This article is addressing the issue of aquaculture generated pollution and need to monitor control this problem at international level. The rapid global expansion intensive production creates conditions in which farmed fish can be constantly exposed pathogens use chemicals such as antibiotics, antifoulants, disinfectants are regularly required. growth intensification method were accompanied by increased therapeutics antibiotics other agricultural sectors embraced effective way treating...

Probiotics for freshwater fish farming can be administered as single or multiple mixtures. The expected benefits of probiotics include disease prophylaxis, improved growth, and feed conversion parameters, such the rate (FCR) specific growth (SGR). In current work, we review impact on finfish aquaculture. Data were gathered from articles published during last decade that examined effects FCR, water quality in fishponds/tanks. While are significant, reviewed data indicate a range level...

This study aimed to evaluate the efficiency of an integrated multi-trophic aquaculture (IMTA) system comprising co-cultured fed fish and organic extractive species representing three distinct trophic levels as well impact potential utilization two commercially available feeds made up 35% meal (FM) 20% (LFM) ingredients, using a multi-indicator assessment approach. Significant alterations were observed in growth performance indicators (GPIs), water sediment quality indices, toxicity tests...

Previous work has shown that higher incubation temperatures produce newly hatched salmon (Salmo salar) with fewer but larger muscle fibres than incubated at colder temperatures. Our purpose was to study the effect of differing on development cellularity in posthatch salmon. Eggs from a single pair Atlantic were either stream ambient temperature (fluctuating around 5 °C prehatch and gradually rising 10 posthatch) or 11 °C. From each group, samples taken hatching, first feeding, 3 weeks after...

Summary Reared meagre ( Argyrosomus regius ) of average weight 1278 g was evaluated for its filleting yield and fillet lipid quality. Filleting averaged 42.2%, while very low levels muscle fat deposits were measured (1.06%). Analysis classes revealed a high proportion polar lipids (48.3–59.1%) neutral fatty acids (40.9–51.7%) when compared to corresponding values other farmed fish species. Phosphatidyl‐choline (PC) the dominant (2.92 mg −1 muscle), cholesterol most abundant (1.68 muscle)....

Meagre (Argyrosomus regius) is an important species in aquaculture, with size and flesh quality playing key roles its production marketability. This study aimed to examine the relationship between growth parameters, including fatty acid content (FA), Total antioxidant capacity (TOAC), Superoxide dismutase (SOD), lipid oxidation (LO), muscle cellularity (MC), filleting yield (FY) during cold storage. Fish from same hatchery, raised under identical conditions, showed variation after 12 months....

Meagre (Argyrosomus regius) is an important species in aquaculture, with size and flesh quality playing key roles its production marketability. This study aimed to examine the relationship between growth parameters, including fatty acid content (FA), total antioxidant capacity (TOAC), superoxide dismutase (SOD), lipid oxidation (LO), muscle cellularity (MC), filleting yield (FY) during cold storage. Fish from same hatchery raised under identical conditions showed variation after 12 months....

The purpose of this work was to investigate the size-relative effectiveness clove oil as an anaesthetic for rainbow trout and goldfish. In total, 128 ( Oncorhynchus mykiss ) (two groups 20-23 30-33 cm mean fork length) 160 goldfish Carassius auratus (four size 1.5-2.5, 5-7, 11-15 20-25 cm) were anaesthetized at different concentrations 50, 100, 150 mg·l -1 trouts 75, Rainbow exhibited total loss balance no response external stimuli with shorter induction time dosage increased (120.5 s, 64.4...

The aim of the present work was to compare fatty acids profiles wild and farmed Mediterranean sea bass (Dicentrarhus labrax L.). Wild fish exhibited higher moisture content 74.6 (±1.1%) compared (69.1 (±1.8%) Total fillet lipid (1.68% ±1.9) (7.31% ±1.59) in fish, respectively. perivisceral fat (25.87 ±5.78) (0.11 ±0.02). Biochemical differences were also observed acid profile fat. Docosahexaenoic (DHA, C22:6 n-3) dominant fillets instead linoleic (C18:2 n-6) fish. An increased presence a...

The present work aims to review and describe the current status of invasive species Callinectes sapidus Rathbun, 1896, along Ionian coastal zone Greece assess its potential. Blue crab has a long invasion history in Mediterranean Sea, but available data on occurrence sub-region are scarce fragmented. proximity most estuaries lagoons local ports shipping routes, as well swimming/dispersal ability adults species, indicate that range expansion will likely continue. invasiveness risk region was...

This study aimed to investigate the effects of heavy metals, such as copper, zinc, iron, cobalt, chromium, aluminium, manganese and molybdenum, on zebrafish egg hatching rate subsequent survival larvae. Each metal was used in various concentrations of0.05 mg/L, 50 mg/L 500 detect threshold limit tolerance. The study's results showed significant differences larvae between control group most experimental groups when adding metals concentrations. highest concentration (500 mg/L) induced tested...

Sea bass, Dicentrarchus labrax (L.), juveniles (1.32 g) grew at a rate of 4.2% per day, when fish were fed ad libitum and reared optimal thermal conditions (ambient sea water temperature, 20-26°C). At 13°C, feeding spontaneous activity severely restricted somatic growth was reduced to 0.6% day. Over period 6 weeks, both muscle fibre hyperplasia nuclear division higher in the ambient-temperature group compared with 13°C. Despite differences activity, paralleled by lateral axial temperature...

Legislation and interest exists to protect restore freshwater marine ecosystems from the environmental impact of aquaculture. However, aquaculture-induced eutrophication remains a major concern. Water soluble phosphorus, uneaten feed, feces, metabolic waste farmed fish increase phosphorus concentrations in adjacent waters. In open farms, particular, effects can be more immediate, as excess is introduced directly into ecosystems. Several intestinal enzymes, transporters, regulating factors...

Chromosome engineering was used to develop lines that expressed the stable phenotypic characteristics of goldfish, Carassius auratus (var. oranda). To obtain androgenetic individuals, carp eggs were irradiated and fertilized with sperm from goldfish bearing telescopic eyes. The divided into four groups three them subjected heat-shock treatment at 42 degrees C for 2.0 min 34, 37 40 after fertilization. All exhibited low viability embryos hatching severely deformed on head, yolk sac tail 100%...

Slaughtering methods of farmed fish can influence swimming activity and stress levels with consequences for the flesh quality properties fillets. For example, muscle metabolic prior to death affect concentration oxygen, ATP pH muscle. Handling harvesting is characterized by increased which leads anaerobic metabolism while energy stores are depleted white drops leading acceleration autolytic reactions after organoleptic parameters fillets filleting yield fish. In addition food aspects...

In the present study, we focused on nitrogen and phosphorus levels generated by open flow freshwater fish farms in Greece Iceland where salmonid are cultivated.There several differences legislation regulation of aquaculture sector Iceland.Nevertheless, both countries, environmental protection agencies need accurate information for nutrient processes order to evaluate influence surrounding waters salmon aquaculture.Data were collected from surveys 21 9 Iceland.The surveyed practiced intensive...