Connectivity between estuaries and marine environment: Integrating metrics to assess estuarine nursery function

Vasconcelos, Rita P.; Patrick, Ruth; Costa, M. J.; Cabral, Henrique N.

doi:10.1016/j.ecolind.2010.12.012

Cited by 125 publications

(73 citation statements)

References 57 publications

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“…For flatfish, these areas act as nurseries where the trade-off between growth and survival is optimized due to abundant food resources, few predators and favourable environmental conditions (Bergman et al 1988b, Gibson et al 2002. These specific habitat quality features in combination with the amount of area available have the potential to influence recruitment levels (Rijnsdorp et al 1992, Gibson 1994, Van der Veer et al 1994, 2000 and thus, over the years, there has been an increasing interest in better evaluating the function of nurseries (Vasconcelos et al 2011). Al though the production of juveniles to the adult populations has been suggested as the most integrative measure of the quality of juvenile habitats (Able et al 1999, Beck et al 2001, owing to problems in accurately estimating population sizes and their changes (Cowley & Whitfield 2002), other indicators have been sought.…”

Section: Introductionmentioning

confidence: 99%

Latitudinal trends in habitat quality of shallow‑water flatfish nurseries

Freitas¹,

Kooijman²,

Veer³

2012

Mar. Ecol. Prog. Ser.

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The habitat quality of European shallow-water nurseries was studied for 3 common flatfish species based on juvenile growth conditions. Field growth of 0-group plaice Pleuronectes platessa, flounder Platichthys flesus and sole Solea solea, from both published and unpublished studies, was compared with maximum growth predicted by a bioenergetics model based on the dynamic energy budget theory. In plaice and flounder, realized growth ratio decreased consistently during the growing season in most of the nurseries analyzed, indicating a widespread pattern of declining conditions. In sole, growth performance was not maximal, but as opposed to the other species, no clear temporal trend in realized growth ratio was observed. A latitudinal comparison of realized growth ratio over the various nurseries indicated clear positive trends for plaice and flounder, with better growth conditions at northern latitudes. In sole, despite some variability, the same trend was found during part of the summer. In the absence of clear gradients in benthic prey biomass, we hypothesize that increased food limitation in southern locations is most likely caused by interspecific competition reducing maximum individual intake rates. These results suggest that, in the context of global warming, habitat quality of southern European nurseries for juvenile growth may be particularly affected by the combined interaction of food and thermal constraints.

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Section: Introductionmentioning

confidence: 99%

Latitudinal trends in habitat quality of shallow‑water flatfish nurseries

Freitas¹,

Kooijman²,

Veer³

2012

Mar. Ecol. Prog. Ser.

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“…Material at the core of the otolith represents deposition during the first year of life; thus, chemical signatures found in the core can act as a natural tag to be used to estimate the proportion of adults derived from different nurseries (e.g. Vasconcelos et al 2011).…”

Section: Introductionmentioning

confidence: 99%

Do vertebral chemical signatures distinguish juvenile blacktip shark (Carcharhinus limbatus) nursery regions in the northern Gulf of Mexico?

Lewis

Patterson

Carlson

et al. 2016

Mar. Freshwater Res.

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Abstract. Identifying and protecting shark nurseries is a common management strategy used to help rebuild overfished stocks, yet we know little about connectivity between juvenile and adult populations. By analysing trace metals incorporated into vertebral cartilage, it may be possible to infer natal origin based on nursery-specific chemical signatures.To assess the efficacy of this approach, we collected juvenile blacktip sharks (Carcharhinus limbatus; n ¼ 93) from four regions in the Gulf of Mexico in 2012 and 2013 and analysed their vertebral centra with laser ablation-inductively coupled plasma-mass spectrometry. We observed significant regional differences in six element : Ca ratios in both 2012 and 2013. Multi-element chemical signatures were significantly different among regions and between year-classes. Year-class-specific linear discriminant function analysis yielded regional classification accuracies of 81% for 2012 and 85% for 2013, although samples were not obtained from all four regions in 2012. Combining year-classes resulted in an overall classification accuracy of 84%, thus demonstrating the usefulness of this approach. These results are encouraging yet highlight a need for more research to better evaluate the efficacy of vertebral chemistry to study elasmobranch population connectivity.

