Atlas of Antarctic and sub-Antarctic Brachiopoda

Emig, Christian C.

doi:10.4267/2042/62545

Cited by 7 publications

(9 citation statements)

References 44 publications

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“…Further to this, both tropical and temperate intertidal and shallow wetlands can be highly diverse, which is Proportion of total number of global species present in the Southern Ocean for several major animal groups. Data primarily from Clarke and Johnston (2003), updated using data by Linse et al (2006), Barnes and Griffiths (2008), Munilla and Soler Membrives (2009), O'Loughlin et al 2011, Emig (2017), Barnes (pers. comm.) (for bryozoans), and the World Register of Marine Species.…”

Section: Current Biodiversitymentioning

confidence: 99%

Oceanography and Marine Biology

Hawkins¹,

Evans²,

Dale³

et al. 2018

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Animals living in the Southern Ocean have evolved in a singular environment. It shares many of its attributes with the high Arctic, namely low, stable temperatures, the pervading effect of ice in its many forms and extreme seasonality of light and phytobiont productivity. Antarctica is, however, the most isolated continent on Earth and is the only one that lacks a continental shelf connection with another continent. This isolation, along with the many millions of years that these conditions have existed, has produced a fauna that is both diverse, with around 17,000 marine invertebrate species living there, and has the highest proportions of endemic species of any continent. The reasons for this are discussed. The isolation, history and unusual environmental conditions have resulted in the fauna producing a range and scale of adaptations to low temperature and seasonality that are unique. The best known such adaptations include channichthyid icefish that lack haemoglobin and transport oxygen around their bodies only in solution, or the absence, in some species, of what was only 20 years ago termed the universal heat shock response. Other adaptations include large size in some groups, a tendency to produce larger eggs than species at lower latitudes and very long gametogenic cycles, with egg development (vitellogenesis) taking 18-24 months in some species. The rates at which some cellular and physiological processes are conducted appear adapted to, or at least partially compensated for, low temperature such as microtubule assembly in cells, whereas other processes such as locomotion and metabolic rate are not compensated, and whole-animal growth, embryonic development, and limb regeneration in echinoderms proceed at rates even slower than would be predicted by the normal rules governing the effect of temperature on biological processes. This review describes the current state of knowledge on the biodiversity of the Southern Ocean fauna and on the majority of known ecophysiological adaptations of coldblooded marine species to Antarctic conditions. It further evaluates the impacts these adaptations have on capacities to resist, or respond to change in the environment, where resistance to raised temperatures seems poor, whereas exposure to acidified conditions to end-century levels has comparatively little impact. Zone Description Area (km 2) Length (km) Southern Ocean Total area (km 2)

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Section: Current Biodiversitymentioning

confidence: 99%

Oceanography and Marine Biology

Hawkins¹,

Evans²,

Dale³

et al. 2018

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“…Si, en France, l'édition d'une faune de France complète n'a jamais abouti, cela ne fut pas le cas des pays riverains. Citons les brachiopodes dans Synopses of the British Fauna : Brunton & Curry (1979) ; Fauna Ibérica : Álvarez & Emig (2005) ; Check-list della Fauna marina Italiana : Emig (2010b). La présente synthèse comble ainsi un vide qu'il n'était que temps d'accomplir.…”

Section: Les Brachiopodes Des Côtes Françaises Métropolitaines Introdunclassified

Brachiopodes actuels : historique et révision de la collection D.-P. Œhlert (Laval) ; brachiopodes des côtes françaises métropolitaines

Álvarez¹,

Emig²,

Tréguier³

2017

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“…Ten genera and 20 species are recorded from the Atlantic coast of Central and South America, distributed since Caribbean until Brazil, Uruguay and Argentina coasts (Zezina, 2008(Zezina, , 2010. However, studies on recent brachiopods in the Western South Atlantic Ocean are still scarce [e.g., Simões et al, 2004;Marques, 2018, both with articulate brachiopod fauna (Subphylum Rhynchonelliformea); Emig, 2017] Thus, the present study aims to describe the first occurrence of Lingulidae for the South Atlantic Ocean.…”

Section: Introductionmentioning

confidence: 97%

Recent Brachiopods From South Atlantic Ocean: First Occurrence of the Lingulidae and Its Biogeographic Implications

Monteiro

Franklin

Matthews-Cascon

et al. 2022

ACMAR

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The brachiopod fauna of the South Atlantic is significantly abundant and appears to be predominantly composed of cosmopolitan species. However, until now there was no record of inarticulate brachiopods of the Family Lingulidae in this region. The present study describes the first occurrence of lingulid brachiopods in the South Atlantic. Seven specimens were collected on the continental shelf of the Maranhão state, Northeastern Brazil, Western South Atlantic. The individuals were identified as belonging to the genus Lingula. Although brachiopods have great dispersion capability durintg their larval phase, the hypothesis that these specimens arrived on the Brazilian coast as a result of human activities cannot be ruled out. Keywords: Lingula, subfilo Linguliformea, “Inarticulata”, inarticulate brachiopods, Brazil.

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Atlas of Antarctic and sub-Antarctic Brachiopoda

Cited by 7 publications

References 44 publications

Oceanography and Marine Biology

Oceanography and Marine Biology

Brachiopodes actuels : historique et révision de la collection D.-P. Œhlert (Laval) ; brachiopodes des côtes françaises métropolitaines

Recent Brachiopods From South Atlantic Ocean: First Occurrence of the Lingulidae and Its Biogeographic Implications

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