Vibrio harveyi is a common aquaculture pathogen causing diseases in a variety of aquatic animals. The extensive use of antibiotics for managing V. harveyi has led to the ban of import of fish in many countries due to the presence of antibiotic residues and the concern of the emergence of antibiotic-resistant bacteria. This study aimed to investigate the phenotypic characterization and antimicrobial

The feeding preference of the mandarin fish, Siniperca chuatsi, for live bait fish over pellet feed increases the costs and risks of breeding. Animal feeding behavior is directly or indirectly influenced by intestinal flora and innate immunity. Probiotics have been shown to regulate intestinal flora and stimulate innate immunity in a variety of species. In this study, during the pellet-feed feeding

The Norwegian aquaculture industry faces pressure from stakeholders, the public, and government to ensure sustainable production. Sustainability is closely linked with solving key environmental challenges. Standards such as those created by the Aquaculture Stewardship Council (ASC) are universal and generally provide what is known as additionality to state regulation, such as more comprehensive requirements

Liver myxobolosis, caused by Myxobolus wulii severely prevents the sustainable development of gibel carp (Carassius auratus gibelio) aquaculture in China. More insights into the host-parasite interaction will undoubtedly help to develop potential solutions to control this myxobolosis. Liver is an important organ to perform immunological and metabolic functions, changes of gene expression profile involved

Global fish consumption is expected to reach 194 million tonnes by 2026 (FAO, 2017). As a result, careful consideration must be given to the environmental impacts of aquaculture expansion, including potential pollution of receiving waters with effluent from the growth and processing of fish products. The main aim of this study was to improve fish processing wastewater treatment by reducing the dissolved

As a greenwater technology, coculturing microalgae with shrimp can improve the rearing water microenvironment and optimize aquaculture sustainability. However, little is known about the extent to which rearing water bacterial communities can be regulated by coculturing and how it occurs. Here, using 16S rRNA gene amplicon sequencing, we investigated the assembly of the bacterial community in a shrimp

We analyzed the short- (2030) and long-term (2100) impacts of elevated seawater temperatures on the 14 most important aquaculture species around the Korean Peninsula under two representative concentration pathways (RCPs) scenarios: RCP4.5 and RCP8.5. Under these scenarios, the differences in sea surface temperatures that currently exist (i.e., where the South Sea is warmer than the East Sea and West

The release of nutrients and anti-nutrients from mangrove leaf litter plays an important role in the biogeochemical cycling in aquatic environments and directly or indirectly affects water quality and food availability to shrimp. In this study, we assessed nutrient and anti-nutrient loss during decomposition of leaf litter at a concentration of 1 g/L for four mangrove species (Avicennia officinalis

Gonadal soma-derived factor (gsdf) is a teleost- and gonad-specific growth factor involved in gonadal differentiation and early germline cell development. In protogynous grouper, the androgen-induced precocious male phase is transient, and a reversible sex change (induced male-to-female change) occurs after chemical withdrawal. In this study, we used MT (17α-methyltestosterone)-induced bi-directional

Feeding is a key factor in the growth performance of rainbow trout farming, its sustainable production and profitability. However, supplying the daily ration in trout farming in flow-through system without any control is an inconceivable practice both economically and environmentally. In this study, the effect of different feeding regimes has been evaluated to optimize growth performance minimizing

Different strategies have been adopted aiming to improve either performance, water quality and health on intensive shrimp farming, including the manipulation of the bacterial community in biofloc technology (BFT) systems. The experimental design was completely randomized, with three treatments in triplicate developed in BFT without water exchange; CONT (control, only BFT without external addition of

The culture of African catfish (Clarias gariepinus) faces a number of challenges which have to be addressed in view of the growing economic importance of this fish. The captive larvae and early juveniles are aggressive and cannibalistic, resulting in considerable economic losses and shortage of seed to meet demands of the farmers. Improving larval survival and health while the fish is held in captivity

The black seabass (Centropristis striata) is a marine teleost that is highly valued in commercial and recreational fisheries worldwide, but the industry suffers heavy economic losses each year due to disease outbreaks. To better understand the immune reaction to bacterial infection, we challenged black seabass with 1 × 108 CFU/mL of Vibrio harveyi, sampled the head kidney from control and infected

The addition of external carbohydrate in Pacific white shrimp (Litopenaeus vannamei) culture has shown positive effects on water quality and shrimp performance. However, this practice requires additional skills and labor, and therefore may not be widely adopted. This research investigated the potential to combine the carbon source and the feed in one pellet in shrimp culture. The carbon source used

Phospholipids, especially phosphatidylcholine (PC), are considered essential nutrients for larval and juvenile stages of many decapod crustacean species due to low rates of endogenous biosynthesis and potential nutritional benefits in assisting lipid digestion and transport. This study was conducted to test the hypothesis that dietary PC is essential and would subsequently have beneficial effects on

