Nursery fidelity, food web interactions and primary sources of nutrition of the juveniles of Solea solea and S. senegalensis in the Tagus estuary (Portugal): A stable isotope approach

Vinagre, Catarina; Salgado, Jéssica Waleska; Costa, M. J.; Cabral, Henrique N.

doi:10.1016/j.ecss.2007.07.006

Cited by 87 publications

(61 citation statements)

References 55 publications

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“…Previous studies on sole using other markers have also suggested a limited juvenile dispersal. Stable isotopes pointed to high site fidelity in 0-group juveniles, but an increased mobility in 1-group sole in Portugal (Vinagre et al 2008b). Low mobility of young sole after settlement was also shown in the Thames estuary based on the consistent relationships between stable isotope signals of juvenile sole and their prey (Leakey et al 2008).…”

Section: Discussionmentioning

confidence: 99%

Microchemical variation in juvenile Solea solea otoliths as a powerful tool for studying connectivity in the North Sea

Cuveliers¹,

Geffen²,

Guelinckx³

et al. 2010

Mar. Ecol. Prog. Ser.

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Estimating connectivity between juvenile and adult fish habitats can provide an important contribution to effective fisheries management, through a better understanding of population resilience to harvesting pressure. Indirect methods for quantifying connectivity, such as geochemical or genetic techniques, allow us to assign adults from various sampling regions to their natal location, provided that natal origin data can be defined. The elemental composition of otoliths from juvenile sole Solea solea collected at 4 sampling locations in the Southern Bight of the North Sea was measured using laser-ablation inductively-coupled plasma mass spectrometry (LA-ICPMS), to determine elemental fingerprints indicative of distinct nursery grounds. Significant differences in elemental composition were detected among the 4 locations, with Na, Sr, Ba, Mn and Rb concentrations varying the most between groups. A discriminant model resulted in high assignment proportions of the juvenile fish to their respective nursery grounds with a total jackknife reclassification success of 88%. Even though some interannual variability in otolith chemistry was observed in juveniles from the Scheldt estuary, spatial patterns seemed to dominate. Our results constitute a firm basis for future investigations on nursery area contributions and quality, adult dispersal history and applications of population traceability.KEY WORDS: Connectivity · Juvenile fish · Nursery · Otolith microchemistry · Traceability · Solea solea Resale or republication not permitted without written consent of the publisherMar Ecol Prog Ser 401: [211][212][213][214][215][216][217][218][219][220] 2010 provide insights into the spatio-temporal connectivity on an evolutionary time scale (in the order of hundreds of generations) (Hedgecock et al. 2007). In marine fish, however, the chances of detecting strong genetic structure, applicable to management decisions, are low because even few migrants suffice to prevent detectable differentiation , Hartl & Clark 2007. Since the 1980s, otolith elemental composition has increasingly been used to describe life histories of fish, study small scale variability in seasonal and within-generation migrations and identify the various environments fish have experienced. The use of trace elements in otoliths is based on the empirical evidence that fish incorporate elements from their environments and that these elements are permanently deposited in their continuously growing otoliths (Campana 1999, Thresher 1999. Consequently, the chemical composition of otoliths differs among fish from different geographical areas and constitutes a powerful multielemental signal reflecting the surrounding physical and chemical environment (Vasconcelos et al. 2007). Juvenile fish that have lived in different coastal environments or estuaries are often characterised by a distinct otolith composition, referred to as the elemental fingerprint. Analysis of otolith composition has been successfully applied in a wide range of flatfish species living in di...

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Section: Discussionmentioning

confidence: 99%

Microchemical variation in juvenile Solea solea otoliths as a powerful tool for studying connectivity in the North Sea

Cuveliers¹,

Geffen²,

Guelinckx³

et al. 2010

Mar. Ecol. Prog. Ser.

