Listar por tema "Fisheries"
Mostrando ítems 21-40 de 96
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Early-weaning diets for gilthead sea bream (Sparus aurata L.) and their potential use in Hellenic marine fish hatcheries
(2014)The purpose of this experiment has been to evaluate the suitability of commercially available early-weaning microdiets (MDs) for the production of sea bream early juveniles and in comparison with late-weaning protocols ... -
EDITORIAL NOTE ON WEIGHT-LENGTH RELATIONS OF FISHES
(2011)Weight-length relations of fishes are useful for estimation of biomass from length observations, e. g., in fisheries or conservation research. Here we provide some guidance to authors of such papers, in order to facilitate ... -
Effect of dietary incorporation of a multi-strain probiotic on growth performance and health status in rainbow trout (Oncorhynchus mykiss)
(2015)Dietary supplementation with a multi-strain probiotic containing Bacillus subtilis, Enterococcus faecium, Pediococcus acidilactici and Lactobacillus reuteri has been examined for its effects on growth performance, intestinal ... -
Effect of feed and feeding in the culture of salmonids on the marine aquatic environment: a synthesis for European aquaculture
(2006)While marine aquaculture has grown rapidly, so have concerns regarding the environmental impacts caused by the industry. In particular, increasing discharges of solid and dissolved fish excretions, nutrients and therapeutic ... -
Effect of fish farming on the water column nutrient concentration in a semi-enclosed gulf of the Eastern Mediterranean
(2008)The spatial and seasonal impact of fish farming on the water column of two fish farms in the Eastern Mediterranean was investigated, between July 2004 and April 2005. In the area of each fish farm, three stations were ... -
Effect of musical stimuli and white noise on rainbow trout (Oncorhynchus mykiss) growth and physiology in recirculating water conditions
(2013)Two musical stimuli transmissions (Mozart and Romanza) as compared with white noise treatment or control, both resulted in significantly higher growth performance in juvenile (6.7 +/- 0.12 g) rainbow trout (Oncorhynchus ... -
Effect of Stocking Density on Growth and Survival of Sub-Adult Tench (Tinca tinca Linnaeus 1758)
(2012)Three hundred and fifty-nine (359) sub-adult tench were allocated to twelve tanks to investigate the effect of stocking density on survival and growth. The experimental population consisted of two weight groups (small = ... -
EFFECTS OF DIFFERENT DIETS ON THE DIGESTIVE PHYSIOLOGY OF ADULT NORWAY LOBSTER NEPHROPS NORVEGICUS
(2014)Rearing Norway lobsters for restocking is a management option to compensate fishing overexploitation, but this requires, among other topics, developing specific pellet diets. The activity of digestive enzymes and the ... -
Efficacy and toxicity of orally administered anticoccidial drugs for innovative treatments of Polysporoplasma sparis (Sitja-Bobadilla and Alvarez-Pellitero 1985) infection in Sparus aurata L
(2004)The purpose of this study was to test experimentally different drugs and therapeutic schemes in order to find a efficient commercial treatment for fish infected with myxosporeans. Two series of land-based experiments and ... -
Efficacy and toxicity of orally administrated anti-coccidial drug treatment on Enteromyxum leei infections in sharpsnout seabream (Diplodus puntazzo C.)
(2006)Three drugs effective against myxosporeans and commonly used to treat spore-forming parasites were tested in sharpsnout sea bream (Diplodus puntazzo) infected by Enteromyxum leei. Two medicated diets were applied, one ... -
Efficacy and toxicity of orally administrated anti-coccidial drugs for innovative treatments of Myxobolus sp infection in Puntazzo puntazzo
(2004)This study tested drugs and therapeutic compounds to determine effective commercial treatment for fishes infected with myxosporeans. Two series of shore-based experiments and 1 field trial were performed. For the shore-based ... -
Experimental transmission of Enteromyxum leei Diamant, Lom and Dykova, 1994 in sharpsnout sea bream, Diplodus puntazzo C. and the effect on some innate immune parameters
(2006)Enteromyxum leei has been implicated in outbreaks in sharpsnout sea bream, causing a serious economic impact on Mediterranean fish fanning. Information about transmission and life cycles of marine myxosporea is limited to ... -
Experimental treatments with diflubenzuron and deltamethrin of sea bass, Dicentrarchus labrax L., infected with the isopod, Ceratothoa oestroides
(2004)Sea bass with approximate average weights of 5 and 20 g were treated against Ceratothoa oestroides infection with: (i) medicated pellets of diflubenzuron PC90 at a dosage of 3 mg kg(-1) body weight (BW) per day for 14 days. ... -
Feeding frequency and feed intake in the African catfish Clarias gariepinus (Burchell 1822)
(2003)Triplicate groups of subadult catfish (Clarias gariepinus; 102.18+/-30.48 g) were fed a purified diet to satiation twice or three times a day during the daylight hours for 26 days. Fish fed twice a day consumed 1.42+/-0.49% ... -
First incidence of clinical signs of nodavirus infection in sea bream, Sparus auratus L
(2007)The causal agent of viral encephalopathy and retinopathy in fish is an RNA virus known as nodavirus, a member of the Nodaviridae family. According to published data, sea bream (Sparus aurata L.) that are infected with the ... -
First record of a Trichodesmium erythraeum bloom in the Mediterranean Sea
(2012)Trichodesmium erythraeum is a species of marine cyanobacteria that forms extensive blooms in tropical and subtropical areas, predominantly in the Indian and Pacific oceans. An extensive bloom of this species, identified ... -
Fish farming and anti-fouling paints: a potential source of Cu and Zn in farmed fish
(2014)The accumulation of copper and zinc, the basic components of anti-fouling paints, was examined in cultured sea bass Dicentrarchus labrax and sea bream Sparus aurata. Samplings were carried out at 4 eastern Mediterranean ... -
Fish farming effects on local fisheries landings in oligotrophic seas
(2006)The effects of fish-farming on local landings in five regions of the Aegean and Ionian Seas (eastern Mediterranean basin) were analysed, together with certain parameters related to environmental changes and fishing fleet ...