Little information is available on differences between maternally and artificially incubated eggs in the economically important crayfish Procambarus clarkii. Brood care in this species is expected to exert effects on the eggs. In this work, we evaluated the hatching rates of artificially incubated eggs, without brood care, compared to those maternally incubated through different development stages

The infectious diseases caused by Vibrio species have posed a major challenge in the shrimp aquaculture industry. Owing to the increasing prevalence of multi-drug resistance in Vibrios, newer targets and antibiotics are urgently needed to combat these pathogens. 1-deoxy-D-xylulose-5-phosphate reductoisomerase (DXR) is the first committed enzyme of the methyl erythritolphosphate (MEP) isoprenoid biosynthetic

The loss of fish in the seawater (SW) phase of Atlantic salmon farming is high, and a major proportion of this loss occurs in the period just after SW transfer. In the current study, we hypothesize that improvements made to the diet during the freshwater (FW) stage affect fish growth, survival and robustness later in the SW stage. To test this, salmon parr were fed five experimental diets in FW at

The scientific research on aquaculture efficiency and productivity has been increasing over the years. This study aims to identify the publication trends and growth potential of aquaculture efficiency and productivity studies. A bibliometric analysis was employed for a sample of 85 scientific articles published during the 1998–2020 period. The findings show that authors and institutions have close

During the last decade, oyster aquaculture has rebounded in Virginia and has been associated with an increase in subaqueous leased area. Production levels remain historically low, however, and many leases are thought to be underutilized. This study uses a novel approach leveraging high-resolution environmental data to evaluate lease utilization and identify constraints on aquaculture development. Stochastic

Threonine is an essential amino acid in fish nutrition, but no information is available on the dietary threonine requirement in largemouth bass, Micropterus salmoides. Thus, 360 fish (19.0 ± 0.1 g) were randomly divided into six experimental groups (20 fish per cage; three replicates), and offered diets supplemented with crystalline L-threonine at 0 g kg−1 (control), 2.5 g kg−1 (Thr-2.5), 5.0 g kg−1

Enterocytozoon hepatopenaei (EHP) is a parasite that causes hepatopancreatic microsporidiosis and is associated with shrimp growth retardation. The intestinal bacterial is an important biological barrier against pathogen invasion. In this study, we investigated the intestinal bacterial and hepatopancreas transcriptome responses of Litopenaeus vannamei to natural EHP infection. Compared with the healthy

The dusky kob Argyrosomus japonicus is an emerging aquaculture species in South Africa. To support industry growth, existing hatcheries frequently sell or donate excess eggs to neighbouring farms, raising concern over the potential transfer of infectious disease agents. Chemical disinfectants are frequently used to prevent transmission of diseases, but their application has shown large variations between

With the increasing density of shrimp breeding, environmental deterioration and stress associated with intensification have caused diseases occurred frequently. Due to the high fatality rate of decapod iridescent virus 1 (DIV1), a new type of virus discovered in shrimp in recent years, it has caused serious damage to the shrimp farming industry. Penaeus monodon is one of the commonly cultivated species

Intestinal microbiota play an important role in animal health and disease. Until recently, the intestinal microbiota in white spot syndrome virus (WSSV)-infected red swamp crayfish (Procambarus clarkii) at different health statuses have not been studied. This study investigated the intestinal microbiota of healthy crayfish (HC), WSSV-infected active crayfish (IAC) and WSSV-infected diseased crayfish

The present study investigated the biological basis of cannibalism in Pseudoplatystoma reticulatum. Newly-hatched P. reticulatum were reared under a standard rearing protocol up to 50 days after hatching (DAH). Fish samples were periodically collected to construct a predictive model of the morphological limits of cannibalism. This model was further validated by the outcomes of a pairwise predation

The current goal of aquaculture sector is to increase stocking densities while sustaining the aquatic animal's health. Here Nile tilapia were allocated in 27 aquaria (100L) at 3 different stocking densities: low rearing density (LRD) at ~1.15 kg/m3; medium rearing density (MRD) at ~2.3 kg/m3; and high rearing density (HRD) at ~4.6 kg/m3. Each stocking density was fed one of 3 oregano essential oil

The natural stock of Trichogaster chuna (Hamilton, 1822) are gradually declining due to destruction of its habitat and over fishing, continuous exploitation of their wild populations might endanger them. This article evaluates breeding performance of honey gourami using different substratum for nest building, embryonic development and larval rearing in indoor aquarium at different stocking densities

