Larval and early post-larval shell of three deep-sea Scaphopoda (Mollusca) from the southwest Atlantic

Vilela, Priscila Magalhães Silva; Souza, Leonardo Santos de; Caetano, Carlos Henrique Soares

doi:10.1080/13235818.2018.1513896

Cited by 4 publications

(3 citation statements)

References 16 publications

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“…Another situation that masks the real diversity of Scaphopoda is the scarcity of researchers studying the alpha-taxonomy of these mollusks worldwide. In the last decades, the knowledge about phylogenetics, comparative anatomy, ecology and development of Scaphopoda has grown tremendously (e.g., Steiner & Dreyer, 2003;Simone, 2009;Faller et al, 2012;Sumner-Rooney et al, 2015;Smith & Spencer, 2016;Dantas et al, 2017;Sigwart et al, 2017;Vilela et al, 2019), which is excellent but little attention has been given to regional taxonomic revisions.…”

Section: Discussionmentioning

confidence: 99%

New records and a new species of Scaphopoda (Mollusca) from the southwestern Atlantic Ocean

Souza

Caetano

Scarabino

et al. 2020

Iheringia, Sér. Zool.

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Section: Discussionmentioning

confidence: 99%

New records and a new species of Scaphopoda (Mollusca) from the southwestern Atlantic Ocean

Souza

Caetano

Scarabino

et al. 2020

Iheringia, Sér. Zool.

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“…A dieta dos escafópodes é composta por foraminíferos e outros microrganismos associados ao substrato. Esses invertebrados são dioicos com reprodução externa (REINOLDS, 2002;DANTAS et al, 2016;VILELA et al, 2019).…”

Section: Classe Scaphopoda Bronn 1862unclassified

Estado atual de conhecimento das principais características dos Moluscos / Current state of knowledge of the main characteristics of mollusks

Camargo¹,

Barreiros²,

Barbosa³

et al. 2021

BJDV

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RESUMOMollusca é um dos maiores Filos do Reino Animal, com uma estimativa de 240.000 espécies. O grupo apresenta enorme diversidade biológica, atrelada a ampla distribuição geográfica. Os representantes do Filo apresentam distintos nichos e relações tróficas. Algumas espécies são de interesse econômico e outras de saúde pública. Um exemplo é o Limnoperna fortunei Dunker, 1857, que condiciona prejuízo ambiental, social e econômico. Já o gênero Biomphalaria, hospedeiro intermediário de um trematódeo, causa problemas de saúde pública em muitos países. Atualmente, o Filo é representado por oito classes: Solenogastres ou Neomeniomorpha, Caudofoveata ou Chaetodermomorpha, Polyplacophora, Bivalvia, Monoplacophora, Scaphopoda, Gastropoda e Cephalopoda. Diante disso, o presente trabalho teve como objetivo realizar um trabalho de revisão do atual conhecimento das características do Filo Mollusca. Mesmo diante dessa diversidade e importância, algumas informações são escassas e pulverizadas na literatura.

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“…A multivariate approach was carried out using Discriminant Function Analysis to integrate all morphometric data in a single analysis. For this step, we standardized the morphometric data following Romesburg (1984) and Vilela et al (2019): the distribution mean and standard deviation was determined for each variable and later, the mean was subtracted from each variable value. All statistical procedures were performed using STATISTICA 7 by Statsoft, Inc, Tulsa, Oklahoma.…”

mentioning

confidence: 99%

Morphometry of the shell in Scaphopoda (Mollusca): a tool for the discrimination of taxa

Souza

Caetano

2020

J. Mar. Biol. Ass.

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The alpha taxonomy of scaphopods is based mainly on the shell morphology, as it is for most molluscs. In the last three decades, the employment of morphometric variables of the shell in combination with statistics has considerably increased to aid species discrimination, but this has not been used above species level. In this study, a traditional morphometric approach was used to distinguish congeners, genera and families within the orders Dentallida and Gadilida. We studied 28 species of scaphopods from Brazil, belonging to 12 genera and five families. Twelve morphometric variables were measured, and a correlation test was done to select a set of variables without correlation as input data to perform a discriminant analysis. In the analysis of congeners, the discrimination power was high in both orders. Among the genera studied, the robustness of the analysis was drastically reduced in Dentaliida, while Gadilida maintained a high percentage of correct classifications. At the family level, both orders presented high percentages of correct classification, but the imbalance of cases for each taxon masks an inconsistent result. Based on our results, the morphometric approach was a useful tool to discriminate congeneric species of both orders and to discriminate the genera of Gadilida.

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Larval and early post-larval shell of three deep-sea Scaphopoda (Mollusca) from the southwest Atlantic

Cited by 4 publications

References 16 publications

New records and a new species of Scaphopoda (Mollusca) from the southwestern Atlantic Ocean

New records and a new species of Scaphopoda (Mollusca) from the southwestern Atlantic Ocean

Estado atual de conhecimento das principais características dos Moluscos / Current state of knowledge of the main characteristics of mollusks

Morphometry of the shell in Scaphopoda (Mollusca): a tool for the discrimination of taxa

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