worldwide. Recent research demonstrated that outdoor biofloc systems can be used to produce high yields of channel catfish (Ictalurus punctatus). However, studies have not yet been performed to determine the development and composition of phytoplankton communities and related off-flavor problems in these biofloc production systems. In this study, water samples were collected biweekly from May to November and channel catfish samples were collected during harvest in November from nine 18.6 m2 biofloc culture tanks. Water and fillet samples were analyzed for levels of …
A Review Of Flavobacterium Psychrophilum Biology, Clinical Signs, And Bacterial Cold Water Disease Prevention And Treatment,
2011
South Dakota State University
A Review Of Flavobacterium Psychrophilum Biology, Clinical Signs, And Bacterial Cold Water Disease Prevention And Treatment, Michael E. Barnes, Michael L. Brown
Natural Resource Management Faculty Publications
Flavobacterium psychrophilum is a ubiquitous bacterium in the aquatic environment, particularly in freshwater [1]. As the etiological agent of bacterial coldwater disease, it is a serious fish pathogen causing substantial economic losses and rearing difficulties to both commercial and conservation aquaculture [2]. This review paper describes the epidemiology, clinical signs, prevention, and treatment of the fish diseases attributed to this pathogen, which are similar despite the different geographic labels. In addition, the basic biology of F. psychrophilum and the techniques required for successful bacterial culture, isolation, and identification are discussed.
An Assessment Of The Lethal Thermal Maxima For Mountain Sucker,
2011
South Dakota State University
An Assessment Of The Lethal Thermal Maxima For Mountain Sucker, Luke D. Schultz, Katie N. Bertrand
Natural Resource Management Faculty Publications
Temperature is a critical factor in the distribution of stream fishes. From laboratory studies of thermal tolerance, fish ecologists can assess whether species distributions are constrained by tolerable thermal habitat availability. The objective of this study was to use lethal thermal maxima (LTM) methodology to assess the upper thermal tolerance for mountain sucker Catostomus platyrhynchus, a species of greatest conservation need in the state of South Dakota. Adult fish were captured from wild populations in the Black Hills of South Dakota and acclimated to 20, 22.5, and 25 °C. Four endpoints (3 sublethal, 1 lethal) were recorded, with death …
A Comparison Of Skeletal Muscle Protein Bands In Pelophylax Ridibundus (Pallas, 1771) And Pelophylax Caralitanus (Arıkan, 1988) Populations In Turkey Using Sds-Page, Ufuk Bülbül, Bi̇lal Kutrup
Turkish Journal of Zoology
In this study, skeletal muscle protein bands of Pelophylax ridibundus specimens from 31 populations inhabiting all geographic regions of Turkey and Pelophylax caralitanus specimens from the Isparta (Lake Eğirdir) population were compared using sodium dodecyl sulphate polyacrylamide gel electrophoresis (SDS-PAGE). In total, 270 adult (134 females, 136 males) P. ridibundus specimens and 12 adult (5 females, 7 males) P. caralitanus specimens were used in SDS-PAGE characterization. The first group (31 different populations of P. ridibundus) had 27 homologous protein bands whereas the second group (1 population of P. caralitanus from Lake Eğirdir) had 28 bands. It was shown that the …
