Angelika Brandt

Senckenberg Research Institute · Department of Marine Zoology

Guerrero-Kommritz, Jürgen, Schmidt, Anja, Brandt, Angelika (2002): Paranarthrura Hansen, 1913 (Crustacea: Tanaidacea) from the Angola Basin, description of Paranarthrura angolensis n. sp. Zootaxa 116: 1-12, DOI: 10.5281/zenodo.155961

Regabellator abyssi n. sp., Saetoniscus meteori n. sp. et gen. n., Rapaniscus multisetosus n. sp. and Nannoniscus antennaspinis n. sp. are described from the Atlantic deep sea of the Angola Basin, Namibia. Sixty seven species of Nannoniscidae have been described. Forty two species including the 4 described here are known from the Atlantic Ocean. A...

Desmostylis gerdesi, a new species, was sampled in the Southern Ocean, Weddell Sea, off Kapp Norvegia at a depth 238 m from board of the R/V Polarstern in February of 1996. The new species differs from the only other species of Desmostylis, D. obscurus Brandt, 1992b, by its pleotelson, whose lateral margins do not bear sensory setae, which are pres...

Apseudesheroae Sieg, 1986 (Family Apseudidae) and Allotanaishirsutus (Beddard, 1886) (Family Tanaidae) are common Tanaidacea of the southern Magellanic region. The aim of the investigation is to elucidate the postmarsupial development of these tanaid species that differ in their biogeography. Population structures are analysed from size frequency d...

Storthyngura kussakini sp. nov. was sampled in the Southern Ocean at a depth of 181–182m from on board the RV Polarstern in February of 1996. The new species differs from all other Storthyngura by the narrow posterior legs, and from the most similar Storthyngura argentica George & Menzies, 1968 from the Scotia Sea by the absence of the dorsal spine...

Composition, abundance, and distribution of suprabenthos from a depth between 1 and 1.33 m above the seafloor were analysed. The samples were taken during ANT XV/3 with RV Polarstern in February and March 1998 by means of the supranet of an epibenthic sledge along two transects in the southern Weddell Sea (Vestkapp and Halley Bay) and one east of K...

The scavenging cirolanid isopod Natatolana obtusata was caught using primarily meat-baited traps at a station in the Weddell Sea at Kap Norvegica. The hindguts of most specimens were densely stuffed with meat from the traps. The anatomy and the ultrastructure of different sections of the digestive system are described. The large and extremely expan...

An extraordinary arthropod community is described from a piece of Baltic amber (Eocene). It contains 18 animal inclusions from three different classes, nine orders and nine families. They clearly indicate a so called heterogeneous taphocoenosis (a mixture of at least two different kinds of biocoenosies). A terrestrial habitat shown by mirid bugs, a...

Brandt, Angelika (2002): New species of Nannoniscidae (Crustacea, Isopoda) and Saetoniscus n. gen. from the deep sea of the Angola Basin. Zootaxa 88: 1-36, DOI: 10.5281/zenodo.155900

In November 1994 epibenthic sledge samples were taken in the Beagle Channel. This study presents the first systematic account of Tanaidacea of the Beagle Channel and an adjacent area on the Atlantic continental slope. The material of this part from the Magellan Strait comprised 2175 specimens and 27 species of eight families of Tanaidomorpha and tw...

Density of peracarid crustaceans (Amphipoda, Cumacea, Isopoda, Mysidacea and Tanaidacea) from epibenthic sledge samples is presented from Weddell Sea stations (Vestkapp and Halley Bay ANT XV-3). These data from both the supranet (1-1.3 m above the ground) and epinet (27-60 cm above the ground) of the epibenthic sledge are compared with samples take...

In November 1994 a first inventory of Tanaidacea from the Beagle Channel and at some stations of the Atlantic continental shelfwas obtained using epibenthic sledge samples. In total, 2175 specimens from 27 species of eight families of Tanaidomorpha and two families of Apseudomorpha were collected. Two species, Allotanais hirstutus (Beddard, 1886) a...

Poore, G.C.B. and Brandt, A., 2001. Plakarthrium australiense, a third species of Plak- arthriidae (Crustacea: Isopoda). Memoirs of Museum Victoria 58(2): 373-382. The Plakarthriidae share with four genera of Sphaeromatidae a flat habitus and a marginal row of setae on antenna 1, coxae and uropods, modified to maintain contact with the substrate. T...

