Yan-Fang Chen, 陳妍方

碩士 / 國立高雄第一科技大學 / 環境與安全衛生工程研究所 / 101 / The purpose of this study was to build up a continuous symbiotic process of algae and bacteria to use ammonium wastewater. For building up this process, the solution obtained from anaerobic hydrogen fermenter was added to glass column reactor culturing algae as a precursor for alga and bacteria. For having an optimal recirculating ratio of the reactor, series of batch cultures were performed under various ratios of 40, 50, 60, and 70 equipped with differen...

Chun Wan, 萬鈞

碩士 / 國立彰化師範大學 / 生物學系 / 103 / This study is explored an alternative raw material for pulping and papermaking, and to investigate the effect of different pulping conditions on the strength properties of handsheets made from the algae. The seaweeds of this investigation were collected from the coastal waters of northern Taiwan (Gelidium sp.) and southern Taiwan (Sargassum sp., Enteromorpha sp., Ulva lactuca). Twenty five gram seaweeds were cooking at 100℃ for 60min with 5%,10% (w/w) nitric acid to ...

Y.M.Chen, 陳逸銘

碩士 / 國立臺灣科技大學 / 化學工程研究所 / 84 /

Bin-Ju Chen, 陳品儒

碩士 / 國立高雄第一科技大學 / 環境與安全衛生工程研究所 / 103 / Symbiotic of algae and bacteria is an important relationship, which would directly/indirectly influence for having a friendly water body. This relationship resulted mainly from electronic exchange and their carriers such as the nutrients of algae and bacteria. They often played a role of electronic donor. Some studies revealed that dimethyl sulfide (DMS) might be a precursor in their symbiotic. Previous study indicates that a Bacillus sp. and Clostridiu...

Tien, Pei, 田珮

碩士 / 國立中正大學 / 化學研究所 / 85 / Abstract The research for the adsorption of metal ions by algae is divided into three parts. Part I described the immobilization of algae and their analytical performance of the immobilized algae for the preconcentration of trace Cu in water. Chlorella was used to study the immobilization of algae. Three different methods , silica gel , polyacrylamide and sodium silicate , w...

Shih An-chi, 施安琪

碩士 / 國立交通大學 / 環境工程所 / 90 / Raw water quality is deteriorating because of the excessive development of industries. Industrial pollution has caused eutrophication in surface water. It is speculated that algae may affect the coagulation and sedimentation processes in water treatment. The purpose of this study was to separate the coagulation between the simple inorganic particle and algae. Kaolin was the inorganic particle and Chlorella vulgaris was the biological particle used in this study. Sy...

Yuan-Hui Wen, 聞元輝

碩士 / 國立中興大學 / 生物產業機電工程學系所 / 94 / The stirring device of the algal reactor was designed and manufactured in this research. The effect on the growth of the alga Isochrysis aff. galbana by the impeller type and the rotation speed was also investigated. The three different types of impellers, the six flat-blade impeller, the MAXBLEND impeller, and the double helical ribbons impeller were first used to conduct the mixing time experiment, and obtained that the optimal performance was the double helica...

Tsang, Yu Man. / "November 2009." / Thesis (M.Phil.)--Chinese University of Hong Kong, 2010. / Includes bibliographical references (leaves 268-277). / Abstracts in English and Chinese. / Acknowledgements --- p.i / Abstract --- p.iii / Content --- p.vii / List of Tables --- p.ix / List of Figures --- p.xx / Chapter Chapter One --- General Introduction --- p.1 / Introduction --- p.1 / Coral Reefs --- p.1 / Coral-Algal Symbiosis --- p.2 / The Dinoflagellate Symbiodinium --- p.11 / Coral C...

Chiao-ming Wu, 吳僑鳴

碩士 / 國立中山大學 / 海洋環境及工程學系研究所 / 102 / In this study, the use of outdoor cultivation system for algae strains performance comparison, the results confirm that at the same environmental conditions, the growth rate of Scenedesmus obliquus CNW-N train is better than the other two species. Thus, the Scenedesmus obliquus CNW-N was chosen as the only candidate for testing the wastewater aquaculture experiments. From agricultural point of view, wastewater contains a verity of nutrient which is necessary ...

