Population dynamics of the red shrimp Aristeus antennatus in the Balearic Islands (western Mediterranean): Short spatio-temporal differences and influence of environmental factors

Guijarro, Beatríz; Massutí, Enric; Moranta, Joan; Díaz, Paz

doi:10.1016/j.jmarsys.2007.04.003

Cited by 50 publications

(57 citation statements)

References 31 publications

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“…Along the fishing grounds off the Balearic Islands, Guijarro et al (2008) showed moderate spatial and temporal differences between the two different sample sites analysed, that were related to the different environmental conditions. In fact, at one site they found a more demographically homogeneous population, whereas the other site showed important variations, such as a high abundance of juveniles being recruited to the fishing grounds.…”

Section: Discussionmentioning

confidence: 89%

“…among the fishermen exploiting the various Mediterranean fishing grounds. Moreover, as hypothesized above, these differences could be also attributed to the particular oceanographic conditions (Guijarro et al, 2008) that are able to influence the abiotic (climate and hydrodynamics) and biotic (trophic resources and predators) variables. In support of this consideration, we can add that this species shows a marked dissimilarity in reproductive behaviour between northern and more southern populations, and that these differences may be referred to as an expression of a biogeographical gradient, or a different adaptation to the conditions of the bathyal system (Margalef, 1985;Mura & Cau, 1989;Arculeo et al, 1995).…”

Section: Discussionmentioning

confidence: 98%

“…In fact, at one site they found a more demographically homogeneous population, whereas the other site showed important variations, such as a high abundance of juveniles being recruited to the fishing grounds. According to Guijarro et al (2008) and references therein, the importance of water mass movements in size distribution and abundance of blue and red shrimp is indisputable. The same observation was also reported by Maggio et al (2009), who analysed the genetic variation in this species in different parts of the Mediterranean Sea; in particular, those authors did not find any significant difference between the samples and hypothesized, as also reported by Cartes et al (2008), that such genetic homogeneity is strictly correlated with: (i) the biological characteristics of this species; (ii) the horizontal and vertical fluctuations of the water masses; and (iii) the spatio-temporal variations in the chemical/physical factors and the trophic resources.…”

Section: Discussionmentioning

confidence: 99%

“…Considering its high economic value, the blue and red shrimp has been the object of numerous research studies addressing their reproductive cycle (Arculeo et al, 1995 and references therein), catch estimations, ecology, population structure (Demestre & Lleonart, 1993;Fiorentino et al, 1998;Cau et al, 2002;Sardà et al, 2004;D'Onghia et al, 2005;Arculeo, 2008;Guijarro et al, 2008), and more recently genetic variation (Roldan et al, 2008;Maggio et al, 2009). Investigations on both population and genetic structure can contribute to the knowledge of, for example, whether or not the species is overexploited and whether or not it is represented by different unit stocks; knowledge that may provide useful information in recovery programmes or other management activities.…”

Section: Introductionmentioning

confidence: 99%

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Growth Parameters and Population Structure of Aristeus Antennatus (Decapoda, Penaeidae) in the South Tyrrhenian Sea (Southern Coast of Italy)

Arculeo

Brutto

Cannizaro

et al. 2011

Crustac

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The blue and red shrimp Aristeus antennatus (Risso, 1816) is one of the most important fishery resources in the Mediterranean Sea. Monthly samplings of blue and red shrimp from June 2006 to May 2007 were landed by the trawl fleet in two northwest Sicilian fishing harbours (San Vito Lo Capo and Terrasini). The carapace length (CL) frequency distribution of females ranged between 15.00 and 59.00 mm, whereas male CLs ranged between 17.00 and 34.00 mm. The estimated parameters of the Von Bertalanffy growth function (VBGF) for San Vito lo Capo females and males were: CL∞ = 65 mm, K = 0.58 y −1 and CL∞ = 41 mm, K = 0.71 y −1 , respectively; while for Terrasini females and males these were: CL∞ = 69 mm, K = 0.65 y −1 and CL∞ = 37 mm, K = 0.8 y −1 , respectively. In this study, we update the information on stock structure and growth parameters of the blue and red shrimp in two northwest Sicilian fishing grounds and compare these results with other data recorded in the Mediterranean Basin. RIASSUNTOIl gambero viola Aristeus antennatus (Risso, 1816) è una delle risorse da pesca più importanti nel Mar Mediterraneo. L'indagine è stata effettuata in due marinerie della sicilia nord-occidentale (San Vito Lo Capo e Terrasini) dove mensilmente e in un periodo compreso tra giugno 2006 e maggio 2007, venivano acquistati allo sbarco campioni di gambero viola. La distribuzione di frequenza di lunghezza carapace (LC) delle femmine era compresa tra 15,00 e 59,00 mm, mentre nei maschi tra 17,00 e 34,00 mm. I parametri di crescita stimati con la funzione di Von Bertalanffy (VBGF) per le femmine e i maschi di San Vito Lo Capo sono risultati rispettivamente di: CL∞ = 65 mm, K = 0,58 y −1 e CL∞ = 41 mm, K = 0,71 y −1 , mentre per le femmine ed i maschi di Terrasini sono stati: CL∞ = 69 mm, K = 0,65 y −1 e CL∞ = 37 mm, K = 0,8 y −1 . In questo studio vengono 4 )

