Distribution of whitemouth croaker (Micropogonias furnieri, Desmarest 1823) larvae in the Río de la Plata estuarine front

Braverman, Mara; Marcelo, Eduardo; Gagliardini, Domingo A.; Rivarossa, Martín

doi:10.1016/j.ecss.2009.02.018

Cited by 35 publications

(28 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The Río de la Plata fish assemblage is also dominated by M. furnieri, which begins its life cycle when spawning in theturbidity front between November and February (ACUÑA et al, 1996;ACHA et al, 1999;BRAVERMAN et al, 2009). The age groups of M. furnieri occupy different habitats in the Río de la Plata estuary during the year, as determined by environmental factors (JAUREGUIZAR et al, 2003).…”

Section: Species Composition and Size Structurementioning

confidence: 99%

“…In the Rio de la Plata, fishery species (e.g. Micropogonias furnieri, Cynoscion guatucupa, Macrodon ancylodon, Mugil platanus, Urophycis brasiliensis and Brevoortia aurea) have their spawning and breeding area (ACUÑA et al, 1996(ACUÑA et al, , 2000MACCHI et al, 1996MACCHI et al, , 2003ACHA et al, 1999;VIZZIANO et al, 2001;BRAVERMAN et al, 2009). Juveniles and larvae of, e.g., M. furnieri (whitemouth croaker), a target of Uruguayan fisheries and second in economic importance, find refuge and food in this area, benefiting from the coastal productivity (ACUÑA et al, 1996;JAUREGUIZAR et al, 2003;NORBIS et al, 2006).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Fish assemblage in a temperate estuary on the uruguayan coast: seasonal variation and environmental influence

2010

View full text Add to dashboard Cite

A B S T R A C TThe seasonal dynamics of the fish community in the Pando estuary on the Uruguayan coast were studied in relation to environmental sampled monthly between May 2002 and June 2003. Individuals collected were identified, and classified into stages (juveniles, adults) and functional groups. Relationships between community dynamics and environmental variables were evaluated using uniand multivariate techniques. Twenty-one species, mostly freshwater stragglers, estuarine and marine migrants were collected. The most abundant species were Micropogonias furnieri, Mugil platanus, Paralichthys orbignyanus and Brevoortia aurea and were represented by juveniles. The community varied seasonally with rapid shifts in spring and autumn associated with changes in temperature and salinity. Significant correlations between abundance and temperature may be related to the timing of life cycle events. In this estuary, the salinity appears to play a key role in the functional structure and in the use of the habitat by juveniles. This is relevant for the definition of estuaries as nursery areas: this definition is context-dependent and is determined by the salinity conditions. R E S U M OFoi estudado a dinâmica sazonal da comunidade de peixes em relação as variáveis ambientais do estuário Pando, localizado na costa uruguaia. Os peixes foram amostrados mensalmente entre maio de 2002 e junho de 2003. Os indivíduos coletados foram identificados e classificados em estágios (jovens, adultos) e grupos funcionais. Relações entre a dinâmica da comunidade e as variáveis ambientais foram avaliadas utilizando-se técnicas uni-e multivariada. Vinte e uma espécies foram coletadas, principalmente visitantes de água doce, estuarinas e marinhas migratórias, sendo as mais abundantes e representadas por juvenis: Micropogonias furnieri, Mugil platanus, Paralichthys orbignyanus e Brevoortia aurea. A comunidade variou sazonalmente com rápidas mudanças na primavera e no outono, associadas à variações de temperatura e salinidade. Correlações significativas entre abundância e temperatura parecem estar relacionadas com a sincronizaçao de eventos dos ciclos de vida. Neste estuário a salinidade parece desempenhar um papel-chave na estrutura funcional e uso do habitat por juvenis. Este fato é relevante para a definição dos estuários como áreas de criadouro e pela influencia da salinidade sobre o ciclo da ictiofauna local.

show abstract

Section: Species Composition and Size Structurementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Fish assemblage in a temperate estuary on the uruguayan coast: seasonal variation and environmental influence

2010

View full text Add to dashboard Cite

show abstract

“…1) (Macchi and Christiansen, 1996; Acha et al. , 1999), which is where their larvae are retained (Braverman et al. , 2009).…”

Section: Introductionmentioning

confidence: 99%

“…, 1999). Dark grayed area shows spatial pattern of larvae distribution (redrawn from Braverman et al. , 2009).…”

Section: Introductionmentioning

confidence: 99%

Climate‐induced year‐class fluctuations of whitemouth croaker Micropogonias furnieri (Pisces, Sciaenidae) in the Río de la Plata estuary, Argentina–Uruguay

