34 documents found, page 1 of 4
Common dolphin's shipping noise risk assessment on the Portuguese coast
Spadoni, Giulia; Duarte, Ricardo; Soares, Cristiano; Fernandez, Marc; Jesus, SergioOcean noise generated by human activities at sea has been increasing over the decades, affecting marine eco systems. Ship traffic flow between the Mediterranean or South Atlantic and northern Europe makes the coast of Portugal one of the most intense shipping highways on a global scale. Among the cetaceans of the coast of Portugal, the common dolphin (Delphinus delphis) was selected as a target species. Based o...
Satellite Tracking and Photographic-Identification as Connectivity-Based Tools ...
Weyn, Mieke; Marrero-Pérez, Jacobo; Sánchez Mora, Anna; Pimentel González, Atenary; Ferreira, Rita; Sambolino, Annalisa; Dinis, AnaIdentifying biogeographical patterns and important biological (blue) corridors can greatly contribute to conservation planning. Yet, this is particularly challenging when addressing pelagic species. In this study, satellite telemetry and photographic-identification data of short-finned pilot whales (Globicephala macrorhynchus) were used to identify preferred areas and pathways in the Macaronesia biogeographical...
Acoustic fish community in the Madeira Archipelago (North Atlantic Ocean): Char...
Muñoz-Duque, Sebastian; Fonseca, Paulo; Quintella, Bernardo; Monteiro, João Gama; Fernandez, Marc; Silva, Rodrigo; Vieira, Manuel; Amorim, M. Clara P.Marine ecosystems are increasingly subjected to anthropogenic pressures, which demands urgent monitoring plans. Understanding soundscapes can offer unique insights into the ocean status providing important information and revealing different sounds and their sources. Fishes can be prominent soundscape contributors, making passive acoustic monitoring (PAM) a potential tool to detect the presence of vocal fish sp...
Cross-referencing unidentified fish sound data sets to unravel sound sources: a...
Vieira, Manuel; Ríos, Noelia; Muñoz-Duque, Sebastian; Pereira, Jodanne; Carriço, Rita; Fernandez, Marc; Monteiro, João G.; Pais, Miguel PessanhaThere is growing evidence that studying aquatic acoustic communities can provide ecologically relevant information. Understanding these communities may offer unique insights into species behaviour and ecology, while consolidating passive acoustic monitoring as a tool for mapping the presence of target species or estimating changes in aquatic biodiversity. Fish can be significant soundscape contributors, but mos...
First assessment of passive acoustics as a tool to monitor the endangered Medit...
Muñoz‐Duque, Sebastian; Vieira, Manuel; Fonseca, Paulo; Quintella, Bernardo; Charrier, Isabelle; Monteiro, João Gama; Fernandez, Marc; Silva, Rodrigo1. The rarest seal and the world's most endangered pinniped species, the Mediterranean monk seal (Monachus monachus), has a small and isolated population in the Madeira Archipelago (Portugal). This species tends to be extremely wary of humans and, therefore, very difficult to approach and study. 2. Passive acoustic monitoring (PAM) is a non-invasive, cost-effective tool that can be a valuable complement for the...
Isotope-based inferences of the trophic niche of short-finned pilot whales in t...
Escánez, Alejandro; Marrero-Pérez, Jacobo; Dromby, Morgane; Pimentel-González, Atenary; Dias, Ester; García-Pastor, Ester M.; Weyn, MiekeKnowledge of predator-prey interactions is key in ecological studies and understanding ecosystem function, yet this is still poorly explored in the deep-sea environment. Carbon (delta C-13: C-13/C-12) and nitrogen (delta N-15: N-15/N-14) stable isotope ratios of a deep-diving species, the short-finned pilot whale (Globicephala macrorhynchus), were used to explore knowledge gaps on its ecological niche and forag...
MONICET: The Azores whale watching contribution to cetacean monitoring
González García, Laura; Fernandez, Marc; Manuel N. Azevedo, JoséABSTRACT: The Azores islands have been historically linked to cetaceans, becoming an example of a successful transition from whaling to whale watching. Twenty-eight cetacean species have been sighted in these waters, making the archipelago one of the most recognised whale and dolphin watching destinations worldwide. The business is well-established in the region, operates in four of the nine islands year-round ...
Citizen science and expert judgement: A cost-efficient combination to monitor a...
Parretti, Paola; Monteiro, João Gama; Gizzi, Francesca; Martinez-Escauriaza, Roi; Alves, Filipe; Chebaane, Sahar; Almeida, Silvia; Pais, Miguel PessanhaMapping the distribution and evaluating the impacts of marine non-indigenous species (NIS) are two fundamental tasks for management purposes, yet they are often time consuming and expensive. This case study focuses on the NIS gilthead seabream Sparus aurata escaped from offshore farms in Madeira Island in order to test an innovative, cost-efficient combined approach to risk assessment and georeferenced dispersa...
A novel expert-driven methodology to develop thermal response curves and projec...
Sousa, Andreia G.; Fernandez, Marc; Alves, Filipe M. A.; Arranz, Patricia; Dinis, Ana; González García, Laura; Morales, Misael; Lettrich, Matthew D.Over the last decades, global warming has contributed to changes in marine species composition, abundance and distribution, in response to changes in oceanographic conditions such as temperature, acidification, and deoxygenation. Experimentally derived thermal limits, which are known to be related to observed latitudinal ranges, have been used to assess variations in species distribution patterns. However, such...
A novel expert-driven methodology to develop thermal response curves and projec...
Sousa, Andreia; Fernandez, Marc; Alves, Filipe; Arranz, Patricia; Dinis, Ana; González García, Laura; Morales, Misael; Lettrich, MatthewOver the last decades, global warming has contributed to changes in marine species composition, abundance and distribution, in response to changes in oceanographic conditions such as temperature, acidification, and deoxygenation. Experimentally derived thermal limits, which are known to be related to observed latitudinal ranges, have been used to assess variations in species distribution patterns. However, such...