Abstract

The North Coast of Brazil is a biogeographical area of the Exclusive Economic Zone of Brazil that share environmental features with region under influence of the Plume of the rio Amazon and Orinoco. Despite the relevance of the region’s fish fauna, in biogeo-graphic, ecologic, and commercial terms, this area is poorly known. This study presents the most complete and updated list of the bony fish fauna from the North Coast of Brazil, aiming to minimize our knowledge gap on such region's biodiversity. The main sources of infor-mation were records from zoological collections, inventories obtained during the surveys of the Research and Conservation National Center of Northern Marine Biodiversity and collec-tions from the authors. A total of 787 species of the Teleostei were recorded off the North Coast of Brazil and adjacent waters, representing 156 families and 45 orders. Most (531) of these species are coastal, 256 inhabit deeper water, and 31 pelagic (oceanic) species are com-mon to both the internal and external continental shelf, of which 54 represent new records. Given the progressive intensification of fisheries and increasing incentives for the exploita-tion of the local gas and oil reserves, a more adequate inventory of the marine fish fauna of the North Coast of Brazil is fundamentally important for the management of the region’s aquatic biodiversity.

Highlights

  • The Brazilian coast stretches about 8,500 km in eastern South America and is characterized by a great variety of environments associated with an ample variation of geologic, geographic, climatic, hydrographic, and sedimentological features, including estuaries, lagoons, sandy beaches, phanerogam and rhodolite beds, rocky cliffs, and coral reefs (MMA, 2002, 2006 e 2007)

  • We provide insights into the origin, evolution, and diversification of the region’s marine fish fauna

  • The fish fauna of the North Coast of Brazil is one of the least surveyed and the most poorly known of the Brazilian Exclusive Economic Zone (Marceniuk et al, 2013)

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Summary

Introduction

The Brazilian coast stretches about 8,500 km in eastern South America and is characterized by a great variety of environments associated with an ample variation of geologic, geographic, climatic, hydrographic, and sedimentological features, including estuaries, lagoons, sandy beaches, phanerogam and rhodolite beds, rocky cliffs, and coral reefs (MMA, 2002, 2006 e 2007). The North Coast of Brazil encompasses the region between the mouth of the Oiapoque River, which forms the border between Brazil and French Guiana, and the Parnaíba delta, at the border between Maranhão and Piauí states (Ekau & Knoppers, 1999). This region is one of the most productive portions of the Brazilian coast (MMA, 2006) and supports one of the world’s most important fisheries (Correa & Martinelli, 2009). The majority of the records attributed to this region are derived from inferences based on the occurrence of species off the Surinam and Guianas or the northeastern Coast of Brazil (e.g., Menezes et al, 2003)

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