Van der Merwe, Elizabeth

Magister Scientiae - MSc (Biodiversity and Conservation Biology) / South Africa

Lyon, Robert Gary

A physiological study was carried out to determine the effects of temperature, quantity of food fed, feeding activity and size class on the oxygen consumption and ammonia production of the South African abalone Haliotis midae L.. A set of intermittent flow respirometer chambers were used in a recirculating system to measure the oxygen consumption rates of fed (postprandial) and unfed (postabsorptive) abalone for three different size classes (15, 30, and 50mm) at three different temperatures (16°...

Yearsley, Rowan David

Abalone Haliotis midae farming in South Africa is highly intensive, employing pump-ashore, flow-through systems. Despite the known sensitivity of abalone to water quality, there is only a rudimentary understanding of water quality dynamics on South African abalone farms and its effects on abalone production. Furthermore, the potential for reusing the relatively dilute abalone farm effluent to culture other animal species has not been investigated. This study investigated the dynamics of water qu...

Lin, Albert Yu-Min.

Thesis (Ph. D.)--University of California, San Diego, 2008. / Title from first page of PDF file (viewed July 28, 2008). Available via ProQuest Digital Dissertations. Vita. Includes bibliographical references (p. 192-202).

van der Merwe, Elizabeth.

<p>The primary aim of the current study falls within the main framework of the Frontier Program (Pitcher 2005), namely to address aspects of &ldquo / Animal Husbandry&rdquo / . Within this research area, the determination of the effects of handling/grading and chemicals (anaesthetics) on the growth and survivorship of abalone are highlighted as key research areas and these are thus one of the focuses of this research.</p>

Visser-Roux, Adelle

Thesis (PhD (Genetics))--Stellenbosch University, 2011. / ENGLISH ABSTRACT: Currently, South African aquaculture is dominated by the cultivation of Haliotis midae, which is estimated as the most lucrative sector of the industry, with 934 t being export in 2008, totalling an income of ZAR 268 million (40 million USD) in 2008. This represents 81% of the total rand value of the aquaculture sector. Abalone was the highest aquaculture commodity exported during the last two years from South Africa, re...

Zeeman, Susanna Catharina Franzina

Includes bibliographical references (leaves 50-57). / The South African abalone Haliotis midae is a commercially exploited species that is seriously threatened by overfishing and poaching. This not only affects the species itself but also the integrity and functionng of the ecosystem through associated changes in community structure. I assessed the influence of abalone on the ecosystem by a combination of (a) dietary studies, (b) comparisons of communities living on shell versus surrounding rock...

Stepto, Nigel Keith

Bibliography: leaves 72-80. / An investigation was undertaken to determine whether triploidy could be induced and improve the growth rate of the South African abalone, Haliotis midae. From the polar body counts at 17 ?C the release times of polar body 1 and 2 were found to be at 12 - 15 min. post insemination (pi.) and 33-36 min. pi. respectively. Cytochalasin B (CB) (0.5mg. 1-? seawater) and elevated temperature (30 ?C) were used as stresses to induce triploidy. CB induced 48.4% polar body 1 an...

Dale Kuys, Ruth

Thesis (MSc)--Stellenbosch University, 2015. / ENGLISH ABSTRACT: Linkage disequilibrium (LD) is defined as the non-random association of alleles at two or more loci within a population. It is sensitive to a variety of locus-specific- and demographic factors, and can thus provide much insight into the micro-evolutionary factors that have shaped species of interest. It can also be exploited to identify the genomic regions determining complex traits of interest, which can then be applied as perform...

Erasmus, Jean Helen

Summary in English. / The role of bacteria in the digestive tract of the abalone Haliotis midae was examined to determine whether bacteria aid hydrolysis of polysaccharides present in seaweeds which farmed abalone consume. The enteric bacteria were enumerated using culturable and total (DAPI) counts. The numbers of culturable bacteria fell between 3.5x10⁵ and 2.3x10⁸ cfu/g wet weight tissue. The DAPI counts were between 1.6x10⁹ and 5.1x10⁹ cells per gram of tissue. The numbers of bacteria differ...