Marcelo

Simionato

Carozza

et al. 2011

Fisheries Oceanography

View full text Add to dashboard Cite

The whitemouth croaker, Micropogonias furnieri, is exploited by coastal fisheries in the Plata estuary. Its age structure shows the predominance of certain year classes, which are indicative of recruitment variability. The estuary is affected by river discharge variations associated with climatic signals (El Niño Southern Oscillation and others). We hypothesize that recruitment may correlate: (i) negatively with runoff (low runoff would promote the stronger retention of ichthyoplankton); (ii) positively with temperature (higher temperatures should enhance larvae survivorship and/or expand the spawning season); and (iii) positively with the wind zonal component (stronger onshore winds should facilitate the retention of ichthyoplankton). A time series of the relative cohort strengths was constructed for the 1938–2000 period from the age frequencies based on otolith readings. We performed a spectral analysis of the biological and physical series, and we searched for co‐movements between them, which suggested the presence of mechanistic links. The results showed co‐movements for recruitment, runoff and air temperature series at approximately 6.5, 3.4 and 2.4 yr; the temperature reinforced the runoff effects on recruitment at the 6.5‐yr peak, and it weakened them at the 3.4‐ and 2.4‐yr peaks. Wind variability was not relevant for the time scales studied. To explore the mechanisms of retention, we modeled the effects of the runoff fluctuations on the dispersal of the eggs. Both the statistical and modeling results supported the hypothesis that the effects of extreme river discharges on retention may regulate croaker recruitment by promoting high (low) recruitment during low (high) discharge periods.

show abstract

“…Its annual fecundity in the La Plata River Estuary (LPRE), as estimated by integrating successive batches in a spawning season, attained 3 to 7 million eggs annually (Macchi et al, 2003). Eggs and larvae are retained in the maximum turbidity zone of the salinity front and benefit from food accumulation, shelter against predators and closeness to the main nursery ground (Braverman et al, 2009). In southern Brazil, spawning occur also from spring to summer (Haimovici & Ignacio, 2005) in coastal waters and pelagic eggs and larvae are carried passively into the Patos Lagoon Estuary (PLE) where they recruit to the bottom with 20-30 mm total length (Weiss, 1981) and feed actively on infauna and epifauna as juveniles (Gonçalves et al, 1999;Costa et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Stocks and management units of Micropogonias furnieri (Desmarest, 1823) in southwestern Atlantic

Haimovici¹,

Cardoso²,

Unpierre³

2016

lajar

View full text Add to dashboard Cite

ABSTRACT. The whitemouth croaker Micropogonias furnieri is a demersal coastal and estuarine sciaenid fish intensely exploited by small and large scale fisheries in Brazil, Uruguay and Argentina between 22° and 40°S. To study the stocks structure of the whitemouth croaker along southeastern (SEB) and southern Brazil (SB) between 22°28' and 33°53'S, morphometric, meristic and growth data were collected during a bottom trawl survey. Consistent differences between different latitudes were not observed neither for the univariate comparisons of the number of gill rakers and dorsal and pectoral fin rays nor for five morphometric measurements. A principal component analysis of the five morphometric measures did not show a geographical grouping pattern. However, the age structure and growth differed significantly between south and north of Cape Santa Marta Grande (29•S). Former references and this study support the existence of two independent stocks of whitemouth croaker in southeastern and southern Brazil and diverse published studies indicate some degree of mixture between fishes spawning along southern Brazil, Uruguay and Argentina. In terms of access of the fleets there are three jurisdictions: along SB and SEB, where only Brazilian boats fish, in the common fishery zone of Uruguay and Argentina where both countries fish and south of 39ºS, where only Argentinian boats can fish but where the whitemouth croaker is not an important target. Efficient management requires the identification of management units based in stocks structure, life history, distribution of the fisheries and jurisdictions. When all these factors are taken into account, excluding local coastal small scale fisheries management, three geographical management units were identified in the shared waters of Argentinian and Uruguayan waters, southern Brazil and southeastern Brazil. Keywords: whitemouth croaker, stock identification, populations, geographic variation, morphometry, growth, Brazil.Stocks y unidades de manejo de la corvina Micropogonias furnieri (Desmarest, 1823) en el Atlántico sudoccidental RESUMEN. La corvina Micropogonias furnieri es un pez demersal costero y estuarino de la familia Sciaenidae abundante e intensamente explotado por flotas costeras e industriales entre el sureste de Brasil (22°S) y el norte de Argentina (40°S). Para el estudio de la estructura de los stocks de la corvina blanca a lo largo del sureste y sur de Brasil, se obtuvieron datos morfométricos, merísticos y de crecimiento a lo largo de la costa sur (SB) y sudeste (SEB) de Brasil entre las latitudes 22º28'S y 33º53'S. No se encontraron diferencias significativas entre las diferentes latitudes de pesca en el número de radios branquiales, rayos de las aletas dorsal y pectoral, ni para las cinco medidas morfométricas. El análisis de componentes principales de las cinco mediciones morfométricas no mostró un patrón de agrupación geográfica. Sin embargo, la estructura de edad y crecimiento difirió significativamente entre el sur y norte del Cabo Santa Marta Grande (29°S)....

show abstract

Distribution of whitemouth croaker (Micropogonias furnieri, Desmarest 1823) larvae in the Río de la Plata estuarine front

Cited by 35 publications

References 27 publications

Fish assemblage in a temperate estuary on the uruguayan coast: seasonal variation and environmental influence

Fish assemblage in a temperate estuary on the uruguayan coast: seasonal variation and environmental influence

Climate‐induced year‐class fluctuations of whitemouth croaker Micropogonias furnieri (Pisces, Sciaenidae) in the Río de la Plata estuary, Argentina–Uruguay

Stocks and management units of Micropogonias furnieri (Desmarest, 1823) in southwestern Atlantic

Contact Info

Product

Resources

About