Parental effects in the European sardine Sardina pilchardus

Riveiro, I.; Guisande, Cástor; Maneiro, Isabel; Vergara, Alba Ruth

doi:10.3354/meps274225

Cited by 36 publications

(33 citation statements)

References 58 publications

(56 reference statements)

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“…Thus, adults were likely to have influenced the outcome of selective events through maternal contributions to larval size. Similar evidence for parental contributions to survivorship has been documented for a tropical reef fish by Vigliola & Meekan (2002), while, in clupeids, Riveiro et al (2004) found that adult European sardines Sardina pilchardus were capable of enhancing the survival of hatching larvae by altering the biochemical composition of eggs during the spawning season. However, the latter study did not investigate whether variations in parental investment in eggs influenced mortality within cohorts.…”

Section: Discussionmentioning

confidence: 62%

Bigger is better: size-selective mortality throughout the life history of a fast-growing clupeid, Spratelloides gracilis

Meekan¹,

Vigliola²,

Hansen³

et al. 2006

Mar. Ecol. Prog. Ser.

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Resale or republication not permitted without written consent of the publisherMar Ecol Prog Ser 317: [237][238][239][240][241][242][243][244] 2006 in field studies has been extremely difficult (Hare & Cowen 1997). For this reason, laboratory experiments have been used to investigate the relative importance of size and age (Leggett & DeBlois 1994). However, the laboratory approach suffers from complications of the artificial constraint of animals within tanks and the focus by researchers on only a portion of the 'predation sequence' (Fuiman 1989), typically predator capture success (Fuiman & Magurran 1994). For logistical reasons, experimental studies generally only examine the interaction between a single species and size class of predator and its prey (Litvak & Leggett 1992, Pepin et al. 1992, Taylor 2003, whereas, in the field, larval fish inhabit an environment that contains numerous species of predators of a great range of sizes. The likelihood of predation for individual members of a cohort will reflect the cumulative effects of all size classes and species of predators within the pelagic environment (Bailey & Houde 1989, Paradis et al. 1996.As the number of predators to which fish are susceptible declines with increasing size (Bailey & Houde 1989), the growth-predation hypothesis predicts that the importance of selective mortality should decline as individuals grow through larval and juvenile phases to become adults. This idea is difficult to test, as it requires representative collections of the same cohort of fish at successive life-history stages, each of which may take months or even years to complete. Furthermore, larvae, juveniles and adults can occupy very different habitats, each entailing specialised gear to attain representative samples. Consequently, no study has been able to examine the relative importance of selective mortality throughout the entire life cycle of a marine fish.Although much of the evidence on the importance of the growth-predation hypothesis has been derived from temperate environments, an increasing number of studies demonstrate that these processes also operate in tropical systems (Searcy & Sponaugle 2001, Bergenius et al. 2002, Vigliola & Meekan 2002, Wilson & Meekan 2002, Meekan et al. 2003, Hoey & McCormick 2004. The apparent ubiquity of sizeselective mortality in fish populations allows predictions of the hypothesis to be tested on tropical fish that are relatively fast growing compared to temperate equivalents. In some of these tropical species, life cycles are completed in only a few months, rather than the years or even decades that are required in temperate environments.The sprat Spratelloides gracilis is a good example of a fast-growing tropical fish. It is an ideal candidate for tests of the predictions of the growth-predation hypothesis, as representative samples of the same cohort can be captured at different stages of a life history that only lasts a maximum of 4 mo (Milton et al. 1991). Here, we use otolith analysis to back-calculate age, size and growth...

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Section: Discussionmentioning

confidence: 62%

Bigger is better: size-selective mortality throughout the life history of a fast-growing clupeid, Spratelloides gracilis

Meekan¹,

Vigliola²,

Hansen³

et al. 2006

Mar. Ecol. Prog. Ser.

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“…However, the DT revealed that the peaks of fish eggs by themselves do not guarantee a high occurrence of fish larvae. This may be related to other factors, such as temperature and predation, which are the main causes of mortality in fish eggs (Riveiro et al 2004). …”

Section: Discussionmentioning

confidence: 99%

Environmental factors affecting larval fish community in the salt marsh area of Guadiana estuary (Algarve, Portugal)

Gonçalves¹,

Correia²,

Atanasova³

et al. 2015

Sci. Mar.