Chuang, Yao-Chia, 莊曜嘉

碩士 / 國立交通大學 / 環境工程研究所 / 84 / Water reserviors, major sources of water supply in Taiwan, have been partiallypolluted and become eutrophic, thereby resulting in the existance of algae inwater treatment operation. In general, the algae in source water can be removed by the flocculation and sedimentation process and incorporated in the sludge.The sludge containing algae appears more complex structure and its be...

張蒼碧

碩士 / 國立臺灣大學 / 植物學研究所 / 54 /

Yi-Xiang Huang, 黃意翔

碩士 / 逢甲大學 / 化學工程學所 / 100 / Abstract Microalgae were considered as one of the most potential resources for bioenergy production. There were some advantages, such as grew fast, occupied small area and fixed carbon dioxide quickly. In this study, the species named Scenedesmus sp. was obtained from NCKU. Scenedesmus sp. was grown on 250 mL of Detmer’s medium and used different carbon sources to replace EDTA‧2Na in Detmer’s medium. The culture conditions were continuous illumination of 7200 Lux, work...

JUI-CHIH LIN, 林叡志

碩士 / 逢甲大學 / 化學工程學所 / 99 / none

Shu-Ying Tseng, 曾淑瀛

博士 / 國立中興大學 / 獸醫學系暨研究所 / 107 / Shewanella infection is a zoonotic infectious disease which is one of the emerging sources of infection causing human infection within a consequence of global warming. The incidence of infections has been increasing with climate change. The majority of cases in clinics have underlying immunocompromising diseases and hepatobiliary diseases by soft tissue infection, bacteremia, and non-healing wound infection. The reason of Shewanellosis is underestimated because of ...

Hack, Fred Bernard.

Thesis (J.D.)--University of California, May 1927.

Yang, Hsi-Ming, 楊錫明

碩士 / 國立清華大學 / 材料科學工程學系 / 102 / Abalone nacre is a natural ceramic-based composite consists of 95 wt% stacked CaCO3 tiles and 5 wt% organic layers organized into a unique multilayer structure, which leads to exceptional fracture toughness. The major toughening mechanism is the crack deflection at the organic/inorganic interfaces so that the crack cannot propagate through the shell directly. Furthermore, interfacial roughness and interconnected mineral bridges between tiles can further prevent pla...

Kai-Wen Yang, 楊凱雯

碩士 / 國立臺灣大學 / 動物學研究研究所 / 93 / Most invertebrates do not have acquired immunity. However, innate immunity, which is faster-reacting and functions more extensively than acquired immunity, is the major type of immunity found in invertebrates. In this study, abalone (Haliotis diversicolor) hemocytes were used to elucidate the mechanism of phagocytosis, which is the most-significant function of innate immunity. Abalone hemocytes are classified into two categories: adherent and non-adherent cells. Amo...

Tai-Wei Li, 李岱威

碩士 / 國立臺灣大學 / 動物學研究所 / 99 / Hemocyte migration in invertebrates has been known to be involved in several important physiological functions such as phagocytosis and wound healing. In addition to chemotaxis or haptotaxis, the regulatory mechanisms on the cell migration are still needed to be clearly unraveled. In recent studies, reactive oxygen species (ROS) are not only generally considered as threat for cells, but also found as important modulators for some cell behaviors. In mammals, ROS can ac...

Mayfield, Stephen

Bibliography: leaves 195-213. / This thesis focused on two aspects of predation by the West Coast rock lobster (Jasus lalandii). These were (1) the problem of slow growth currently observed in adult male rock lobsters and the putative link between growth rate and food availability, and (2) the influence of rock-lobster predation on the benthos, but more specifically on sea urchins and juvenile abalone.

Sankar, Kishan

Includes bibliographical references (leaves 129-161). / Land-based abalone aquaculture in South Africa, based on the local species Haliotis midae, started in the early 1990's and has grown rapidly in the last decade. This has led to numerous studies into various aspects of farming H midae. There are two aims of this study, (i) to test the relative benefits of different ratios of kelp and the formulated feed Abfeed(R) K26 (feed component), (ii) to test the suitability of farming H midae with 50 %...

Smith, Melanie Jayne

Includes bibliographical references (leaves 62-71). / Knowledge of the chemical composition of marine macroalgae is important to understand their nutritional value for abalone as well as their potential as a source of protein, carbohydrate and lipid for commercial use. This study investigates the seasonal variations in chemical composition and nutritive value of Ecklonia maxima collected from various kelp beds near commercial abalone farms on both the west and south west coasts of South Africa. ...

