Spatial synchrony in the recruitment of intertidal invertebrates along the coast of central Chile

Lagos, Nelson A.; Tapia, Fabián J.; Navarrete, Sergio A.; Castilla, Juan Carlos

doi:10.3354/meps07105

Cited by 41 publications

(29 citation statements)

References 39 publications

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“…Sitios separados en escalas de kilómetros o menos presentan diferente intensidad en el asentamiento pudiendo relacionarse con diferencias en el suministro larval (Connell 1985, Sutherland 1990, Porri et al 2006a, como fue observado en el presente estudio, lo que podría reflejar la influencia de características oceanográficas y topográficas locales (Gaines & Bertness 1992, Connolly et al 2001, Menge et al 2003, Porri et al 2006b, Mc Quaid & Phillips 2006, Lagos et al 2007). …”

Section: Figura 3 Patrón Temporal De Salinidad (Cuadrado Negro) Temunclassified

“…Específicamente, en el intermareal de la costa central de Chile se ha observado para Perumytilus purpuratus alta variabilidad espacial asociada a procesos de micro y mesoescala (Lagos et al 2007). Adicionalmente, se ha documentado que el asentamiento en la familia Mytilidae es afectado por las condiciones de flujo de microescala (Cáceres-Martínez et al 1994, Pernet et al 2003 y por la amplitud mareal (Hunt & Scheibling 1996).…”

Section: Figura 3 Patrón Temporal De Salinidad (Cuadrado Negro) Temunclassified

“…Diferentes mecanismos de transporte han sido propuestos para explicar la sincronía en el asentamiento en invertebrados marinos, por ejemplo: i) ondas internas en escalas espaciales entre 30 y 300 m en cirripedios en el norte de Baja California (Ladah et al 2005), ii) surgencia a mayores distancias (< 30 km) para distintas especies de cirripedios y para el bivalvo Perumytilus purpuratus en la costa central de Chile (Lagos et al 2007) y, iii) aspiraciones de Bernoulli en larvas de Concholepas concholepas (Molinet et al 2006). Además, la correlación espacial en el asentamiento en escalas desde 100s de m a km ha sido asociada a mecanismos de retención y advección, asociados a vientos permanentes hacia la costa a través de extensas áreas costeras (Bertness et al 1996, Jeffrey & Underwood 2000.…”

Section: Figura 3 Patrón Temporal De Salinidad (Cuadrado Negro) Temunclassified

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Variabilidad espacial y temporal del suministro larval de mitílidos en el Seno de Reloncaví, sur de Chile

Barria

Gebauer

Molinet

2012

Rev. biol. mar. oceanogr.

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Section: Figura 3 Patrón Temporal De Salinidad (Cuadrado Negro) Temunclassified

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Variabilidad espacial y temporal del suministro larval de mitílidos en el Seno de Reloncaví, sur de Chile

Barria

Gebauer

Molinet

2012

Rev. biol. mar. oceanogr.

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“…The increased abundance of P. africanus during the time when no correlation was found between wind and its supply might be explained by the duration of nighttime flood tides. Larval transport processes may be coherent over spatial scales from tens (Lagos et al 2007) to hundreds (Diehl et al 2007) of km for different coastal organisms, and the likely mechanisms we discuss herein may apply to other coastal areas along the southwestern coast of the Iberian Peninsula. However, independent results are lacking and, therefore, support for the mechanisms proposed is still awaited.…”

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confidence: 99%

Shelf and estuarine transport mechanisms affecting the supply of competent larvae in a suite of brachyuran crabs with different life histories

Olaguer-Feliú

Flores²,

Queiroga³

et al. 2010

Mar. Ecol. Prog. Ser.