Alghamdi, Saleh Jaman

Nacre is a hierarchical material found within the tough shells of red abalone. Despite being composed of calcium carbonate, nacre exhibits remarkable mechanical properties resulting from the nanoscale brick-and-mortar structure made from aragonite polygons. The objective of this research is to elucidate the toughening mechanisms associated with the interfacial resistance of red abalone. This was achieved by studying the mechanical behavior of dry nacre under pure shear and tension, and character...

Shipton, Thomas A

The potential to reduce feed formulation costs by the replacement of existing proteinsources in artificial feeds for Haliotis midae was assessed. A comparison between the efficacy of the direct method and chromic oxide marker techniques in determining apparent protein digestibility coefficients, revealed that while the former was not a suitable methodology for use with this species, the latter produced replicable and reliable results. It was established that the chromic oxide marker is inert, is...

Will, Margaret

Abalone (Haliotis spp.) are marine broadcast spawners that inhabit temperate and tropical waters across the globe. Their importance as a fisheries resource has resulted in considerable research into key aspects of their biology, particularly around growth and reproduction. In addition, there has been ongoing interest regarding the genetic variation in both wild and hatchery populations. The majority of abalone dispersal probably occurs during a pelagic lecithotrophic larval stage. In general, oc...

Gorski, Jacquelle, jacquelle.gorski@epa.vic.gov.au

This thesis focussed on the effects of a range of trace metals on various stages of Haliotis rubra development. The trace metals assessed in this thesis were the essential metals Cu, Zn and Fe; and, the non-essential metals Hg, Cd and Pb. Copper and Hg proved to be the two most toxic metals to the life stages of H. rubra studied. The concentrations affecting normal development of the fertilised egg exposed for 48h showed a decreasing order of toxicity with 48hEC50 recorded at 7µg Cu/L, 20µg H...

Gruenthal, Kristen Marie.

Thesis (Ph. D.)--University of California, San Diego, 2007. / Title from first page of PDF file (viewed September 4, 2007). Available via ProQuest Digital Dissertations. Vita. Includes bibliographical references.

Donovan, Deborah Anne

The purpose of this thesis was to investigate several aspects of the energetic costs of activity in the Northern abalone, Haliotis kamtschatkana. The percentage of daily consumed energy partitioned to activity was calculated by first measuring summer and winter energy budgets in which abalone were inactive during measurements of respiration and mucus secretion, then by measuring respiration and mucus-secretion for active animals by integrating summer and winter activity budgets with energy ...

White, Hermien Ilse

The principle aim of this study was to isolate a chemical for the "safe anaesthesia" of abalone under commercial farming conditions. "Safe anaesthesia" implied that the anaesthetic had no immediate detrimental or long term sublethal effect on the abalone, that it was safe for the farmer, the consumer and the environment. Four chemicals, magnesium sulphate (MgS0₄), ethylenediamine tetra-acetic acid (EDTA), 2-phenoxyethanol and procaine hydrochloride were shown to effectively inhibit the in vitro ...

Tsai, Cheng-Lin Tsai, 蔡政霖

碩士 / 國立臺灣海洋大學 / 食品科學系 / 104 / Hybrid abalone and small abalone are two major culture varieties of abalone in Taiwan. This study was to understand the differences of chemical compositions between hybrid abalone and small abalone, and to investigate the effects of blanching and storage on quality attributes. The weight proportion and condition factor of hybrid abalone were higher than small abalone, but their proximate composition were similar. Both abalone foots had higher amounts of moisture, cr...