Chalmers, Russell

Since the discovery of a new species of sabellid worm in 1993, the Californian and South African abalone industries have experienced increasing shell breakage and reduced growth rates of abalone, resulting in reduced market value of product. This polychaete worm can reach very high infestation levels. It was described as Terebrasabella heterouncinata in 1999, having originated from the South African coastline where it had been observed on several wild mollusc species. Although not a shell borer,...

Difford, Gareth Frank

Thesis (MScAgric)--Stellenbosch University, 2013. / ENGLISH ABSTRACT: The aim of this study was to critically assess the implementation of the internal reference method within the most recent 173 full-sibling growth trial of the Innovation Fund Abalone Breeding Project. The trial was conducted over two locations for a period of five years, with minimal replication for the majority of test families and a single full-sibling family was entered into each experimental unit (basket) as an interna...

Cross, Bronwen

Includes abstract. / Includes bibliographical references (leaves 241-268). / Alginate is a linear, un-branched polysaccharide of (1-4)-linked -D-mannuronate (M) and its C-5 epimer, -L-guluronate acid (G). These uronic acids are arranged in three different block types in the alginate polymer; poly-M, poly-G or poly-MG. Alginate lyases are enzymes that utilize a -elimination reaction to depolymerise the alginate polymer resulting in cleavage of the (1-4)-O-glycosidic linkage between monomers and...

Wood, A D (Aidan David)

The South African abalone Haliotis midae Linnaeus, 1758, is an important commercial, recreational and aquaculture mollusc species. It is the largest of the six haliotid species found in South African waters and has the second largest distributional range aside from Haliotis spadicea which is widely exploited by rock and surf anglers as bait. Analysis of population structure at Great Fish Point revealed that H. midae exhibited a high degree of microhabitat specificity, and that while dietary habi...

Slabbert, Ruhan

Thesis (PhD (Genetics))--Stellenbosch University, 2010. / ENGLISH ABSTRACT: The South African abalone, Haliotis midae, is a commercially valuable mollusc and is mostly exported to the Far East. Genetics research on H. midae has increased substantially since a genetic improvement programme was introduced in 2006 by collaboration between Stellenbosch University, government and industry partners. The development of molecular markers, QTL-mapping, gene-expression and genome manipulations are th...

Van der Merwe, Aletta Elizabeth

Thesis (PhD (Genetics))--University of Stellenbosch, 2009. / ENGLISH ABSTRACT: South African abalone, Haliotis midae, has been the subject of major concern regarding its survival and conservation over the last decade or more. Being the only one of five endemic species with commercial value, there is considerable interest and urgency in genetic management and improvement of this species. Limited genetic information and the increasing conservation concern of this species are considered the ke...

Henry, Neil Richard

Bibliography: leaves 122-135. / The successful aquaculture of the abalone Haliotis midae requires a multi-disciplinary approach. Experiments were designed to provide insight into various aspects of abalone biology and seawater system design. A comparative evaluation of a closed and open seawater system for an H. midae hatchery was performed. Monthly seawater temperatures and nitrite levels were higher in the closed system. The salinity of the closed system seawater varied more than that of the o...

Farrell, Daniel

Includes abstract. / Includes bibliographical references (p. 32-35). / Algal and invertebrate assemblages resident on abalone (Haliotis midae) shells at two subtidal locations in the western Cape of South Africa were investigated. Forty medium-sized (linear length 10 - 20 cm) abalone were harvested (along with forty complementary rock-face quadrat samples) from one site at Cape Point and two sites at Gansbaai and the resident species were identified and statistically compared.

De Waal, S W P

Bibliography: leaves 230-244. / The Namaqualand coast of South Africa has been targeted as a potential ranching area for the abalone Haliotis midae. A series of experiments and models were designed to: assess to what extent the area's babitat may support seeded juveniles, identify the characteristics of successful seeding sites, determine optimal seeding strategies, and investigate population dynamics and economics that may most influence commercial ventures. Most of the experiments took place o...

Omolo, Samson Odira

Bibliography: leaves 73-91. / Abalone exposed to air incurred greater metabolic and structural stress in muscle than do abalone at rest. Since foot and shell adductor muscle texture and flavor affect economic values of H Midae, the investigation sought evidence of differences attributable to transport of the commercial South African abalone based on environmental and exercise inducement. Tauropine dehydrogenase from Haliotis. midae muscle exhibits its highest activity 53.85 X 13.56 U g-...

