Multi-ocean distribution of a brooding predator in the abyssal benthos DOI Creative Commons

Anne‐Nina Lörz,

Martin Schwentner, Simon Bober

et al.

Scientific Reports, Journal Year: 2023, Volume and Issue: 13(1)

Published: Sept. 22, 2023

Abstract How far are species distributed on the abyssal plains? Spanning from 3000 to 6000 m below sea level, plains cover three-quarters of ocean floor and largest but also least explored habitat Earth. The question vertical horizontal distribution is central understanding biogeographic population genetic processes within inhabiting deep-sea benthos. Amphipod crustaceans an important dominant taxon in this ecosystem. As they brooders, their dispersal capacities more limited compared with free-swimming larvae, exception a few scavenging amphipods restricted single ocean. Based integrative taxonomic approach (morphology, COI, 16S 18S) we demonstrate occurrence predatory amphipod species, Rhachotropis abyssalis , three oceans: Antarctic Ross Sea, Northwest Pacific North Atlantic; regions than 20,000 km apart. Although such extensive geographic distributions may represent rare for brooding predators, these findings might be no at all, reflection sampling investigation invertebrate predators deep-sea. Our highlight our abysmal state knowledge regarding biodiversity biogeography plains.

Language: Английский

Exploring the diversity of the deep sea—four new species of the amphipod genus Oedicerina described using morphological and molecular methods DOI Creative Commons
Anna Jażdżewska, Angelika Brandt, Pedro Martínez Arbizu

et al.

Zoological Journal of the Linnean Society, Journal Year: 2021, Volume and Issue: 194(1), P. 181 - 225

Published: April 17, 2021

Abstract Collections of the amphipod genus Oedicerina were obtained during six expeditions devoted to study deep-sea environments Pacific Ocean. The material revealed four species new science. Two (Oedicerina henricisp. nov. and teresae sp. nov.) found at abyssal depths central eastern in Clarion-Clipperton Zone; one claudei was recovered Sea Okhotsk (north-west Pacific), lesci abyss adjacent Kuril-Kamchatka Trench (KKT). differ from each other known by shapes rostrum, coxae 1 4, basis pereopod 7, armatures pereonite pleonites urosomites. An identification key for all is provided. cytochrome c oxidase subunit I gene ingolfi collected North Atlantic confirmed their genetic distinction. However, small intraspecific variation within studied observed. In case occurring across KKT, same haplotype on both sides trench, providing evidence that trench does not constitute an insurmountable barrier population connectivity. None have so far been Pacific.

Language: Английский

Citations

44
Potential contribution of surface-dwelling Sargassum algae to deep-sea ecosystems in the southern North Atlantic DOI
Philip J. Baker,

Ulrike Minzlaff,

Alexandra Schoenle

et al.

Deep Sea Research Part II Topical Studies in Oceanography, Journal Year: 2017, Volume and Issue: 148, P. 21 - 34

Published: Oct. 14, 2017

Language: Английский

Citations

51
Alpha and beta diversity patterns of polychaete assemblages across the nodule province of the eastern Clarion-Clipperton Fracture Zone (equatorial Pacific) DOI Creative Commons
Paulo Bonifácio, Pedro Martínez Arbizu, Lénaïck Menot

et al.