The cDNA of rbp1a, rbp2a, rbp2b, rbp5, and rbp7b genes was cloned and characterized in brown trout, and their mRNA expressions in response to different levels of dietary soybean oil (SBO) were determined along with their growth parameters, muscle fatty acid (FA) profile, and hepatic retinol level. Dietary SBO did not affect the growth parameters, survival, and hepatosomatic index. The FA composition

TRIM33 is a member of the tripartite motif (TRIM) superfamily which contributes to regulate a multitude of cellular processes, including innate immune responses. Viperin_sv1 has recently been identified as a novel splice variant of viperin that triggers a strong antiviral effect by activating the interferon signaling pathway. SVCV infection is known to cause the degradation of viperin_sv1 through a

Viral nervous necrosis (VNN) caused by nervous necrosis virus is a serious disease affecting a wide range of marine, brackishwater and freshwater fishes. The disease causes acute mortalities in larval and early juvenile stages while adult fishes are asymptomatic and remain as carriers of the virus. In the present study, nervous necrosis virus was isolated from ovarian fluids of asymptomatic wild-collected

One of the major threats to the seabass (Dicentrarchus labrax) aquaculture sector is the development of vibriosis, a disease caused mainly by bacteria from the family Vibrionaceae, especially Vibrio harveyi. Given the relationship between abundance in the surrounding environment and prevalence in fish, monitoring the presence of V. harveyi in rearing water and biofilms over time may help better understand

Two sets of experimental trials (45 days each) were carried out to optimize protein requirement and stocking densities of Indian white shrimp, Penaeus indicus post-larvae in nursery rearing. In experiment 1, the effect of varying dietary protein levels (30, 40, 50, and 60%) on the growth performance of nursery reared P. indicus (PL12) was evaluated. The experiment 2 had 3 × 3 factorial design with

Global change projections predict significant impacts on the aquaculture sector leading to a substantial interest in the study of species' ecophysiological responses to increased temperature and shifting salinities. Here, we experimentally evaluated shifts on the fatty acid (FA) profiles of the ragworm Hediste diversicolor under global and local ocean change drivers. This polychaete is a suitable extractive

β-defensins (BDs) are small-molecule cysteine-rich cationic antimicrobial peptides that play an important role in innate immunity against microbial invasion. In this study, a β-defensin (SmBD) was identified and characterized from turbot (Scophthalmus maximus). SmBD has an open reading frame containing 192 bp and encodes a protein of 63 amino acids. It has a predicted signal peptide consisting of 20

Edwardsiella piscicida is a leading pathogen that threats seawater and fresh aquaculture, in which the emergence and prevalence of bacterial resistance to antibiotics is a tricky problem. Currently, the pathogenesis of E. piscicida remains unclear, some new pathogenic factors need to be identified. Serine permease and dehydratase exist ubiquitously in microorganisms and participate in pathogenicity

Betanodavirus infections have been associated with significant economic losses in Mediterranean marine aquaculture due to viral nervous necrosis (VNN). Recently, RGNNV/SJNNV reassortant betanodavirus has been reported as a possible cause of disease in Sparus aurata. In this study, mortality events occurred in cultured gilthead sea bream from 19 to 26 days of age, coming from an Italian aquaculture

Drug-resistant bacteria are an increasingly serious threat to the aquaculture industry. In order to develop new methods to combat these bacteria, it is necessary to first understand their mechanisms of drug resistance. We previously isolated a potential probiotic strain, Streptomyces sp. NHF165, which produced cytotoxic actinonin against the aquaculture pathogen Vibrio anguillarum. In this study, a

Glycerol monolaurate (GML), a monoester formed from glycerol and lauric acid, is widely used in food, cosmetics, and dietary supplements. GML also has antiviral activity against enveloped viruses. In this study, we conducted a challenge experiment to assess the effects of GML on the survival of crayfish (Procambarus clarkii) infected with white spot syndrome virus (WSSV). Dietary GML treatment reduced

Exposure to menthol is expected to alleviate physiological and oxidative stress in fish. Yet, its effects as an anesthetic-like compound on the heart function and associated physiological and biochemical changes still need further clarification. This study aimed to analyze the effects of menthol on the cardiac function and oxidative stress responses of Colossoma macropomum exposed to short-term baths

Ketocarotenoids are high-value molecules with powerful antioxidant properties. They are widely used as a feed supplements due to their vital functions for animals, particularly for fish and marine animals. However, fish is not able to synthesize ketocarotenoids but consume them from diet. Here, we report metabolic engineering of fish cells and fish embryos for biosynthesis of ketocarotenoid from β-carotene

Aeromonas jandaei is an emerging fish pathogen associated with massive mortalities in cultured freshwater fish. This study investigated the morphological, biochemical, molecular, virulence, pathogenicity, and antimicrobial susceptibility characteristics of four strains of A. jandaei involved in the occurrence of mass mortalities of cultured Nile tilapia in an earthen pond farm and laboratory fibreglass

