Benthic megafauna communities under the influence of the South Atlantic Central Water intrusion onto the Brazilian SE shelf: A comparison between an upwelling and a non-upwelling ecosystem

Leo, Fabio C. De; Pires-Vanin, Ana Maria Setúbal

doi:10.1016/j.jmarsys.2006.02.002

Cited by 106 publications

(59 citation statements)

References 28 publications

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“…The~10°C drop in bottomwater temperature registered during SACW upwelling can be critical for the metabolism of marine invertebrates (Gillooly et al, 2001;Kristensen, 1983). Low temperatures are associated with high densities of relatively large top-carnivores of megafauna and may also prevent the occurrence of stenothermic macrofaunal species in the SE Brazilian inner shelf (De Léo and Pires-Vanin, 2006;Pires, 1992;Pires-Vanin, 1993). The temperature variation in Ubatuba region may therefore explain some of the changes in benthic macrofaunal composition.…”

Section: Sacw Upwelling Effects On the Structure Of Benthic Macrofaunamentioning

confidence: 99%

“…animals retained by a 0.5 mm mesh) are important components of the food-webs in coastal marine ecosystems. They assimilate energy contained in organic detritus and thereby act as a second trophic level transferring energy from primary production to animals of higher trophic levels, such as commercially important benthic megafauna including prawns, crabs and demersal fishes (De Léo and Pires-Vanin, 2006;Rocha et al, 2003). In tropical and subtropical zones, marine ecosystems function under meso-oligotrophic conditions, and the limited input of organic detritus derived from phytoplankton greatly affects the structure of benthic macrofaunal communities.…”

Section: Introductionmentioning

confidence: 99%

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Effects of coastal upwelling on the structure of macrofaunal communities in SE Brazil

Quintana

Bernardino

Moraes

et al. 2015

Journal of Marine Systems

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Section: Sacw Upwelling Effects On the Structure Of Benthic Macrofaunamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effects of coastal upwelling on the structure of macrofaunal communities in SE Brazil

Quintana

Bernardino

Moraes

et al. 2015

Journal of Marine Systems

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“…These conditions are extremely important for hermit crabs of the genus Dardanus (Paulson, 1875), as they pass through 8 zoeal stages before reach the megalopa stage, and should spend much time (approximately 40 days) in plankton before to metamorphoses (Hebling & Mansur, 1995). De Léo & Pires-Vanin (2006) verified that the northern coast of the State of São Paulo littoral shows an own productivity regime influenced by the SACW action, that provides food for larvaes favoring conditions for the breeding period.…”

Section: Discussionmentioning

confidence: 99%

Comparative analysis of populational structure of the Hermit Crab Dardanus insignis (Anomura: Diogenidae) in a Subtropical Area of the Brazilian Coast

Frameschi¹,

Andrade²,

Fransozo³

et al. 2013

Braz. J. Aquat. Sci. Technol.

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Analysis of populational structure of the hermit crab Dardanus insignis (Anomura: Diogenidae) near coastal islands in southeastern Brazil: a study of 14 years ago. Braz. J. Aquat. Sci. Technol. 17(2):17-25. eISSN 1983-9057. DOI: 10.14210/bjast.v17.n2.p17-25. The goal of this paper was the comparison of the population structure and the reproductive period of Dardanus insignis from two islands in a subtropical area of the Brazilian coast. A total of 795 hermit crabs were obtained at Couves Island, being 56.4% males, 27.3% non-ovigerous females, 3.8% ovigerous females, and 12.5% juveniles; at Mar Virado Island a total of 336 specimens were captured, being 59.5% males, 31.8% non-ovigerous females, 4.7% ovigerous females, and 4.5% juveniles. The sex-ratio was statistically different from 1:1 in favor of males during all study period in both sites. The reproductive period is seasonal in both sites and the juveniles' recruitment occurred at the first two winter months. Only males were found in the largest size classes. Despite of the distance and environmental and biological features of each site, both populations of D. insignis showed similar characteristics.

