Zooplâncton Oceânico entre os Estados do Ceará e Pernambuco, Brasil.

Gusmão, Lúcia Maria de Oliveira; Neumann‐Leitão, Sigrid; Nascimento-Vieira, Dilma Aguiar do; Silva, Tâmara de Almeida e; Silva, Andréa Pinto; Neto, Fernando Figueiredo Porto; Moura, Mauro César de Oliveira

doi:10.5914/tropocean.v25i1.2725

Cited by 7 publications

(6 citation statements)

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“…Thus, freshwater flux fertilizes the very coastal area under 10 m depth. Other authors for Northeastern Brazil (e.g., Gusmão et al, 1998;Neumann-Leitão et al, 1999, 2008Campos et al, 2017) registered this same pattern. The constant northeast tradewinds and arid climate in this area permits for the establishment of widespread beaches and dunes, which are in continuous movement due to the absence of anchoring vegetation (Mabesoone and Coutinho, 1970).…”

Section: Discussionsupporting

confidence: 63%

Connectivity Between Coastal and Oceanic Zooplankton From Rio Grande do Norte in the Tropical Western Atlantic

et al. 2019

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Connectivity Between Coastal-Oceanic Zooplankton the reproduction and the trophic strategies were the main factors in structuring the community. We found a pelagic gradient for the zooplankton community varying from a low diverse eutrophic coastal area to a high diverse oligotrophic oceanic area, located over a varied, high biomass benthic habitat, which is mostly covered by calcareous algae functioning on the shallow shelf as a large reef system.

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Section: Discussionsupporting

confidence: 63%

Connectivity Between Coastal and Oceanic Zooplankton From Rio Grande do Norte in the Tropical Western Atlantic

et al. 2019

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“…Most of the copepods species observed in this study were previously reported for the oceanic waters of Brazil (Gusmão et al 1997, Lopes et al 1999, Cavalcanti and Larrazábal 2004, Dias et al 2010, the west-central Gulf of Mexico (López-Salgado et al 2000), the eastern tropical Pacific (northwestern Mexican coast) (Suárez-Morales et al 2000), the Mediterranean Sea and the North Atlantic (Andersen et al 2001(Andersen et al , 2004, and the eastern tropical Atlantic Ocean from 6°S to 4°N and at 6°W, 12°W, 18°W, and 24°W (Piontkovski et al 2003). Small calanoids were dominant at 1 m (smaller calanoids) and large calanoids (like C. carinatus) at 800 m during both sampling periods.…”

Section: Hydrography Conditionsmentioning

confidence: 61%

Vertical distribution and structure of copepod (Arthropoda: Copepoda) assemblages in two different seasons down to 1,200 m in the tropical Southwestern Atlantic

Dias¹,

Araújo²,

Bonecker³

2018

Zoologia

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The vertical distribution of copepod assemblages, ascertained from the surface down to 1,200 m, was investigated during two sampling periods (rainy and dry seasons), at four depths, in the oligotrophic waters of the southwestern Atlantic Ocean. Total density, diversity, and richness differed among sampling depths. Copepod density decreased with depth in the two sampling periods, with a maximum at 1 m and a slight decrease at 800 m. Higher diversities were observed at 250 m and 1,200 m during the rainy season and at 1 m and 1,200 m during the dry season. The maximum number of species was found at 1,200 m during the rainy season and at 1 m during the dry season. Various copepod assemblages were delimited in the water column in the two sampling periods. The deeper copepod assemblages occupied a wider range of depths. Salinity and temperature influenced the structure of copepod assemblages and reflected the hydrographic characteristics of the water masses in the region. Candaciapachydactyla (Dana, 1849), Scolecithrixdanae (Lubbock, 1856), and Agetuslimbatus (Brady, 1883) were the indicator species found at 1 m. The effects of different environmental factors on the copepod assemblages suggest that these consortia occupy distinct niches in the ocean.

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“…According to Deevey and Brooks (Deevey and Brooks, 1977) and Webber and Roff (Webber and Roff, 1995), a vertical discontinuity in zooplankton abundance can take place in TW, since larger copepods occur mainly in phytoplankton-rich deep waters, whereas smaller species are more numerous at the surface. Nevertheless, studies by Gusmão et al (Gusmão et al (1998) from 100 and 50 m to the surface showed higher biodiversity and abundance in deeper layers around 100 m, where Medeiros et al (Medeiros et al, 1999) found higher primary productivity. For the same area, Neumann-Leitão et al (Neumann-Leitão et al, 1999) confirmed higher biodiversity and productivity from samples from the upper 150 m. In our study, no difference (P .…”

Section: Discussionmentioning

confidence: 94%

Diversity and distribution of the mesozooplankton in the tropical Southwestern Atlantic

Neumann‐Leitão

Sant'Anna

Gusmão

et al. 2008

Journal of Plankton Research

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Mesozooplankton species distribution and abundance were studied in the tropical Southwestern Atlantic, in neritic and oceanic regions off the state of Rio Grande do Norte, northeastern Brazil (38 to 68 S and 32830' to 35830' W). Samples were collected with a 120 mm mesh net towed horizontally at 40 stations along five transects in June 1986. A total of 151 taxa were identified. Copepoda (93 species) numerically dominated (78%) the community. The highest zooplankton abundance was recorded at a coastal station (1098 ind m 23), and the lowest at the station farthest offshore (82 ind m 23). The low abundance of zooplankton corresponded to oligotrophic water masses, and differences in abundance were locally affected by topographic upwelling. Three groups were distinguished: (i) oceanic with very low total abundance (,15 ind m 23), (ii) a mix of neritic and oceanic species and (iii) coastal neritic group. Species diversity was high (mean 3.14 + 0.42 bits ind 21) and increased with the ecological stability of the area. The local oceanographic conditions, with a strong connection between the oligotrophic oceanic water masses and the enriched coastal water, are of paramount importance to the local food chain and patterns of zooplankton diversity.

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Zooplâncton Oceânico entre os Estados do Ceará e Pernambuco, Brasil.

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Cited by 7 publications

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Connectivity Between Coastal and Oceanic Zooplankton From Rio Grande do Norte in the Tropical Western Atlantic

Connectivity Between Coastal and Oceanic Zooplankton From Rio Grande do Norte in the Tropical Western Atlantic

Vertical distribution and structure of copepod (Arthropoda: Copepoda) assemblages in two different seasons down to 1,200 m in the tropical Southwestern Atlantic

Diversity and distribution of the mesozooplankton in the tropical Southwestern Atlantic

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