Tridentella namibia n. sp. and 7. benguela n.sp. (Crustacea: Isopoda: Tridentellidae) are described from the shelf and slope off the coast of Namibia, southwestern Africa. A key is provided to all the 16 species in the genus and distributional information tabulated.

The distribution and structure of zoobenthic communities have been investigated in the northern North Atlantic. The principal goal of these studies is to assess the degree to which benthic community patterns depend on and/ or mediate carbon flux between the pelagic and benthic realms, as well as between seabed, sediment-water interface and benthic...

A short summary of some the most important hypotheses on the evolution of Southern Ocean peracarid crustaceans and some of the potential reasons for the high biodiversity of this taxon is presented. Besides the knowledge of horizontal and vertical distribution patterns of Southern Ocean peracarids, the importance of the evolution of the notothenioi...

During the expedition ANT XI/3 with RV Polarstern 17 multiple corers were taken in the Bellingshausen Sea. From this material only a single, immature isopod was sorted. This specimen is a manca II of a presumably new species of the genus Storthyngura. However, as it is immature and only a single specimen was sampled, more material of this species w...

The Joint Magellan Victor Hensen Campaign in 1994 focused on the biogeographic relationships of the Antarctic and Magellan fauna. The Peracarida and Mollusca sampled at 18 stations in the Beagle Channel by means of an epibenthic sledge were compared with the knowledge about the distribution of species data from the Falkland Islands, South Georgia,...

The early separation of Gondwana and the subsequent isolation of Antarctica caused a long evolutionary history of its fauna. Both, long environmental stability over millions of years and habitat heterogeneity, due to an abundance of sessile suspension feeders on the continental shelf, favoured evolutionary processes of “preadapted“ taxa, like for e...

Two specimens of Dolichiscusspinosetosus were collected by means of an Agassiz trawl and a small dredge in the Weddell Sea, Antarctica. This species is characterized by a large number of strong spines on the dorsal side, some of these possessing tubercular tips. The dorsum is characterized by many smaller and shorter blunt spines and numerous long...

The Joint Magellan 'Victor Hensen' Campaign in 1994 focused on the biogeographic relationships of the Antarctic and Magellan fauna. The Peracarida and Mollusca sampled at 18 stations in the Beagle Channel by means of an epibenthic sledge were compared with the knowledge about the distribution of species data from the Falkland Islands, South Georgia...

The early separation of Gondwana and the subsequent isolation of Antarctica caused a long evolutionary history of its fauna. Both, long environmental stability over millions of years and habitat heterogeneity, due to an abundance of sessile suspension feeders on the continental shelf, favoured evolutionary processes of "preadapted" taxa, like for e...

During the expedition ARK XI-2 with RV Polarstern in September/October 1995, a transect of samples was taken off East Greenland from the shelf down to about 1800 m depth by means of an epibenthic sledge and a giant box corer, in order to obtain information on epibenthic and endobenthic macrofauna. Within the epibenthic sledge catches, the Cumacea w...

The early separation of Gondwana and the subsequent isolation of Antarctica caused a long evolutionary his- tory of its fauna. Both, long environmental stability over millions of years and habitat heterogeneity, due to an abundance of sessile suspension feeders on the continental shelf, favoured evolutionary processes of "preadapted" taxa, like for...

During the Joint Chilean–German–Italian Magellan ‘Victor Hensen’ Campaign in 1994 an epibenthic sledge (EBS) was used to catch the epibenthic and benthic-boundary-layer macrofauna. Eighteen EBS samples were taken at 12 locations on a transect through the Beagle Channel. The aims of the study were to describe the epibenthic molluscan species, to qua...

An inventory of Antarctic and Subantarctic mysid fauna is presented, together with a summary of the present state of knowledge of species and their taxonomic diversity, geographic and bathymetric distribution patterns. Fifty nine species of Mysidacea (Crustacea, Peracarida) are now known. Of these, 37 were reported for the Antarctic region and 31 f...

During three expeditions with the RVs Meteor and Polarstern more than sixty thousand peracarids were sampled from the deep Arctic Ocean (northern North Atlantic) by means of an epibenthic sledge. Sampling areas were the Kolbeinsey Ridge north of Iceland (800–1100 m), the Northeast Water Polynya, off Greenland (45–517m), and 75N east of Greenland (1...

