Publication Date:
2023-07-10
Description:
Species richness and faunistic affinities of gammaridean and corophiidean amphipods from southern Tierra del Fuego were studied. The material was collected with dredges and grabs at 7 locations (15 sampling stations) in a range of 5 to 35 m depth. A total of 61 species belonging to 20 families and 43 genera were identified. The genera Cephalophoxoides, Ceradocopsis and Photis are reported for the first time from the Magellan region and 3 species belonging to Atyhts, hchyrocerus and Photis appear to be new to science. Most of the species collected belong to Phoxocephalidae, whereas most individuals were contained in the Stenothoidae and Lysianassidae s.l. The analysis of the faunistic affinities showed that 16 species (39%) are endemic to the Magellan region, 9 species (22%) extend to the south, 5 species (12.2%) to the north and 5 other species (12.2%) to both the north and south. In addition, 6 species extend beyond the Magellan region as far as Oceania.
Keywords:
Ampelisca sp.; Amphilochus marionis; Atyloella dentata; Atyloella magellanica; Atylus cf. villosus; Atylus sp.; Austroregia regis; BA; Bahia Aguirre, Beagle Channel, Tierra del Fuego; Bahia Buen Suceso, Beagle Channel, Tierra del Fuego; Bahia Slogget, Beagle Channel, Tierra del Fuego; Bahia Ushuaia, Beagle Channel, Tierra del Fuego; BB; Bircenna fulva; BS; BU; Cabo San Pio, Beagle Channel, Tierra del Fuego; Cephalophoxoides sp.; Ceradocopsis sp.; Corophium sp.; CP; DEPTH, sediment/rock; Dredge; DRG; Erikus dahli; Eusiroides monoculoides; Eusirus antarcticus; Fuegiphoxus fuegiensis; Gammaropsis dentifera; Gammaropsis deseadensis; Gammaropsis longitarsus; Gammaropsis sp.; Gondogeneia cf. antarctica; Gondogeneia cf. macradon; Gondogeneia cf. thurstoni; Gondogeneia gracilicauda; Gondogeneia patagonica; Haplocheira barbimana robusta; Heterophoxus videns; IG; Iphimedia magellanica; Iphimedia multidentata; Ischyrocerus sp.; Isla Gable, Beagle Channel, Tierra del Fuego; Jassa alonsoae; Lembos argentinensis; Liljeborgia cf. macrodon; Liljeborgia octodentata; Liljeborgia sp.; Location of event; Maera sp.; Notopoma sp.; Oedicerotides cf. macrodactylus; Optional event label; Paradexamine nana; Paramoera cf. fissicauda; Pariphimedia normani; Photis sp.; Phoxocephalopsis zimmeri; PM; Pseudiphimediella glabra; Pseudiphimediella nodosa; Pseudiphimediella sp.; Punta Moat, Beagle Channel, Tierra del Fuego; Stomacontion sp.; TdF-BA; TdF-BB; TdF-BS; TdF-BU; TdF-CP; TdF-IG; TdF-PM; Tryphosella schellenbergi; Tryphosites chevreuxi; Uristes serratus; van Veen Grab; Ventojassa georgiana; VGRAB
Type:
Dataset
Format:
text/tab-separated-values, 350 data points
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