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Zoneamento da área extrativista mais produtiva da Anomalocardia lexuosa (Linnaeus, 1767)(Mollusca: Bivalvia) no mundo = Zoning of the most productive extraction area of Anomalocardia lexuosa (Linnaeus, 1767) (Mollusca:Bivalvia) in the world de Oliveira Lima, S.A; Andrade, H.A. (2018). Zoneamento da área extrativista mais produtiva da Anomalocardia lexuosa (Linnaeus, 1767)(Mollusca: Bivalvia) no mundo = Zoning of the most productive extraction area of Anomalocardia lexuosa (Linnaeus, 1767) (Mollusca:Bivalvia) in the world. Biotemas 31(3): 33-41. https://dx.doi.org/10.5007/2175-7925.2018v31n3p33 In: Biotemas: Florianopolis. ISSN 0103-1643

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Beschikbaar in	Auteurs
VLIZ: Open access 319395 [ download pdf ]

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Trefwoord

Anomalocardia brasiliana (Gmelin, 1791) [WoRMS]

Author keywords

Coastal Ecosystem; Density; Distribution; Macrofauna

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Auteurs		Top
de Oliveira Lima, S.A Andrade, H.A.

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Abstract

Mangue Seco Beach, in Pernambuco State, is a region with a large number of ecosystems and is notable as a place where Anomalocardia lexuosa is collected. In this work, zoning for the beach is proposed based on to the most expressive characteristics of the region and densities of A. lexuosa. In the delineation of the region, the effects of the surrounding water and proximity to the beach line were considered irst. Three main location strata were evaluated, border, interior coast and interior sea, as well as secondary strata with latitudinal and longitudinal divisions. In total, 176 samples were obtained during surveys carried out in 2015. For all surveys the mean densities were higher in the interior coastal sector. The areas located near estuaries seemed better for the species compared to regions with greater marine interference. In general, it was possibleto differentiate four location strata according to the morphodynamic characteristics and densities of A. lexuosa. The irst and most abundant stratum would be the interior coast, the second stratum would be the interior sea and the border stratum would be divided into two substrates, one further away from the beach line and another closer to the river mouth.

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