16 documents found, page 1 of 2
First record of the great barracuda, Sphyraena barracuda (Perciformes, Sphyraen...
Barcelos, Luis M. D.; Barreiros, João B.; Barreiros, João P.One individual of Sphyraena barracuda was collected on August 5, 2023, in the northern coast of Terceira Island, Azores, Portugal, by spearfishing. In this note, we report this first record and discuss the occurrence, which represents the northernmost one in the north-east Atlantic.
Records of Isistius sp. (Elasmobranchii: Squaliformes: Dalatiidae), from the Az...
Barcelos, Luis M. D.; Barreiros, João B.; Barreiros, João P.The marine waters around the Azores archipelago have been studied for quite a long time. Deeper areas, however, were historically poorly accessible and only now previously unreported species are recorded regularly. Our monitoring efforts of the Azorean ichthyofauna have recently revealed two cases of indirect evidence of the presence of a cookiecutter shark (Isistius sp.). The evidence, documented photographica...
Context-driven communication during deep-sea foraging in a social toothed whale
Hessing, Sanne; Risser, Nolwenn Morgane; Pichot, Loanne; Oudejans, Machiel G; Guilpin, Marie; Barcelos, Luis M. D.; Curé, Charlotte; Visser, FleurSocial deep-diving odontocetes face the challenge of balancing near-surface proximity to oxygen and group members with foraging in the deep sea. Individuals rely on conspecifics for critical life functions, such as predator defence, but disperse during foraging to feed individually. To understand the role of social acoustic mediation during foraging in deep-diving toothed whales, we investigated the context of ...
Sea turtle (Reptilia, Testudines) diversity and occurrence in the Azores Archip...
Barcelos, Luis M. D.; Vandeperre, Frederic; Parra, Hugo; Barreiros, João P.BACKGROUND: Six species of marine turtles occur in the Azores Archipelago. The loggerhead, Caretta caretta (Linnaeus, 1758), is by far the most common species and is being constantly monitored and tagged by a joint project between the University of the Azores and the University of Florida since 1989. With the implementation of the tuna fishery observers (for dolphin safe seals), an increment of sea turtle repor...
Azores Sea turtles updated checklist
Barcelos, Luis M. D.; Barreiros, João B. V.; Barreiros, João P.Sea turtles are the best-known and more widespread marine reptiles. However, information on their distribution and the occurrence of most species, except for nesting beaches, remains scarce and sporadic, depending on sightings from fishing vessels, tourist activities and occurrences in coastal areas as well as fishing bycatch. Since the last updated species’ list for the Azores (Santos et al, 2010), no new spec...
Phocidae species in Azores archipelago
Barcelos, Luis M. D.; Barreiros, João P.List of Phocidae species recorded in Azores archipelago (Portugal).
Pinniped (Carnivora, Phocidae) occurrences in the Azores Archipelago (NE Atlantic)
Barcelos, Luis M. D.; Barreiros, João P.BACKGROUND: The last Pinniped species update was in 2010, as part of the list of the terrestrial and marine biota from the Azores. This list includes a chapter dedicated to marine mammals, based on previously published bibliography. NEW INFORMATION: No new species were added since that list was published. However, there were new occurrences since the last update.
Cetáceos…esses desconhecidos
Barcelos, Luis M. D.Cetáceos, do grego (ketos: monstro marinho) e do latim (cetos: grande animal marinho), designa um grupo de mamíferos marinhos, popularmente conhecidos como baleias e golfinhos. Animais carismáticos, sejam os pequenos e ágeis golfinhos ou as grandes e majestodas baleias, geraram fascínio, admiração e medo, mas também foram fonte de riqueza e meio de subsistência para diversos povos em todo o mundo. São na sua ma...
Occurrences of pinnipeds (Carnivora, Phocidae) in the Azores archipelago (Portu...
Barcelos, Luis M. D.; Barreiros, João P.An inventory of historical and actual occurrences of pinnipeds in the Azores archipelago. The data used come from Silva et al. (2009) and from RACA - Rede de Arrojamentos de Cetáceos dos Açores (RACA-DRAM-RAA).
Occurrences of Sea turtles in Azores Archipelago
Barcelos, Luis M. D.; Barreiros, João P.Sea turtles are the best-known and more widespread marine reptiles. However, information on their distribution and the occurrence of most species, except for nesting beaches, remains scarce and sporadic, depending on sightings from fishing vessels, tourist activities and occurrences in coastal areas as well as fishing bycatch. Since the last updated species’ list for the Azores (Santos et al, 2010), no new spec...