A5054168951- Aquaculture Nutrition and Growth
- Reproductive biology and impacts on aquatic species
- Fish Ecology and Management Studies
- Fish Biology and Ecology Studies
- Aquaculture disease management and microbiota
- Genetic and Clinical Aspects of Sex Determination and Chromosomal Abnormalities
- Physiological and biochemical adaptations
- Marine and fisheries research
- Sperm and Testicular Function
- Marine Bivalve and Aquaculture Studies
- Aquatic life and conservation
- Animal Genetics and Reproduction
- Vitamin C and Antioxidants Research
- Consumer Attitudes and Food Labeling
- Ocean Acidification Effects and Responses
- Protein Hydrolysis and Bioactive Peptides
- Moringa oleifera research and applications
Technical University of Denmark
2016-2025
Temperature is important for optimization of rearing conditions in aquaculture, especially during the critical early life history stages fish. Here, we experimentally investigated impact temperature (16, 18, 20, 22 and 24°C) on thermally induced phenotypic variability, from larval hatch to first-feeding, linked expression targeted genes [heat shock proteins (hsp), growth hormone (gh) insulin-like factors (igf)] associated performance European eel, Anguilla anguilla. effects morphology gene...
Closing the life cycle of European eel (Anguilla anguilla) in captivity is targeted to provide a sustainable, year-round supply juveniles for aquaculture. Present focus on nutritional requirements during larval first-feeding period. In this study, three experimental diets were tested hatchery-produced larvae from onset stage commencing 10 days post hatch (dph) until 28 dph. Larval mortality was recorded daily, while sampling conducted at regular intervals record biometrics and analyze...
Digestive system functionality of fish larvae relies on the onset genetically pre-programmed and extrinsically influenced digestive functions. This study explored how algal supplementation (green-water) until 14 days post hatch (dph) ingestion food [enriched rotifer (Brachionus plicatilis) paste] from 15 dph onward affects molecular maturation European eel larval digestion mechanisms. For this, we linked biometrics to expression genes relating appetite [ghrelin (ghrl), cholecystokinin...
Temperature is one of the most relevant factors influencing development aquatic species, making it a key parameter to consider for aquaculture. Largemouth bass (LMB; Micropterus spp .) are highly human consumption and sport fishing, representing North America’s important freshwater fisheries. Yet, questions remain on how LMB raised in recirculating aquaculture systems (RAS) respond different temperatures. The main objective this study was determine impact thermal rearing conditions (21°C,...
European eel (Anguilla anguilla) is a euryhaline species, that has adapted to cope with both, hyper- and hypo-osmotic environments. This study investigates the effect of salinity, from morphological molecular point view on larvae reared 0 12 days post hatch (dph). Offspring in 36 practical salinity units (psu; control), were compared six scenarios, where was decreased or 3 dph rates 1, 2 4 psu/day, towards iso-osmotic conditions. Results showed several genes relating osmoregulation (nkcc2α,...
Egg biochemical composition is among the main factors affecting offspring quality and survival during yolk-sac stage, when larvae depend exclusively on yolk nutrients. These nutrients are primarily embedded in developing oocytes vitellogenesis. In aquaculture, assisted reproduction procedures may be applied enabling gamete production. For European eel (Anguilla anguilla), reproductive treatment involves administration of pituitary extracts from carp (CPE) or salmon (SPE) to induce sustain...
European eel, Anguilla anguilla, larval culture faces a bottleneck during the transition to exogenous feeding. To stimulate gut-priming, in present study, prebiotics (AgriMOS, mannan-oligosaccharides, and β-(1,3 1,6)-poly-D-glucose), probiotics (Bactocell, Pediococcus acidilactici), synbiotics (AgriMOS + Bactocell) were administered eel larvae endogenous prefeeding stage. Eel reared 2 L incubators with an initial stocking density of ∼200 larvae/L. Each treatment (pre-, pro-, synbiotics,...
Aquaculture production relies on controlled management of gametogenesis, especially in species where assisted reproduction is needed for obtaining gametes captivity. The present study used human chorionic gonadotropin (hCG) treatments to induce and sustain spermatogenesis European eel (Anguilla anguilla). aim was evaluate effects strip-spawning timing (12 vs. 24 hr) after weekly administration hCG the necessity a primer dose (in addition hormonal treatment) prior strip spawning (primer...
The transition from endogenous to exogenous feeding is critical during fish early life, where appropriate feed availability and timing of initiation influence survival. For European eel (Anguilla anguilla), establishing first culture at a pioneering state, successful production larvae has recently enabled experiments. In the present study, three diets potential benefits yolk-sac stage were explored, including molecular analyses genes involved in digestive functions growth. Three consecutive...
Establishment of European eel (Anguilla anguilla) hatchery production will rely on selectively bred individuals that produce progeny with the best traits in successive generations. As such, this study used a quantitative genetic breeding design, between four females and nine males (four wild-caught five cultured), to investigate effect paternal origin (wild-caught vs. cultured) quantify relative importance parental effects, including compatibility, early life history (ELH) performance (i.e....
European eel ( Anguilla anguilla ) is a commercially important species for fisheries and aquaculture in Europe the attempt to close lifecycle captivity still at pioneering stage. The first feeding stage of this characterized by critical period between 20 24 days post hatch (dph), which associated with mortalities, indicating point no return. We hypothesized that might also be larvae-bacterial interactions larval immune status. To test this, bacterial community composition expression...
If human exploitation of the "critically endangered" European eel (Anguilla anguilla) is to continue, eel's life cycle in captivity must be closed and techniques established produce viable offspring hatcheries. Despite stable production, high mortality rates during early developmental stages have hindered progress closing lifecycle captivity. We hypothesised that mortalities affecting embryos newly hatched larvae, when immune system expected play a vital role protecting offspring, could...