Distribution and abundance of carangid larvae in the southeastern Brazilian Bight during 1975-1981

Abstract

Distribution and abundance of the carangid larvae collected during ten survey cruises in the southeastern Brazilian Bight were analyzed. Trachurus lathami was the most abundant species in the surveyed area with 58.54 % of total carangids taken, followed by Chloroscombrus chrysurus with 15.22 % and Decapteruspunctatus with 12.17 %. Larvae of T lathami and D. punctatus were found all over the continental shelf while the distribution of C. chrysurus larvae was limited to the coastal region. Most of the species occurred all year-around but remarkably during spring and summer. This intensive spawning period of most carangid species seems to be related to the seasonal variation of the hydrographie structure of the southeastern coast of Brazil.

Ichthyoplankton distribution and abundance off southeastern and southern Brazil

“…2). This region was periodically subjected to coastal upwelling (Katsuragawa and Matsuura, 1992). Water column was characterized by higher density values in the coastal region, between 24.5 and 25, a low density lens at about 30-80 km from the coast, and a further density increase towards the shelf edge.…”

“…Preliminary identification of fish larvae collected in this study indicated the presence of a great number of Engraulidae and Clupeidae, followed in abundance by Sciaenidae and Pleuronectidade. Cabo Frio and Cabo Santa Marta Grande are coastal areas subjected to wind induced upwelling (Katsuragawa and Matsuura, 1992;Odebrecht and Djurfeldt, 1996), and where the lowest concentration of fish eggs and larvae, and zooplankton biovolume occured (Fig. 2).…”

Age structure and growth of the rough scad, Trachurus lathami (Teleostei: Carangidae), in the Southeastern Brazilian Bight

“…Except for the summer of 2008, the typical spring-summer pattern (September to March), when the rough scad schools usually concentrated between 23° and 26°S for spawning, was observed. Such movement coincides with the most productive period in terms of water column eutrophication (Castro et al 2006) and biological productivity (Pires-Vanin et al 1993), which favors the rough scad in terms of their feeding habits (Carvalho and Soares 2006) and conditions for larval growth (Katsuragawa and Matsuura 1992).…”

“…Its life cycle and fishery (Saccardo 1987, Saccardo and Kasturagawa 1995, Saccardo et al 2005; growth (Saccardo and Katsuragawa 1995); diet (Meneghetti andAlves 1971, Carvalho andSoares 2006); parasites (Braicovich et al 2012); and larvae and juveniles (Katsuragawa and Matsuura 1992, Katsuragawa and Ekau 2003, Campos et al 2010) have been investigated. Some biological aspects can be summarized from those studies, as follow.…”

Size distribution of the jack Chloroscombrus chrysurus (Linnaeus) (Actinopterygii, Carangidae) in a tropical bay at Southeastern Brazil

“…FLORES-COTO & SANCHEZ- RAMIREZ (1989) stated that larval stages (1.8-13.3 mm TL) were abundant at shallow waters (< 40 m depth), near to estuaries and bays, along the Southeastern Mexico Gulf, and that high densities were recorded in coastal area near to Términos lagoon. Larvae stages were recorded in coastal water less than 30 m depth in the southeastern Brazilian Bight (KATSURAGAWA & MATSUURA 1992). WEISS et al (1976) described the distribution and abundance of larvae along the Southern Brazilian coastal, reporting that juveniles occur up to 200 m depth.…”