Berry Yun-Hua Chou, 周韻華

碩士 / 國立臺灣大學 / 生物環境系統工程學研究所 / 94 / The purpose of this thesis is to develop mechanistic models to accurately quantify environmental quality criteria (EQC) and to predict a risk threshold for the survival and growth of farmed abalone Haliotis diversicolor supertexta exposed to waterborne zinc (Zn) based on a probabilistic internal effect concentration (IEC)-based modeling framework. We couple a first-order two-compartment bioaccumulation model and a reconstructed dose-response profile based on a t...

Duan-Yang Lin, 林端陽

碩士 / 國立海洋大學 / 水產養殖學系 / 88 / There were two experiments conducted to investigate the effects of the optimum protein level and substitution of soybean meal for casein on the growth and survival of large (10g) and small (3g) Taiwan abalone, Haliotis diversicolor. Experiment Ⅰ, Taiwan abalone were fed seven isoenergetic diets contains 15, 20, 25, 30, 35, 40 and 45% crude protein. Gracilaria sp. was used as a control diet. Fifteen large and small Taiwan abalone per treatment were separatedly housed i...

Hai-Hua Liou, 劉海華

碩士 / 國立臺灣大學 / 漁業科學研究所 / 88 / The successful of polylayer culture of Taiwanese abalone (Haliotis diversicolor) has produced rapidly, so the major diets of Gracillaria has not enough in the future. Therefore, developing artificial diets to solute this problem is the top urgent. This study is conducted to the effects of dietary lipid levels, essential fatty acids and soybean lecithin levels on the growth of Taiwanese abalone. The experiment was performed in three parts. In chapter one, t...

Chung-Ping Chen, 陳忠平

碩士 / 國立臺灣大學 / 農業工程學研究所 / 88 / The multilayer running flow type(flow-through) culture is general in Taiwanese abalone culture in recent years. However, the survival rate and food conversion ratio are low. With the twenty-three times daily exchange of seawater, the quality of water varies, the energy costs expense and the large amount of wastewater pollutes the neighboring coastal waters. Considering the expensive energy costs and the nutrient balance in the coastal waters, a water recirculating m...

張瑞珍

碩士 / 國立海洋大學 / 水產養殖學系 / 91 / Three experiments were conducted to investigate the effects of vitamin E levels and lipid sources on the weight gain, tissue α-tocopherol concentrations, fatty acid compositions of soft tissue and viscera, thiobarbituric acid reactive substances (TBARS) of soft tissue and hemocyte of Taiwan small abalone, Haliotis diversicolor. Six isonitrogenous purified diets（32.6% CP）with a mixture of 2:1 cod liver oil/corn oil contained graded α-tocopherol levels, 0、0.1、0.15、0.2、0...

Lee, Wong-Chung, 李汪聰

碩士 / 國立海洋大學 / 水產養殖學系 / 86 /

bo-nine chen, 陳柏年

碩士 / 國立海洋大學 / 水產養殖學系 / 89 / This study was conducted to investigate the effects of diets with different quantity of polyunsaturated fatty acid (PUFA) or highly unsaturated fatty acid (HUFA) on the growth、condition factor and survival of juvenile abalone, Haliotis diversicolor. In experiment I, seven isonitrogenous and isoenergetic diets containing beef tallow and pure triglycerides of 0.05、0.1 and 0.2﹪18:2n-6 (Trilinolein) and 18:3n-3 (Trilinolenin). In experiment II, ten isonitrogenous and isoe...

Guan-Quan Chen, 陳冠全

碩士 / 國立臺灣海洋大學 / 水產養殖學系 / 92 / Abstract This experiment was conducted to find out the survival and growth of small abalone Haliotis diversicolor supertexta fed two different types of diatoms Navicula sp. and Amphora sp. Two diatoms were isolated from abalone farm. The growth of the diatom grown at different temperatures of 15, 20, 25 and 30 ℃ and under three different light densities of 1000, 2000, and 3000 lux were studied. The number of diatoms increased with temperature and light ...

