
Carlos FariasInstituto Español de Oceanografia | IEO · Centro Oceanográfico de Cádiz
Carlos Farias
Master of Science
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40
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Introduction
Additional affiliations
August 2004 - February 2016
Publications
Publications (40)
La monografía de los volcanes de fango del golfo de Cádiz se enmarca en una serie de 10 publicaciones en las que se detallan los resultados de la investigación de las áreas de estudio del proyecto LIFE+ INDEMARES.
An exceptional species richness for Mollusca was found on Avempace bank (349-365 m), Djibouti group, Alboran Sea, where the most abundant species was the crinoid Leptometra phalangium. A sample of sediment sieved on a 0.5-mm mesh yielded 156 species of molluscs (83 live-taken, 1772 specimens) with a high Shannon-Wiener diversity index (H'((log2))=3...
Protogrammus alboranensis n. sp. is described on the basis of four specimens from the Alboran Sea, western Mediterranean Sea. It is characterized within the genus Protogrammus by a total of nine unbranched rays on the second dorsal fin, eight unbranched rays on the anal fin, a very small preopercular spine with an upcurved main tip and one point on...
Mud volcanoes are singular seafloor structures classified as ‘sensitive habitats’. Here we report on the sponge fauna from a field of eight mud volcanoes located in the Spanish margin of the northern Gulf of Cadiz (North-eastern Atlantic), at depths ranging from 380 to 1146 m. Thirty-eight beam-trawl samplings were conducted (covering over 61,000 m...
The Atlantic tarpon Megalops atlanticus Valenciennes, 1847 is a very large, highly migratory fish that frequents coastal and inshore waters. Its distribution ranges the western Atlantic, from Nova Scotia to Argentina, the eastern Pacific, near the opening of the Panama Canal, and the eastern Atlantic, mainly along the west coast of Africa, from Mau...
The invasive seaweed Rugulopteryx okamurae has recently arrived in Europe from the western Pacific. Its explosive spread on coastal areas of the Gulf of Cádiz (GoC), Strait of Gibraltar and Alboran Sea is spoiling native coastal ecosystems and inflicting heavy losses on ecosystem services. We discovered for the first time large amounts (up to 17 g...
Multi-species bottom trawl fisheries are one of the human activities with a great impact on the benthic habitats and their associated biota. This study provides estimates of the bottom trawling activity (effort), catches and landings of the main commercial species as well as an estimation of the total revenue (TR) generated inside a mud volcano fie...
Evaluating the survival of discarded species is gaining momentum after the new European Common Fisheries Policy (Article 15 of the European Regulation No. 1380/2013). This regulation introduced a discard ban, with an exemption for those species with demonstrated high survival rates after their capture and release. Candidate species should be evalua...
This study combined morphological and molecular approaches to the species assignment of several rare or poorly known deep-water fishes caught between 549 and 1371 m depth during a Spanish bottom trawl survey in the Porcupine Bank, west of Ireland. The following fish species were identified: Nessorhamphus ingolfianus (Schmidt, 1912), Borostomias ant...
Seafood is an essential source of protein globally. As its demand continues to rise, balancing food security and the health of marine ecosystems has become a pressing challenge. Ecosystem-based fisheries management (EBFM) has been adopted by the European Union (EU) Common Fisheries Policy (CFP) to meet this challenge by accounting for the multiple...
The Blackspot Seabream (Pagellus bogaraveo) is one of the most important commercially exploited fish species for the Spanish and Moroccan fleets which operate in the Strait of Gibraltar. In recent years, the landings of Blackspot Seabream in the main ports have decreased significantly with respect to previous periods of maximum catches, which makes...
Highlights
Gazul MV presents a high geomorphological variability and diversity of bottom types.
Six main epibenthic assemblages have been identified conforming habitats.
Hard bottoms of the MV edifice contain the most biodiverse assemblages.
Cold-water coral communities are dominated by Madrepora oculata.
Gazul MV harbors different vulnerable...
The Mediterranean is a semi-enclosed sea, with a narrow natural connection —the Strait of Gibraltar— through its western basin to the North Atlantic. Many studies have investigated how the inflow of North Atlantic Surface water into the Mediterranean shapes the faunal composition and abundance of the shallow-water benthic communities of the Western...
The Iberian margin in the Gulf of Cádiz hosts a fluid venting area embedded into a contourite depositional drift and is a natural laboratory to study how multiple interacting processes shape the seafloor. A high-resolution morpho-sedimentary analysis, based on geophysical data, sediment samples and submarine imagery, has been carried out; the onset...
The Gulf of Cádiz represents an area of extensive seepage of the south-western Iberian Peninsula that is located between two continents and basins, where a high geomorphologic, sedimentary and environmental complexity occurs. In the present study, epibenthic communities were investigated in a mud volcano field containing four mud volcanoes (Gazul,...