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“…Besides their commercial importance, the shrimps are also considered structural elements of benthic communities and play a role in predation and competition as well in bioturbation of superficial sediments (DELEO and PIRES-VANIN, 2006). Thus, the disordered fishing and inadequate management plans can disorganize biological communities part of these organisms, often irreversibly breaking trophic links (MANTELATTO and FRANSOZO, 1999).…”

Section: Introductionmentioning

confidence: 99%

Avaliação do plano de manejo de camarões peneídeos na plataforma continental de Sergipe, Brasil

Santos¹,

Silva²,

Costa

et al. 2017

Bol. Inst. Pesca

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RESUMOEste estudo avaliou se a reprodução e o recrutamento temporal e espacial das principais espécies de camarões marinhos explotados no Estado de Sergipe (Xiphopenaeus kroyeri, Farfantepenaeus subtilis e Litopenaeus schmitti) estão sendo protegidos, em comparação com normativa MMA nº 14, de 14 de outubro de 2004. As coletas foram realizadas de setembro/2013 a agosto/2014 na plataforma continental de Sergipe, em nove transectos, distribuídos nas profundidades de 5, 15 e 30m, utilizando um barco camaroeiro equipado com rede de arrasto de portas. Após as coletas os indivíduos foram identificados ao nível específico, subamostrados, sexados, mensurados quanto ao comprimento da carapaça e classificados quanto à morfologia gonadal. O recrutamento e a reprodução das três espécies ocorreram continuamente ao longo do ano, apresentando picos de intensidade. Indivíduos reprodutivos e juvenis foram mais abundantes nos 30m para F. subtilis, enquanto para X. kroyeri e L. schmitti foram mais abundantes nos 5m e 15m. A atual instrução normativa protege parcialmente as categorias reprodutivas e juvenis dessas espécies, principalmente F. subtilis. Portanto, sugere-se a adequação dos períodos de defeso para as épocas de reprodução e recrutamento de F. subtilis, uma vez que a área estipulada pelo IBAMA já protege as demais espécies ao longo do ano.Palavras chave: Xiphopenaeus; Farfantepenaeus; Litopenaeus; recrutamento; período reprodutivo; pesca. ABSTRACTThis study evaluated if the temporal and spatial reproduction and recruitment of the main species of marine shrimps exploited in the state of Sergipe (Xiphopenaeus kroyeri, Farfantepenaeus subtilis, and Litopenaeus schmitti) are being protected, in relation to the closed season based on the normative instruction MMA n° 14, of October 14 th 2004. The samples were collected monthly from September 2013 to August 2014 at the continental shelf of Sergipe, in nine transects, distributed in the depths of 5, 15, and 30 m using a shrimping boat equipped with double ring nets. After sampling, we identified shrimps to the species level; subsampled, sexed them, measured carapace length, and observed the gonads. Recruitment and reproduction in the three species occur continuously, albeit with intensity peaks. Regarding space, reproductive individuals and recruits were more abundant at 30 m in the case of F. subtilis, while for X. kroyeri and L. schmitti, higher abundances were found at 5 and 15 m. The current normative instruction partially protects the reproductive and juveniles categories of these species, mainly F. subtilis. Thus, we suggest closed seasons at breeding and recruitment seasons of F. subtilis, since the area set by IBAMA already protects other species throughout the year.

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Benthic megafauna communities under the influence of the South Atlantic Central Water intrusion onto the Brazilian SE shelf: A comparison between an upwelling and a non-upwelling ecosystem

Cited by 106 publications

References 28 publications

Effects of coastal upwelling on the structure of macrofaunal communities in SE Brazil

Effects of coastal upwelling on the structure of macrofaunal communities in SE Brazil

Comparative analysis of populational structure of the Hermit Crab Dardanus insignis (Anomura: Diogenidae) in a Subtropical Area of the Brazilian Coast

Avaliação do plano de manejo de camarões peneídeos na plataforma continental de Sergipe, Brasil

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Benthic megafauna communities under the influence of the South Atlantic Central Water intrusion onto the Brazilian SE shelf: A comparison between an upwelling and a non-upwelling ecosystem

Cited by 106 publications

References 28 publications

Effects of coastal upwelling on the structure of macrofaunal communities in SE Brazil

Effects of coastal upwelling on the structure of macrofaunal communities in SE Brazil

Comparative analysis of populational structure of the Hermit Crab Dardanus insignis (Anomura: Diogenidae) in a Subtropical Area of the Brazilian Coast

Avaliação do plano de manejo de camarões peneí­­deos na plataforma continental de Sergipe, Brasil

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Avaliação do plano de manejo de camarões peneídeos na plataforma continental de Sergipe, Brasil