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Echinoderms from Todos os Santos Bay and Aratu Bay (Bahia, Brazil)

机译:来自Todos Santos湾和Aratu湾(巴西巴伊亚州)的棘皮动物

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摘要

Neste trabalho são registrados os equinodermos (exceto Holothuroidea) obtidos durante a execução do projeto "Marine Environmental Evaluation of the Todos os Santos Bay-MAREMBA" em julho/agosto de 1996 e durante o projeto "Geoecologia das comunidades bentônicas infralitorais da Baía de Todos os Santos (BTS), BA, Brasil: diversidade biótica e sedimentológica", (1997). Um total de 33 espécies pertencentes a 15 famílias foram registradas e re-descritas. A distribuição de Ophiactis brasiliensis Manso, 1988 e Amphiodia trychna H.L. Clark, 1918 é estendida para a região nordeste do Brasil. A classe Ophiuroidea foi dominante nas amostragens em termos de abundância e freqüência de ocorrência, em particular as espécies Amphiodia atra Stimpson, 1852, Amphipholis subtilis (Ljungman, 1867), Ophiactislymani Ljungman, 1871 e Ophiostigma isocanthum (Say, 1825). O asteróide Oreaster reticulatus (Linnaeus, 1758) é considerado vulnerável à exploração humana e foi escasso durante as coletas. Outras espécies encontradas na BTS, tais como os asteroides Luidia clathrata (Say, 1825) e L. senegalensis (Lamarck, 1816) e o equinóide Eucidaristribuloides (Lamarck, 1816) figuram na lista nacional de espécies de invertebrados aquáticos ameaçados de extinção._______________________________________________________________________________ ABSTRACT: We present the results of the studies on biodiversity of Echinodermata (except Holothuroidea) from the Projects "Marine Environmental Evaluation of the Todos os Santos Bay - MAREMBA" (July/August 1996) and "Geoecology of the Benthic Infralitoral Communities of Todos os Santos Bay (BTS), Bahia, Brazil" (1997). A total of 33 species from 15 families were registered and re-described. The distribution of Ophiactis brasiliensis Manso, 1988 and Amphiodia trychna H.L. Clark, 1918 is extended to northwestern Brazil. The class Ophiuroidea was dominant in samples in terms of abundance and frequency of occurrence, in particular Amphiodia atra Stimpson, 1852, Amphipholis subtilis (Ljungman, 1867), Ophiactislymani Ljungman, 1871and Ophiostigma isocanthum (Say, 1825). The asteroid Oreaster reticulatus (Linnaeus, 1758) is considered vulnerable to human exploration and was scarce during the surveys. Other species found at BTS, such the asteroids Luidia clathrata (Say, 1825) and L. senegalensis (Lamarck, 1816) and the echinoid Eucidaristribuloides (Lamarck, 1816)are included in the national list of threatened invertebrate species.
机译:在这项工作中,棘皮动物(除鞭毛纲动物外)在1996年7月/ 8月执行“托多斯桑托斯湾-马雷姆巴海洋环境评估”项目以及“所有人海湾底栖生物的地球生态学”项目期间获得。桑托斯(BTS),巴西文学士,“生物和沉积学多样性”,(1997年)。登记并重新描述了属于15个科的总共33种。 Ophiactis brasiliensis Manso,1988 and Amphiodia trychna H.L.的分布克拉克(Clark),1918年扩展到巴西的东北地区。就丰富度和发生频率而言,蛇纹目属占主导地位,特别是Amphiodia atra Stimpson,1852,Amphipolis subtilis(Ljungman,1867),Ophiactislymani Ljungman,1871和Ophiostigma isocanthum(Say,1825)。小行星Oreaster reticulatus(Linnaeus,1758)被认为容易受到人类剥削,并且在收集过程中稀缺。在BTS中发现的其他物种,如小行星Luidia clathrata(Say,1825)和L. senegalensis(Lamarck,1816)和Echinoid Eucidaristribuloides(Lamarck,1816)在国家濒危水生无脊椎动物物种中。 :我们从“托多斯桑托斯湾海洋环境评估-MAREMBA”(1996年7月/ 8月)和“托多斯桑托斯底栖生物群落的地球生态学”项目中介绍了棘皮动物(除鞭毛虫)生物多样性的研究结果。湾(BTS),巴西巴伊亚州(1997)。对15个科的总共33种进行了注册和重新描述。 Ophiactis brasiliensis Manso,1988 and Amphiodia trychna H.L.的分布克拉克(Clark),1918年扩展到巴西西北部。在样品的丰度和发生频率方面,麦兜铃类占主导地位,特别是两栖两栖动物Amphiodia atra Stimpson(1852),枯草两栖双歧杆菌(Ljungman,1867),Ophiactislymani Ljungman(1871)和异叶蛇舌草(Ophiostigma isocanthum)(Say,1825)。小行星Oreaster reticulatus(Linnaeus,1758)被认为容易受到人类探索,并且在调查期间很稀少。在BTS上发现的其他物种,如小行星Luidia clathrata(Say,1825)和L.senegalensis(Lamarck,1816)和类chin虫类Eucidaristribuloides(Lamarck,1816)也列入了国家濒危无脊椎动物物种清单。

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