Deep structure of an open sea eddy in the Algerian Basin

Ruiz, Simón; Font, Jordi; Emelianov, Mikhail; Isern‐Fontanet, Jordi; Millot, Claude; Salas, José D.; Taupier‐Letage, Isabelle

doi:10.1016/s0924-7963(02)00058-1

Cited by 48 publications

(59 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In general, in the western Mediterranean, especially in the Alboran basin, the surface circulation patterns are really complex-depending mostly on the Atlantic water input and involving the formation of several gyres (e.g. Ruiz et al 2002;García-Lafuente et al 2006). On the other hand, surface currents in the Azores Islands are influenced by the Azorean Currents, the easternmost arm of the Gulf Stream.…”

Section: Discussionmentioning

confidence: 99%

Long-distance dispersal, low connectivity and molecular evidence of a new cryptic species in the obligate rafter Caprella andreae Mayer, 1890 (Crustacea: Amphipoda: Caprellidae)

et al. 2012

View full text Add to dashboard Cite

The amphipod Caprella andreae Mayer, 1890 was recorded for the first time in Southern Iberian Peninsula (36°44 0 15 00 N, 3°59 0 38 00 W). This species is the only obligate rafter of the suborder Caprellidea and has been reported to attach not only to floating objects such as ropes or driftwoods but also to turtle carapaces. Mitochondrial and nuclear markers were used to examine dispersal capabilities and population genetic structure of C. andreae across seven localities in the Mediterranean and Atlantic Ocean collected from floating substrata with different dispersal patterns. The strong population differentiation with no haplotypes shared between populations suggests that C. andreae is quite faithful to the substratum on which it settles. In addition, the proportionally higher genetic diversity displayed in populations living on turtles as well as the presence of highly differentiated haplotypes in the same turtle population may be indicative that these populations survive longer, which could lead C. andreae to prefer turtles instead of floating objects to settle and disperse. Therefore, rafting on floating objects may be sporadic, and ocean currents would not be the most important factor shaping patterns of connectivity and population structure in this species. Furthermore, molecular phylogenetic analyses revealed the existence of a cryptic species whose estimates of genetic divergence are higher than those estimated between C. andreae and other congeneric species (e.g. Caprella dilatata and Caprella penantis). Discovery of cryptic species among widely distributed small marine invertebrates is quite common and, in this case, prompts for a more detailed phylogenetic analysis and taxonomic revision of genus Caprella. On the other hand, this study also means the first record of the gammarids Jassa cadetta and Elasmopus brasiliensis and the caprellid Caprella hirsuta on drifting objects.

show abstract

Section: Discussionmentioning

confidence: 99%

Long-distance dispersal, low connectivity and molecular evidence of a new cryptic species in the obligate rafter Caprella andreae Mayer, 1890 (Crustacea: Amphipoda: Caprellidae)

et al. 2012

View full text Add to dashboard Cite

show abstract

“…29 They play a major role in the configuration of the general circulation and the distribution of the water masses and biogeochemical parameters in the Algerian Basin. 28 The surface current at this stage is 100-200m thick and its maximum speed is several tens of cm/s. 11 At the entrance of the Strait of Sicily, the Algerian current splits into two branches: a northern flow branch enters the Tyrrhenian Sea and a southern flow branch enters the Strait of The circulation pattern in the Mediterranean Sea: issues for modeller consideration In the Ligurian Sea, the northern current is characterised by a maximum speed of tens of cm/s in its core, a width of few tens of kilometres and a thickness of a few hundred metres.…”

Section: The Surface Watermentioning

confidence: 94%

“…28 These eddies can last for many months or even years. 29 They play a major role in the configuration of the general circulation and the distribution of the water masses and biogeochemical parameters in the Algerian Basin.…”

Section: The Surface Watermentioning

confidence: 99%

The circulation pattern in the Mediterranean Sea: issues for modeller consideration

