Hepcidin is known to be expressed in fish with bacterial challenge and iron overload. Here we first report the hepcidin expression induced in the developmental stages from embryo to fry of red sea bream (Pagarus major) and in juvenile black porgy (Acanthopagrus schlegelii B.) upon continuous waterborne exposure to BaP. The gene expression of CYP1A1 and IgL (immunoglobulin light chain) were both...

Kinetic analysis was done on the 46-kDa chitinase (EC 3.2.1.14) purified from the stomach of red sea bream, Pagrus major, using glycolchitin and N-acetylchitooligosaccharides (GlcNAc(n), n=2-6) as substrates. High activity was observed at two pHs, such as 2.5 and 9.0, toward glycolchitin as seen in other insect chitinases, and also at both pH 2.5 and 5.0 even toward a short substrate, N-acetylc...

Lactic acid bacteria (LAB) collection was identified from enteric organs of healthy sea bass and sea bream cultured in tunisia. Thus we charecterized mainly Enterococci group with predominance of E. faecium (53%) and E. faecalis (21%). E. sanguinicola, E. casseliflavus, E. mundtii, E. gallinarum, E. pseudoavium, lactococcus lactis, Aerococcus viridans and Carnobacterium sp. were also identified...

Estimates of early-life traits of fishes (e.g. pelagic larval duration (PLD) and spawning date) are essential for investigating and assessing patterns of population connectivity. Such estimates are available for a large number of both tropical and temperate fish species, but few studies have assessed their variability in space, especially across multiple scales. The present study, where a Medit...

We present the complete genome sequence for a novel Edwardsiella ictaluri-specific bacteriophage, PEi21, isolated from river water in Japan. An initial comparative genome analysis revealed that the phage was closely related to the previously reported Edwardsiella tarda phage MSW-3 isolated from a red sea bream farm in Japan.

Citation: Morais P, Parra MP, Baptista V, Ribeiro L, Pousão-Ferreira P and Teodósio MA (2017) Response of Gilthead Seabream (Sparus aurata L., 1758) Larvae to Nursery Odor Cues as Described by a New Set of Behavioral Indexes. Front. Mar. Sci. 4:318. doi: 10.3389/fmars.2017.00318 Response of Gilthead Seabream (Sparus aurata L., 1758) Larvae to Nursery Odor Cues as Described by a New Set of Behav...

Early feeding (started during gut metamorphosis and establishment of the hypothalamic-pituitary-interrenal axis) with probiotic-supplemented diets, besides modifying the intestinal microflora, evoked profound effects on the physiology of fish larvae. Using rotifers and Artemia as living vectors, the autochthonous bacterium Lactobacillus delbrueckii delbrueckii or a multispecies probiotic formul...

Three species of seabreams, Acanthopagrus berda, Acanthopagrus schlegelii and Pagrus major, living at different depths, were chosen to investigate how visual spectra and opsin genes evolve in response to various photic environments. The lambda max of photoreceptors and opsin genes were measured and cloned from these species. Eight to twelve nm spectral shifts in the rod and blue cone cells were...