Rui Prieto

Rui Prieto
University of the Azores | UAc · OKEANOS Institute

PhD

About

129
Publications
40,538
Reads
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1,765
Citations
Introduction
Education: PhD 2014. Sei whale ecology and management in the North Atlantic Marine Biology BsC 1997 by the University of Algarve. Research and academic interests: Ecology of sperm, pilot and baleen whales; Telemetry applied to the study of animal populations; Cetacean social ecology; Interactions between marine mammals and human activities; Ecological spatial analysis.
Additional affiliations
January 2002 - December 2009
Education
January 2008 - December 2014
University of the Azores
Field of study
  • Marine Ecology
September 1992 - March 1997
Universidade do Algarve
Field of study
  • Marine Biology

Publications

Publications (129)
Article
Full-text available
Global warming is affecting the population dynamics and trophic interactions across a wide range of ecosystems and habitats. Translating these real-time effects into their long-term consequences remains a challenge. The rapid and extreme warming period that occurred after the Last Glacial Maximum (LGM) during the Pleistocene–Holocene transition (7–...
Article
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Background Prioritizing groupings of organisms or ‘units’ below the species level is a critical issue for conservation purposes. Several techniques encompassing different time-frames, from genetics to ecological markers, have been considered to evaluate existing biological diversity at a sufficient temporal resolution to define conservation units....
Article
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Large baleen and toothed whales play crucial ecological roles in oceans; nonetheless, very little is known about their intestinal microbiomes. Based on striking differences in natural history and thus in feeding behaviours, it can be expected that intestinal microbiomes of large baleen whales and toothed whales are different. To test this hypothesi...
Article
• Cetaceans are considered ecosystem engineers and useful bioindicators of the health of marine environments. The Eastern North Atlantic is an area of great geographical and oceanographic complexity that favours ecosystem richness and, consequently, cetacean occurrence. Although this occurrence has led to relevant scientific research on this taxon,...
Presentation
Full-text available
Community ecology based on biological and/or functional traits rather than taxonomic criteria informs general ecological patterns through the study of ecological niches, function, and resistance and resilience to perturbations. There are no repositories for diverse species traits from non-chemosynthetic deep-sea ridges and associated seamounts, whe...
Presentation
Full-text available
Community ecology based on biological and/or functional traits rather than taxonomic criteria informs general ecological patterns through the study of ecological niches, function, and resistance and resilience to perturbations. There are no repositories for species traits from non-chemosynthetic deep-sea ridges and associated seamounts, where the i...
Article
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The Arctic is entering a new ecological state, with alarming consequences for humanity. Animal-borne sensors offer a window into these changes. Although substantial animal tracking data from the Arctic and subarctic exist, most are difficult to discover and access. Here, we present the new Arctic Animal Movement Archive (AAMA), a growing collection...
Article
Full-text available
The Arctic is entering a new ecological state, with alarming consequences for humanity. Animal-borne sensors offer a window into these changes. Although substantial animal tracking data from the Arctic and subarctic exist, most are difficult to discover and access. Here, we present the new Arctic Animal Movement Archive (AAMA), a growing collection...
Article
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Aim Understanding the environmental drivers of movement and habitat use of highly migratory marine species is crucial to implement appropriate management and conservation measures. However, this requires quantitative information on their spatial and temporal presence, which is limited in the high seas. Here, we aimed to gain insights of the essenti...
Article
Highly migratory marine species pose a challenge for the identification of management units due to the absence of clear oceanographic barriers. The population structure of North Atlantic fin whales has been investigated since the start of whaling operations but is still the subject of an ongoing scientific debate. Here we measured stable isotopes o...
Article
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Several seamounts have been identified as hotspots of marine life in the Azores, acting as feeding stations for top predators, including cetaceans. Passive acoustic monitoring is an efficient tool to study temporal variations in the occurrence and behaviour of vocalizing cetacean species. We deployed bottom-moored Ecological Acoustic Recorders (EAR...
Article
Close range photogrammetry (CRP) is a well‐established technique to retrieve quantitative information from objects using photography. CRP is often used in morphology studies when the direct handling of individuals is unpractical or unethical, or to reduce processing costs and time. Although multiple software to extract quantitative information from...
Article
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The increasing public perception that marine megafauna is under threat is an outstanding incentive to investigate their essential habitats (EMH), their responses to human and climate change pressures, and to better understand their largely unexplained behaviors and physiology. Yet, this poses serious challenges such as the elusiveness and remotenes...
Presentation
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The GNSS Science Support Centre (GSSC), led by ESA’s Galileo Science Office at ESAC (Spain), aims to consolidate a world-wide GNSS Preservation and Exploitation platform through the provision of products and services to foster research in Europe, and notably the use of Galileo by the scientific community. Announced at the Galileo Colloquium 2017 i...
