Gilberto Carreira

Independent Researcher · Direcção Regional dos Assuntos do Mar

Any efforts to conduct a sustainable management of urban and natural landscapes benefit from an interdisciplinary approach and active collaboration between actors, thus increasing the feasibility and effectiveness of the proposed actions. With the emergent transition of urban lighting to white LED technology, such shifts can bring a variety of nega...

The project MISTIC SEAS I selected common species and Management Units (MUs) in European Macaronesia islands (Azores, Madeira and the Canary Islands) and defined thresholds and environmental targets to help determine the Good Environmental Status (GES) of this MUs following the requirements of the Marine Strategy Framework Directive (MSFD). MISTIC...

This document, the MRR, includes the description of the criteria and species assessed, along with compilation of the results obtained during the implementation of the pilot monitoring programmes under the MSFD for marine birds, mammals and turtles in the three Macaronesian archipelagos (Azores, Madeira and Canary Islands) but also from other additi...

Patella candei d'Orbigny is an exploited limpet endemic to the archipelagos of the Azores, Madeira, Selvagens and Canaries (Macaronesia). Marked declines reported for the species likely reflect overexploitation and inadequacy of current management measures with biodiversity further threatened by illegal harvesting and an-thropogenic movement of lim...

Combined analysis of genetic and morphological variation can provide synergistic insights into eco-evolutionary forces shaping biodiversity, as well as tools for conservation and management. Macaronesian limpets are undergoing severe declines due to overexploitation which calls for an evaluation of the evolutionary significance and taxonomic status...

Artificial lights at night cause high mortality of seabirds, one of the most endangered groups of birds globally. Fledglings of burrow-nesting seabirds, and to a lesser extent adults, are grounded by lights when they fly at night. We review the current state of knowledge of light attraction, identify information gaps and propose measures to address...

The Azorean barnacle, Megabalanus azoricus (Pilsbry, 1916), is a Macaronesian endemic whose obscure taxonomy and the unknown relationships among forms inhabiting isolated Northern Atlantic oceanic islands is investigated by means of molecular analysis herein. Mitochondrial data from the 16S rRNA and COX1 genes support its current species status, tr...

An egg mass of Loligo forbesi was observed in the field for the first time while conducting a remotely operated vehicle dive at a depth of 370 m, off the São Jorge Island (Azores, north-east Atlantic). This observation allowed the confirmation of two hypotheses previously suggested for the reproduction of this species: (i) that in the Azores this s...

Trials with a new kind of fishing trap, the Japanese baited pot (JBP), were performed in the Atlantic for the first time, covering three target depths, 25 m, 75 m and 125 m in the Azores. The JBPs were proved to be efficient and highly specific to octopus. An average catch per unit of effort (CPUE) of 0.22 octopuses/trap/hour*100 was attained, and...

Despite being an exploited and economically important species, little is known about the reproductive behaviour of Loligo forbesi. During a captive trial performed in a closed seawater system in the Azores, three spawning events were directly witnessed. An account of their main behavioural aspects is given. A number of behavioural components are de...

Myocardial densitometry of the ultrasonic gray scale applied to two-dimensional echocardiography is a recently available method of tissue characterization that is dependent on both the technical imaging and observer conditions. The purpose of our experimental prospective study was to analyze the sample factors responsible for the variability of thi...