Distribution and abundance of skipjack (Katsuwonus pelamis) larvae in eastern Brazilian waters

Matsuura, Yasunobu

doi:10.1590/s0373-55241982000200002

Cited by 20 publications

(22 citation statements)

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“…II), permitiram comprovar a presença de todas as fases do ciclo de vida no Saco dos Limões. Nas coletas realizadas na primavera, as densidades de ovos e larvas de C. edentulus mostraram-se muito mais expressivas, confirmando a elevação das densidades do ictioplâncton nesta época devido ao incremento nos processos produtivos, observada também por MATSUURA & SATO (1981), MATSUURA (1986) e LASKER (1984. A distribuição dos estádios de maturação gonadal da espé-cie ao longo do tempo confirma os dados de índice gonadossomático e fator de condição, ocorrendo um pico do estádio 3 em período de primavera, tanto em 1999 como 2000 (Fig.…”

Section: Resultsunclassified

Dinâmica populacional, biologia reprodutiva e o ictioplâncton de Cetengraulis edentulus Cuvier (Pisces, Clupeiformes, Engraulidae) na enseada do Saco dos Limões, Florianópolis, Santa Catarina, Brasil

2005

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Os dados utilizados neste estudo são originários de um monitoramento ambiental realizado na enseada do Saco dos Limões, Florianópolis, Santa Catarina, Brasil. Neste monitoramento foram coletadas amostras da ictiofauna, sendo separados para análise um total de 3820 exemplares de Cetengraulis edentulus Cuvier, 1828, capturados em 17 coletas, no período compreendido entre julho de 1999 e abril de 2001. A análise dos dados permitiu estimar parâmetros populacionais e reprodutivos importantes como o comprimento de primeira maturação (118 mm para sexos grupados, 112 e 118 mm para machos e fêmeas, respectivamente), as distribuições de freqüências de comprimento, a relação peso-comprimento (Pt = 0,0000003 x Ct 3,67º8), a proporção sexual ao longo do tempo, a variação sazonal dos estádios de maturação gonadal, o índice gonadossomático, o fator de condição e o fator de condição somático, o ciclo reprodutivo e o período de desova, sendo também determinada a participação da espécie no ictioplâncton. Foram determinadas as correlações entre os parâmetros biológicos e os ambientais de temperatura e salinidade da água, superficial e de fundo. Constatou-se que a espécie utiliza o ambiente de estudo ao longo de todo seu ciclo de vida, tanto para reprodução quanto para a alimentação e o crescimento, e está estrategicamente adaptada às condições ambientais e biológicas da área de estudo.

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Section: Resultsunclassified

Dinâmica populacional, biologia reprodutiva e o ictioplâncton de Cetengraulis edentulus Cuvier (Pisces, Clupeiformes, Engraulidae) na enseada do Saco dos Limões, Florianópolis, Santa Catarina, Brasil

2005

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“…A review of the available literature on the subject showed that, up to the present time, it has been cited for the Parana coast 14 species of fish larvae in the region of the continental shelf (MATSUURA 1977;MATSUURA & SATO 1981 ;MA TSUURA & KA TSURAGA WA 198 J;VALENTIN et at. 1994) and 16 species in the estuarine region (CARVALHO 1945;SINQUE 1989;ALMEIDA & SPACH 1992).…”

Section: Discussionmentioning

confidence: 99%

Larval fish in the surf zone of Pontal do Sul beach, Pontal do Paraná, Paraná, Brazil

1999

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ABSTRACT. A total of6,575 larvae in the pre flexion, flexion and post-flexion stages of 15 families, 26 genera and 29 species were captured in the surf zone of Pontal do Sui beach, Parana, Brazil. Samples of the families Gerreidae and Scianidae predominated and larvae of Eucinostomus argenteus (Baird&Girard, 1854) (Agassiz, 1829) were the most dominant species. Greater abundance of larvae was observed during the summer, followed by winter and in a less extent during spring and autumn. The number of species was greater in the summer, and there were no significant differences in the rest of the seasons.

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“…Previous studies showed highest abundance of E. alleteratus and Auxis spp. eggs outside cyclonic eddies in open waters near southern Brazil (Matsuura & Sato 1981) and in the eastern Pacific (Klawe 1963 ; M) in anticyclonic regions (AR), anti cyclonic boundaries (AB), cyclonic regions (CR), cyclonic boundaries (CB) and common waters (CW) for Thunnus thynnus, Euthynnus alleteratus, Auxis spp., Thunnus spp., and Coryphaena spp. Calculated from altimetry derived fields and spring sampling frombroader habitat preferences in the GOM than T. thynnus (Weng et al 2009, Teo & Block 2010, including higher tolerances for warm features , Teo & Block 2010, such as the LC and warm LC rings.…”

Section: Discussionmentioning

confidence: 99%

Varying mesoscale structures influence larval fish distribution in the northern Gulf of Mexico

David

Bringas²,

Goñi³

et al. 2012

Mar. Ecol. Prog. Ser.

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The variability of mesoscale circulation structures in the Gulf of Mexico (GOM) was examined using satellite altimeter data collected between 1992 and 2008, and linkages between ocean circulation and the spatial distribution of larval fish were assessed. The abundance and distribution of the larvae of 5 pelagic fish taxa (Auxis spp., Euthynnus alleteratus, Thunnus thynnus, other Thunnus spp., and Coryphaena spp.) were estimated from surveys conducted by the National Oceanic and Atmospheric Administration National Marine Fisheries Service each spring between 1993 and 2007. We observed a tendency for higher northward extension of the Loop Current (LC) during spring each year, with maximum northern penetration in summer, although the exact location of the LC varied from year to year. Generally, higher total larval abundances occurred during years of high northward penetration in a region that was crossed by the LC during its excursions. However, the interannual variability of the LC was not mirrored in a general increase or decrease of larval fish densities in the water masses out of the LC front. Further, the results show that larvae of T. thynnus and Auxis spp. were more abundant within the boundaries of anticyclonic features (usually between 148 to 158 cm of sea surface height) and within GOM common waters, defined as the background waters in between the boundaries of mesoscale features. Our findings suggest that the position and strength of anticyclone mesoscale features in the GOM define a favorable spawning habitat for the species examined. KEY WORDS: Fisheries oceanography · Mesoscale variability · Fronts and eddies · Loop Current · Ichthyoplankton distribution · Thunnus thynnusResale or republication not permitted without written consent of the publisher

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Distribution and abundance of skipjack (Katsuwonus pelamis) larvae in eastern Brazilian waters

Cited by 20 publications

References 0 publications

Dinâmica populacional, biologia reprodutiva e o ictioplâncton de Cetengraulis edentulus Cuvier (Pisces, Clupeiformes, Engraulidae) na enseada do Saco dos Limões, Florianópolis, Santa Catarina, Brasil

Dinâmica populacional, biologia reprodutiva e o ictioplâncton de Cetengraulis edentulus Cuvier (Pisces, Clupeiformes, Engraulidae) na enseada do Saco dos Limões, Florianópolis, Santa Catarina, Brasil

Larval fish in the surf zone of Pontal do Sul beach, Pontal do Paraná, Paraná, Brazil

Varying mesoscale structures influence larval fish distribution in the northern Gulf of Mexico

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