Baltic sprat larvae: coupling food availability, larval condition and survival

Voss, R.; Clemmesen, Catriona; Baumann, Hannes; Hinrichsen, Hans Harald

doi:10.3354/meps308243

Cited by 61 publications

(55 citation statements)

References 41 publications

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“…In research on sprat larvae in the Bornholm Basin (Baltic Sea), Voss et al (2006) reported that stable but relatively high 10th percentile values of RD with increasing body size reflected a feeding environment with high copepod nauplii concentrations that was favorable for small, first-feeding sprat larvae in April and May. Lower 10th percentile values of RD occurred in July, suggesting a less selective environment in which both fast-and slow-growing larvae survived.…”

Section: Population Percentiles and Percentile Approachmentioning

confidence: 99%

“…In the Northwest Atlantic, Buckley et al (2010) identified 'windows for survival' of Atlantic cod and haddock larvae based upon seasonal and inter-annual differences in larval RD condition and prey abundance. Voss et al (2006) utilized sRD measurements to reveal size-specific 'windows of survival' for Baltic sprat larvae that were linked to the availability of suitable prey. These results support Cushing's 'matchmismatch' hypothesis (Cushing, 1974;Cushing, 1990) which emphasizes the key role of timing of prey production and its coincidence with early life stages of fish as a mechanism controlling recruitment in marine fishes.…”

Section: Perspectivementioning

confidence: 99%

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On the edge of death: Rates of decline and lower thresholds of biochemical condition in food-deprived fish larvae and juveniles

Meyer¹,

Caldarone

Chı́charo

et al. 2012

Journal of Marine Systems

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Gaining reliable estimates of how long fish early life stages can survive without feeding and how starvation rate and time until death are influenced by body size, temperature and species is critical to understanding processes controlling mortality in the sea. The present study is an across-species analysis of starvation-induced changes in biochemical condition in early life stages of nine marine and freshwater fishes. Data were compiled on changes in body size (dry weight, DW) and biochemical condition (standardized RNA-DNA ratio, sRD) throughout the course of starvation of yolk-sac and feeding larvae and juveniles in the laboratory. In all cases, the mean biochemical condition of groups decreased exponentially with starvation time, regardless of initial condition and endogenous yolk reserves. A starvation rate for individuals was estimated from discrete 75th percentiles of sampled populations versus time (degree-days, Dd). The 10th percentile of sRD successfully approximated the lowest, life-stage-specific biochemical condition (the edge of death). Temperature could explain 59% of the variability in time to death whereas DW had no effect. Species and life-stage-specific differences in starvation parameters suggest selective adaptation to food deprivation. Previously published, interspecific functions predicting the relationship between growth rate and sRD in feeding fish larvae do not apply to individuals experiencing prolonged food deprivation. Starvation rate, edge of death, and time to death are viable proxies for the physiological processes under food deprivation of individual fish pre-recruits in the laboratory and provide useful metrics for research on the role of starvation in the sea.

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Section: Population Percentiles and Percentile Approachmentioning

confidence: 99%

Section: Perspectivementioning

confidence: 99%

On the edge of death: Rates of decline and lower thresholds of biochemical condition in food-deprived fish larvae and juveniles

Meyer¹,

Caldarone

Chı́charo

et al. 2012

Journal of Marine Systems

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“…Eggs of both fish species are spawned in the deeper layers of the Central Baltic basins. While sprat larvae migrate to the surface for feeding, cod remains in the haline water (Voss et al, 2006). Our results indicate the reasons for their different feeding behaviour.…”

Section: Importance Of Zonation For Predator-prey Interactionsmentioning

confidence: 57%

Vertical zonation of the zooplankton community in the Central Baltic Sea in relation to hydrographic stratification as revealed by multivariate discriminant function and canonical analysis

Schulz

Möllmann²,

Hirche

2007

Journal of Marine Systems

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The vertical zonation of zooplankton in a deep central Baltic Sea basin was studied in relation to hydrography based on vertically resolved sampling. The study period covered different seasonal hydrographic conditions as well as inflow events of water masses from the North Sea, important for the physical condition of this marginal sea. By means of multivariate discriminant function and canonical analysis, we show a distinct vertical zonation of the zooplankton community in the water column. Three main habitats, which reflect the hydrographic situation, were identified with distinct differences in zooplankton composition: (1) the summer surface layer, bound by the thermocline at its lower rim; species inhabiting this layer are only seasonally abundant or forced to adjust to the cooler winter water; (2) the intermediate winter water, bound by the halocline from below and the thermocline or surface as the upper boundary; species dwelling in this layer face a reduced volume and are cut off from the high primary production when their habitat is limited from above by the summer thermocline; (3) the layer between the permanent halocline and the seafloor; the taxonomic composition in this layer shows no significant effect in relation to the observed inflows. The consequences of this zonation for trophodynamic interrelationships and advection processes are discussed.

