Spatial distribution of mollusks in the intertidal zone of sheltered beaches in southeastern of Brazil

Arruda, Eliane Pintor de; Amaral, A. Cecília Z.

doi:10.1590/s0101-81752003000200020

Cited by 24 publications

(13 citation statements)

References 14 publications

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“…This species has a high nutritional value and supplies food for local fishermen and tourists (Amaral et al 2010). Anomalocardia brasiliana was excluded from the present study because it has been investigated in other studies (Narchi 1974;Arruda-Soares et al 1982;Boehs 2000;Arruda and Amaral 2003;Amaral 2010;Boehs et al 2010).…”

Section: Introductionmentioning

confidence: 99%

Bivalves of the São Sebastião Channel, north coast of the São Paulo state, Brazil

Tallarico¹,

Passos²,

Machado³

et al. 2014

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The north coast of the São Paulo State, Brazil, presents great bivalve diversity, but knowledge about these organisms, especially species living subtidally, remains scarce. Based on collections made between 2010 and 2012, the present work provides a species list of bivalves inhabiting the intertidal and subtidal zones of the São Sebastião Channel. Altogether, 388 living specimens were collected, belonging to 52 species of 34 genera, grouped in 18 families. Tellinidae, Veneridae, Semelidae, Ungulinidae, Mactridae, Solecurtidae, Corbulidae, Cardiidae, Lucinidae, Cooperellidae, Nuculidae, Psammobiidae, Donacidae, Solenidae, Periplomatidae, Thraciidae and Arcidae were the most representative families in this collection. Among the identified species, Caryocorbula caribaea, Codakia pectinella and Diplodonta punctata were intertidally abundant, while Macoma uruguayensis and Pitar fulminata were subtidally abundant.

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Section: Introductionmentioning

confidence: 99%

Bivalves of the São Sebastião Channel, north coast of the São Paulo state, Brazil

Tallarico¹,

Passos²,

Machado³

et al. 2014

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“…First, specimens were collected at Engenho D'água beach with sediment composed by medium-sized sand grains, sludge and rocks whereas those from Araçá bay lived in soft sandy and muddy sediments. Hence, there may be an influence of environmental factors, such as sediment characteristics, on shell traits (Anderson 1994(Anderson , 2001Arruda and Amaral 2003), although this has not been specifically demonstrated in C. caribaea yet. The second important factor that can contribute to corbulid shell variation is its peculiar ontogeny.…”

Section: Discussionmentioning

confidence: 95%

Spermatozoan ultrastructure and mitochondrial gene sequence ofCaryocorbula caribaea(d'Orbigny, 1853) (Corbulidae: Bivalvia), a species with plasticity in shell morphology

et al. 2015

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Systematics of Corbulidae supported by anatomical and conchological studies remains confused and controversial because of the considerable phenotypic plasticity of their shells. Ultrastructural spermatozoan study and molecular analyses have been performed to contribute valuable information, which could be used in taxonomy. Electron microscopy was used to analyse sperm cells from specimens of Caryocorbula (Gardner, 1926) exhibiting shell differences. The spermatozoon was of the aquasperm type, showing short acrosome, barrel-shaped nucleus, midpiece composed of four spherical mitochondria and simple flagellum. In addition, about 860 base pairs of mitochondrial large ribosomal subunit (16S rRNA) were sequenced from each individual. The consistent similarity shared by spermatozoa and DNA sequences from all studied specimens indicated that they belonged to one coherent unit, Caryocorbula caribaea (d'Orbigny, 1853), despite the extraordinary plasticity exhibited by their shells.

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“…However, the density is higher than in the São Sebastião Channel (0.12–0.16 ind. m −2 ) in Southeastern Brazil (Arruda & Amaral ). The density of T. mactroides tends to oscillate over unknown time intervals.…”

Section: Discussionmentioning

confidence: 99%

Population biology and secondary production of the harvested clam Tivela mactroides (Born, 1778) (Bivalvia, Veneridae) in Southeastern Brazil

et al. 2014

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The population structure, growth and production of the trigonal clam Tivela mactroides were investigated by monthly sampling between January 2003 and October 2004 in two areas (southern and northern) of the intertidal and subtidal zones of Caraguatatuba Bay, Southeastern Brazil. Intertidal sampling was carried out in each area along eight transects perpendicular to the shoreline. In the subtidal zone of both areas, one 50-m dredging was performed along five sampling stations arranged on three transects perpendicular to the coast. The intertidal abundance of T. mactroides was higher in the southern (more dissipative conditions) than in the northern area. High abundances occurred in February-March 2004 in the south and in September 2004 in the north. The size structure showed that younger individuals dominated in the sublittoral, indicating that recruitment occurs in this zone, followed by the migration of these individuals to the intertidal, where they complete their life cycle. Tivela mactroides showed continuous reproduction, with 26 cohorts detected in the study period. The lower estimates for the growth index (/′ = 3.22), mortality rate (Z = 2.10 year À1 ) and turnover rate (P/B = 1.21 year À1 ), and conversely the longer life span (2.5 years) of T. mactroides in Caraguatatuba Bay (24°S) compared with Venezuelan populations (10°N) suggests a latitudinal pattern of these life-history traits. The high production of T. mactroides in Caraguatatuba Bay was due to continuous recruitment and rapid and continuous growth, and demonstrates the importance of T. mactroides as a biological resource for many marine species and for the local residents.

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Spatial distribution of mollusks in the intertidal zone of sheltered beaches in southeastern of Brazil

Cited by 24 publications

References 14 publications

Bivalves of the São Sebastião Channel, north coast of the São Paulo state, Brazil

Bivalves of the São Sebastião Channel, north coast of the São Paulo state, Brazil

Spermatozoan ultrastructure and mitochondrial gene sequence ofCaryocorbula caribaea(d'Orbigny, 1853) (Corbulidae: Bivalvia), a species with plasticity in shell morphology

Population biology and secondary production of the harvested clam Tivela mactroides (Born, 1778) (Bivalvia, Veneridae) in Southeastern Brazil

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