Liang, Wen Bin, 梁文彬

碩士 / 國立海洋大學 / 水產食品科學研究所 / 84 /

Chen, Jen-Fu, 陳仁富

碩士 / 國立屏東科技大學 / 水產養殖系 / 94 / Gracilaria tenuistipitata is major feed for abalone cultivation in Taiwan. Polysaccharides are already known to have the ability to stimulate the immune system from macroalgae. To understand how macroalgae quality affect the immune ability of abalone. There were 4 different temperatures and 4 salinities used to set up 20 environmental combinations to test growth of G. tenuistipitata and used as feed for abalone thereafter. This studies that breeding G. tenuistipitata...

Wei-Yi Wu, 吳韋毅

碩士 / 國立臺灣海洋大學 / 水產養殖學系 / 92 / Abstract Outbreak of mass mortality among cultured small abalone Haliotis diversicolor supertexta occurred in January and February of 2003 in North-east coast of Taiwan. The outbreak occurred in a short period of time with high mortality rate, The moribund animals manifested less elasticity and darkness of the mantle. These gross signs were different from that caused by bacteria. The injection of tissue filtrates from moribund abalone into healthy abalones caus...

Lai Chin-Pen, 賴錦盆

碩士 / 國立臺灣大學 / 動物學研究所 / 92 / The adhesion of hemocytes plays an important role in the innate immunity of abalones. According to the results from this study, several conclusions were drawn about the role of PKA (protein kinase A) in the adhesion of abalone hemocytes. First, upon cell adhesion, the amount of cAMP decreased in hemocytes. Second, elevation of cAMP levels inhibited cell adhesion. Third, cell adhesion was enhanced by the PKA inhibitor KT5720. Fourth, PKA activity decreased upon adhesio...

Chi Chen Peng, 彭啟禎

碩士 / 國立海洋大學 / 水產養殖學系 / 89 / Abstract Feeding of Taiwan abalone Haliotis diversicolor supertexta placed in 16 different regimes (temperature 20, 24, 28, 32 ℃ and salinity 25, 30, 35, 40 ppt) was examined when fed Gracilaria and artificial diet. Among the 16 treatments in Gracilaria group, feeding of abalone at the combined conditions of 32 ℃ and 35 ppt was the best, followed by 28 ℃and 30 ppt. Feeding of Taiwan abalone at the combined condition of 20 ℃ and 25 ppt was the lowest, an...

Yi-Theng Tseng, 曾義盛

碩士 / 國立海洋大學 / 水產養殖學系 / 88 / Two experiments were conducted to investigate the effects of lipid levels and sources on the weight gain and proximate analysis of soft body and viscera and fatty acid compositions of two different size abalone, Haliotis diversicolor. Seven isonitrogenous purified diets (33.5% CP) contained graded lipid levels, 0、1.5、3.0、4.5、6.0、7.5 and 9.0%, in the form of a mixture of 2:1 cod liver oil / corn oil. The red algae, Gracilaria sp, was used as a control diet. Small Taiwa...

Ming-Yuan Lin, 林明源

碩士 / 國立勤益科技大學 / 冷凍空調系 / 106 / This paper studied and discussed the application of environmental control system for Abalone mushroom cultivation to improve the economic output and to achieve economical optimization. In this study, approximately 15 pings will be taken as an example (4.8m*9.7m*3.0m) to build up cultivation chamber which can control the temperature, humidity, CO2 concentration and illuminance. The internal environment control system consists of refrigeration system with inverter typ...

Min-Hsiu Chen, 陳敏修

博士 / 國立臺灣大學 / 獸醫學研究所 / 102 / A 5781-base pair (bp) fragment of genomic DNA was obtained from Taiwanese abalone herpesvirus and showed 99% (5767/5779) identity in the nucleotide sequence and 99% (1923/1926) in the amino acid sequence with the DNA polymerase gene of the abalone herpesvirus strain Victoria/AUS/2007. Identity of the amino acid sequence was 30% (563/1856) with the DNA polymerase of ostreid herpesvirus 1. In this study, a PCR-based procedure for detecting herpesvirus infection of abal...

