The Pacific abalone Haliotis discus hannai is used for commercial aquaculture in Korea. We examined the transcriptome of Pacific abalone Haliotis discus hannai siblings using NGS technology to identify genes associated with high growth rates. Pacific abalones grown for 200 days post-fertilization were divided into small-, medium-, and large-size groups with mean weights of 0.26 ± 0.09 g, 1.43 ±...

Black abalone, Haliotis cracherodii, populations along the NE Pacific ocean have declined due to the rickettsial disease withering syndrome (WS). Natural recovery on San Nicolas Island (SNI) of Southern California suggested the development of resistance in island populations. Experimental challenges in one treatment demonstrated that progeny of disease-selected black abalone from SNI survived b...

Abstract Antifouling paint particles (APPs) and associated metals have been identified in sediments around boatyards marinas globally, but the effects of APPs on benthic organisms are largely unknown. Sub-lethal endpoints were measured following laboratory exposures harbour ragworm (Hediste diversicolor ) common cockle (Cerastoderma edule) to environmentally relevant concentrations biocidal (‘m...

Exposure of nearshore animals to hypoxic, lowpH waters upwelled from below the continental shelf and advected near the coast may be stressful to marine organisms and lead to impaired physiological performance. We mimicked upwelling conditions in the laboratory and tested the effect of fluctuating exposure to water with low-pH and/or low-oxygen levels on the mortality and growth of juvenile red ...

Nacre, or mother-of-pearl, the tough, iridescent biomineral lining the inner side of some mollusk shells, has alternating biogenic aragonite (calcium carbonate, CaCO(3)) tablet layers and organic sheets. Nacre has been common in the shells of mollusks since the Ordovician (450 million years ago) and is abundant and well-preserved in the fossil record, e.g., in ammonites. Therefore, if any measu...

Seasonal variations play a crucial role in the physiology, immune responses, and nutritional profile of aquatic animals. Unpredictable water temperature fluctuations, especially those caused by climate change, may negatively affect feed consumption growth cultured organisms, such as abalone. In addition, metabolic changes across different seasons have significant effects on aquaculture producti...

Australian abalone aquaculture is characterised by a prolonged culture period and slow variable growth, cultured in fluctuating water temperatures ranging between 10 25°C with distinct seasons. Temperature crucial environmental factor influencing abalone’s physiology energetics, leading to change nutritional requirements. However, feeds are generally formulated match the requirements at their o...

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