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Summary: Salt marsh areas in the Guadiana estuary are important nursery sites for many fish species of commercial and recreational value. More effective protection measures should be adopted as the area is highly affected by anthropogenic and natural threats. Studying larval fish communities in these impacted nursery areas will be relevant to the management of local ecosystems and to larval fish ecology in general. Spatial and seasonal distribution and the effect of environmental factors on the larval fish community of this ecosystem were studied for one year (April 2010 to March 2011). Larvae were sampled monthly in parallel with phytoplankton and zooplankton. Hydrological data and physical parameters were monitored. A decision tree model was used to assess the influence of environmental factors on the larval fish community. A total of 130 larvae and 1171 eggs were caught. Diplodus sargus, Sardina pilchardus, and Pomatoschistus microps were the most abundant larval fish species. The peaks of fish larvae abundance occurred in March and April. The output of the model demonstrates that the abundance of larval fish is determined by the abundance of eggs, zooplanktonic food, and water flood and flow. This study shows the importance of the Guadiana salt marsh as an area for fish nursery and highlights the need for conservation of this area.Keywords: larval fish; salt marsh; Guadiana estuary; fish eggs; food availability; flooding events; river flow.Factores ambientales que afectan a la comunidad de larvas de peces en las marismas del estuario del Guadiana (Algarve, Portugal) Resumen: Las zonas de marisma en el estuario del Guadiana constituyen zonas de cría importantes para muchas especies de peces de valor comercial y recreativo. Deberían ser adoptadas unas medidas de protección más efectivas ya que el área está altamente afectada por amenazas tanto antropogénicas como naturales. El estudio de las comunidades de larvas de pez en estas áreas de cría más impactadas será relevante para la gestión del ecosistema local y para la ecología de las larvas de pez en general. La distribución espacial y estacional, y el efecto de factores ambientales en las comunidades de larvas de pez de este ecosistema fueron estudiados durante un año (abril de 2010-marzo de 2011). El muestreo de las larvas fue realizado mensualmente en paralelo con el de fitoplancton y zooplancton. También fueron monitoreados datos hidrológicos y parámetros físicos. Un modelo de Árbol de Decisión fue utilizado para evaluar la influencia de factores ambientales en la comunidad de larvas de pez. Fueron recogidos un total de 130 larvas y 1171 huevos. Diplodus sargus, Sardina pilchardus y Pomatoschistus microps fueron las especies más abundantes. Los picos de abundancia de larvas de pez ocurrieron en marzo y abril. Los resultados del modelo demuestran que la abundancia de larvas de pez viene determinada por la abundancia de huevos, la comida zooplanctónica, los eventos de inundación y el caudal del río. Este estudio muestra la importancia de las marismas del Gua...

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“…Lipids and proteins are 2 biochemical compounds that affect fish egg quality, and reports indicate that the lipid and protein contents of eggs vary from the onset of the spawning season to its end. Off the Iberian Peninsula, concentrations of lipids, carbohydrates, and proteins decrease in Sardina pilchardus eggs as the spawning season progresses from winter to mid-spring, suggesting that better-quality eggs are spawned at low winter temperatures and when larval food is less abundant, thereby enhancing larval growth and survival (Riveiro et al 2000(Riveiro et al , 2004.…”

Section: Introductionmentioning

confidence: 99%

Fatty acids in eggs of anchoveta Engraulis ringens during two contrasting winter spawning seasons

Castro¹,

Claramunt²,

González³

et al. 2010

Mar. Ecol. Prog. Ser.

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We assessed the fatty acid (FA) composition of anchoveta eggs collected from the plankton along with female anchoveta reproductive traits and environmental conditions during peak winter spawning in 2005 and 2007. Environmental conditions differed markedly between years at 3 continental shelf stations off Talcahuano, Chile, with a warmer, fresher water column in 2005 and a colder, saltier one in 2007. We confirmed differences in sea surface temperature, measured both at the coastal egg collection stations and using satellite images over a broader area, caused by south

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Parental effects in the European sardine Sardina pilchardus

Cited by 36 publications

References 58 publications

Bigger is better: size-selective mortality throughout the life history of a fast-growing clupeid, Spratelloides gracilis

Bigger is better: size-selective mortality throughout the life history of a fast-growing clupeid, Spratelloides gracilis

Environmental factors affecting larval fish community in the salt marsh area of Guadiana estuary (Algarve, Portugal)

Fatty acids in eggs of anchoveta Engraulis ringens during two contrasting winter spawning seasons

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