Biogeosciences, Journal Year: 2020, Volume and Issue: 17(4), P. 865 - 886

Published: Feb. 20, 2020

Abstract. In the abyssal equatorial Pacific Ocean, most of seafloor Clarion-Clipperton Fracture Zone (CCFZ), a 6 million km2 polymetallic nodule province, has been preempted for future mining. light large environmental footprint that mining would leave and given diversity vulnerability fauna, International Seabed Authority implemented regional management plan includes creation nine Areas Particular Environmental Interest (APEIs) located at periphery CCFZ. The scientific principles design APEIs were based on best – albeit very limited knowledge area. fauna habitats in are unknown, as species' ranges extent biodiversity across As part Joint Programming Initiative Healthy Productive Seas Oceans (JPI Oceans) pilot action “Ecological aspects deep-sea mining”, SO239 cruise provided data to improve species inventories, determine ranges, identify drivers beta patterns assess representativeness an APEI. Four exploration contract areas APEI (APEI no. 3) sampled along gradient sea surface primary productivity spanned distance 1440 km eastern Between three eight quantitative box cores (0.25 m2; 0–10 cm) each study area, resulting collection polychaetes morphologically molecularly (cytochrome c oxidase subunit I 16S genes) analyzed. A total 275 polychaete morphospecies identified. Only one was shared among all five 49 % singletons. community structure composition mainly attributed variations organic carbon fluxes scale density local scale, thus supporting main assumptions underlying APEIs. However, 3, which is oligotrophic province separated from CCFZ by Clarion Zone, showed lowest densities, diversity, low distant independent similarity compared areas, questioning appropriateness 3 meet its purpose preservation. Among four contracts, belong mesotrophic decay turnover 0.04 km−1, average range 25 extrapolated richness up 240 000 By contrast, nonparametric estimators predict 498 species. Both estimates biased high frequency singletons dataset, likely result under-sampling merely reflect our level uncertainty. assessment potential risks scales loss due requires appropriate inventory

Language: Английский

Citations

50
Adult life strategy affects distribution patterns in abyssal isopods – implications for conservation in Pacific nodule areas DOI Creative Commons
Saskia Brix, Karen J. Osborn, Stefanie Kaiser

et al.

Biogeosciences, Journal Year: 2020, Volume and Issue: 17(23), P. 6163 - 6184

Published: Dec. 9, 2020

Abstract. With increasing pressure to extract minerals from the deep-sea bed, understanding ecological and evolutionary processes that limit spatial distribution of species is critical assessing ecosystem resilience mining impacts. The aim our study gain a better knowledge about abyssal isopod crustacean fauna central Pacific manganese nodule province (Clarion–Clipperton Fracture Zone, CCZ). In total, we examined 22 epibenthic sledge (EBS) samples taken at five areas located in northern including four contracting one Area Particular Environmental Interest (APEI3). Additional come DISturbance reCOLonization experiment (DISCOL) area situated Peru Basin, southeastern Pacific. Using an integrative approach combined morphological genetic methods with delimitation analyses (SDs) assessed patterns range size, diversity, community composition for different families (Munnopsidae Lilljeborg, 1864; Desmosomatidae Sars, 1897; Haploniscidae Hansen, 1916; Macrostylidae 1916) displaying dispersal capacities as adults. Isopods are brooders, so their connectivity cannot be explained by larval but rather adult locomotion. particular, objectives were (1) identify potential differences distributional ranges relative locomotory (2) evaluate representativeness APEI preservation regional biodiversity CCZ following disturbances. From 619 specimens, SD analysis could distinguish 170 species, most which new science (94.1 %). We found increased ability correlated higher diversity 9 Macrostylidae, 23 Haploniscidae, 52 Desmosomatidae, 86 Munnopsidae. This supported family-level rarefaction analyses. As expected, largest swimming abilities, maximum recorded 5245 4480 km Munnopsidae respectively. less motile had maximal 1391 1440 km, Overall, indicated richness did not vary much between areas, real number was still sufficiently sampled. also large proportion singletons (40.5 %) this study. investigated contractor more similar shared each other than closely APEI3 distantly DISCOL area. fact, area, common core APEI3. regard, does appear representative serving reservoir least isopods, it has composition. Certainly, data APEIs, well reference zones within urgently needed order assess resources recolonization impacted seabed.

Language: Английский

Citations

41
Ocean Species Discoveries 1–12 — A primer for accelerating marine invertebrate taxonomy DOI Creative Commons

Senckenberg Ocean Species Alliance,

Angelika Brandt, Chong Chen

et al.

