In mammals, a complex interaction between the immune and the reproductive systems has been described, in which testicular immune cells produce cytokines and growth factors which modulate gonad functions, while specific gonad cells influence the immune response in this organ. In this study we describe the presence of acidophilic granulocytes in the testis of the hermaphrodite teleost fish gilthe...

Research was carried out into the effect of partial and total fishmeal (FM) replacement by a vegetable animal proteins blend, as well inclusion microalgae in diets for gilthead seabream (Sparus aurata L.). Fish 64 g on initial weight were fed until apparent satiation 88 days. The control diet (FM100) contained FM main protein source, whilst FM25, FM10 FM0 diets, replaced 75%, 90% 100%, respecti...

Otolith morphological variability is used as a reliable indicator to discriminate fish that experience different environmental conditions during their lifetimes. The present study examined the effects of developmental temperature (DT) egg and yolk-sac larval period on otolith shape asymmetry Gilthead seabream in later metamorphosis (56–58 days post-hatching, dph) early juvenile stage (93–95 dph...

Vancomycin-resistant Enterococcus faecalis, E. faecium and E. durans isolates with the genotype vanA were detected in 7 of 118 faecal samples (5.9%) of natural gilthead seabream recovered off the coast of Portugal, and one vancomycin-resistant isolate/sample was further characterized. The genes erm(B), tet(L), tet(M), aac(6')-aph(2"), aph(3')-IIIa and/or ant(6)-Ia were identified in most of the...

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In this study, a total of 18 novel productive traits, three related to carcass [cNiT] and fifteen morphometric [mNiT]), were measured in gilthead seabream (Sparus aurata) using Non-invasive Technologies (NiT) as implemented IMAFISH_ML (MatLab script). Their potential be used industrial breeding programs evaluated 2348 offspring reared under different production systems (estuarine ponds, oceanic...

The endoscopic and histopathological findings detected in Sparus aurata experimentally infected with third-stage Anisakis larvae without intermediate host are evaluated and discussed. In six fish, live nematode larvae were introduced by gastroscopy into the stomach. The first observation by endoscope, 15 days after challenge, showed the presence of some larvae at the level of gastric mucosa. An...

It has long been established that lower vertebrates, most notably fish and amphibians, are resistant to the toxic effect of LPS. Furthermore, the lack of a TLR4 ortholog in some fish species and the lack of the essential costimulatory molecules for LPS activation via TLR4 (i.e., myeloid differentiation protein 2 (MD-2) and CD14) in all the fish genomes and expressed sequence tag databases avail...