David Jacinto

David Jacinto
MARE - Centro de Ciências do Mar e do Ambiente · Laboratório de Ciências do Mar (CIEMAR) - Universidade de Évora

PhD

About

53
Publications
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461
Citations

Publications

Publications (53)
Article
Sea urchin gonads are an economically valuable seafood item, considered a delicacy in many parts of the world. However, its consumption can either pose a food safety threat, as they accumulate potentially toxic elements from contaminated environments or promote the depletion of natural stocks due to the high demand. Knowing their harvesting locatio...
Article
Full-text available
Understanding large-scale spatial and temporal patterns of marine populations is a central goal in ecology, which has received renewed attention under climate change. However, few studies explore the large-scale dynamics of populations using standardized protocols and during the same time frames. We studied the phenology and intensity of reproducti...
Article
Full-text available
The stalked barnacle Pollicipes pollicipes is an abundant species on the very exposed rocky shore habitats of the Spanish and Portuguese coasts, constituting also an important economical re-source, as a seafood item with high commercial value. Twenty-four elements were measured by untargeted Total Reflection X-ray Fluorescence spectroscopy (TXRF) i...
Article
Full-text available
In January 2020, a stakeholder workshop was organized as a knowledge sharing strategy among European stalked barnacle fisheries. Management of this fishery differs greatly among regions and ranges from less organized and governed at large scales (>100 km, coasts of SW Portugal and Brittany in France) to highly participatory systems which are co-man...
Article
Full-text available
Understanding recruitment patterns of an exploited species is essential to predict changes in population dynamics and to improve its management and conservation. Temporal variability in recruitment of the edible stalked barnacle Pollicipes pollicipes was analyzed over a decade (consecutive annual recruitment seasons from 2007 to 2016) at a cape are...
Poster
Full-text available
The stalked barnacle *Pollicipes pollicipes* inhabits very exposed rocky shores from Brittany (France) to Dakar (Senegal) and it is highly prized and heavily exploited in Portugal and Spain. In Europe, several fisheries of this species can be identified with different features and governance/management approaches. None of the fisheries has independ...
Article
The engagement of the fishers and other stakeholders in the management of the resources is considered the key ingredient for a good fishery governance. The stalked barnacle Pollicipes pollicipes can be considered the most important economic resource on rocky shores of northern Spain and continental Portugal. This species is highly prized as food an...
Poster
Full-text available
The PERCEBES project aspires to answer questions regarding the effects of harvesting on the intertidal community and recovery potential of stalked barnacle populations after harvesting, for which a Human Exclusion Experiment has been deployed over 2 years in 4 regions: coast of Alentejo (Portugal), Atlantic Islands (Galicia, Spain), Western Asturia...
Poster
The stalked barnacle Pollicipes pollicipes (percebe) is a sessile marine invertebrate that inhabits extremely exposed intertidal and shallow subtidal rocky shores along the Eastern Atlantic coast from Brittany to Senegal. This species is a very important shellfish resource and intensively harvested (mainly in the Iberian Peninsula) by recreational...
Poster
Understanding temporal variation in recruitment and the underlying processes responsible for the observed patterns can be a valuable tool to predict major changes in population dynamics, especially in exploited species. The edible barnacle Pollicipes pollicipes is a sessile marine invertebrate with a planktonic larval phase and occurs in highly exp...
Poster
Full-text available
Managing marine resources requires information on their distribution and abundance at relevant scales, often challenging to obtain when sampling large areas and extreme habitats such as wave-swept rocky shores. The stalked barnacle Pollicipes pollicipes is an important resource on the northeast Atlantic coast forming dense aggregations in wave-expo...
Poster
Full-text available
The stalked barnacle Pollicipes pollicipes is an important ecological and economical resource that inhabits extremely exposed intertidal rocky shore habitats along the NE Atlantic coast. The fishing pressure upon this species is intense and its commercial value can be very high in European markets. Harvesting stalked barnacles is a dangerous activi...
Article
The stalked barnacle Pollicipes pollicipes can be considered the most important ecological resource on rocky shores of North Spain and Continental Portugal [1], [2] , and has a high commercial value [3]. P. pollicipes inhabits very exposed rocky shores from Brittany (France) to Dakar (Senegal)[4]. There is an overall perception, namely by the fishe...
Poster
Full-text available
In this study, the relative importance of the presence of conspecifics, predation and wave action on recruitment of Pollicipes pollicipes was studied by doing an intertidal field experiment. Were used artificial substrata and adults of this species to study recruitment and monthly growth in different conditions.
