Abyssal echinoid and asteroid fauna of the North Pacific

Миронов, А. Н.; Minin, K. V.; Dilman, Anna B.

doi:10.1016/j.dsr2.2014.08.006

Cited by 16 publications

(14 citation statements)

References 26 publications

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“…This is almost half (44.4%) of all species of the genus Hyalopecten discovered in the abyssal and hadal zones of the World Ocean. The relatively high species richness of deep-water Hyalopecten species in this region of the North-western Pacific is not a unique phenomenon and reflects high species richness of both the entire abyssal and hadal fauna of the region and individual taxonomic groups (Zenkevich et al ., 1955; Belyaev, 1989; Downey & Janussen, 2015; Elsner et al ., 2015; Mironov et al ., 2015). Examination of the materials collected by just one KuramBio expedition on the abyssal plain (4861–5787 m) adjacent to the Kuril-Kamchatka Trench has revealed 55 species of bivalves belonging to 21 families (Kamenev, 2015), which is much more diverse at the family level than the Atlantic deep-water bivalve fauna (Allen, 2008).…”

Section: Discussionmentioning

confidence: 99%

Three new species of the genusHyalopecten(Bivalvia: Pectinidae) from the abyssal and hadal zones of the North-western Pacific Ocean

Kamenev

2016

J. Mar. Biol. Ass.

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Three new species, Hyalopecten vityazi sp. nov., H. abyssalis sp. nov. and H. kurilensis sp. nov., are described from the abyssal and hadal zones of the North-western Pacific. Hyalopecten vityazi was found in the Kuril-Kamchatka and Aleutian trenches at 6090–8100 m depth. It is the most deep-water species of the order Pectinida. Hyalopecten abyssalis and H. kurilensis were found at the abyssal plain adjacent to the Kuril-Kamchatka and Aleutian trenches at 4550–5045 m depth. To date, 13 species of the genus Hyalopecten are known from different regions of the World Ocean. A table with the main differences among all known species in the genus is provided.

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Section: Discussionmentioning

confidence: 99%

Three new species of the genusHyalopecten(Bivalvia: Pectinidae) from the abyssal and hadal zones of the North-western Pacific Ocean

Kamenev

2016

J. Mar. Biol. Ass.

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“…After these early expeditions, 48 echinoid Lavrentyev (2010) and RV Sonne (2012. Publications from these expeditions has increased our knowledge of echinoid and asteroid diversity in deep NW Pacific, and added in 13 new species (Mironov et al 2015(Mironov et al , 2019aDilman et al 2019). distinguished the separate NW Pacific province in the abyssal World Ocean.…”

Section: Future Perspectivesmentioning

confidence: 99%

“…a -Mentioned as Hymenaster sp. in Mironov et al (2015) Taxonomy and biogeography of deep-sea Echinoidea and Asteroidea along the NW Pacific…”

Section: Biogeographic Patternsmentioning

confidence: 99%

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Biogeographic Atlas of the Deep NW Pacific Fauna

Saeedi¹,

Brandt²

2020

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We would like to thank the captains and crews of RVs 'Akademik M.A. Lavrentyev' and 'Sonne' , student helpers, and anyone else who contributed to sample management and sorting the specimens. Special thanks to Mark Costello for his advice and Marianna Simões for her help in this book project. A very special thanks to James Reimer for editing and English proofreading of this chapter and to Rachel Downey for English proofreading most of the chapters of this book.

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“…Some echinoderms are important ecosystem engineers in many marine systems since they provide shelter and refuge for juvenile fish recruits (Fonseca et al, 2014) and affect substrate characteristics through sediment bioturbation (Uthicke, 2001;Shiell and Knott, 2010) and accumulation of carbonate spines and skeletons after their death (Ogden, 1977). Their ecological importance and high abundance in benthic ecosystems make them good indicators of the marine ecosystem health (Gonzalez-Irusta et al, 2012;Mironov et al, 2014); however, little information on their diversity and ecological role in mesophotic ecosystems is available (Mecho et al, 2019;Pyle and Copus, 2019). This lack of information arises, in part, because the communities inhabiting seamounts and oceanic islands at mesophotic depths are largely understudied compared with shallower and deeper communities.…”

Section: Introductionmentioning

confidence: 99%

Environmental Drivers of Mesophotic Echinoderm Assemblages of the Southeastern Pacific Ocean

et al. 2021

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Mesophotic ecosystems (50–400 m depth) of the southeastern Pacific have rarely been studied because of the logistical challenges in sampling across this remote zone. This study assessed how oxygen concentrations and other environmental predictors explain variation in echinoderm assemblages at these mesophotic systems, where this group is among the predominant fauna. We compiled data on echinoderm taxa at 91 sampling stations, from historical and recent surveys (between 1950 and 2019), covering a longitudinal gradient of approximately 3,700 km along with the Nazca, Salas y Gómez, and Juan Fernández ridges. Uni- and multivariate model-based tools were applied to analyze the patterns of benthic fauna in relation to environmental factors. Our results indicate a significant positive relationship between echinoderm species richness and depth, oxygen, and salinity. Changes in echinoderm community composition were significantly explained by oxygen, longitude, and chlorophyll-a. We observed notable species turnovers at ∼101 and ∼86°W, where assemblages tend to be more variable across stations. This turnover possibly reflects the effects of physical barriers to dispersion (e.g., currents) and habitat changes. Echinoderm assemblages observed around Easter and Desventuradas Islands presented a high occurrence of potentially endemic taxa and distinct species assemblages. This study is the first to assess the structure of mesophotic echinoderm assemblages of the southeastern Pacific Ocean along a large spatial scale. The information reported here could help design appropriate management tools for the vast, recently created, marine protected areas in the southeastern Pacific.

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Abyssal echinoid and asteroid fauna of the North Pacific

Cited by 16 publications

References 26 publications

Three new species of the genusHyalopecten(Bivalvia: Pectinidae) from the abyssal and hadal zones of the North-western Pacific Ocean

Three new species of the genusHyalopecten(Bivalvia: Pectinidae) from the abyssal and hadal zones of the North-western Pacific Ocean

Biogeographic Atlas of the Deep NW Pacific Fauna

Environmental Drivers of Mesophotic Echinoderm Assemblages of the Southeastern Pacific Ocean

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