Embryonic, larval, and post-metamorphic development of the sea urchin Cassidulus mitis (Echinoidea; Cassiduloida): an endemic brooding species from Rio de Janeiro, Brazil

Contins, Mariana; Ventura, Carlos Renato Rezende

doi:10.1007/s00227-011-1732-5

Cited by 9 publications

(6 citation statements)

References 26 publications

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“…They can form dense aggregations (Fricke 1978), reach sexual maturity at 1 to 2 yr (i.e. generation time), broadcast spawn up to 2 times per year (Greenwood 1980), and probably have a fairly long post larval development time (based on other urchin species; Lamare & Barker 2001, Contins & Ventura 2011. The Cape sea urchin also exhibits unique variation in colour among individuals (pink, purple and red), but there is an apparent random distribution of colour forms throughout the geographic distribution.…”

Section: Introductionmentioning

confidence: 99%

Oceanic circulation, local upwelling and palaeoclimatic changes linked to the phylogeography of the Cape sea urchin Parechinus angulosus

Muller¹,

Heyden²,

Bowie³

et al. 2012

Mar. Ecol. Prog. Ser.

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To enhance our current understanding of the evolution of intertidal marine species, we investigated the phylogeographic population structure of the Cape sea urchin Parechinus angulosus using cytochrome c oxidase subunit I (COI) mitochondrial and receptor for egg jelly protein 9 (SpREJ9) nuclear DNA (nDNA) sequence data. The species shows variation in colour form, has a wide distribution along the southern African coastline, a broadcast mode of reproduction and probably a fairly long post larval development. Despite the prediction that species with such life history traits will show shallow genetic differentiation among sampling sites, high levels of population differentiation were obtained among many of the 18 sampling localities. The trend was particularly strong along the west coast Namaqua biogeographic province of southern Africa where the structure was also correlated with local upwelling. Larval dispersal broadly corresponded with oceanic currents and 2 distinct geographic genetic groupings were detected. The first grouping represents most individuals sampled along the cool temperate west coast, while the second comprises individuals sampled from the south and east coasts of southern Africa. The genetic separation of P. angulosus individuals is in the vicinity of a recognized biogeographic barrier (Cape Point), and is supported by geneflow analyses, parsimony haplotype networks for both nDNA and mtDNA data, and a mtDNA Bayesian analyses of population structure. Expansion events for the Cape sea urchin, and the divergence time estimates between the 2 assemblages, centre around the last glacial maximum and provide substantial support that glaciations and associated lowering and rising of sea levels significantly affected marine rocky shore organisms along the southern African coastline.KEY WORDS: Southern Africa · Echinodermata · Phylogeography · Geneflow · Sea-level change · SpREJ · mtDNA COI Resale or republication not permitted without written consent of the publisher

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Section: Introductionmentioning

confidence: 99%

Oceanic circulation, local upwelling and palaeoclimatic changes linked to the phylogeography of the Cape sea urchin Parechinus angulosus

Muller¹,

Heyden²,

Bowie³

et al. 2012

Mar. Ecol. Prog. Ser.

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“…It is notable that over the last decade, the number of studies on Brazilian echinoderms has increased significantly and has included publication of several papers on different classes (e.g., Alitto et al 2019;Barbosa et al 2015;Contins & Ventura 2011;Gondim et al 2013Gondim et al , 2014Gondim et al , 2018Lopes et al 2016;Martins & Souto 2020;Moura et al 2015;Tavares et al 2019) and the appearance of new specialists. However, this has not applied to Crinoidea.…”

Section: Discussionmentioning

confidence: 99%

Catalogue of living crinoids (Echinodermata: Crinoidea) from Brazil

Gondim

Moura

Christoffersen

2021

Zootaxa

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Knowledge of living crinoids from Brazil is chiefly restricted to the contributions of Dr Luis Roberto Tommasi between the decades of 1950 and 1970. Herein we present an updated catalogue of the crinoids occurring along the Brazilian coast, including data on synonyms, type localities, type material, geographical distribution, bathymetric ranges, and occurrences of species along the coast. The data is based on an extensive revision of the literature and on a survey of several databases. A total of 20 species were catalogued, of which two are endemic (Phrixometra longipinna var. brasiliensis and Thaumatometra minutissima). According to information from the literature, P. longipinna var. brasiliensis represents an undescribed taxon. Although Brazil supports the greatest number of crinoid species in the Southwestern Atlantic, its crinoid fauna remains understudied and likely underestimated. Research on crinoids remains a subject of great potential, not only for taxonomy but also for other areas of knowledge.

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“…Some modern cassiduloid species present endemism due to the limited lateral displacement of adults and the movement of larvae almost exclusively by the action of currents and tides (Emlet et al , 1987; Contins & Ventura, 2011). The larvae have cilia in their pre-metamorphic stage that allow them to rotate on their axis but not to “swim” (Contins & Ventura, 2011). Also, some living cassiduloids present a gregarious habit (Caballero-Ochoa et al , 2021).…”

Section: Ecology and Paleoecology Of Cassiduloidsmentioning

confidence: 99%

Late Jurassic Cassiduloids (Echinodermata, Echinoidea) from West-Central Argentina: Taxonomic and Paleogeographic Implications

Caccia,

Cataldo,

Aguirre-Urreta

2023

Ameghiniana

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Cassiduloids are relatively well-represented in the fossil record, especially in Europe and Northern Africa, ever since their first occurrence in the Lower Jurassic. The group shows an increase in diversity and abundance at the end of the Jurassic. In Argentina, cassiduloids are represented from the Middle Jurassic upwards. This paper describes a Tithonian cassiduloid from the Picún Leufú Formation (Neuquén Basin, Argentina) identified as Mepygurus? andinus new comb. according to the poorly developed bourrelets, straight phyllodes that are continuous up to the margin, and a subpentagonal outline. The species was originally described from the Baños del Flaco Formation on the Chilean slope of the Neuquén-Aconcagua Basin. This record extends the stratigraphical range of the genus to at least the Tithonian and provides further evidence to the interpretation of the spatial continuity of shallow-water platforms during the Late Jurassic in the Andean region.

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Embryonic, larval, and post-metamorphic development of the sea urchin Cassidulus mitis (Echinoidea; Cassiduloida): an endemic brooding species from Rio de Janeiro, Brazil

Cited by 9 publications

References 26 publications

Oceanic circulation, local upwelling and palaeoclimatic changes linked to the phylogeography of the Cape sea urchin Parechinus angulosus

Oceanic circulation, local upwelling and palaeoclimatic changes linked to the phylogeography of the Cape sea urchin Parechinus angulosus

Catalogue of living crinoids (Echinodermata: Crinoidea) from Brazil

Late Jurassic Cassiduloids (Echinodermata, Echinoidea) from West-Central Argentina: Taxonomic and Paleogeographic Implications

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