Vlok, Arnoldus Christiaan

Thesis (MSc)--Stellenbosch University, 2015. / ENGLISH ABSTRACT: Cultured abalone in South Africa is undomesticated. For the local industry to remain competitive on the international markets it is essential to improve production. This study is part of a selective breeding component of a larger genetic programme that aims to enhance productivity of the local industry by genetic improvement of growth rates. Selective breeding programmes are based on genetic variation and correlations. Molecular s...

Gerber, Maria Elizabeth (Mariette)

Thesis (MScAgric)--Stellenbosch University, 2013. / ENGLISH ABSTRACT: The species Haliotis midae is of great commercial value to the South African abalone industry and is mainly exported to Asian markets, specifically China. Up to 50% is sold as canned products with H. midae registering an average canning yield of approximately 35%. The species is presently genetically undomesticated and breeding programmes are being introduced to improve a range of production traits of which growth and yield is...

Rhode, Clint

Thesis (MSc (Genetics))--University of Stellenbosch, 2010. / ENGLISH ABSTRACT: The South African abalone, Haliotis midae, is the only endemic species of commercial value. Aquaculture remains the only avenue for expanding the industry, since the closure of the fishery. The current focus is on implementing a molecular breeding programme; thus the development of molecular markers for linkage mapping and QTL analysis is a priority. Various markers, mainly anonymous, have been developed for H. midae;...

Ockert, Candice

Thesis (MSc (Genetics))--University of Stellenbosch, 2005. / Withering syndrome is a severe disease of abalone, Haliotis species that has been associated with mortality ranging from 99% in black, H. cracherodii Leach and 30% in red abalone, H. rufescens Swainson. The disease was first observed in California, along the west coast of North America and is an economically important disease that has led to the closure of the black abalone fishery throughout the southern California State. The causativ...

Vorster, Gysbert

Thesis (MSc)--University of Stellenbosch, 2003. / ENGLISH ABSTRACT: The genetic status of H. midae broodstock in the South African aquaculture industry reflects that of random samples originating from undomesticated wild populations. The nature of growth in abalone is very slow, taking between three and four years to reach a marketable size of between 60 to 100 grams. It is therefore of paramount importance to improve this trait in order to ensure global competitiveness and economic viabilit...

Schoonbee, Lize

Thesis (MScAgric)--Stellenbosch University / ENGLISH ABSTRACT: Triploidy is the genetic state of containing three sets of chromosomes per cell in stead of two as in diploid organisms. The South African abalone (Haliotis midae) is naturally a diploid organism that sexually matures between four to eight years of age. Early sexual maturity is a disadvantage in cultured abalone stock, as the process of gonad development and spawning is energy demanding, causing energy to be diverted away from so...

Prins, Nico

Thesis (MScAgric)--Stellenbosch University, 2011. / ENGLISH ABSTRACT: Abalone production is the largest financial contributor to aquaculture in South Africa and practically all of the abalone produced is exported to Asia. This means that the product must be globally competitive and many technologies have been applied to this cause. One that specifically shows great promise for bivalve mollusc production is triploidy; more precisely, sterility due to the induction of aneuploidy. Under normal...

Van Schalkwyk, Hester Josina

Thesis (MScAgric)--Stellenbosch University, 2012. / ENGLISH ABSTRACT: The abalone Haliotis midae is the most important aquaculture species in South Africa. The industry is dependent on export to Far Eastern markets in a variety of forms, including live, frozen, canned or dried. The species is considered undomesticated in the sense that the current commercial broodstock has been obtained from natural populations through a process of random collection. Global competition has necessitated the ...

De Beer, Mathilde

Thesis (MSc)--University of Stellenbosch, 2004. / ENGLISH ABSTRACT: The indigenous abalone, Haliotis midae has been a successfully cultured aquaculture species in South Africa since 1990. It has a slow growth rate and takes from two to five years to reach market size. Like for most other commercially important abalone species, the slow growth rate of H. midae is a cause of concern with regard to the profitability of farming and global competitiveness of the species. Ploidy manipulation of t...

Tsanigab, Salomon M.