Article
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Knowing the migratory movements and behaviour of baleen whales is fundamental to understanding their ecology. We compared δ 15 N and δ 13 C values in the skin of blue (Balaenoptera musculus), fin (Balaenoptera physalus) and sei (Balaenoptera borealis) whales sighted in the Azores in spring with the values of potential prey from different regions wi...
Article
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The advent of massive parallel sequencing technologies has resulted in an increase of studies based upon complete mitochondrial genome DNA sequences that revisit the taxonomic status within and among species. Spatially distinct monophyly in such mitogenomic genealogies, i.e., the sharing of a recent common ancestor among con-specific samples collec...
Article
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Capture-mark-recapture methods have been extensively used to estimate abundance, demography, and life history parameters of populations of several taxa. However, the high mobility of many species means that dedicated surveys are logistically complicated and expensive. Use of opportunis-tic data may be an alternative, if modeling takes into account...
Article
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Aim The knowledge of a species biogeographical patterns greatly enhances our understanding of geographical ecology, which can improve identifying key conservation needs. Yet, this knowledge is still scarce for many marine top predators. Here, we aim to analyse movement patterns and spatial structuring of a large predator, the short‐finned pilot wha...
Preprint
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The demography of baleen whales and their prey during the past 30 thousand years was assessed to understand the effects of past rapid global warming on marine ecosystems. Mitochondrial and genome-wide DNA sequence variation in eight baleen whale and seven prey species revealed strong, ocean-wide demographic changes that were correlated with changes...
Preprint
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Highlights Mitochondrial monophyly is commonly employed to define evolutionary significant units. Monophyly may be caused by insufficient sampling or a recent common ancestor. Mitogenomic studies are generally based on few samples and prone to sampling issues. Expanded mitogenome sampling negates previous monophyly in fin whales. Abstract The adve...
Presentation
Full-text available
Biologging technology has provided scientists with unprecedented tools to investigate the ecology and behaviour of marine animals, but tag deployment and attachment methods have lagged behind. Electronic tagging of elasmobranchs still essentially involves implanting anchors or drilling the fins of restrained animals. On the other hand, most biologg...
Article
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Currently, three stocks of sei whales (Balaenoptera borealis) are defined in the North Atlantic; the Nova Scotian, Iceland-Denmark Strait and Eastern North Atlantic stocks, which are mainly based upon historical catch and sighting data. We analyzed mitochondrial control region DNA (mtDNA) sequences and genotypes from 7 to 11 microsatellite loci in...
Presentation
Full-text available
Ziphiids or beaked whales, are deep-diving, echolocation-user odontocetes. They are the second most species-rich modern cetacean family with a diverse fossil record, with around fifty skulls recovered from Portuguese and Spanish (Asturias and Galicia) coastal waters. The mid-Atlantic Portuguese Archipelago of Azores is well-renowned for its rich fa...
Presentation
Full-text available
Information on abundance and demography is essential to assess the status of populations, inform conservation and management measures and evaluate effectiveness of those measures. Application of capture-mark-recapture (CMR) methods to photo-identification data has been extensively used to estimate abundance and life history parameters of cetacean p...
Poster
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ABSTRACT: The International Whaling Commission currently recognizes 3 stocks of sei whales (Balaenoptera borealis) in the North Atlantic, mainly based upon historical catch and sighting data. In this study, we evaluated the validity of this division into stocks by analyzing 87 samples collected from 3 different sites in the North Atlantic; Iceland,...
Article
Full-text available
Biologging technology has provided scientists with unprecedented tools to investigate the ecology and behaviour of marine animals, but tag deployment and attachment methods have lagged behind. Electronic tagging of elasmobranchs still essentially involves implanting anchors or drilling the fins of restrained animals. Here, we present two new non-in...
Presentation
Biophysical coupling at seamounts may lead to the formation of pelagic foraging hotspots, which can attract predators like cetaceans. Spatial and temporal dynamics of prey has a strong effect on the foraging success and performance of predators. Dolphins change their distribution and foraging strategy in response to changes in micronekton prey abun...
Poster
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We present two alternative solutions for short term deployments of external tags and sensors on two species of elasmobranchs
Article
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Marine spatial planning and ecological research call for high-resolution species distribution data. However, those data are still not available for most marine large vertebrates. The dynamic nature of oceanographic processes and the wide-ranging behavior of many marine vertebrates create further difficulties, as distribution data must incorporate b...
Technical Report
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In July 2016, started “EcoDiveAz”, a 3 years project from IMAR-MARE & the University of the Azores, funded by the regional government through the Açores2020-FEDER program. This project was designed to contribute to the sustainable growth and management of blue sharks (Prionace glauca) and mobula rays (Mobula tarapacana) diving in the Azores. This f...
