Seasonal variation in fish larvae at the entrance of Guanabara Bay, Brazil

Castro, Márcia Salustiano de; Bonecker, Ana Cristina Teixeira; Valentin, Jean Louis

doi:10.1590/s1516-89132005000100016

Cited by 35 publications

(29 citation statements)

References 14 publications

(22 reference statements)

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“…Ichthyoplankton composition was similar to other Brazilian estuarine and coastal systems (Muelbert & Weiss, 1991;Castro & Bonecker, 1996;Ekau et al, 1999;Tovar-Faro & Bonecker, 2000;Barletta-Bergan et al, 2002a;Barletta-Bergan et al, 2002b;Joyeux et al, 2004;Mafalda Jr. et al, 2004;Castro et al, 2005;Chagas et al, 2006). The number of ichthyoplankton families (12) found in the area was similar to the number of adult fish families sampled, although Haemulidae, Blenniidae and Syngnathidae were not captured as adults (Ferreira & Freire, unpublished data).…”

Section: Discussionsupporting

confidence: 79%

“…Two-way ANOVA interaction results for log-abundance of (a) engraulid and (b) mugilid larvae. channel area of laguna dos Patos, Caeté estuary and Guanabara Bay, ichthyoplankton communities were also dominated by Sciaenidae (Muelbert & Weiss, 1991;BarlettaBergan et al, 2002a;Barletta-Bergan et al, 2002b;Castro et al, 2005), which was the fifth most abundant family in the present study. All those examples corroborated the fact that these families use inner coastal systems during their life cycle, despite of its dimension and water exchange mechanism with the sea.…”

Section: Discussionsupporting

confidence: 56%

“…Like in other estuarine systems (Muelbert & Weiss, 1991;Sánchez-Velasco et al, 1996;Tovar-Faro & Bonecker, 2000;Barletta-Bergan et al, 2002a;Joyeux et al, 2004;Castro et al, 2005) the community was dominated by engraulids and clupeids. Gobiid larvae, the third most abundant family in Ibiraquera Lagoon, were also important in the ichthyoplankton community in the southern Gulf of Mexico (Sánchez-Velasco et al, 1996) and in Vitória Bay (Joyeux et al, 2004).…”

Section: Discussionmentioning

confidence: 65%

“…Indeed, studies of ichthyoplankton carried out in Brazil have shown that fish larvae abundance, distribution and composition may have temporal and spatial patterns that are caused by physical factors such as rainfall and salinity (Barletta-Bergan et al, 2002a, 2002b and temperature (Muelbert & Weiss, 1991;Castro et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

“…Ekau et al, 1999;Tovar-Faro & Bonecker, 2000;Barletta-Bergan et al, 2002a;Franco & Muelbert, 2003;Freitas & Muelbert, 2004;Castro et al, 2005). However, coastal lagoons are also considered nursery areas for coastal fish (Sánchez-Velasco et al, 1996;Avendaño-Ibarra et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

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Spatial and temporal distribution of fish eggs and larvae in a subtropical coastal lagoon, Santa Catarina State, Brazil

2009

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This study investigated the variation in abundance, distribution and composition of ichthyoplankton in a lagoon in southern Brazil through the year and at different stations within the lagoon. Ibiraquera Lagoon is a shallow coastal lagoon connected to the sea by a semi-permanent sandbar. Ichthyoplankton samples were collected monthly from December 2003 to December 2004, with a 200 µm mesh net using horizontal surface hauls. A colder, drier period was detected, contrasting with warm months during which salinity varied depending on rainfall and whether the sandbar was open or closed. The mean abundance of ichthyoplankton over the study period was 459.6 ± 76.2 (SE) eggs · 100 m -3 and 63.6 ± 7.9 (SE) larvae · 100 m -3 , and they were present during all months. Significantly higher abundances of eggs and larvae were observed during warm months. The community was dominated by the family Engraulidae followed by Clupeidae, Gobiidae and Mugilidae. Engraulidae and Clupeidae were present throughout the year, with greater abundances in months with higher temperatures. Some coastal fish species spawn in Ibiraquera Lagoon, mainly near to the sandbar, demonstrating that the lagoon is a spawning area for coastal stock. We recommend the establishment of environmental procedures to promote the conservation of Ibiraquera Lagoon and its ichthyoplankton community.A abundância, distribuição e composição do ictioplâncton foram investigadas em uma lagoa no sul do Brasil durante um ano e em diferentes estações dentro da lagoa. A lagoa de Ibiraquera é uma lagoa costeira rasa, conectada ao mar através de uma barra semi-permanente. As amostras de ictioplâncton foram coletadas mensalmente entre dezembro de 2003 e dezembro de 2004, com uma rede cônico-cilíndrica de 200 µm de malha em arrastos horizontais e de superfície. Foi detectado um período frio e seco em contraste aos meses quentes e com variação na salinidade em função das chuvas e da barra estar aberta ou fechada. A abundância média do ictioplâncton, durante o período de estudo, foi de 459,6 ± 76,2 (SE) ovos · 100 m -3 e 63,6 ± 7,9 (SE) larvas · 100 m -3 , e ocorreram em todos os meses. As abundâncias de ovos e larvas foram significativamente maiores nos meses quentes. A comunidade foi dominada pela família Engraulidae seguida pelas famílias Clupeidae, Gobiidae e Mugilidae. As famílias Engraulidae e Clupeidae ocorreram principalmente nos meses com maiores temperaturas. Alguns peixes costeiros desovam dentro da lagoa, principalmente próximo a barra, evidenciando que a lagoa é uma área de desova para o estoque costeiro. Recomenda-se o estabelecimento de ações ambientais que promovam a conservação da lagoa de Ibiraquera e da comunidade ictioplanctônica.

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