Thesis (Msc Food Sc (Food Science))--University of Stellenbosch, 2009. / An 84-day study was conducted to find a suitable diet and feeding level for the culture of South African abalone (Haliotis midae) in Namibia. Two experimental diets, namely, a seaweed diet (SWD) Laminaria pallida (macrophytic algae) and a formulated diet (FD) (macro-algae), for use in abalone (Haliotis midae) feed development, were evaluated. The animals used in this study were juveniles (24.33 ± 3.14 mm shell length; 2.72 ...

Fourie, Lize

Thesis (MScAgric)--Stellenbosch University, 2014. / ENGLISH ABSTRACT: Haliotis midae (HM) is one of five indigenous abalone species occurring along the coast of South Africa, and is the only species commercially cultivated in open flow-through systems. Commercial production of HM contributes the most to income generated from aquaculture species in South Africa. Exports in 2011 totalled 1036 ton, which amounts to an income of ZAR 369 million (40 million USD). Commercial production of HM is ch...

Henderson, Ray Arthur

Thesis (MPhil (Animal Sciences. Aquaculture))--University of Stellenbosch, 2006. / T. heterouncinata is a sabellid polychaete endemic to South Africa and found primarily in the shells of the abalone Haliotis midae. With the intensification of abalone aquaculture around the world, T. heterouncinata has become a problematic pest by causing shell deformities, reducing abalone growth rates and, in some instances, high abalone mortalities. The problem of this sabellid was first noticed in Califor...

Muller, Liezl

In aquaculture, a thorough knowledge of the specific environmental requirements of a species is needed in order to maximize growth and survival rates. Several studies have helped develop the technology necessary for the intensive commercial culture of Haliotis midae. However, a considerable amount of research is still required to develop the most appropriate and optimal method for the cultivation of this species. In particular there remains a lack information on the feeding habits of the early ...

Robertson-Andersson, Deborah

Includes bibliographical references (p. 282-311). / The aim of this study was to investigate whether a land-based recirculating seaweed-abalone integrated aquaculture system using Ulva lactuca was feasible as well as to test the differences between a commercial gravel bed recirculation system to an existing flow through system. These studies were carried out at two abalone farms: Danger Point (I & J) (140 km east of Cape Town) and at Jacobs Bay (JSP) (120 km north of Cape Town. South Africa). In...

Reddy-Lopata, Kasturi

Includes bibliographical references (p. 104-116). / Ammonia is the major end-product of protein catabolism in abalone, and is excreted into the surrounding water. Build-up of ammonia in abalone aquaculture systems can reach high toxic levels and impact negatively on farming operations. Ammonia levels therefore have to be regulated. Accurate estimates of toxic un-ionized ammonia (FAN) from the total ammonia nitrogen (TAN) measured by photometer test kits is crucial as inaccuracies could result in...

Bird, Amanda Cathleen

<p> This study provides the first assessment of demographic and habitat information for pinto abalone (<i>Haliotis kamtschatkana</i>) in San Diego, California, two decades after the closure of all abalone fisheries in southern California. SCUBA surveys conducted from June 2014 to December 2016 indicate that current low densities (0-0.03 individuals/m²) were far below critical thresholds identified for other abalone species (0.15-0.30 abalone/m²) for successful spawning and ...

Kemp, Justin Oliver Gordon

The source of abalone for human consumption has shown a dramatic shift away from wild-capture fisheries in the last 30 years, with over 90% of global production now coming from aquaculture. Farmers initially relied on the natural food of abalone (macroalgae) as a culture feed, though in regions where macroalgae availability was limiting, the need to develop formulated feeds was evident. Extensive research effort has led to the development of a number of formulated feed products currently employe...

Witte, Warren

The potential for restocking depleted natural reefs with hatchery abalone, Haliotis midae, to support a commercial ranching venture in the Eastern Cape Province of South Africa was investigated. A baseline stock assessment and analysis of historical fishery data provided compelling evidence of significant declines in the abalone stock, attributed to uncontrolled illegal fishing over the last 20 years at the study site. A ranching pilot study was undertaken where small-scale replicated seeding ex...

Nel, Aldi

Formulated feeds with a relatively low (< 5 % of dry mass) kelp (Ecklonia maxima) inclusion level are widely used on commercial abalone (Haliotis midae) farms in South Africa. Although the use of kelp, a major constituent of the natural diet of H. midae, as a dietary supplement is considered to enhance abalone growth and feed utilisation, there are no published studies which quantify the effects of kelp inclusion in formulated feeds. Furthermore, the physiological mechanisms by which kelp supple...