Bottom trawling activity, commercial species and benthic and demersal assemblages were studied integrating Vessel Monitoring System data (VMS), fishing logbook data and otter trawl samples in a mud volcano (MV) field of the Spanish margin of the Gulf of Cádiz (GoC) in 2011. High trawling activity was detected around Anastasya MV and between the Cád...
The Gulf of Cádiz is influenced by the collision of the Alborán Domain with the North African and South Iberian margins, which ultimately promotes hydrocarbon-rich fluid venting. Regarding oceanography, the effects of the Eastern North Atlantic Central Water, the Mediterranean Outflow Water and their interaction, strongly influence seabed topograph...
In response to a request from the Spanish Ministry of Farming, Fishing, Food, and Environment (Spanish: Agricultura, Pesca, Alimentación y Medio Ambiente) in 2015, a fish expert group was formed to provide a reference list of marine fish species according to five regions (marine demarcations) established by Spanish Law 41/2010 on the protection of...
The holothurian Parastichopus tremulus, a species only know from the north-eastern Atlantic, is reported for the first time from the Mediterranean Sea. Five individuals of the species were collected in the vicinity of the Seco de los Olivos sea mount in May 2017 from a bottom trawl sample carried out during the MEDITS trawl survey. Scanning Electro...
The Gulf of Cádiz margin is characterized by geological processes that control seabed bathymetry and promote hydrocarbon-rich fluid venting in areas where the Eastern North Atlantic Central Water and the Mediterranean Outflow Water influence the substrate types. Geological and oceanographic processes determine the distribution of a wide variety of...
The seabed characteristics, the oceanographic circulation and the geomorphology
heterogeneity of the Gulf of Cádiz (mud volcanoes, diapiric ridges, channels, etc.) promote a wide variety of biological communities.
This study was carried out from a series of samples obtained from the diapiric mud volcano system of the Guadalquivir River (Gulf of Cádiz) during the ARSA 0307 campaign. Five stations were sampled over depths ranging between 490 and 717 m. The main objective of this study is to provide a preliminary description of the infaunal communities living i...
Advances in remotely-sensed techniques have revolutionized mapping methods and our understanding of the seabed environment. In particular, multibeam backscatter data nowadays allows developing quantitative studies on the composition of the seafloor, which represents an important baseline for habitat mapping. Usually, the acoustic response is consid...
Molluscan assemblages from shelf and slope soft bottoms of the Alboran Sea have been sampled with a beam trawl during 2014 and 2015 MEDITS expeditions. A total of 134 spp. of molluscs (shell size > 3 mm) were identified, being gastropods the most diverse and dominant group. Four main depth related assemblages were detected in multivariate analyses...
The Gulf of Cadiz is located in the boundary of two lithospheric plates, this tectonic activity promote fluid rich hydrocarbon emissions from subsurface reservoirs and the formation of several mud volcanoes. The seabed and sedimentological heterogeneity, the complex oceanographic circulation, and the low fishing activity in certain areas may promot...
Beam-trawl samples were collected during the MEDITS survey in 2014. These samples covered the continental shelf and slope bottoms of the north Alboran Sea, including the Alboran Island, between 40 to776 m depth. The decapod crustaceans were identified to species level and quantified (abundance and biomass). Species richness (S), Shannon-Wiener dive...
Cold seeps and mud volcanoes represent heterogeneous seafloor structures that promote a wide variety of geological features, habitat types and associated biota. In Spanish waters of the Gulf of Cádiz, a total of 11 mud volcanoes have been found so far, containing more than 15 habitat types (according to EUNIS and LPRE) and around 850 species. Some...
The Gulf of Cádiz is an area with a high faunistic biodiversity due to the coexistence of species from different biogeografical regions (Lusitanian, Mediterranean, Mauritanian). The natural distribution of these species includes latitudinal (African and north Atlantic species) or longitudinal gradients (Mediterranean and anfiatlantic species). Info...
Living specimens of the amphi-Atlantic asteroid Hacelia superba have been collected in different areas of Gazul mud volcano in the Gulf of Cadiz, south-western Iberian Peninsula, at depths of 380–487 m. This starfish displayed low abundances (~1 ind. 2000 m−2) in beam trawl catches on the mud vulcano and adjacent soft bottoms. The absence of previo...
Nowadays many different marine animals are being tagged. This book summarizes recent tagging programs carried out by the Spanish Institute of Oceanography (IEO). Although the objectives of these various studies mainly depend on the species and each project in particular, the general aim is to better understand the biology and ecology of these anima...
The capture of a specimen of Polymixia nobilis, a rare species in the eastern Atlantic waters north of the Canary and Madeira Islands, is reported as the first record in the vicinity of the Strait of Gibraltar.