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“…Las especies observadas en Las Guásimas, son de fondos blandos y ambientes tropicales que utilizan la laguna con fines de protección, alimentación y crianza (Vasconcelos et al, 2011). Estas características causan diferencias en la riqueza con otras zonas del Golfo de California, debido a que un ecosistema con características diferentes juega un papel importante en la diversidad específica (Galván-Magaña et al, 2000).…”

Section: Discussionunclassified

Composicion y aspectos biogeograficos del ensamble de peces de la laguna costera Las Guasimas, Sonora, Mexico

Padilla-Serrato¹,

López‐Martínez²,

Rodríguez-Romero³

et al. 2016

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RESUMEN.Se presenta la composición de especies de peces y sus aspectos biogeográficos de la Laguna Las Guásimas, localizada en el sector central del Golfo de California. Se realizaron siete campañas estacionales de muestreo y las colectas se efectuaron con tres artes de pesca: atarraya, chinchorro de línea y red de arrastre. Se observaron 95 especies representadas por 16 órdenes, 38 familias y 67 géneros. Las familias mejor representadas por su número de especies fueron: Carangidae, Sciaenidae, Haemulidae, Paralichthydae, Engraulidae y Gerreidae. Además se identificaron tres especies endémicas del Golfo de California (Micropogonias megalops, Leuresthes sardina y Pleuronichthys ocellatus). El análisis de afinidad biogeográfica mostró una alta dominancia de especies distribuidas en el Pacífico Oriental Tropical (Provincia de Cortés y Panámica) y especies transicionales entre la Provincia de California y el Pacífico Oriental Tropical (POT). Utilizando investigaciones sobre peces efectuadas anteriormente en la localidad, se realizó una comparación entre las especies previamente registradas en la localidad y las registradas en esta investigación, utilizando como indicadores la vulnerabilidad y resiliencia. Se observaron cambios en la estructura de la comunidad a lo largo de tiempo, que pudieran ser inducidos por cambios ambientales, actividades antropogénicas como la pesca y/o la dinámica del ecosistema. La mayoría de las especies que son nuevos registros (84%), mostraron vulnerabilidades de moderadas a altas, enfatizando la alta importancia de la laguna como área de crianza y protección de estas especies. Palabras clave: peces, biodiversidad, afinidad biogeográfica, Laguna Las Guásimas, Golfo de California. Composition and biogeography of the fish assemblage associated with the coastalLas Guásimas Lagoon, Sonora, Mexico ABSTRACT. We presented the species composition and biogeography at the Las Guásimas Lagoon, located in the central portion of the Gulf of California. We perform seven sampling and the seasonal collections were made with three gear: cast nets, seine and trawl line. We recorded 95 species represented by 16 orders, 38 families and 67 genera. The families in number of species were: Carangidae, Sciaenidae, Haemulidae, Paralichthydae, Engraulidae and Gerreidae. Besides were identified three endemic species of the Gulf of California (Micropogonias megalops, Leuresthes sardina and Pleuronichthys ocellatus). Biogeographic affinity analyzes showed results that indicate a high dominance of species distributed in the Eastern Tropical Pacific (Province of Cortes and Panamic) and transitional species between the California Province and the Eastern Tropical Pacific (ETP). We use previous research on fish in the locality and make a comparison between the previously recorded species and new species observed, using as indicators of vulnerability and resilience. Changes in community structure over time, which might be induced by environmental changes, human activities such as fishing and/or ecosystem dynamics were obse...

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Connectivity between estuaries and marine environment: Integrating metrics to assess estuarine nursery function

Cited by 125 publications

References 57 publications

Latitudinal trends in habitat quality of shallow‑water flatfish nurseries

Latitudinal trends in habitat quality of shallow‑water flatfish nurseries

Do vertebral chemical signatures distinguish juvenile blacktip shark (Carcharhinus limbatus) nursery regions in the northern Gulf of Mexico?

Composicion y aspectos biogeograficos del ensamble de peces de la laguna costera Las Guasimas, Sonora, Mexico

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