During the joint Chilean-German-Italian Magellan “Victor Hensen” Campaign in November 1994, samples were taken on a cruise of the RV Victor Hensen in order to obtain faunistic information from the Beagle Channel. Peracarida are an important fraction of the macrobenthos and were sampled in high numbers. Using an epibenthic sledge, 104,618 individual...

Calathura brachiata (Stimpson, 1853) has been found in the North Atlantic, north of Iceland and northeast of Greenland; 750 specimens have been investigated. Although this species is quite large and widely distributed, the identification was complicated by the fact that the synonymy with Calathura norvegica (Sars, 1872) and Anthura arctica (Heller,...

Zooplankton were quantitatively investigated in sediment trap samples deployed in the Greenland Sea at three locations (72°00.7'N, 7°02.5'W, 72°23.0'N, 7°42.7'W and 72°22.9'N, 7°42.7'W). Overall samples covered a period of three annual cycles (July 1989 to July 1992). The investigation of zooplankton, consisting almost exclusively of Crustacea (> 9...

During an expedition with RV Polarstern in 1994 samples were taken at 75°N off Greenland, by means of an epibenthic sledge, which was equipped with an epi- and an additional suprabenthic net with an opening 1–1.33 m above the seafloor. Within the Peracarida (Crustacea, Malacostraca) sampled, 12 species were more frequent in the suprabenthic net, wh...

Manca 1, preparatory female, and adult male stages of Munnopsurus giganteus, found at different localities in the North Atlantic, are described in full. Differences between stages and sexual dimorphism are illustrated and described. Analyses of the gut content of the adult specimens have been done. About 30% of the total gut volume was found to con...

Benthic community patterns were investigated in the Northeast Water polynya (Greenland) during the summers of 1992 and 1993 to elucidate to what extent the bottom fauna is influenced by the dynamics of the overlying water. Five different fractions of the benthos (foraminiferans, nematodes, polychaetes, peracarid crustaceans, and epibenthic megafaun...

 During an expedition of RV Polarstern in 1994, a vertical transect (about 200-, 300-, 450-, 800-, 1,500- and 2,200-m depth) and a horizontal transect (of three stations at about 800-m depth) were sampled at 75°N off Greenland with an epibenthic sledge in order to obtain information on the abundance, diversity and community patterns of epi- and sup...

During the expedition ARK IX-2/3 with RV ''Polarstern'' to the Northeast Water Polynya (NEW-Polynya), off Greenland, a station in the Westwind Trough was revisited seven times. Successful samples were taken by means of a box corer seven times over 2 months (May-July 1993) and by an epibenthic sledge (EBS) five times over a period of six weeks. One-...

The species composition of Crustacea, Peracarida was investigated over a period of almost three months in the Northeast Water Polynya (NEW) off Greenland. Samples were collected in May - July 1993 during the Polarstern expedition ARK IX/2-3 using an epibenthic sledge. Within the macrobenthos on the shelf, peracarids were an important component, bes...

The isopod Caecognathia robusta (G.O. Sars, 1879) is recorded from the suboscular cavity of the demosponge Geodia mesotriaena (Hentschel, 1929) from the north east Greenland slope. Adult males and females as well as early larval stages were found. The size of G. mesotriaena ranged from 3 to 115 mm diameter, with oscular sizes of < 0.5-11 mm diamete...

A new type of epibenthic sledge is presented, which possesses an additional supranet above the epinet. Both nets are closed by an opening/closing device in the water column. The new construction allows a selective catch ofhigher suprafauna, which swims 1–1.33m above the seafloor, and a good discrimination between real suprafauna and epifauna. In to...

Composition, abundance, and diversity of peracarids (Crustacea) were investigated over a period of 3 mo in the Northeast Water Polynya (NEW), off Greenland. Samples were collected from May to July 1993 during expeditions ARK IX/2 and 3 using an epibenthic sledge on RV 'Polarstern'. Within the macrobenthic community peracarids were an important comp...

Until now the dajid isopod species Zonophryxus quinquedens Barnard, 1913 was only described from off Cape Point, South Africa. By collecting one male and three female specimens from the Weddell Sea, Antarctica, the known range of the species and genus has to be extended to 6958.9S 0508.5E. One female specimen was found attached to the dorsal carapa...

On the Kolbeinsey Ridge, north of Iceland, 92 species of peracarid crustaceans were sampled using the epibenthic sledge. For an analysis of the multispecies distribution pattern across the ridge, a total of 46 species have been considered, which occurred at least at two stations and with at least 5% relative abundance at any one station. The analys...