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Supply of competent larvae to the benthic habitat is a major determinant of population dynamics in coastal and estuarine invertebrates with an indirect life cycle. Larval delivery may depend not only on physical transport mechanisms, but also on larval behavior and physiological progress to the competent stage. Yet, the combined analysis of such factors has seldom been attempted. We used time-series analyses to examine tide-and wind-driven mechanisms responsible for the supply of crab megalopae to an estuarine river under a major marine influence in SW Spain, and monitored the vertical distribution of upstream moving megalopae, their net flux and competent state. The species Panopeus africanus (estuarine), Brachynotus sexdentatus (euryhaline) and Nepinnotheres pinnotheres (coastal) comprised 80% of the whole sample, and responded in a similar way to tide and wind forcing. Tidal range was positively correlated to supply, with maxima 0 to 1 d after spring tides, suggesting selective tidal stream transport. Despite being extensively subjected to upwelling, downwind drift under the effect of westerlies, not Ekman transport, explained residual supply variation at our sampling area. Once in the estuary, net flux and competence state matched the expected trends. Net upstream flux increased from B. sexdentatus to P. africanus, favoring transport to a sheltered coastal habitat (N. pinnotheres), or to the upper estuary (P. africanus). Competence state was highest in N. pinnotheres, intermediate in B. sexdentatus and lowest in P. africanus, as expected if larvae respond to cues from adequate benthic habitat. P. africanus megalopae were found close to the bottom, not above, rendering slower upstream transport than anticipated. KEY WORDS: Upwelling · Ekman transport · Downwind drift · Selective tidal stream transport · Larval net flux · Bay of Cádiz Resale or republication not permitted without written consent of the publisherMar Ecol Prog Ser 410: [125][126][127][128][129][130][131][132][133][134][135][136][137][138][139][140][141] 2010 1988, Palmer et al. 1996) makes dispersal neutral or even disadvantageous (Strathmann et al. 2002). An ontogenetic migration function has been hypothesized to better explain larval offshore exportation (Strathmann et al. 2002). Offshore migration of early life-cycle stages would reduce predation, expose larvae to a more tolerable environmental variability and, occasionally, diminish food competition with benthic suspension feeders in coastal or estuarine areas. Still, the migration back to adult habitats depends on how far the larvae migrate from the parental area, their behavioral capabilities and the water current patterns they are exposed to (Sponaugle et al. 2002).As coastal (Caley et al. 1996, Armsworth 2002) and estuarine (Bilton et al. 2002) benthic populations may often be recruitment-limited, larval supply and settlement success are critical processes for their maintenance (Gaines & Roughgarden 1985, Roughgarden et al. 1988. Understanding the mechanisms responsible for...

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“…These collectors have been used extensively in recruitment studies of mussels and other invertebrate species in Chile (Narváez et al 2006, Lagos et al 2007, Caro et al 2010) and elsewhere (Menge et al 1994, Le Corre et al 2013. Collectors can be taken back to the laboratory for identification of settlers under a dissecting scope.…”

Section: Daily Settlement On the Shorementioning

confidence: 99%

Tumbling under the surf: wave-modulated settlement of intertidal mussels and the continuous settlement-relocation model

Navarrete¹,

Largier

Vera³

et al. 2015

Mar. Ecol. Prog. Ser.

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For many mussel species, the model of planktonic development followed by metamorphosis and settlement in the benthic habitat is complicated by the existence of planktonic post-metamorphic stages and/or pediveliger benthic stages that can relocate after initial settlement. This has led to the long-standing hypothesis of 'primary' settlement from the plankton onto intertidal algal substrate followed by 'secondary' relocation to mussel beds. Here, we investigate settlement of the intertidal mussels Perumytilus purpuratus and Semimytilus algosus in central Chile to test this hypothesis and explore physical drivers. Our results indicate that: (1) these species do not have planktonic post-metamorphic stages, (2) larvae typically arrive to the intertidal zone at a size 80-150 µm larger than the largest planktonic larva, which based on growth rates, corresponds to a 3-20 d delay, (3) there are no differences in pediveliger sizes between different algal substrates, mussel beds, or artificial collectors, and (4) there is no evidence that larvae metamorphose in the intertidal and grow in alternative habitat before relocation to mussel beds. In 2 summers, daily settlement of both species was tightly and positively associated with wave height, despite large inter-annual variability in wind conditions. Our results reject the primary-secondary settlement hypothesis and support a new settlement model in which, after metamorphosis beyond the surf zone, the negatively buoyant settlers become semi-benthic and readily sink to the bottom. There, they can be transported onshore through the surf-zone by wave-driven near-bed transport. The process of tumbling under the surf may take from a few hours to several days, with larvae arriving at the shoreline in a wide range of sizes at any given time. For some larvae, relocation continues in the intertidal zone for months.

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Spatial synchrony in the recruitment of intertidal invertebrates along the coast of central Chile

Cited by 41 publications

References 39 publications

Variabilidad espacial y temporal del suministro larval de mitílidos en el Seno de Reloncaví, sur de Chile

Variabilidad espacial y temporal del suministro larval de mitílidos en el Seno de Reloncaví, sur de Chile

Shelf and estuarine transport mechanisms affecting the supply of competent larvae in a suite of brachyuran crabs with different life histories

Tumbling under the surf: wave-modulated settlement of intertidal mussels and the continuous settlement-relocation model

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