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Showing 1 to 20 of 96 for “"Abalone"”.
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The biology of the abalone Haliotis Midae
The abalone Haliotis midae is commercially exploited in South Africa. A maximum production of canned abalone was attained in 1965, when about one point five million lbs. were produced. Subsequently the catch has declined, due to overfishing, and in 1968 canned production fell to about seven hundred …
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Assessment of the sustainability of Victorian abalone resources
Many of the world's abalone fisheries have collapsed and in the past 25 years global abalone production has almost halved. Australia now produces 55% of the world's wild abalone and its abalone fisheries are close to, or above, their limits for sustainable yield. Although recruitment over-fishing …
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Triploid induction in the South African abalone, Haliotis midae
… 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. 1-¹ seawater) and elevated …
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An investigation of the implications of the decision to close the abalone fishery and the impacts on abalone rights holders in Kleinmond, South Africa
… the implications of the decision toclose the abalone fishery and the impacts of this decision on abalone rights holders inthe Kleinmond community in the Western Cape Province of South Africa. This dissertation also looked at the role that marine resources play in the livelihoods of fishers and …
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An energy budget for the South African abalone Haliotis Midae
This study aims to quantify both the individual and population energy budgets of the large edible gastropod Haliotis midae, and is divided into three major sections. Section 1 deals with diet and section 2 the consumption rate, absorption efficiency, respiration rate and rate of ammonia excretion, …
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The role of enteric bacteria in the Abalone, Haliotis Midae
… 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 …
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Influences of the abalone Haliotis midae on subtidal benthic communities
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 …
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Extraction and Characterisation of Bioactive Compounds From New Zealand Black-Footed Abalone
… food, cosmetic and pharmaceutical products. Abalone, a marine organism, have believed to provide health benefit with consumption for many years. Recent research has shown that abalone contain physiologically active chemicals with diverse modes of action, including antioxidant, antibacterial, …
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Microorganisms associated with ulva grown in abalone effluent water: implications for biosecurity
… production of high value goods such as abalone. Intensive aquaculture operations along the coastline release effluent water into the surrounding coastal waters, which has adverse impact on the environment. As a means to bioremediate abalone effluent, several commercial abalone farms in …
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Growth and the energy budget of juveniles of the abalone Haliotis tuberculata (L.)
… of the most commercially important European abalone {Haliotistuberculata) was evaluated during the summers of 1996,1997 and 1999. The results of the present study show that the best time to start with semi-artificial spawning is from mid July using cultured abalone from the open sea in …
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Midaesin - a histone H2A antimicrobial peptide from the South African abalone, Haliotis midae
The South African abalone, Haliotis midae, is a commercially important shellfish that is farmed in the Western Cape. Histone H2A-derived peptides investigated from various organisms have been shown to act as antimicrobial peptides (AMPs) against a range of microbes. Therefore, the aim of the study …
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Optimising the growth of Cryptococcus species SS1, a potential probiotic for farmed abalone
Farmed abalone is a reliable and good quality source of abalone. Cryptococcus species SS1 was isolated from the gut of the South African abalone, Haliotis midae, and has been identified as a potential probiotic for farmed abalone. The implementation of strain SS1 as a probiotic for aquacultured …
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Optimising the growth of Cryptococcus species SS1, a potential probiotic for farmed abalone
Farmed abalone is a reliable and good quality source of abalone. Cryptococcus species SS1 was isolated from the gut of the South African abalone, Haliotis midae, and has been identified as a potential probiotic for farmed abalone. The implementation of strain SS1 as a probiotic for aquacultured …
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The effects of feed supplemented with omega-3 polyunsaturated fatty acids on cultured abalone
… performance of adult cultured Jade Tiger hybrid abalone. It also examined the effects of replacement of FO with vegetable oils on fatty acid composition, expression of desaturase and elongase genes, and growth performance of abalone. In addition the contents of total lipid and fatty acid of …
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A proteomic investigation of the immune response of the South African abalone, Haliotis midae
Haliotis midae is a commercially important abalone in South Africa, previously harvested from a stable, quota-managed fishery. However, the combined effects of overharvesting, increased illegal catches and negative environmental factors led to a collapse in wild populations in the mid-90s. …
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Pseudoalteromonas sp. strain C4 as a probiotic for farmed South African abalone, Haliotis midae
… and decreased the susceptibility of farmed abalone to pathogenic bacterial infection. The mechanism by which the probiotic is able to increase growth rates and reduced susceptibility to pathogen infection was investigated. A number of bacterial strains were isolated from the digestive tract …
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