Wen-Chun Chen, 陳文君

碩士 / 國立臺灣海洋大學 / 食品科學系 / 96 /

蔡峻宇

碩士 / 國立海洋大學 / 食品科學系 / 88 / The purpose of this study was to investigate the changes in chemical constituents and physical properties of small abalone meat as influenced by heating condition. The sensory attributes of the cooked meat were also evaluated as well. During heating at 80℃ for 10-120min, the meat weight and width decreased slightly, but the meat length remained unchanged. About 6﹪of moisture lost after heating. Hunter L, a, and b values changed considerably, while the browni...

HuangHau Kuo, 郭晃豪

碩士 / 國立臺灣大學 / 漁業科學研究所 / 87 / The distinction and growth of wild and released Taiwanese abalone, Haliotis diversicolor, in the north-easthern Taiwan were carried out by oxygen and carbon isotope analysis. Furthermore, the amount of wild and released Taiwanese abalone in the Gulf of Mao Aw were also estimated. The results are as follows： 1. The carbon isotope values of wild Taiwanese abalone in the Gulf of Mao Aw range at 1.24-2.05, which are higher than that of the carbon isotope valu...

Bo-Ching Chen, 陳柏青

碩士 / 國立臺灣大學 / 農業工程學研究所 / 87 / Uptake and depuration of dietary and waterborne 65Zn(II) were analyzed in aquacultural abalone Haliotis diversicolor supertexta and the red alga Gracilaria tenuistipitata var. liui using a simple first-order one-compartment bioaccumulation model. A six-compartment physiologically based pharmacokinetic model of the disposition of Zn(II) in abalone key organs was developed to predict tissue distributions. The one-compartment kinetic model was suc...

Jeng-Tzyo Shie, 謝政佐

碩士 / 國立臺灣大學 / 漁業科學研究所 / 94 / This purpose of this study is aimed to know the effect of dietary β-glucan on non-specfic immune response in small abalone (Haliotis diversicolor supertexta) and use sodium alginate with β-glucan to observe survival and attachment of small abalone post-larvae. In experiment 1 to compare agar (1%)+Spirulina powder (24.5%), agar (1%)+blue-green algae powder (24.5%), agar (1%)+Chlorella powder (24.5%), agar (1%)+Gracilaria powder (24.5%), agar (1%)+Ulva powder (24.5%)...

Li-Jia Wang, 王麗嘉

碩士 / 國立臺灣海洋大學 / 水產養殖學系 / 95 / The hemocytes of Taiwan abalone (Haliotis diversicolor supertexta) were characterized and observed using light and electron microscopy. The cytoplasm of hyalinocytes absence granules and the chromatin of nucleus condensate; cell was basinophilic and good adhesion capability. The cytoplasm of small granulocytes abounded with eosinophilic granules, the nucleus was oval shape, basinophilic, and the cell adhesion capability was weaker than hyalinocytes. The cytoplasm of...

Tzu-Yu Tseng, 曾子渝

碩士 / 國立臺灣海洋大學 / 水產養殖學系 / 94 / This research study in the activation of Taiwan abalone (Haliotis diversicolor supertexta) immune response by different concentration of β-1,3-1,6-glucan and its resistance against Vibrio alginolyticus when injected with 40 and 80 µl/ml β-1,3-1,6-glucan. The results in experiment 1 (in vitro) showed that no response to use the different concentration of immunostimulants of Trypsin, Laminarin and Sodium alginate to stimulate proPO(prophenoloxidase) to become PO(p...

Ching-Lung Hsu, 許進隆

碩士 / 國立臺灣海洋大學 / 環境生物與漁業科學學系 / 92 / Abastract Small abalone (Haliotis diversicolor) is one of the most important shellfish cultured in Taiwan. An outbreak of massive mortality of abalone occurred in northern Taiwan, in January 2003. The epidemic was stroke again in the following year and devastated aquaculture businesses in that area. Herpes-like virus has demonstrated to be associated with the mortality of abalone in the epidemic. In the outbreak, adult and seedling abalone were all attacked and...

