New records of marine tardigrades from Brazil

Rocha, Clélia Márcia Cavalcanti da; Santos, Érika; Júnior, Edivaldo Lima Gomes; Moura, Juliana da Rocha; Silva, Luíza Gabriela Santana e; Barbosa, Débora Ferreira

doi:10.4081/jlimnol.2013.s1.e12

Cited by 3 publications

(3 citation statements)

References 9 publications

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“…nov. are known only near their type localities and their distributions do not cross any known dispersal barrier Bussau 1992;. However, A. clavifera and A. lingua are also known from localities distant from their type localities (Noda 1985(Noda , 1994Bussau 1992;Da Rocha et al 2013;Okanishi et al 2016). Angursa clavifera is known from a beach in the Ryukyu Islands (Noda 1994) far apart from other beaches in the Japanese Islands (type locality) (Noda 1985).…”

Section: Morphologymentioning

confidence: 99%

“…According to the morphology reported (Okanishi et al 2016), the specimen definitely belongs to the A. bicuspis group, but there is no positive evidence to support its species identity as A. clavifera and we regard this report as a record of an unidentified species. The reports of A. lingua from the Brazilian continental shelf (20 m and 100 m deep) (Da Rocha et al 2013) has been suspected by Kaczmarek et al (2015) since the species was originally described from Peruvian abyssal depths (4140-4170 m) (Bussau 1992). In addition to this ecological perspective, we would like to note that the two localities (Bussau 1992;Da Rocha et al 2013) are intervened by the Panama Isthmus.…”

mentioning

confidence: 99%

“…The reports of A. lingua from the Brazilian continental shelf (20 m and 100 m deep) (Da Rocha et al 2013) has been suspected by Kaczmarek et al (2015) since the species was originally described from Peruvian abyssal depths (4140-4170 m) (Bussau 1992). In addition to this ecological perspective, we would like to note that the two localities (Bussau 1992;Da Rocha et al 2013) are intervened by the Panama Isthmus. This geological barrier is already known to restrict the gene flow of meiofauna (nemertean genus Ototyphlonemertes Diesing, 1863: Leasi et al 2016) and we reckon the two populations have undergone cryptic speciation.…”

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confidence: 99%

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Revision of Angursa (Arthrotardigrada: Styraconyxidae) with the description of a new species from Japan

Fujimoto

Hansen

2019

EJT

971

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We re-examined the type material of five of the seven described species of the marine tardigrade genus Angursa Pollock, 1979, namely, A. abyssalis Renaud-Mornant, 1981, A. bicuspis Pollock, 1979 (type species), A. capsula Bussau, 1992, A. lanceolata Renaud-Mornant, 1981, and A. lingua Bussau, 1992. In addition, we describe A. seisuimaruae sp. nov. from the Sea of Kumano, Japan. Based on new data obtained, we amend the diagnosis of this genus, provide a taxonomic key to species, and discuss their geographical distributions.

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Section: Morphologymentioning

confidence: 99%

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confidence: 99%

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confidence: 99%

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Revision of Angursa (Arthrotardigrada: Styraconyxidae) with the description of a new species from Japan

Fujimoto

Hansen

2019

EJT

971

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Tardigrades Research in Brazil: an overview and updated checklist

Barros¹

2020

Arq. Zool.

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Tardigrades are microscopic animals, commonly referred to as “water bears”, and comprise the phylum Tardigrada. They are found in diverse habitats in terrestrial, freshwater and marine environments worldwide. In this paper, it is presented a brief history of the study of tardigrades in Brazil and an updated species checklist of Brazilian tardigrades. Since the first report in 1913, the number of tardigrades records has increased, reflecting advances in the understanding the diversity of tardigrades in Brazil. A total of 100 species known from Brazil are listed, being 30 in marine and 70 in terrestrial and freshwater environments. The records are concentrated in Southeast (47.1%) and Northeast (41.3%) regions. Despite the advances, further research and sampling of new areas is still needed, besides reanalysis and confirmation of old records. Brazil, with its vast territory, extensive continental shelf and great diversity of biomes, has great potential to expand our knowledge of tardigrades fauna.

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The coastal marine Tardigrada of the Americas

Miller

Perry

2016

Zootaxa

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The Western Hemisphere or the New World, also known as the Americas (North, Central and South America, associated islands and included seas) have historically been divided into two Realms, the Nearctic and Neotropical based on terrestrial biogeography. The coasts of these two terrestrial realms are bordered by six marine realms, 14 marine provinces and 67 marine ecoregions. From current literature, a comprehensive list of the marine tardigrade fauna from the Americas is presented. Data on marine tardigrades were obtained from 385 published Records of the Occurrence (RoO) of a species, their location, tidal zone, and the substrates from which they were reported. Authors' identifications were accepted at face value unless subsequently amended. Thirty genera and 82 species or subspecies are reported from the Americas; 49 species are documented from margins of the terrestrial Nearctic realm (North America) and 48 from terrestrial Neotropical realm (South America) with only 17 species occurring in both. We define cosmopolitan distribution for marine tardigrades as occurring in or on the margins of five of the seven oceans, only two species of marine tardigrade meets this standard. From the Americas 39 species have been described as new to science, 32 species appear restricted to the hemisphere. Taxa were assigned to marine ecoregions based on adjacent geopolitical units (country, states, provinces, etc.) described in published records. Although tardigrades have been reported from all six marine realms, they are only known from 21 of the 67 ecoregions. Most marine tardigrade sampling in the Americas has focused on near shore substrate (sand, mud, barnacles); for some species no substrates have been reported. The west coasts of both continents have little or no data about tardigrade presence.

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New records of marine tardigrades from Brazil

Abstract: In studies developed in the mid-and infralittoral of Cupe beach (Pernambuco)

Cited by 3 publications

References 9 publications

Revision of Angursa (Arthrotardigrada: Styraconyxidae) with the description of a new species from Japan

Revision of Angursa (Arthrotardigrada: Styraconyxidae) with the description of a new species from Japan

Tardigrades Research in Brazil: an overview and updated checklist

The coastal marine Tardigrada of the Americas

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