B Novoa results 14
· Newest (Page 1/1, per page 25)
Author: B Novoa ×Clear All Filters
Search Results
The structure and organisation of an Amazonian bird community remains little changed after nearly four decades in Manu National ParkNARA Subscribed
Documenting patterns of spatiotemporal change in hyper‐diverse communities remains a challenge for tropical ecology yet is increasingly urgent as some long‐term studies have shown major declines in bird communities in undisturbed sites. In 1982, Terborgh et al. quantified the structure and organisation of the bird community in a 97‐ha. plot in southeastern Peru. We revisited the same plot in 2018 using the same methodologies a...
Invasion syndromes: a systematic approach for predicting biological invasions and facilitating effective managementNARA Subscribed
Our ability to predict invasions has been hindered by the seemingly idiosyncratic context-dependency of individual invasions. However, we argue that robust and useful generalisations in invasion science can be made by considering “invasion syndromes” which we define as “a combination of pathways, alien species traits, and characteristics of the recipient ecosystem which collectively result in predictable dynamics and impacts,...
Marteilia refringens is a protozoan parasite causing a disease notifiable to the Office International des Epizooties (OIE) and its distribution has implications for the transfer of live animals. The internal transcribed spacer‐1 (ITS‐1) from Marteilia clones contains polymorphism. Digestion with Hha I reveals two different restriction profiles, previously referred as ‘O’ ( Marteilia from oyster or Marteilia refringens ) and ‘M...
Non‐specific immune response of turbot, Scophthalmus maximus (L.), experimentally infected with a pathogenic Vibrio pelagiusNARA Subscribed
The effect of a pathogenic Vibrio pelagius, isolated during a mass mortality of turbot larvae, on the non‐specific immune response of turbot, Scophthalmus maximus (L.), macrophages was studied both in vitro and in vivo . The in vitro treatment of head kidney (HK) macrophages with viable V. pelagius caused a significant inhibition of the chemiluminescence (CL) response in comparison with untreated macrophages, while incubation...
Isolation of a highly pathogenic Vibrio pelagius strain associated with mass mortalities of turbot, Scophthalmus maximus (L.), larvaeNARA Subscribed
A bacterial strain, characterized as Vibrio pelagius (Hq 222), was isolated from a turbot, Scophthalmus maximus (L.), larvae mass mortality in a commercial fish farm in Spain. Turbot larvae, post‐larvae (0.2 g) and juveniles (5 and 15 g) were experimentally infected. The bacterium appeared to be very virulent for larvae and post‐larvae, LD 50 being −1 for larvae 1 week post‐infection and 3.9 × 10 5 bacteria mL −1 in post‐larva...
The transmission of viral encephalopathy and retinopathy (VER) was investigated in juvenile sea bream, Sparus aurata L. Two different infection routes [intraperitoneal (i.p.) and intramuscular injection (i.m.)] were tested at two different temperatures (20 and 26 °C) using sea bream of mean weight 0.7, 2 and 4 g, as well as an immersion challenge performed at 26 °C with sea bream of 0.7 g. Successful transmission of the diseas...
In vivo and in vitro effect of oxytetracycline treatment on the immune response of turbot, Scophthalmus maximus (L.)NARA Subscribed
Oxytetracycline (OTC) is one of the most frequently used antibiotics in aquaculture, although negative side‐effects have been reported in some cases. The present study has determined the effect of the in vivo administration of OTC on several immune functions in turbot, Scophthalmus maximus (L.), such as kidney macrophage respiratory burst, phagocytosis and plasma bactericidal activity. Total plasma protein was also measured. T...
Previous1Next