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“…The postulate that larval survival improves when the distribution of larvae and that of their prey are closely related is now widely accepted and has indeed been demonstrated in some studies (Hartmann, 1983;McCormick and Molony, 1992). More generally, significant relationships between larval fish abundance and zooplankton density have been observed in a number of case studies and for particular larval fish species in temperate ecosystems (Brander et al, 2001;Pepin et al, 2003;Voss et al, 2006). However, in spite of its significant ecological relevance, our current knowledge on the relationships between total larval fish abundance and total zooplankton biomass or density is still limited (Sanvicente-Añorve et al, 2006).…”

Section: Introductionmentioning

confidence: 99%

Relative importance of water column vs zooplankton variables in the determination of late-stage larval fish assemblage structure in coastal waters of a coral reef lagoon

Carassou¹,

Ponton²

2009

Sci. Mar.

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SUMMARY:The relationship between fish larvae and their zooplanktonic prey has not been fully explored for late-stage larvae of coral-reef fish in lagoonal environments. However, compared to most temperate taxa, these larvae are characterized by strong sensory and swimming abilities, which may influence their feeding behaviour in the water column. The present study aims to determine the relative importance of the water column and zooplankton variables for the structure of pre-settlement larval fish assemblages within a single season in three bays of the coral reef lagoon of New Caledonia, southwest Pacific. The structure of larval assemblages was found to be explained better by water column variables in two out of the three bays examined. Zooplankton variables only played a role in one bay out of the three, probably due to the lower variability in the water column variables. Moreover, the relationship between total larval fish abundance and zooplankton density was not significant in any of the three bays. These results suggest that the relationship between late-stage coral-reef fish larvae and their prey: 1) is difficult to detect at small spatial and temporal scales, 2) is probably complex and non-linear, 3) depends on environmental conditions, and 4) probably varies between fish taxa.Keywords: late-stage coral-reef fish larvae, zooplanktonic prey, water column properties, bays, spatial and temporal scale. -La relación entre las larvas de peces y sus presas zooplanctónicas sigue siendo poco estudiada para las larvas en últimas fases de desarrollo de peces coralinos en ambientes lagunares. Además estas larvas se caracterizan por tener grandes habilidades natatorias y sensoriales respecto a la mayoría de peces en mares templados, habilidades que pueden influenciar su comportamiento alimenticio en la columna de agua. El presente estudio tiene como objetivo determinar la importancia relativa de las variables de la columna de agua y del zooplancton sobre la estructura de las larvas de peces próximas al asentamiento durante una única estación y en tres bahías de la laguna coralina de Nueva-Caledonia en el Pacífico sur. La estructura de los grupos de larvas de peces se explica mejor por las variables de la columna de agua en dos de las tres bahías estudiadas, pero las variables zooplanctónicas desempeñan un papel importante en la tercera bahía, seguramente debido a la mayor variabilidad de las condiciones de la columna de agua. La relación entre la abundancia total de las larvas de peces y la densidad total del zooplancton no fue significativa en ninguna de las tres bahías. Estos resultados sugieren que la relación entre las larvas de peces coralinos en última fase de desarrollo y sus presas es 1) difícilmente detectable a tan pequeña escala espacial y temporal, 2) probablemente compleja y no lineal, 3) variable según las condiciones medioambientales y 4) probablemente variable según los taxones.Palabras clave: larvas de peces coralinos en última fase de desarrollo, presas zooplanctónicas, propiedades de la columna de ...

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Baltic sprat larvae: coupling food availability, larval condition and survival

Cited by 61 publications

References 41 publications

On the edge of death: Rates of decline and lower thresholds of biochemical condition in food-deprived fish larvae and juveniles

On the edge of death: Rates of decline and lower thresholds of biochemical condition in food-deprived fish larvae and juveniles

Vertical zonation of the zooplankton community in the Central Baltic Sea in relation to hydrographic stratification as revealed by multivariate discriminant function and canonical analysis

Relative importance of water column vs zooplankton variables in the determination of late-stage larval fish assemblage structure in coastal waters of a coral reef lagoon

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