Notophryxus clypeatus has been found on the Kolbeinsey Ridge, north of Iceland parasitizing on the mysid Pseudomma truncatum Smith, 1879. A description of the morphology of this poorly known and twice before reported species is presented together with line drawings and SEM pictures.

Composition, abundance, and diversity of Crustacea Peracarida were investigated on a transect across the Kolbeinsey Ridge, north of Iceland in summer 1992 during the M21/5 expedition with RV Meteor. This ridge is influenced by both the cold East Greenland Current as well as the warmer East Iceland Current, mixing with warmer Atlantic water. Samplin...

This paper deals with a poorly known species, Ianthopsis pulchra (Hansen, 1916), found on the Kolbeinsey Ridge, north of Iceland (North Atlantic) during the expedition M21-5 with RV Meteor. The species was thought to be a member of the family Acanthaspidiidae, however, a detailed study, including comparison with the type material of Hansen from the...

An analysis of the horizontal and the vertical zonation of the Antarctic Isopoda, combined with knowledge of the geological history of Antarctica and isopod phylogeny, revealed that the isopod family Serolidae and subfamily Arcturinae are likely to have evolved from ancestors that inhabited a cold-temperate Gondwanian province. Antarctic species of...

A comparison of the EPOS leg 3 material of Weddell Sea Isopoda with the known literature data revealed some new results for the horizontal and vertical distribution of isopods in the eastern Weddell Sea. The number of isopod species known for the Weddell Sea almost doubled to 118 species. New results on the vertical distribution of 11 isopod genera...

A new species of Coperonus, C. pinguis, is described from the Antarctic deep sea. It is the first record of an Antarctic deep-sea species in this genus and the southernmost record of Coperonus.

Echinozonequadrispinosa (Beddard, 1886) is reduced to synonymy with E.spicata (Hodgson, 1910). A key is given to the four Antarctic species together with biogeographical information.

Die vorliegende Arbeit zeigt eine Nachbeschreibung der Art Pseudidothea scutatas (Stephensen, 1947), die an einem gut erhaltenen Tier aus einem Magen von Notothenia gibberifrons erfolgte. Phylogenetisch wichtige Merkmale von Pseudidothea werden diskutiert. Es wird angenommen, daß die Morphologie von Pseudidothea eine Anpassung an ihre mikrophage Er...

Detailed redescriptions of the poorly known isopods Cymodocellatubicauda Pfeffer 1887 and Exosphaeromagigas (Leach 1818) are presented in order to allow easier identification of these two species. Similarities to and differences from other species of the genus are discussed.

The isopod Sphaeroma hookeri and many other isopods and peracarids have a sensory spine with laterally inserting sensory hair, positioned in the apical region of the propodal palm of pereopod 1. This spine is innervated by five to eight sensory cells (each giving rise to one cilium) the dendrites of which can be divided into an inner and outer dend...

Antarcturus bovinus n. sp. (Isopoda, Valvifera) is described from the Antarctic Peninsula and the western and southern Weddell-Sea. This species can easily be recognized by the absence of large spines, the spine armature of the dorsal surface characteristic of other species is lacking. Only A. antarcticus Bouvier, 1910, A. coppingeri Miers, 1881, A...

A new genus (Protognathia) and family (Protognathiidae) are described for Cirolana bathypelagica Schultz, 1977. The morphology of this unique species proves that the Gnathiidae are closely related to the Cirolanidae. The characters of P. bathypelagica are intermediate between the carnivorous cirolanids and the highly specialized gnathiid fish paras...

A third species of the hypogean genus Curassanthura Kensley, 1981 (Isopoda, Anthuridea, Paranthuridae) is described from a cave on Bermuda. C. bermudensis n. sp. is very similar to C. halma Kensley, 1981, hitherto known from Curaçao, and now also recorded from new localities on Bonaire.

Tested L. Burke's (see record 1954-02063-001) finding that in the amodal completion of a movement, as in the tunnel effect, there is a phenomenal dilatation of the time required for completion. Results of the current experiment support Burke's findings and parallel the phenomenal shrinkage of space shown by G. Kanizsa (see record 1973-22194-001)....

Abstract Based on our current knowledge about population genetics, phylogeography and speciation, we begin to understand that the deep sea harbours,more,species than suggested in the past. Deep-sea soft-sediment environment,in particular hosts a diverse and,highly endemic,invertebrate fauna. Very little is known,about,evolutionary,processes,that ge...