The epibenthic sledge.  

Contexts in source publication

Context 1

... and number of species from AGT-samples were found at the hadal stations at the area A1, A4 and A7 (8200-9580 m). The diversity of polychaetes at the hadal stations A9 and A11 was also lower than in the abyssal stations, but with rather high abundance of a few deposit-feeders species like Notomastus cf. latericeus, Cossura sp. and Brada sp. (Fig. 90). AGT EBS SO250_7, SO250_9, SO250_18, SO250_19, SO250_20, SO250_29, SO250_40, SO250_41, SO250_42, SO250_43, SO250_87, SO250_89, SO250_90, ...

Context 2

... or peanut worms (Fig. 92), constitute a well distinguished monophyletic group of exclusively marine non-segmented coelomate worms. Sipuncula were long considered a phylum, but are now more commonly included in the phylum Annelida based on phylogenetic and phylogenomic analyses (e.g. Struck et al. 2011). Whereas Stephen and Edmonds (1972) recognized ...

Context 3

... analysis will include comparison of cuticle structures together with inside characters. Unfortunally, the most useful character of sipnculans, the head morphology, cannot be used for the deep-sea species and only including of genetic analysis may shade light to the true species distribution and population structure. Echiura (spoon worms) (Fig. 93) is a group of marine worms that have a sausage-shaped body with an extensible scoop-like proboscis. Approximately 165-195 species of echiurans have been recorded (Biseswar, 2012). They always live in protected places and are well adapted for living in ...

Context 4

... some species from the AGT catches could be identified by specialists immediately after sorting, for the rest of taxa this was not possible. Due to this, the preliminary data on macro-and megabenthic faunal composition was presented here at macrotaxa level (Table 27, Fig. 95). The data on station 103 (Area A11) was not included here as the samples from that station were still not processed completely at the time of writing the ...

Context 5

... of mega-and microbenthic taxa composition was most prominent at areas A4, A7 and A9, located below 8000 m depth. In the deepest areas A4 and A7, holothurians of one species (Elpidia hanseni) accounted for a 55% and 88% (respectively) of all specimens obtained. Other 36% of specimens collected at area A4 belonged to a bivalve species Vesicomya sp. (Fig. 92). At area A9 these bivalves accounted for 51% of all specimens obtained. These results correspond with the opinion of Belyaev (1966), who mentioned upper hadal (6000 -7000 m) as a barrier for further depth colonization, probably, due to a limited ability of most taxonomic groups to tolerate higher pressure ...

Context 6

... at sea 15 species of ppiuroids (Fig. 97) were caught with the AGT and the EBS. After the first fixation in undenatured ethanol we took pictures of each specimen. Figure 98 shows the 4 most abundant morphospecies. From each specimen we cut an arm and put the specimen in a bag and the arm in a vial as a voucher. Both were fixed in ethanol again and labelled by the same ...

Context 7

... found 201 specimens of Ophiuroids belonging to 15 different morphospecies (Fig. 97). ...