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“…A combined carbon and nitrogen stable isotope approach is effective when examining ecosystems with joint marine and terrestrial inputs, particularly salt marshes and mangroves (Peterson and Fry 1987;Kwak and Zedler 1997;Layman 2007;Leakey et al 2008;Vinagre et al 2008). The stable isotope signature of an organism's tissue reflects its assimilated diet (dependant also on isotopic turnover time), spatial variation of food webs and local biogeochemistry (Hobson 1999;Herzka et al 2002;Herzka 2005).…”

Section: Introductionmentioning

confidence: 99%

High site fidelity and low site connectivity in temperate salt marsh fish populations: a stable isotope approach

et al. 2011

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Adult and juvenile fish utilise salt marshes for food and shelter at high tide, moving into adjacent sublittoral regions during low tide. Understanding whether there are high levels of site fidelity for different species of coastal fish has important implications for habitat conservation and the design of marine protected areas. We hypothesised that common salt marsh fish species would demonstrate a high site fidelity, resulting in minimal inter-marsh connectivity. Carbon ((13)C) and nitrogen ((15)N) stable isotope ratios of larvae and juveniles of five common salt marsh fish (Atherina presbyter, Chelon labrosus, Clupea harengus, Dicentrarchus labrax, Pomatoschistus microps), seven types of primary producer and seven secondary consumer food sources were sampled in five salt marshes within two estuary complexes along the coast of south-east England. Significant differences in (13)C and (15)N signatures between salt marshes indicated distinct sub-populations utilising the area of estuary around each salt marsh, and limited connectivity, even within the same estuary complex. (15)N ratios were responsible for the majority of inter-marsh differences for each species and showed similar site-specific patterns in ratios in primary producers, secondary consumers and fish. Fish diets (derived from isotope mixing models) varied between species but were mostly consistent between marsh sites, indicating that dietary shifts were not the source of variability of the inter-marsh isotopic signatures within species. These results demonstrate that for some common coastal fish species, high levels of site fidelity result in individual salt marshes operating as discrete habitats for fish assemblages.

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“…In many estuaries (Vilaine, Rhône, Thames, Gironde, Tagus, and Danube), the influence of river flow on nursery-ground carrying capacity has been established and incorporation of continental organic matter into juvenile-flatfish food webs has been documented (Le Pape et al 2003, Darnaude et al 2004, Leakey et al 2008, Pasquaud et al 2008, Vinagre et al 2008, Banaru & Harmelin-Vivien 2009, Kostecki et al 2010. However, the origin of food sources incorporated into juvenile-flatfish food webs is still not understood in the case of non-estuarine nursery areas.…”

Section: Resale or Republication Not Permitted Without Written Consenmentioning

confidence: 99%

“…This combination of local primary production and freshwater organic matter has already been demonstrated to sustain juvenile flatfish in nursery sectors, especially in estuaries (Darnaude et al 2004, Leakey et al 2008, Pasquaud et al 2008, Vinagre et al 2008, Kostecki et al 2010). The present study provides new insight about the importance of MPB, which is usually considered a subsidiary for juvenile flatfish in estuaries.…”

Section: Msmb Nursery Ground: a Contrasting Function Compared With Esmentioning

confidence: 99%

Trophic ecology of juvenile flatfish in a coastal nursery ground: contributions of intertidal primary production and freshwater particulate organic matter

Kostecki¹,

Roussel²,

Desroy³

et al. 2012

Mar. Ecol. Prog. Ser.

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Nursery fidelity, food web interactions and primary sources of nutrition of the juveniles of Solea solea and S. senegalensis in the Tagus estuary (Portugal): A stable isotope approach

Cited by 87 publications

References 55 publications

Microchemical variation in juvenile Solea solea otoliths as a powerful tool for studying connectivity in the North Sea

Microchemical variation in juvenile Solea solea otoliths as a powerful tool for studying connectivity in the North Sea

High site fidelity and low site connectivity in temperate salt marsh fish populations: a stable isotope approach

Trophic ecology of juvenile flatfish in a coastal nursery ground: contributions of intertidal primary production and freshwater particulate organic matter

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