Patterns in larval fish assemblages under the influence of the Brazil current

Katsuragawa, Mario; Dias, June Ferraz; Harari, Joseph; Namiki, Cláudia Akemi Pereira; Zani-Teixeira, Maria de Lourdes

doi:10.1016/j.csr.2014.04.024

Cited by 37 publications

(44 citation statements)

References 33 publications

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“…Considering larvae of reef species, it is likely they come from Abrolhos Bank that houses the largest and richest coral reefs of the South Atlantic (Leão, ) and is located at the north of the study area. In the Southeast Brazilian Bight, a north‐south pattern in the larval fish assemblage became more pronounced in the dry season (autumn) (Katsuragawa et al, ) and was related to differences in oceanographic conditions of the south and north subareas in the Southeast Brazilian Bight (Miranda & Katsuragawa, ).…”

Section: Discussionmentioning

confidence: 99%

Seasonal variability of ichthyoneuston assemblage on the continental shelf and slope of the Southwest Atlantic Ocean, Brazil (20°–23°S)

et al. 2019

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Many marine organisms spend the early life history stages in neuston domain. Although the importance of ichthyoneuston, few studies were developed in the Southwest Atlantic Ocean. Therefore, this study aimed to improve the knowledge on ichthyoneuston of the Brazilian coast analyzing the vertical stratification and horizontal distribution of these organisms. Neuston samples were collected in daylight between 20°S and 23°S from February to April 2009 (late summer/early autumn; rainy season) and from August to September 2009 (late winter/early spring; dry season). Eggs of six taxa were identified: Anguilliformes, Engraulidae, Clupeidae, Synodontidae, Trichiuridae, and Maurolicus stehmanni (Sternoptychidae). The neustonic larval fish assemblage was composed by 40 families and 63 species. Mullidae and Myctophidae larvae were the most abundant in the rainy period while Mullidae and Mugilidae dominated in the dry season. Seasonal and spatial variation of larval fish assemblages in the neuston were structured by oceanographic features. The larval fish abundance on the outer slope stations may have been favored by the advection of an anticyclone that encompassed most of the study region during the cruise periods. In the rainy season, salinity and local depth structured the larval fish assemblage in a cross‐shelf gradient, while in the dry season the larval assemblage was structured around temperature and north‐south gradient. In the dry season, the cross‐shelf gradient was less pronounced mainly because of the low abundance and frequency of mesopelagic larvae. The low frequency and abundance of some species are probably related to the net avoidance of fish larvae during the day or dial vertical migration, as many species migrate to deeper layers during the day and ascend to neuston only at night. Nevertheless, the present study presented baseline information about the seasonal and spatial variation of the neustonic larval fish assemblage influenced by the oceanographic conditions in the Campos Basin. We recommend to additionally collect night samples to decrease larval escapement rates and to compare night versus day catches to further investigate the influence of daily migration in the neustonic larval fish in the area.

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Section: Discussionmentioning

confidence: 99%

Seasonal variability of ichthyoneuston assemblage on the continental shelf and slope of the Southwest Atlantic Ocean, Brazil (20°–23°S)

et al. 2019

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“…The importance of onshore transport of offshore larval fish by mesoscale oceanographic conditions, i.e. meanders, streamers, tongues, eddies, and filaments was also suggested in the other current systems, including the Gulf Stream, Brazil Current, Agulhas Current, and Leeuwin Current (Olivar and Beckley, 1994;Stegmann and Yoder, 1996;Hare et al, 2001;Holliday et al, 2012;Katsuragawa et al, 2014). Spatio and temporal co-occurrence of the mesopelagic fish larvae with the larvae of inshore species due to shoreward larval transport is reported over the continental shelf of the western Mediterranean (Sabatés and Masó, 1990).…”

Section: Spatial Relations Between Mesopelagic and Commercial Pelagicmentioning

confidence: 91%

Late winter larval fish assemblage in the southern East China Sea, with emphasis on spatial relations between mesopelagic and commercial pelagic fish larvae

Sassa

Konishi

2015

Continental Shelf Research

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“…The low abundance of M . affine larvae during autumn and winter seasons along the Brazilian Bight has been previously reported (Nonaka et al ., ; Castro et al ., ; Katsuragawa et al ., ).…”

Section: Discussionmentioning

confidence: 97%

“…Larvae of M . affine are among the most abundant species in the ichthyoplankton assemblages in the Gulf of Mexico (Conley & Hopkins, ) and in the south‐west Atlantic Ocean (Nonaka et al ., ; Katsuragawa et al ., ). Therefore, considering the ecological importance of M .…”

Section: Introductionmentioning

confidence: 99%

“…In south-eastern Brazilian waters, this species was recorded beyond the 600 m isobath (Hulley, 1981;Figueiredo et al, 2002) and is one of the main food resources for nocturnal predators, such as Thunnus atlanticus (Lesson 1831) and Caranx crysos (Mitchill 1815) (Zavalla-Camin et al, 1991). Larvae of M. affine are among the most abundant species in the ichthyoplankton assemblages in the Gulf of Mexico (Conley & Hopkins, 2004) and in the south-west Atlantic Ocean (Nonaka et al, 2000;Katsuragawa et al, 2014). Therefore, considering the ecological importance of M. affine, this study aims to estimate the growth and mortality rates of its larvae, in order to contribute to the current knowledge of the early life history of this species.…”

Section: Introductionmentioning

confidence: 99%

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Growth and mortality of larval Myctophum affine (Myctophidae, Teleostei)

Namiki

Katsuragawa

Zani-Teixeira

2015

Journal of Fish Biology

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The growth and mortality rates of Myctophum affine larvae were analysed based on samples collected during the austral summer and winter of 2002 from south-eastern Brazilian waters. The larvae ranged in size from 2·75 to 14·00 mm standard length (L(S)). Daily increment counts from 82 sagittal otoliths showed that the age of M. affine ranged from 2 to 28 days. Three models were applied to estimate the growth rate: linear regression, exponential model and Laird-Gompertz model. The exponential model best fitted the data, and L(0) values from exponential and Laird-Gompertz models were close to the smallest larva reported in the literature (c. 2·5 mm L(S)). The average growth rate (0·33 mm day(-1)) was intermediate among lanternfishes. The mortality rate (12%) during the larval period was below average compared with other marine fish species but similar to some epipelagic fishes that occur in the area.

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Patterns in larval fish assemblages under the influence of the Brazil current

Cited by 37 publications

References 33 publications

Seasonal variability of ichthyoneuston assemblage on the continental shelf and slope of the Southwest Atlantic Ocean, Brazil (20°–23°S)

Seasonal variability of ichthyoneuston assemblage on the continental shelf and slope of the Southwest Atlantic Ocean, Brazil (20°–23°S)

Late winter larval fish assemblage in the southern East China Sea, with emphasis on spatial relations between mesopelagic and commercial pelagic fish larvae

Growth and mortality of larval Myctophum affine (Myctophidae, Teleostei)

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