Chia-wei Ku, 顧家瑋

碩士 / 國立臺灣大學 / 動物學研究研究所 / 95 / Hemocyte aggregation is the main function for wound repair and stop bleeding. In this study, hemocytes of abalone (Haliotis diversicolor) were used to investigate the mechanisms of intracellular signaling transduction on cell aggregation. Based on the results, galectin, one of galactose-sepecific and divalent cation-dependent binding proteins is involved to the aggregation of abalone hemocytes. About the signaling transduction, PMA(phorbol 12-myristate 13-acetate), ...

Hui-Min Peng, 彭暉閔

碩士 / 國立臺灣大學 / 漁業科學研究所 / 92 / Stable oxygen isotope analyses in shell carbonate from the outer shell layer have been used to validate the periodicity of clearly defined growth rings on the outer shell layer and to estimate the age and growth of the Taiwan abalone, Haliotis diversicolor. Living specimens used in this study were collected in Maoaw Bay of the northeastern Taiwan from 1997 to 2003. The criteria of the external visible shell growth bands were built under the relationship between the s...

蕭伊珊

碩士 / 國立屏東科技大學 / 熱帶農業研究所 / 90 / This study aims at investigating the effects of water temperature, ammonia-N and nitrite-N on the immune response of Taiwanese abalone, Haliotis diversicolor supertexta. First examined was the immune factors of the abalone, including phenoloxidase activity (PO), superoxidase anion (O2-), total blood cells, phagocytosis, and clearance efficiency when the abalone was exposed to different water temperatures at 20, 24, 28 and 32℃ for 0, 24, 72 and 120 hours....

ZhengWei Lin, 林政偉

碩士 / 國立臺灣大學 / 漁業科學研究所 / 89 / Abalone (Haliotis diversicolor supertexta Lischke) is a valuable shellfish ranges around the coastal areas of Taiwan. In recent years, the wild abalone resources has undergone a severe decline. In order to enhance the wild abalone population, several coastal counties released the hatchery-reared juvenile abalone to the sea. The optimum size of released abalone could increase the survival rate and reduce the cost, i.e., the size and cost of released juveniles are the ...

Chen, Bing-Chou, 陳炳州

碩士 / 國立臺灣大學 / 漁業科學研究所 / 86 / This study is conducted to promote feed intake for Taiwanese abalone by supplemented of Spirulina power、Gracilaria power and their lipid-extract components , which will get more benefit in the future for developing artificial diets of Taiwanese abalone . The experiment was performed in two parts. In experimentⅠ, The main sources of protein were fish meal and soybean meal which was supplemen...

Xu, Cai-Sheng, 許財生

碩士 / 國立海洋大學 / 水產養殖研究所 / 86 /

Cheng Lin-Yen, 陳玲媛

碩士 / 國立屏東科技大學 / 水產養殖系 / 93 / Recently the larval abalone adhesive on the PVC wave plate was found to be easily fallen down from the plate within 2-weeks during the artificial propagation. In general, the influent factors are considered as bad water quality. detriment of poison algae. bacteria infection and deficiency of algal feed. This study was focused on the isolation and cultivation of larval abalone feed( micro diatoms ) to try to conquer the problem. At the first, the micro diatoms for lar...

Chih-Hao Chang, 張智豪

碩士 / 國立臺灣大學 / 動物學研究所 / 91 / Heavy metals, Zn, Cd, Hg and Cu, are the major contaminants in ocean. They are released by industries and then washed by rain and finally flow into ocean. Abalone (Haliotis diversicolor ), an economically important mollusc living in coastal waters, have a great possibility to expose on those heavy metals. When heavy metals get into its hemolymph, the physiological hemocytes might be affected. The purpose of this research is to investigate how heavy metals affect hemoc...