Presentation
In the past, recruitment of Pollicipes pollicipes has been studied using adult individuals as a recruitment substratum, and through two types of indexes: number of recruits (cyprids and juveniles) per adult (NR) and percentage of adults with at least one recruit (PR). Recently, a new artificial substratum (“barticle”) has been developed, making pos...
Article
Full-text available
Partitioning the effects of herbivory on different life stages of primary producers is key to understanding the population-wide consequences of herbivory. We assessed the performance of microscopic (MiS <1 mm) juveniles, macroscopic (MaS) juveniles and adult kelp (Laminaria ochroleuca) under contrasting herbivory regimes through a herbivore exclusi...
Article
may also induce compensatory growth (measured as linear growth) in adult kelp. In summary, we here demonstrate how herbivory affects all sporophyte life stages of the kelp L. ochroleuca. This is likely to have important implications for situations where historical patterns of herbivore presence and herbivory are changing, such as is increasingly th...
Article
Understanding and predicting patterns of distribution and abundance of marine resources is important for con- servation and management purposes in small-scale artisanal fisheries and industrial fisheries worldwide. The goose barnacle (Pollicipes pollicipes) is an important shellfish resource and its distribution is closely related to wave exposure...
Article
The stalked barnacle Pollicipes pollicipes is the most important intertidal economical resource in Portugal. The assessment of the state of the fishery, conservation and management of P. pollicipes in Portugal was made for the first time in three regions with different regulations regarding this fishery: two marine protected areas ("Reserva Natural...
Article
Full-text available
Assessing effects of herbivory across broad gradients of varying ocean climate conditions and over small spatial scales is crucial for understanding its influence on primary producers. Effects of herbivory on the distribution and abundance of kelp recruits were examined experimentally at two regions under contrasting ocean climate. Specifically, th...
Article
Full-text available
This study describes the use of calcein as a chemical tagging methodology to estimate growth rate variation of the stalked barnacle Pollicipes pollicipes, an ecologically important intertidal species and economic resource, in SW Portugal. Calcein tagging had a high success rate (94%) in marking both juvenile and adult barnacles for a period of 2.5...
Article
Full-text available
Kelp communities are in decline in many regions. Detecting and addressing population declines require knowledge of patterns of spatial and temporal variation in the distribution and abundance of kelps and their associated organisms. Wequantified kelp and associated macroalgal assemblages three times over a period of 2 years, at three regions along...
Poster
Full-text available
In this study, we have used calcein tagging methods (Jacinto et al 2015) to mark and estimate growth rate variation of juvenile barnacles that have settled onto natural and artificial substrata deployed on the rocky intertidal of a very exposed shore (Cape of Sines, Portugal) and then relocated and left to grow on their natural habitat and on artif...
Article
Kelp communities are in decline in many regions. Detecting and addressing population declines require knowledge of patterns of spatial and temporal variation in the distribution and abundance of kelps and their associated organisms. We quantified kelp and associated macroalgal assemblages three times over a period of 2 years, at three regions along...
Article
Assessing effects of herbivory across broad gradients of varying ocean climate conditions and over small spatial scales is crucial for understanding its influence on primary producers. Effects of herbivory on the distribution and abundance of kelp recruits were examined experimentally at two regions under contrasting ocean climate. Specifically, th...
Conference Paper
Full-text available
Kelps (large brown seaweeds) are conspicuous elements of the Portuguese coast, although kelp abundance is declining, especially at central and southern Portugal. While many studies point out increased seawater temperature as the main factor explaining kelp decline, little attention has been given to top-down (predatory) influences. Through in situ...
Article
We examined the hypothesis that the loss of canopy-forming macroalgae from rock pools would have stronger effects on associated algal assemblages along gradients of harsher climate conditions (i.e. higher sea and air temperatures and irradiation) occurring in continental Portugal and the Canary Islands. The study was carried out at ‘cool’ and ‘warm...
Conference Paper
Sea urchins play a key role structuring benthic communities of rocky shores through an intense herbivory. The most abundant sea urchin species on shallow rocky subtidal habitats of the SW coast of Portugal is Paracentrotus lividus (Echinodermata: Echinoidea). It is considered a key species in various locations throughout its geographical distributi...
Article
