Margarita María Rincón Hidalgo

Instituto Español de Oceanografia | IEO · Centro Oceanográfico de Cádiz

This study presents a state-space modelling framework for the purposes of stock assessment. The stochastic population dynamics build on the notion of correlated survival and capture events among individuals. The correlation is thought to arise as a combination of schooling behaviour, a spatially patchy environment, and common but unobserved environ...

Anchovy population dynamics in the Gulf of Cádiz are governed by environmental processes. Sea surface temperature, intense easterly winds, and discharges from the Guadalquivir River have been identified as key factors determining early life stage mortality in this anchovy stock. We have constructed an environment-based recruitment model that simula...

Many studies underscore the importance of incorporating the effect of environmental data within a life-history-stage-specific framework for determining the recruitment and survival of small pelagic fish. The recruitment of anchovy (Engraulis encrasicolus) in the Gulf of Cádiz (NE Atlantic) is sensitive to the effect of intense easterlies, stratific...

Integrated models are able to combine several sources of data into a single analysis using joint likelihood functions, fostering the consistency of assumptions among analyses and the ability to diagnose goodness of fit and model-misspecification. Owing to their capacity to consistently combine diverse information, integrated models could detect the...

The population dynamics of small and middle-sized pelagic fish are subject to considerable interannual and interdecadal fluctuations in response to fishing pressure and natural factors. However, the impact of environmental forcing on these stocks is not well documented. The Moroccan Atlantic coast is characterized by high environmental variability...

Length-based methods have been widely applied to estimate biological parameters and to understand the dynamics of marine resource populations within the category of data-limited stocks. However, few studies have been performed to date to test the parameter sensitivity of length-based methods on stocks with different traits and fishery contexts. In...

Length-based methods have been widely applied to estimate biological parameters and understand the dynamics of marine resource populations within data-limited stocks. However, to date few studies have tested the sensitivity of parameters in length-based methods examining stocks with different traits and fishery contexts. In the Bay of Biscay and th...

The ICES Working Group on Mixed Fisheries Advice (WGMIXFISH-ADVICE) met remotely to produce mixed fisheries forecasts for the Bay of Biscay, Celtic Sea, Iberian Waters and North Sea. Mixed fisheries advice highlights the potential implications of single-stock (total allowable catch and effort) management on the catches of multiple stocks caught tog...

Quantifying factors that influence marine predator distributions is essential to understanding the current and future change in marine biodiversity. Here, we test whether marine predator distribution relates to prey, or is better predicted by other specific habitat features. We examine the correlation between spatial distribution of three seabird s...

The Atlantic chub mackerel Scomber colias has become an increasingly important commercial species in the European Atlantic waters in the last 10–15 years, probably through an expansion process from NW African waters and due to market needs. However, at present there are no assessment or advice requirements. In the WK framework, available informatio...

The ICES Working Group on Ecosystem Assessment of Western European Shelf Seas (WGEAWESS) recently completed its third three-year term from 2017 to 2019. This report describes the group’s progress on the following objectives: (1) to continue metadata compilation for all ecosystem components in order to carry out integrated ecosystem assessment (IEA)...

This report summarize the outputs from the first multi-stakeholder physical meeting in the FarFish project. The aim of the meeting was to discuss stakeholders’ interests and needs, related to how they can contribute to the development of the Management Recommendations, while improving the sustainability of the fishery of the EU fleet fishing in dis...

Integrated models are able to combine several sources of data into a single analysis using joint likelihood functions, fostering the consistency of assumptions among analyses and the ability to diagnose goodness of fit and model-misspecification. Owing to their capacity to consistently combine diverse information, integrated models could detect the...

This working document presents the specifications and calculated estimations of a Gadget model benchmarked in WKPELA 2018 to provide advice and reference points for anchovy in the Southern component of 9a ICES division for the period corresponding to July 1st 2018 to June 31st 2019.

A Benchmark on pelagic stocks (WKPELA2018), chaired by External Chair Katja Enberg*, Norway, and ICES Chair Pieter-Jan Schon*, UK, and attended by three invited ex- ternal experts, Verena Trenkel, France, Ashleen Benson, US, and Bjarki Elvarsson, Iceland, will be established and meet for a three-day data evaluation meeting at ICES Headquarters 4–6,...

Small pelagics dynamics are characterized by extreme variability owing to environmental factors, fishing and natural mortality (Fréon et al., 2005). Anchovy (Engraulis encrasicolus) in Gulf of Cádiz is affected by this variability owing to environmental drivers, that exert a bottom control, and fishing pressure that exerts a severe control of the p...

