Sublittoral and bathyal Harpacticoida (Crustacea: Copepoda) of the Magellan region


Autoria(s): George, Kai Horst
Cobertura

MEDIAN LATITUDE: -54.414937 * MEDIAN LONGITUDE: -68.701944 * SOUTH-BOUND LATITUDE: -55.480000 * WEST-BOUND LONGITUDE: -70.941700 * NORTH-BOUND LATITUDE: -53.146700 * EAST-BOUND LONGITUDE: -66.075000 * DATE/TIME START: 1994-10-23T12:26:00 * DATE/TIME END: 1996-05-18T19:37:00

Data(s)

08/05/2005

Resumo

Two expeditions, undertaken in 1994 and 1996, provided quantitatively sampled material of sublittoral and bathyal meiobenthos from the Paso Ancho of the Straits of Magellan, the Beagle Channel, and the Patagonian continental slope (Chile). To investigate whether these distinct geographic areas might also be characterised by different harpacticoid assemblages, qualitative and quantitative analyses of Copepoda Harpacticoida were carried out. At supraspecific level 25 harpacticoid families were found, as well as several species that could not yet be assigned to any major harpacticoid taxon. Due to the high amount of collected Harpacticoida, detailed investigations at species level had to be restricted to six taxa, namely the Ancorabolidae, Argestidae, Cletodidae, Diosaccinae, Paramesochridae, and Paranannopinae. The corresponding specimens were assigned to 122 species in 52 genera. More than 80% of them are new to science. Qualitative comparisons of both species composition and species distribution allow the three areas to be distinguished in terms of species richness. However, statistical analyses confirm these results only partly. Similarity analyses applying non-metrical multidimensional scaling, as well as diversity analyses using the rarefaction method, suggest that the observed differences in distribution and diversity patterns are due to small-scale, local conditions, which may overlay possible large-scale ones.

Formato

application/zip, 3 datasets

Identificador

https://doi.pangaea.de/10.1594/PANGAEA.832411

doi:10.1594/PANGAEA.832411

Idioma(s)

en

Publicador

PANGAEA

Direitos

CC-BY: Creative Commons Attribution 3.0 Unported

Access constraints: unrestricted

Fonte

Supplement to: George, Kai Horst (2005): Sublittoral and bathyal Harpacticoida (Crustacea, Copepoda) of the Magellan region. Composition, distribution and species diversity of selected major taxa. Arntz, Wolf E, Lovrich, Gustavo A & Thatje, Sven (eds.) The Magellan-Antarctic connection: links and frontiers at southern high latitudes, Scientia Marina, 69 (Suppl. 2), 147-158, doi:10.3989/scimar.2005.69s2147

Palavras-Chave #<2 µm, >9 phi; A. australis; A. minutus; A. subdebilis; Acrenhydrosoma sp.; Adenopleurellidae; Ameiridae; Amphiascoides sp.; Amphiascoides subdebilis; Amphiascus minutus; Amphiascus sp.; Ancorabolidae; Area; Area/locality; Argestidae; Argestidae sp.; Arthropsyllus australis; AWI_BPP; Bentho-Pelagic Processes @ AWI; Bulbamphiascus sp.; C. latirostris; Canthocamptidae; Carolinicola sp.; Cerviniidae; Cletodes latirostris; Cletodes sp.; Cletodidae; Copepoda, other; Copepoda oth; Cristacoxidae; D. magellanicus; D50; Dendropsyllus magellanicus; Depth; DEPTH, sediment/rock; Diarthrodella sp.; Diosaccinae; Diosaccinae sp.; E. (O.) abyssi; E. (O.) monardi; E. (O.) oblongus; E. hopkinsi; E. littorale; Ectinosomatidae; Enhydrosoma hopkinsi; Enhydrosoma littorale; Enhydrosoma sp.; Eurycletodes (Oligocletodes) abyssi; Eurycletodes (Oligocletodes) monardi; Eurycletodes (Oligocletodes) oblongus; Eurycletodes sp.; Event; F. bougisi; F. sarsi; Fultonia bougisi; Fultonia sarsi; Fultonia sp.; H. abyssi; H. exigua; Haloschizopera abyssi; Haloschizopera exigua; Haloschizopera sp.; Harpacticidae; Huntemanniidae; Jonesiella sp.; Kliopsyllus sp.; L. typicus; L. whitsoni; Laophontidae; Laophontodes sp.; Laophontodes typicus; Laophontodes whitsoni; Leptastacidae; Leptopontiinae; Leptopsyllus sp.; M. abyssicola; M. soyeri; Median, grain size; Mesocletodes abyssicola; Mesocletodes soyeri; Mesocletodes sp.; Neobradyidae; Normanellidae; P. longifurcata; Paradanielssenia sp.; Paramesochra sp.; Paramesochridae; Paramesochridae sp.; Paramphiascella sp.; Paranannopidae sp.; Paranannopinae; Paranannopus sp.; Peltidiidae; Psammis sp.; Pseudomesochra longifurcata; Pseudomesochra sp.; Robertgurneya sp.; Rossapsyllus sp.; S. longicaudatus; S. oligochaeta; Sand; Schizopera sp.; Scottopsyllus sp.; Silt; Size fraction < 0.002 mm, > 9 phi, clay; Stenhelia sp.; Stylicletodes longicaudatus; Stylicletodes oligochaeta; Sum; Superornatiremidae; Tegastidae; Tetragonicipitidae; Thalestridae; Tisbidae; Typhlamphiascus sp.; Var.; Var. 1; Var. 10; Var. 11; Var. 12; Var. 2; Var. 3; Var. 4; Var. 5; Var. 6; Var. 7; Var. 8; Var. 9
Tipo

Dataset