Fishes of Paranaguá Estuarine Complex, South West Atlantic

Abstract

Abstract:The objective of this work was to present an updated checklist of the currently known fishes in the Paranaguá Estuarine Complex (PEC) and provides comments on conservation status for the treated species. We used a large dataset derived from a pool of studies which have been conducted within there along the last 30 years. Each study was based on monthly samplings and conducted in several estuarine habitat; thus, the pool covers practically all estuarine habitats and takes into account the seasonal cycle in the system. The PEC ichthyofauna represents a mixture between that fauna typical from the tropical Brazilian coast and that with affinities of temperate Argentinean and Uruguayan zones. The PEC harbors a rich fish fauna of 213 species, inserted in the families that are common along the Brazilian coast. Only a minor part (8%) of the PEC fish fauna was evaluated as regards the conservation status, mostly because of the lack of basic biological and ecological information for most species. Despite part of the among-estuaries differences are due to different and incomplete sampling efforts, the richness in the PEC is surprisingly higher than other systems in Brazil and around world, which emphasize the importance of the region for global biodiversity conservation. Resumo: O objetivo deste trabalho é apresentar uma lista de espécies atualizada a partir do conhecimento atual dos peixes no Complexo Estuarino de Paranaguá (CEP), com comentários sobre o status de conservação das espécies. Nós utilizamos um grande conjunto de dados derivados de diversos estudos conduzidos na região ao longo dos últimos 30 anos. Cada estudo foi baseado em amostragens mensais realizadas em diferentes habitats estuarinos. Dessa forma, os dados abrangem praticamente todos os habitats estuarinos e leva em conta o ciclo sazonal no sistema. A ictiofauna do CEP representa uma mistura entre a fauna típica da costa tropical brasileira e da fauna com afinidade com as zonas temperadas argentinas e uruguaias. O CEP abriga 213 espécies, inseridas em famílias que são comuns ao longo da costa brasileira. Apenas uma pequena parte (8%) das espécies foi avaliada quanto ao status de conservação, principalmente por causa da falta de informações biológicas e ecológicas básicas para a maioria das espécies. Apesar de parte das diferenças entre estuários ser devido a diferentes e incompletos esforços amostrais, a riqueza do CEP é surpreendentemente elevada em comparação com outros sistemas do Brasil e ao redor do mundo, o que enfatiza a importância da região para a conservação da biodiversidade global. Palavras-chave: ictiofauna, lista de espécies, Paraná, Atlântico Oeste.

Comparison of the temporal and taxonomic patterns of ichthyofauna captured with a fyke net in two sheltered environments in southern Brazil

“…Among the species collected at Indio Beach, only five were not recorded in the Paranaguá Estuarine Complex (checklist, Passos et al (2012)): Genidens machadoi, Anchoa marinii, Heteropriacanthus cruentatus, Macrodon atricauda and Odontesthes argentinensis. The distribution of the last species is restricted to the south of Brazil (Froese & Pauly, 2012).…”

Analysis of fish assemblages in sectors along a salinity gradient based on species, families and functional groups

“…1). PEC harbors a rich fish fauna of 213 species that represent a mixture between tropical Brazilian coastal fauna and temperate Argentinian and Uruguayan species (PASSOS et al, 2012). This richness is higher than, or comparable to, those of other systems located in species-rich, tropical biogeographical zones around the world, which emphasizes the importance of PEC for global biodiversity conservation (PASSOS et al, 2012).…”

“…PEC harbors a rich fish fauna of 213 species that represent a mixture between tropical Brazilian coastal fauna and temperate Argentinian and Uruguayan species (PASSOS et al, 2012). This richness is higher than, or comparable to, those of other systems located in species-rich, tropical biogeographical zones around the world, which emphasizes the importance of PEC for global biodiversity conservation (PASSOS et al, 2012). Despite this conservation status, PEC has suffered from the impact of three ports (Paranaguá, Antonina and Ponta do Félix), dredging, discharge of domestic and industrial effluents, introduction of exotic species (VITULE et al 2006;CAIRES et al, 2007;CONTENTE et al, 2011b), and growing urbanization (LANA et al, 2001).…”

Ichthyofauna of the inner shelf of Paraná, Brazil: checklist, geographic distribution, economic importance and conservation status

“…There have been several studies on the fish fauna in the Paranaguá Estuarine Complex (Hackradt et al 2009;Félix-Hackradt et al 2010;Ignácio & Spach 2010;Contente et al 2011;Passos et al 2012;Pichler et al 2015Pichler et al , 2017Possatto et al 2017) and in the Guaratuba Bay (Chaves & Corrêa 1998;Chaves & Vendel 2001). On the other hand, few studies have focused on the continental shelf region, especially those assessing the taxonomic composition of the ichthyofauna (Santos 2006;Carniel 2008;Schwarz-Junior 2010).…”