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| Thomas, Elin A.; Liu, Ruoyu; Amon, Diva; Copley, Jon T.; Glover, Adrian G.; Helyar, Sarah J.; Olu, Karine; Wiklund, Helena; Zhang, Haibin; Sigwart, Julia D.. |
| Chemosynthetic ecosystems have long been acknowledged as key areas of enrichment for deep-sea life, supporting hundreds of endemic species. Echinoderms are among the most common taxa inhabiting the periphery of chemosynthetic environments, and of these, chiridotid holothurians are often the most frequently observed. Yet, published records of chiridotids in these habitats are often noted only as supplemental information to larger ecological studies and several remain taxonomically unverified. This study therefore aimed to collate and review all known records attributed to Chiridota Eschscholtz, 1829, and to conduct the first phylogenetic analysis into the relationship of these chiridotid holothurians across global chemosynthetic habitats. We show that... |
| Tipo: Text |
Palavras-chave: Deep sea; Chemosynthetic environments; Opportunism; Widespread; Echinoderms. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00660/77183/78609.pdf |
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| Prata,Jessica; Costa,Dimitri Araujo; Manso,Cynthia Lara de Castro; Crispim,Maria Cristina; Christoffersen,Martin Lindsey. |
| Abstract This study presents the species of echinoderms found inside rhodolith branches from Seixas Beach, State of Paraíba, Brazil, during one year of rhodolith sampling. A total of 64 specimens were analyzed and identified into 12 species, belonging to 11 genera, eight families and three classes. Brief taxonomic descriptions, figures and ecological notes for recorded species are provided. Ophiuroidea and Holothuroidea were the most representative taxa. Biogenic structures are an important habitat for young specimens and some small species of Echinodermata. Some species complete their life cycle in these structures, while others spend part of their life in these substrates and may also migrate to other habitats. The work complements the knowledge of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Echinoderms; Inventory; Brazilian coast. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032017000300304 |
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| Gonzalez-aravena, Marcelo; Calfio, Camila; Mercado, Luis; Morales-lange, Byron; Bethke, Jorn; De Lorgeril, Julien; Cardenas, Cesar A.. |
| Background Heat stress proteins are implicated in stabilizing and refolding denatured proteins in vertebrates and invertebrates. Members of the Hsp70 gene family comprise the cognate heat shock protein (Hsc70) and inducible heat shock protein (Hsp70). However, the cDNA sequence and the expression of Hsp70 in the Antarctic sea urchin are unknown. Methods We amplified and cloned a transcript sequence of 1991 bp from the Antarctic sea urchin Sterechinus neumayeri, experimentally exposed to heat stress (5 and 10 °C for 1, 24 and 48 h). RACE-PCR and qPCR were employed to determine Hsp70 gene expression, while western blot and ELISA methods were used to determine protein expression. Results The sequence obtained from S. neumayeri showed high identity with Hsp70... |
| Tipo: Text |
Palavras-chave: Hsp70; Coelomocytes; Antarctica; Echinoderms; Climate change. |
| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00435/54619/56019.pdf |
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