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Section: Discussionmentioning

confidence: 89%

Section: Discussionmentioning

confidence: 98%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Growth Parameters and Population Structure of Aristeus Antennatus (Decapoda, Penaeidae) in the South Tyrrhenian Sea (Southern Coast of Italy)

Arculeo

Brutto

Cannizaro

et al. 2011

Crustac

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“…Recently, some authors demonstrated that the population dynamics of A. antennatus are strictly linked to the environmental conditions of its deep-sea habitat, in terms of climatic events, hydrographic factors and trophic resources (Cartes, 1994;Company et al, 2008;Guijarro et al, 2008;Maynou, 2008;Lo Brutto et al, 2011), thereby suggesting that this species merits attention.…”

Section: Introductionmentioning

confidence: 99%

Further investigations on populations of the deep-water blue and red shrimp Aristeus antennatus (Risso, 1816) (Decapoda, Dendrobranchiata), as inferred from Amplified Fragment Length Polymorphism (AFLP) and mtDNA analyses

Brutto¹,

Cannas²,

Arculeo³

et al. 2012

Crustac

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The aim of this study was to integrate existing mitochondrial DNA data relating to the deepsea blue and red shrimp Aristeus antennatus (Risso, 1816) with data obtained by Amplified Fragment Length Polymorphism (AFLP). A total of 145 AFLP polymorphic loci were scored in 236 specimens collected from one Atlantic and seven Mediterranean sample sites. AMOVA results revealed that the overall genetic variation among-populations was lower (11.81%) than withinpopulations (88.19%). The genetic variation between the Atlantic and Mediterranean samples was found to be not significant ( CT = −0.007; N.S.), indicating that the transition area between the Atlantic Ocean and the Mediterranean Sea does not act as a barrier to gene flow. Bayesian analysis also demonstrated the absence of genetic differentiation between the Atlantic and Mediterranean populations and within the Mediterranean basin. The results are in agreement with those previously published using mitochondrial markers. Some considerations on the life history traits of the species are discussed. Key words. -AFLP, mtDNA, Aristeus antennatus, Atlanto-Mediterranean region RIASSUNTO Lo scopo del lavoro è stato quello di integrare dati precedenti ottenuti dall'analisi del DNA mitocondriale nel gambero viola Aristeus antennatus (Risso, 1816) con dati ottenuti dall'analisi di un marcatore nucleare (Amplified Fragment Length Polymorphism, AFLP). In totale sono stati identificati 145 loci polimorfici AFLP in 236 esemplari raccolti da sette località del Mediterraneo e da un sito dell'Oceano Atlantico. I risultati dell'analisi AMOVA hanno rivelato che la variazione genetica tra le popolazioni è inferiore (11,81%) alla variazione intra-popolazionale (88,19%). Il 3 )

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Accounting for preferential sampling in species distribution models

Pennino

Paradinas

Illian

et al. 2018

Ecology and Evolution

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Species distribution models (SDMs) are now being widely used in ecology for management and conservation purposes across terrestrial, freshwater, and marine realms. The increasing interest in SDMs has drawn the attention of ecologists to spatial models and, in particular, to geostatistical models, which are used to associate observations of species occurrence or abundance with environmental covariates in a finite number of locations in order to predict where (and how much of) a species is likely to be present in unsampled locations. Standard geostatistical methodology assumes that the choice of sampling locations is independent of the values of the variable of interest. However, in natural environments, due to practical limitations related to time and financial constraints, this theoretical assumption is often violated. In fact, data commonly derive from opportunistic sampling (e.g., whale or bird watching), in which observers tend to look for a specific species in areas where they expect to find it. These are examples of what is referred to as preferential sampling, which can lead to biased predictions of the distribution of the species. The aim of this study is to discuss a SDM that addresses this problem and that it is more computationally efficient than existing MCMC methods. From a statistical point of view, we interpret the data as a marked point pattern, where the sampling locations form a point pattern and the measurements taken in those locations (i.e., species abundance or occurrence) are the associated marks. Inference and prediction of species distribution is performed using a Bayesian approach, and integrated nested Laplace approximation (INLA) methodology and software are used for model fitting to minimize the computational burden. We show that abundance is highly overestimated at low abundance locations when preferential sampling effects not accounted for, in both a simulated example and a practical application using fishery data. This highlights that ecologists should be aware of the potential bias resulting from preferential sampling and account for it in a model when a survey is based on non‐randomized and/or non‐systematic sampling.

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Population dynamics of the red shrimp Aristeus antennatus in the Balearic Islands (western Mediterranean): Short spatio-temporal differences and influence of environmental factors

Cited by 50 publications

References 31 publications

Growth Parameters and Population Structure of Aristeus Antennatus (Decapoda, Penaeidae) in the South Tyrrhenian Sea (Southern Coast of Italy)

Growth Parameters and Population Structure of Aristeus Antennatus (Decapoda, Penaeidae) in the South Tyrrhenian Sea (Southern Coast of Italy)

Further investigations on populations of the deep-water blue and red shrimp Aristeus antennatus (Risso, 1816) (Decapoda, Dendrobranchiata), as inferred from Amplified Fragment Length Polymorphism (AFLP) and mtDNA analyses

Accounting for preferential sampling in species distribution models

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