Biodiversity Data Journal, Journal Year: 2024, Volume and Issue: 12

Published: Aug. 6, 2024

Discoveries of new species often depend on one or a few specimens, leading to delays as researchers wait for additional context, sometimes decades. There is currently little professional incentive single expert publish stand-alone description. Additionally, while many journals accept taxonomic descriptions, even specialist expect insights beyond the descriptive work itself. The combination these factors exacerbates issue that only small fraction marine are known and discoveries described at slow pace, they face increasing threats from accelerating global change. To tackle this challenge, first compilation

Language: Английский

Citations

6
Does the Mid-Atlantic Ridge affect the distribution of abyssal benthic crustaceans across the Atlantic Ocean? DOI
Simon Bober, Saskia Brix, Torben Riehl

et al.

Deep Sea Research Part II Topical Studies in Oceanography, Journal Year: 2018, Volume and Issue: 148, P. 91 - 104

Published: Feb. 1, 2018

Language: Английский

Citations

46
Depth zonation of Northwest Pacific deep-sea macrofauna DOI
Angelika Brandt, Inna L. Alalykina, Saskia Brix

et al.

Progress In Oceanography, Journal Year: 2019, Volume and Issue: 176, P. 102131 - 102131

Published: July 10, 2019

Language: Английский

Citations

43
Discovery of widely available abyssal rock patches reveals overlooked habitat type and prompts rethinking deep-sea biodiversity DOI Creative Commons
Torben Riehl, Anne‐Cathrin Wölfl, Nico Augustin

et al.

Proceedings of the National Academy of Sciences, Journal Year: 2020, Volume and Issue: 117(27), P. 15450 - 15459

Published: June 18, 2020

Habitat heterogeneity and species diversity are often linked. On the deep seafloor, sediment variability hard-substrate availability influence geographic patterns of richness turnover. The assumption a generally homogeneous, sedimented abyssal seafloor is at odds with fact that faunal in some regions exceeds shallow-water environments. Here we show, using ground-truthed analysis multibeam sonar data, may be much rockier than previously assumed. A combination bathymetry ruggedness, backscatter from trans-Atlantic corridor along Vema Fracture Zone, covering crustal ages 0 to 100 Ma, show rock exposures occurring all ages. Extrapolating whole Atlantic, over 260,000 km2 habitats potentially occur Atlantic fracture zones alone, significantly increasing our knowledge about habitat heterogeneity. This implies sampling campaigns need considerably more sophisticated present capture full deep-sea biodiversity.

Language: Английский

Citations

38
Global Deep-Sea Biodiversity Research Trends Highlighted by Science Mapping Approach DOI Creative Commons
Corrado Costa, Emanuela Fanelli, Simone Marini

et al.

Frontiers in Marine Science, Journal Year: 2020, Volume and Issue: 7

Published: June 16, 2020

The scientific literature available on deep-sea biodiversity is ample and covers a wide array of objectives, geographic areas topics. It also the exploration links between ecosystem functioning productivity, as well modelling, management exploitation. New informatics tools now allow comprehensive monitoring status research, in order to highlight global research topics their trends, which deserve further development economic investments. Here, we used science mapping approach provide systematic bibliometric synthesis these current identify size, growth, trajectory, distribution efforts, emerging A total 1,287 publications were retrieved from Scopus databases 1993 present. Established identified: i. biogeochemical, microbial molecular analyses; ii. measures; iii. ecosystems conservation management; finally, iv. zoology taxocoenosis. temporal change activity (by subdividing into 1993-2010 2011-2019 blocks) evidenced how "biogeochemical, analyses" cluster was not present 2010, since included one for "biodiversity measures", showing emancipation following couple decades. dominant role US followed by United Kingdom, Germany France evidenced, with China particularly associated former.

Language: Английский

Citations

37
Composition of abyssal macrofauna along the Vema Fracture Zone and the hadal Puerto Rico Trench, northern tropical Atlantic DOI
Angelika Brandt, Inmaculada Frutos, Simon Bober

et al.

Deep Sea Research Part II Topical Studies in Oceanography, Journal Year: 2017, Volume and Issue: 148, P. 35 - 44

Published: July 26, 2017

Language: Английский

Citations

37