Zooplâncton da plataforma continental norte do Estado de Pernambuco (Brasil).

Neumann‐Leitão, Sigrid; Gusmão, Lúcia Maria de Oliveira; Paranhos, Janete Diane Nogueira; Vieira, Dilma Aguiar do Nascimento; Paranaguá, Maryse Nogueira

doi:10.5914/tropocean.v22i1.2659

Cited by 3 publications

(2 citation statements)

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“…The community structure and productivity of phytoplankton are governed mainly by the availability of nutrients, discharge of rivers, seasonal conditions of winds, tides, precipitation cycles, chains of resurgence, or by the joint action of these factors (Paranaguá, 1985/86; Neumann-Leitão et al ., 1991/1993; Eskinazi-Leça et al ., 1997, 2004).…”

Section: Discussionmentioning

confidence: 99%

Spatial and seasonal variation of the phytoplankton community structure in a reef ecosystem in North-eastern Brazil

et al. 2017

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The beach of Porto de Galinhas is socially and economically important because of the reef environment that attracts a large number of tourists. In order to contribute to the monitoring of the environmental quality of the area, which is subject to strong human pressure, phytoplankton composition was analysed in four fixed sampling station, during 4 months of the dry and rainy periods, at high and low tides and at diurnal spring tides. The phytoplankton community structure and the abiotic parameters varied according to seasonality. Phytoplankton biomass ranged from 0.42 to 5.66 mg m−3and density ranged from 0.50 to 14.3 cell 103l−1. A total of 192 taxa were identified, belonging to six divisions. The most representative taxa were Ochrophyta (64.6%), followed by Dinophyta (19.3%).Ostreopsis ovata, Trichodesmium erythraeum, Protoperidinium bispinum, Paralia sulcata, Thalassiosira leptopusandFragilaria capucinawere the most representative species of the environment.Ostreopsis ovatawas the only highly frequent and dominant species. The Easterly Wave Disturbance contributed to the occurrence of a large number of freshwater species that were observed on the site. The environment was characterized as oligotrophic, tending toward mesotrophic in the rainy season. The high number of taxa associated with high evenness was indicative of environmental balance. Continental interference was perceived due to the variation of abiotic parameters and of the variation of the phytoplankton community structure.

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Section: Discussionmentioning

confidence: 99%

Spatial and seasonal variation of the phytoplankton community structure in a reef ecosystem in North-eastern Brazil

et al. 2017

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“…No previous study has evaluated the biomass and production of the copepod assemblage in the oceanic region of the south-west Atlantic or in any other oceanic region along the Brazilian coast. In studies of biomass and secondary production in estuarine systems and neritic waters off the north-eastern (Neumann-Leitão, 2010) and central Brazilian coasts (Ara, 2004; de Melo Junior, 2009), the production ranged from 1.13 to 17 mg C m −3 d −1 . It is generally expected that tropical oceanic areas will support a lower rate of secondary production than tropical neritic waters, because of the low food level and the dominance of small-sized phytoplankton, which are not directly available to copepods, in tropical oceanic areas (Miyashita et al , 2009).…”

Section: Discussionmentioning

confidence: 99%

Spatial and temporal changes in biomass, production and assemblage structure of mesozooplanktonic copepods in the tropical south-west Atlantic Ocean

et al. 2014

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We examined the spatial and temporal variations of coastal and oceanic epipelagic copepods (rainy–dry seasons of 2009) in a tropical area of the south-west Atlantic. Zooplankton samples were obtained at 48 stations along six transects perpendicular to the coast, in the subsurface water between the 25 and 3000 m isobaths, by horizontal hauls using a Multinet. Abundance (42–64,753 ind. m−3), biomass (0.08–113 mg C m−3) and daily copepod production (0.17–163.20 mg C m−3 d−1) showed longitudinal and latitudinal variability. The highest values were observed over the southern continental shelf during the dry season. Temoridae, Undinula vulgaris and Paracalanus quasimodo dominated the biomass and daily copepod production during the rainy season; while Calanoides carinatus, Calanopia americana, Clausocalanidae, Temoridae, Paracalanidae and Subeucalanidae dominated during the dry season. The copepod assemblages formed four different groups: rainy season–continental shelf (1), dry season–continental shelf (2), rainy season–continental slope (3) and dry season–continental slope (4). Temperature, salinity, chlorophyll-a and suspended particulate matter explained 45% of the productivity distribution of the dominant copepod species. This study is the first attempt to examine the biomass and daily copepod production in oceanic waters in the south-west Atlantic Ocean, and it showed that copepod biomass and production in a tropical region can be relatively high compared with other regions of the world's oceans.

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Zoo- and Ichthyoplankton Communities of Pelagic Ecosystems in the Western Tropical Atlantic

Schwamborn

Neumann‐Leitão²,

Lira³

et al. 2023

The Latin American Studies Book Series

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Zooplâncton da plataforma continental norte do Estado de Pernambuco (Brasil).

Abstract: -

Cited by 3 publications

References 0 publications

Spatial and seasonal variation of the phytoplankton community structure in a reef ecosystem in North-eastern Brazil

Spatial and seasonal variation of the phytoplankton community structure in a reef ecosystem in North-eastern Brazil

Spatial and temporal changes in biomass, production and assemblage structure of mesozooplanktonic copepods in the tropical south-west Atlantic Ocean

Zoo- and Ichthyoplankton Communities of Pelagic Ecosystems in the Western Tropical Atlantic

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