This study aimed to investigate the influences of alternative lipid sources rich in saturated and monounsaturated fatty acids (SFA and MUFA) supplemented with long-chain polyunsaturated fatty acids (LC-PUFA) on production performance and lipid metabolism of Rachycentron canadum (cobia) juveniles. An 8-week feeding trial was carried out using four isoproteic and isolipidic diets as follows: FO-D (fish

Desiccation is an important environmental stressor during crabs culture and transportation. In this study, we investigated oxidative damage, antioxidant capacity, immune-related enzyme activity and intestinal microbiota responses of Eriocheir sinensis subjected to aerial exposure stress for 96 h. The results revealed a significant increase in lipid peroxide (LPO) and malondialdehyde (MDA) levels in

Despite the great commercial success, the Pacific white shrimp Litopenaeus vannamei farming has suffered great economic losses due to the impact of viral diseases such as White Spot Syndrome. Among the innovative approaches to mitigate viral diseases, one of the most promising is the manipulation of the eukaryote process known as interfering RNA (RNAi). This natural mechanism can be induced to improve

Carotenoid is an important economic trait for genetic and breeding in animals and plants. The noble scallop Chlamys nobilis is an important aquaculture bivalve in southern China. Studies in the noble scallop have shown that carotenoids content among individuals in their muscle are varies. In order to explain the variation, a genetic map was constructed in this study using F2 progenies with different

The Pacific oyster Crassostrea gigas (Thunberg, 1793) is the most cultivated bivalve in the world. Nonetheless, the massive production of microalgae as feed represents a substantial cost during laboratory production stages. The use of single cell detritus (SCD) from seaweed Ulva lactuca, cultivated in fish farm effluents, has been proposed as an alternative to microalgae Chaetoceros calcitrans in oyster

Photoperiod and temperature often change concomitantly in nature and regulate physiological responses that ultimately determine the health of species. However, the impact of these changes is poorly investigated from the perspective of optimal conditions for the management of fish, and the association of these variables. In this study, we evaluated the levels of oxidative stress, antioxidant response

This study was conducted to evaluate the effects of the feeding rate (0%, 2.5%, 5.0%, 7.5%, and 10% of body weight per day; BW.d−1) on growth performance, nutritional efficiency, and profitability of Nile tilapia (Oreochromis niloticus) juveniles (3.1 ± 0.1 g) using the biofloc technology (BFT) system for 70 days. Fish were randomly stocked (15 fish. Tank−1) in 24 experimental units (50 L), while water

We tested the hypothesis that the fate of dietary phosphorus will not differ among a dicalcium phosphate-free practical diet treated with 6-phytase (3000 FTU/kg; Quantum Blue™; P-F + Phy), and positive (C) and negative (P-F) control practical diets when fed to hybrid tilapia (Oreochromis aureus x O. niloticus; 29.8 g initial weight) stocked at 29 fish/m3 and grown for 5 months to market size (454 g/fish)

Intensive pond shrimp aquaculture produces a large quantity of organic deposits due to uneaten food and fecal matter. In this study, a laboratory feeding trial was conducted to assess the potential of using bottom-feeding mullets (Mugil cephalus) to reduce the negative impacts of marine shrimp farming. First, ingestion and absorption by M. cephalus of organic deposits collected from the pond culture

The Sydney rock oyster (SRO; Saccostrea glomerata) is the most intensively farmed oyster species in Australia however, Queensland unknown (QX) disease has resulted in substantial losses and impeded productivity. QX disease is caused by infection with the parasite Marteilia sydneyi, and like other diseases, outbreaks are driven by a series of complex environmental and host factors such as seasonality

The Pacific abalone, Haliotis discus hannai, is the economically important aquaculture species along coast regions of southeast China. However, the slow growth of abalone species impedes the health development of the abalone farming industry. In this study, the genome-wide association study (GWAS) for the growth related traits in Pacific abalone was performed. Genetic parameters of 10 growth-related

The Manila clam (Ruditapes philippinarum) was introduced in Europe in the 1970's and in the following years it became naturalized. Interactions with the native species include hybridization with the grooved carpet-shell (GCS) clam (R. decussatus), which may have both useful and undesirable consequences. Here we report an attempt to produce hybrids in captivity by crossing 3 females and 4–5 males of

The current research work was undertaken to evaluate the requirement of fingerling Catla catla (3.7 ± 0.5 g) for dietary pyridoxine. Triplicate groups of fingerling were fed casein-gelatin based iso-nitrogenous and isocaloric diets (350 g/kg Crude Protein; 16.72 Kj/g Gross Energy) containing eight different levels of pyridoxine (0, 0.5, 1, 2, 4, 6, 8 and 10 mg/kg diet) to satiation for 16 weeks. All