We examined the hypothesis that the loss of canopy-forming macroalgae from rock pools would have stronger effects on associated algal assemblages along gradients of harsher climate conditions (i.e. higher sea and air temperatures and irradiation) occurring in continental Portugal and the Canary Islands. The study was carried out at ‘cool’ and ‘warm...
Article
In coastal habitats, wave exposure influences several aspects of the life history of marine organisms. Here, we assess how hydrodynamic conditions can generate variation in density, size structure and microhabitat usage of Paracentrotus lividus and whether these effects are consistent between regions that are markedly different for oceanic climate,...
Article
The stalked barnacle Pollicipes pollicipes is a cirriped crustacean that lives on very exposed rocky shores. This barnacle is the most important economical resource on intertidal rocky shores of continental Portugal. It is highly prized as food and heavily exploited (professional and recreational fishery), but fishery data are scarce and do not est...
Article
Full-text available
The rock burrowing sea urchin Paracentrotus lividus is a common wave-swept organism that inhabits intertidal rock pools and shallow subtidal temperate shores. Here we present field data on P. lividus attachment force, burrow shape and test diameter measured in different rocky habitats (intertidal pools, low shore intertidal channels and shallow sub...
Article
Full-text available
The Portuguese coast has overlapping distributions of species of both boreal and Lusitanian origins; a large number of cold- and warm-water species have their southern or northern distributional range edges here. A latitudinal gradient in ocean climate, particularly sea surface temperature (SST) and primary production, has been described along this...
Article
The Portuguese coast has overlapping distributions of species of both boreal and Lusitanian origins; a large number of cold- and warm-water species have their southern or northern distributional range edges here. A latitudinal gradient in ocean climate, particularly sea surface temperature (SST) and primary production, has been described along this...
Article
Full-text available
The stalked barnacle Pollicipes pollicipes (Gmelin, 1790) is an important shellfish resource in Portugal. Due to the social-economic importance of barnacle harvesting, a management plan aimed at achieving a controlled and sustainable activity (including temporal and spatial closures, rotational harvesting, a limited number of harvesting licenses, b...
Poster
Full-text available
The Port of Sines is an open deep-water seaport situated immediately south of the Cape of Sines, a conspicuous headland in SW continental Portugal. In general, there is less taxa richness in intertidal rocky structures inside the port when compared with natural adjacent rocky shores. Common invertebrates like mussels, stalked barnacles and limpets...
Article
Full-text available
Jacinto, D., Cruz, T., Silva, T., and Castro, J. J. 2010. Stalked barnacle (Pollicipes pollicipes) harvesting in the Berlengas Nature Reserve, Portugal: temporal variation and validation of logbook data. – ICES Journal of Marine Science, 67: 19–25. Stalked barnacle (Pollicipes pollicipes) exploitation at the Berlengas Nature Reserve, Portugal, by p...
Article
Full-text available
Patterns and processes of tidal settlement (within 1 tidal cycle) of Chthamalus spp. in SW Portugal were investigated during the summer of 2003. Settlement patterns in relation to differ- ent periods of the day (night and day) and semi-lunar tidal cycles (spring and neap tides) were assessed using artificial plates deployed in intertidal habitats d...
Poster
Full-text available
Patellid limpets have a life history characterized by planktonic dispersal of larvae and a sedentary adult stage. Successful larval settlement and the emergence of limpet recruits on the shore depends on the conditions of early shore life. Immediately postsettlement phases are non-detectable by naked-eye and the observation of Patellid settlers in...
Article
Sea breezes often have significant impacts on nearshore physical and biological processes. We document the effects of a diurnal sea breeze on the nearshore thermal structure and circulation of northern Monterey Bay, California, using an array of moorings during the summer upwelling season in 2006. Moorings were equipped with thermistors and Acousti...
Presentation
Full-text available
O Laboratório de Ciências do Mar (CIEMAR), em funcionamento desde 1990 no Pólo de Sines da Universidade de Évora, desenvolve actividades de investigação científica nas seguintes áreas: ecologia costeira, biologia e conservação de recursos vivos marinhos, e poluição marinha. A maior parte destas actividades tem sido realizada na costa alentejana, no...

Projects

Projects (3)
Archived project
Viabilidade biológica e económica da aquacultura de percebe (Pollicipes pollicipes) em Portugal
Project
Project PERCEBES builds on the sheer diversity of management scenarios of the European Stalked Barnacle fishery, from open access through marine protected areas to Territorial Users Rights for Fishing, a kind of fine-scale, adaptive, spatial co-management system. PERCEBES will use that variety of management scenarios to develop a set of tools to forecast the implications of spatial management options on productivity, biodiversity and connectivity of barnacle stands, and to extract information to guide marine spatial planning in other contexts in the EU.