El-Geziry

Bryden

2010

Journal of Operational Oceanography

View full text Add to dashboard Cite

“…Through an intensive survey of thermal infrared images, a large eddy was detected south of the Balearic Islands and a ship cruise was carried out to sample its structure. For the first time, it was possible to characterize one of these mesoscale structures in detail: 15 standard WOCE-SVP drifters with a drogue centred at 10 m and deployed across its centre revealed a deep structure with surface velocities approximately in geostrophic balance and close to solid body rotation (Ruiz et al 2002). The density distribution indicated a deepening of the isopycnals near the eddy's centre, at levels as deep as 1500 m, where an associated anticyclonic circulation of about 5 to 10 cm/s was detected.…”

Section: Mesoscale Dynamics and Western Mediterranean Circulationmentioning

confidence: 99%

Thirty years of research and development of Lagrangian buoys at the Institute of Marine Sciences

Garcı́a-Ladona¹,

Salvador²,

Fernández³

et al. 2016

Sci. Mar.

View full text Add to dashboard Cite

Summary:Since the mid-1980s, physical oceanographers at the Institute of Marine Sciences have been involved in the use of Lagrangian drifters as a complementary technology for their oceanographic research. As Lagrangian observations became more feasible, these researchers continued developing their own drifters in what was to be the seed of current technological activities at the Physical and Technological Oceanography Department. In this paper we overview the work done during the last 30 years with special focus on Lagrangian developments from the initial activities to the latest developments. In addition to basic oceanography research applications, Lagrangian technological developments include prototypes for measuring surface and subsurface ocean properties, for tracking purposes in search and rescue operations and pollution events, and for monitoring ice motion and thickness in the Arctic. The paper emphasizes original and unpublished technical aspects related to the latest developments.Keywords: Lagrangian drifters; sea surface measurements; salinity measurements; oil spills drifters; SMOS. Treinta años de investigación y desarrollo de boyas Lagrangianas en el Instituto de Ciencias del MarResumen: Desde mediados de la década de los 80, los oceanógrafos físicos en el Instituto de Ciencias del Mar se involucraron en el uso de boyas Lagrangianas como una tecnología complementaria para su investigación oceanográfica. A medida que las observaciones Lagrangianas se volvieron más factibles, los investigadores continuaron desarrollando sus propios flotadores en lo que se convirtió en la semilla de las actuales actividades tecnológicas llevadas a cabo en el Departamento de Oceanografía Física y Tecnológica. En este artículo se presenta una visión general del trabajo realizado durante los últimos 30 años, con especial énfasis en el uso de flotadores a la deriva y desarrollos propios desde su inicio hasta las aplicaciones más recientes. Además de estudios básicos de investigación oceanográfica, los desarrollos tecnológicos llevados a cabo incluyen prototipos para medir las propiedades superficiales y sub-superficiales, para tareas de seguimiento en operaciones de búsqueda y rescate y eventos de contaminación marina o para monitorizar el grosor de la capa de hielo y su movimiento en el Ártico. En este trabajo se hace hincapié en aspectos técnicos originales e inéditos relacionados con los últimos desarrollos.Palabras clave: flotadores Lagrangianos; medidas de la superficie del océano; medidas de salinidad; flotadores de vertidos de petróleo; SMOS.Citation/Como citar este artículo:

show abstract

Deep structure of an open sea eddy in the Algerian Basin

Cited by 48 publications

References 21 publications

Long-distance dispersal, low connectivity and molecular evidence of a new cryptic species in the obligate rafter Caprella andreae Mayer, 1890 (Crustacea: Amphipoda: Caprellidae)

Long-distance dispersal, low connectivity and molecular evidence of a new cryptic species in the obligate rafter Caprella andreae Mayer, 1890 (Crustacea: Amphipoda: Caprellidae)

The circulation pattern in the Mediterranean Sea: issues for modeller consideration

Thirty years of research and development of Lagrangian buoys at the Institute of Marine Sciences

Contact Info

Product

Resources

About