Presentation
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The Azores supported a sperm whaling industry for over one century and presently host a growing whale watching industry that mainly targets this species. Despite the lower productivity in relation to other coastal areas, the waters around the Azores are one important feeding ground for the species in the North Atlantic. Yet, very little is known ab...
Data
Marine spatial planning and ecological research call for high-resolution species distribution data. However, those data are still not available for most marine large vertebrates. The dynamic nature of oceanographic processes and the wide-ranging behavior of many marine vertebrates create further difficulties, as distribution data must incorporate b...
Article
Full-text available
A number of parasitic diseases have gained importance as neozoan opportunistic infections in the marine environment. Here, we report on the gastrointestinal endoparasite fauna of three baleen whale species and one toothed whale: blue (Balaenoptera musculus), fin (Balaenoptera physalus), and sei whales (Balaenoptera borealis) and sperm whales (Physe...
Article
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Baleen and sperm whales, belonging to the Order Cetartiodactyla, are the largest and heaviest existent mammals in the world, collectively known as large whales. Large whales have been subjected to a variety of conservation means, which could be better monitored and managed if physiological and pathophysiological information, such as pathogen infect...
Chapter
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A relação do Homem com os cetáceos poderá ter mais de 150 mil anos, como atestam registos fósseis. Deverá ter-se iniciado com o aproveitamento de carcaças de animais arrojadas na costa. As carcaças destes seres estranhos, vindos de um mundo aquático também misterioso, devem ter alimentado não só os corpos como também a imaginação dos nossos ancestr...
Article
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The stock structure of the sei whale Balaenoptera borealis in the North Atlantic is unknown, despite years of commercial hunting. New and up-to-date data on distribution and movements are essential for the creation of plausible hypotheses about the stock structure of this species. Between 2008 and 2009 satellite tracks of 8 sei whales were obtained...
Article
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Genetic studies have shown that there are small but significant differences between the short-beaked common dolphin populations in the Atlantic Ocean and those in the Mediterranean Sea. The short-beaked common dolphin is a highly vocal species with a wide sound production repertoire including whistles. Whistles are continuous, narrowband, frequency...
Article
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To improve our understanding of the complex genetic and ecological structure of bottlenose dolphin ( Tursiops truncatus ) populations, we examined the acoustic features of communication signals from two geographically contiguous areas: the Central–Eastern North Atlantic and the Mediterranean Sea. Variations in the whistles were evaluated for four l...
Article
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Malcolm Roy Clarke (1930–2013) was a British teuthologist who made an important contribution to marine science in the Azores archipelago (Portugal). Malcolm started doing research in the Azores from 1980s onward, settling for residency in 2000 after retirement (in 1987). He kept publishing on Azorean cephalopods collaborating in 20% of the peer rev...
Article
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Argos recently implemented a new algorithm to calculate locations of satellite-tracked animals that uses a Kalman filter (KF). The KF algorithm is reported to increase the number and accuracy of estimated positions over the traditional Least Squares (LS) algorithm, with potential advantages to the application of state-space methods to model animal...
Article
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Cetaceans living in offshore waters are under increasing pressure from anthropogenic activities. Yet, due to the lack of survey effort, relatively little is known about the demography or ecology of these populations. Spatial and temporal distribution of cetaceans in mid-Atlantic waters were investigated using a long term dataset collected from boat...
Article
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The need to balance energy reserves during migration is a critical factor for most long-distance migrants and an important determinant of migratory strategies in birds, insects and land mammals. Large baleen whales migrate annually between foraging and breeding sites, crossing vast ocean areas where food is seldom abundant. How whales respond to th...
Article
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There is a great lack of information on the ffects of boat operations on sperm whales (Physeter macrocephalus), which is the target species of the recent whale-watching industry in the Archipelago of the Azores. During the 1998 Azorean whale-watching season, between 4 June and 23 September, observa- tions were carried-out from land-based lookouts a...
Conference Paper
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We compared the spatial structure across the North Atlantic Ocean of the genetic variation in the mitochondrial and nuclear genome in minke, fin, blue and humpback whales. Across all four species we found a qualitatively similar spatial distribution of genetic diversity where the major break in genetic homogeneity follows the edge of the sea ice co...
Article
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Pham, C. K., Canha, A., Diogo, H., Pereira, J. G., Prieto, R., and Morato, T. 2013. Total marine fishery catch for the Azores (1950–2010). – ICES Journal of Marine Science, 70: 564–577. Official fishery statistics often fail to report what has been truly extracted from the marine environment. Therefore, in this study, we estimated illegal, unreport...