This manuscript implements stochastic modeling to investigate the response of a European anchovy (Engraulis encrasicolus) stock to climatic forcing under different exploitation strategies. The model implements realistic parametrizations for defining the key environmental variables forcing recruitment in the Gulf of Cádiz. Despite the tight control...

Integrated models are able to combine several sources of data into a single analysis using joint likelihood functions, fostering the consistency of assumptions among analyses and the ability to diagnose goodness of fit and model-misspecification. Owing to their capacity to consistently combine diverse information, integrated models could detect the...

The ICES Working Group on Ecosystem Assessment of Western European Shelf Seas (WGEAWESS) meeting was held in Lisbon (Portugal), on 24–28 April 2017. The meet-ing was attended by 8 participants from 4 countries and chaired by Steven Beggs, Northern Ireland (UK). This was the first year of the new 3-year Terms of Reference (ToR) for WGEAWESS. The mai...

The Strait of Gibraltar replenishes the Mediterranean with Atlantic waters through an intense eastward current known as the Atlantic Jet (AJ). The AJ fertilizes the southwestern Mediterranean and is considered to be the ultimate factor responsible for the comparatively high fish production of this region. Here, we perform an analysis of the availab...

Monthly composites of chlorophyll concentration (CHL, in ) between 2010 and 2011. (TIFF)

Monthly composites of Sea Surface Temperature (SST, in ) between 1998 and 2000. (TIFF)

Monthly composites of Sea Surface Temperature (SST, in ) between 2004 and 2006. (TIFF)

Evolution of the total GRT of purse seiners in the NW Alboran (CopeMed II, 2011). (TIFF)

Monthly composites of chlorophyll concentration (CHL, in ) between 1998 and 2000. (TIFF)

Monthly composites of chlorophyll concentration (CHL, in ) between 2001 and 2003. (TIFF)

Monthly composites of chlorophyll concentration (CHL, in ) between 2007 and 2009. (TIFF)

Monthly composites of Sea Surface Temperature (SST, in ) between 2010 and 2011. (TIFF)

Map of the Alboran Sea with standard circulation structures. AJ, WAG and EAG stand respectively for the Atlantic Jet as well as the western and Eastern anticyclonic gyres. (TIFF)

Monthly composites of chlorophyll concentration (CHL, in ) between 2004 and 2006. (TIFF)

Monthly composites of Sea Surface Temperature (SST, in ) between 2001 and 2003. (TIFF)

Yearly catches of small pelagic fish in the NW Alboran Sea during the last decade (data only reliable since 2000). Source: Andalusian Regional Government IDAPES database (http://www.juntadeandalucia.es/agriculturaypesca/idapes/). Black and white circle are anchovy and sardine respectively while the white square is mackerel. (TIFF)

Monthly composites of geostrophic circulation and kinetic energy (KE, in ) derived from altimetry between 2004 and 2006. (TIFF)

Monthly composites of geostrophic circulation and kinetic energy (KE, in ) derived from altimetry between 2010 and 2011. (TIFF)

Monthly composites of Sea Surface Temperature (SST, in ) between 2007 and 2009. (TIFF)

Monthly composites of geostrophic circulation and kinetic energy (KE, in ) derived from altimetry between 1998 and 2000. (TIFF)

Monthly composites of geostrophic circulation and kinetic energy (KE, in ) derived from altimetry between 2007 and 2009. (TIFF)

Monthly composites of geostrophic circulation and kinetic energy (KE, in ) derived from altimetry between 2001 and 2003. (TIFF)

The eastward current at the Strait of Gibraltar (the Atlantic Jet) fertilizes the southwestern Mediterranean and it is the responsible for the comparatively high fish landing of this region. However, we demonstrate in this communication that the high kinetic energy of this current negatively impacts the recruitment of anchovy owing to the advection...

A functional classification methodology, based on the Reproducing Kernel Hilbert Space (RKHS) theory, is proposed for discrimination of gene expression profiles. The parameter function involved in the definition of the functional logistic regression is univocally and consistently estimated, from the minimization of the penalized negative log-likeli...

This paper focuses on the problem of functional statistical classification of gene expression curves. A local-wavelet-vaguelette-based functional logistic regression approach is presented. This approach is specially suitable for the classification of non-stationary singular (non-differentiable) curves. The performance of the methodology proposed is...

Functional classification of fractal temporal gene expression data is per- formed in terms of logistic regression based on the wavelet-vaguelette decomposition of the temporal gene expression curves. The fractality features of the gene expres- sion profiles comes from the stochastic evolutionary forces acting on genomes. The noise level introduced...