Migratory history of African longfinned eel Anguilla mossambica from Maningory River, Madagascar: discovery of a unique pattern in otolith Sr:Ca ratios

Lin, Yi-Tsung; Jessop, B. M.; Weyl, Olaf L. F.; Iizuka, Yoshiyuki; Lin, Sheng Huang; Tzeng, Wann‐Nian

doi:10.1007/s10641-014-0275-2

Cited by 19 publications

(14 citation statements)

References 47 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…8 inset) contains an excursion to 78 μmol·g − 1 and a small population above 80 μmol·g −1 . This range of values exceeds typically-observed literature values for fishes from different origins (up to 48 μmol·g −1 , Campana, 1999;Nakai et al, 1999;Morales-Nin et al, 2012b;Albuquerque et al, 2010Albuquerque et al, , 2012, but similarly high concentrations have been reported (up to 137 μmol·g − 1 , Munro et al, 2005;Lin et al, 2015). The distributions for the other two samples are narrower, extending over 14-22 μmol·g −1 in 424, and 27-51 μmol·g −1 in QCD.…”

Section: Statistical Distribution Of Sr Concentrationssupporting

confidence: 51%

Biogenic and diagenetic indicators in archaeological and modern otoliths: Potential and limits of high definition synchrotron micro-XRF elemental mapping

et al. 2015

View full text Add to dashboard Cite

Section: Statistical Distribution Of Sr Concentrationssupporting

confidence: 51%

Biogenic and diagenetic indicators in archaeological and modern otoliths: Potential and limits of high definition synchrotron micro-XRF elemental mapping

et al. 2015

View full text Add to dashboard Cite

“…1). The threshold was estimated as the average of Sr:Ca ratio of the otolith edge plus twice the standard deviation (mean+2* SD) as suggested by Lin et al (2015) and Avigliano et al (2017b).…”

Section: Determination Of Sr:ca Ratio By La-icp-ms Analysismentioning

confidence: 99%

Migration and brackish environment use of Prochilodus lineatus (Characiformes: Prochilodontidae) inferred by Sr:Ca ratio transects of otolith

et al. 2017

View full text Add to dashboard Cite

The streaked prochilod, Prochilodus lineatus, represents the most important fishery in the La Plata Basin (South America). Our objective was to analyze brackish environment use by the streaked prochilod captured from Paraná and Uruguay rivers. To accomplish this, lapillus otolith sections were analyzed for Sr:Ca with laser ablation-inductively coupled plasma-mass spectrometry (LA ICP-MS) to infer habitat use of fish. To the interpretation of transects, a threshold that represents the transition between freshwater and brackish environments was calculated using the Sr:Ca ratio of the otolith edge of specimens captured in the first section of the La Plata Estuary (salinity ≥ 0.5 PSU). The percentage of fish using the estuary was higher in the Paraná (37%) than the Uruguay River (5%). Change-point analysis showed that fish entered the estuary between 1 and 3 times throughout life at a wide range of ages (0-15 years). These incursions had no obvious periodicity. This information should be integrated into future management actions, which should also be specific to each area since migration patterns differ between the major rivers of the basin.Keywords: Connectivity, Freshwater resident, Laser ablation, River migration, Streaked prochilod.El sábalo, Prochilodus lineatus, representa la pesquería más importante en la Cuenca del Río de la Plata (Sudamérica). Nuestro objetivo fue analizar el uso del hábitat estuarino del sábalo proveniente de los ríos Uruguay y Paraná. Para esto, se analizó la relación Sr:Ca en secciones de otolitos lapilli por ablación láser acoplada a espectrometría de masas con fuente de plasma de acoplamiento inductivo (LA ICP-MS) para inferir el uso de hábitat. Para interpretar las transectas, un umbral que representa la transición entre los ambientes de agua dulce y estuarino, fue calculado usando la relación Sr:Ca del borde del otolito de especímenes capturados en la primera sección del estuario del Plata (salinidad ≥0.5 UPS). El porcentaje de peces que usaron el estuario fue más elevado para el Paraná (37%) en relación al Uruguay (5%). El análisis de cambio puntual mostro que los individuos ingresan al estuario entre 1 a 3 veces a lo largo de la vida en un amplio rango de edades (0-15 años). Las incursiones no mostraron una periodicidad notoria. Esta información debería integrarse a futuras acciones de manejo que deberían ser específicas para cada área considerando los patrones de migración que difieren entre los grandes ríos de la Cuenca.Palabras clave: Ablación laser, Agua dulce residente, Conectividad, Migración de rio, Sábalo.

show abstract

“…() and temporal differentiation has been observed between cohorts of glass eels of A. anguilla arriving at different times during the recruitment season (Dannewitz et al ., ; Maes et al ., ; Pujolar et al ., ). The use of marine, brackish and freshwater habitats by A. mossambica (Lin et al ., , ) may therefore result in ecotypical differentiation and, periodical inaccessibility of certain rivers (Bruton et al ., ; Jackson, ) might explain the observed low genetic variability of the Swaziland sample (Supporting Information Table S5). Additionally this location might represent the distributional edge, as its position in the drift shadow of currents approaching from Madagascar (Figure ) could restrict larval abundance (Jubb, ) and perhaps mixing and subsequently result in sporadic glass eel recruitment.…”

Section: Discussionmentioning

confidence: 99%

Genetic variability and demographic history ofAnguilla mossambica(Peters, 1852) from continental Africa and Madagascar

Frankowski

Lübke

Coke³

et al. 2019

Journal of Fish Biology

View full text Add to dashboard Cite

In this study, population genetic and demographic parameters were inferred using sequence data from 151 individuals of Anguilla mossambica originating from continental south and south-east Africa and Madagascar. The analyses were based on a 532 bp segment of the mitochondrial cytochrome b gene. The absence of genetic structuring was observed thereby supporting the hypothesis of panmixia for the endemic A. mossambica. The overall nucleotide diversity π = 0.002 and the haplotype diversity reached h = 0.691. Significant negative values from several tests of neutrality and mismatch analysis pointed to fluctuating historical population sizes. Bayesian averaging resulted in higher support for population growth models vs. a constant population-size model. Population decline and subsequent growth most likely predated the last glacial and were probably related to extended periods of extreme drought followed by wetter and more stable hydroclimate between 150 and 75,000 years before present (kBP). According to this scenario the female effective population size has increased since 110 kBP by c. two orders of magnitude to a recent level of about 650,000 (219,317-2,292,000). K E Y W O R D S

show abstract

Migratory history of African longfinned eel Anguilla mossambica from Maningory River, Madagascar: discovery of a unique pattern in otolith Sr:Ca ratios

Cited by 19 publications

References 47 publications

Biogenic and diagenetic indicators in archaeological and modern otoliths: Potential and limits of high definition synchrotron micro-XRF elemental mapping

Biogenic and diagenetic indicators in archaeological and modern otoliths: Potential and limits of high definition synchrotron micro-XRF elemental mapping

Migration and brackish environment use of Prochilodus lineatus (Characiformes: Prochilodontidae) inferred by Sr:Ca ratio transects of otolith

Genetic variability and demographic history ofAnguilla mossambica(Peters, 1852) from continental Africa and Madagascar

Contact Info

Product

Resources

About