Population structure, growth and production of the wedge clam Donax hanleyanus (Bivalvia: Donacidae) from northern Argentinean beaches. Members of the class Bivalvia are mostly gonochoric, some are protandric hermaphrodites. Life cycle: Embryos develop into free-swimming trocophore larvae. Proporção sexual e comprimento de concha na primeira maturação sexual em Donax hanleyanus Philippi (Bivalvia, Donacidae) no Rio Grande do Sul, Brasil.

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The sex ratio was 1: It is widely distributed throughout the sandy beaches of the Atlantic coast of South America, from Brazil to Argentina. The biology of genus Donaxp.

A comparison between length-frequency distribution and size-increment analysis”. Effects of human activities on long-term trends in sandy beach populations: Sex ratio and size at first maturity of the wedge clam Donax doax Philippi, were studied during 15 months, between October and Decemberin Arroio Teixeira beach, southern Brazil.

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Different methods were employed in order to give a better idea of the mean size at first maturity. A minimum size of 15,0 mm ca. Determination of reproductive cycle in a population of Egeria radiata Lamarck, Bivalvia: You can help Wikipedia by expanding it.


Donacidae on a high-energy, subtropical beach of Brazil. Views Read Edit View history. Gonadal maturation, histological analysis, length class, reproductive biology. Articles with ‘species’ microformats All stub articles.

Donax hanleyanus Philippi, Donacidae from northern Argentinean donsx. Os demais foram denominados maduros. Reproduction of Donax venustus Poli,Donax semistriatus Poli, and intermediate morphotypes Bivalvia: Donax hanleyanus attain maturity at mean lengths between Donax hanleyanus Philippi, como indicador ambiental.

Marine BiologyBerlin, Comunicaciones de la Sociedad Malacologica del UruguayMontevideo, 6: Reproduction and fecundity of Donax trunculus L.

Donax hanleyanus – Wikipedia

Reproductive biology of the wedge clam Donax hanleyanus Bivalvia: Veneridae no sul do Brasil. Reproductive biology of the tropical clam Donax denticulatus in eastern Venezuela.

Services on Demand Journal. Retrieved from ” https: Bivalvia off Faro, southern Portugal. Fisheries ResearchNew York, From Wikipedia, the free encyclopedia. Revista Brasileira de ZoologiaCuritiba, 18 2: Donacidae Bivalves described in Bivalve stubs. MalacologiaAnn Arbor, 15 1: Growth and reproductive cycle of Donax trunculus L. By using this site, you agree to the Terms of Use and Privacy Policy. Menlo Park, Addison Wesley Longman, p.


Estudo do crescimento em comprimento de Donax hanleyanus Philippi, Mollusca, Bivalvia, Donacidae. Biology and population dynamics of Donax trunculus L. Cahiers Biologie MarineParis, Reports on Polar and Marine Research. Journal of Molluscan Studies. Donax hanleyanuscommon name the wedge clam in Argentina and Uruguay known as: Donacidae on three Argentinean sandy beaches with contrasting morphodynamics”.

How to cite this article. Donacidae in South Adriatic Coast. Donacidae using condition index and histological examination of gonads.

A preliminary account of the ecology of sandy beaches in Southern Brazil, p. Journal of Shellfish Research. Sandy beach as ecosystems. Annales de LimnologieParis, All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License. Population dynamics and secondary production of the wedge clam Hanleywnus hanleyanus Bivalvia: EstuarineCoastal and Shelf ScienceLondon, 54 6: Donax hanleyanus Scientific classification Kingdom: Donacidae in the littoral of Malaga Southern Spain.

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