Dugongs in Australian Waters

Oryx ◽  
1966 ◽  
Vol 8 (4) ◽  
pp. 221-222 ◽  
Author(s):  
Colin Bertram ◽  
Kate Bertram
Keyword(s):  
Shallow Water ◽  
Aquatic Plants ◽  
Ecological Niche ◽  
Native People ◽  
North East ◽  
The North ◽  
Aquatic Mammals

In their 1965 survey of dugongs on the north-east Australian coast, Dr. Colin and Dr. Kate Bertram made the welcome discovery that these aquatic mammals, whose numbers were seriously reduced throughout their range in the last century and the early decades of this, are now holding their own here and may even in a few places be increasing. Dugong meat and oil are highly valued by some Australian native people, and the animals fill an important ecological niche as consumers of aquatic plants in shallow water.

scholarly journals Marine late Saalian to Eemian environments and climatic variability in the Danish shelf area

2000 ◽  
Vol 79 (2-3) ◽  
pp. 335-343 ◽  
Author(s):  
Marit-Solveig Seidenkrantz ◽  
Karen Luise Knudsen ◽  
Peter Kristensen
Keyword(s):  
Climate Variability ◽  
Shallow Water ◽  
Oxygen Isotope ◽  
Deep Water ◽  
Climatic Variability ◽  
Shelf Area ◽  
North East ◽  
The North ◽  
Mis 5E

AbstractThe marine Eemian (marine oxygen-isotope substage 5e: MIS 5e) is represented by shallow-water deposits in southern and western Denmark, while relatively deep-water environments occurred to the north and north-east, where complete interglacial successions seem to be present. We present an overview of the marine Eemian deposits in Denmark, and discuss in more detail indications of climate variability, both for the late Saalian and within the Eemian.

scholarly journals HOLOTHURIOIDEA (ECHINODERMATA) DE AGUAS SOMERAS EN LA COSTA NORTE DE COLOMBIA

2016 ◽  
Vol 10 ◽  
Author(s):  
Iván Enrique Caycedo
Keyword(s):  
Shallow Water ◽  
National Park ◽  
New Records ◽  
Northern Coast ◽  
North East ◽  
The North ◽  
Field Identification

Systematic and ecological remarks are presented on 14 species of shallow water holothurians of the northern coast of Colombia. The material was collected from Islas del Rosario off the coast southwest of Cartagena (10° 08' 39" Lat. N 75° 43, 21" Long. W) and from Tayrona National Park to the north east of Santa Marta (11° 20, Lat. N and 74 05, Long. W). Ten species are new records to Colombia, one of them appeared to be undescribed as yet (Holothuria thomaú sp. nov. Pawson & Caycedo, in preparation). A key to these species is given. The occurrence of some species in abundance in different habitats is discussed in order to elucidate ecological interrelationships and facilitate field identification.

scholarly journals Early Ordovician trilobites and molluscs from the Poulsen Cliff Formation, Washington Land, western North Greenland

1990 ◽  
Vol 38 ◽  
pp. 11-32
Author(s):  
R. A. Fortey ◽  
]. S. Peel
Keyword(s):  
Shallow Water ◽  
Siberian Platform ◽  
Gastropod Species ◽  
Early Ordovician ◽  
North East ◽  
The North ◽  
Close Relationship ◽  
North Greenland ◽  
Subjective Synonym

A well-preserved, shallow water bathyurid trilobite fauna of early Ordovician age, and associated gastropods and an undetermined hyolith are described from the Poulsen Cliff Formation of Washington Land, western North Greenland. Two new bathyurid species, Licnocephala sminue and Pe/tabellia elegans, and a new gastropod species, Plethospira(?) floweri, are described. Biolgina Maximova is considered a junior subjective synonym of Peltabellia Whittington. The distribution of the genus is an example of close relationship between shallow water trilobite faunas of Laurentia and the North-east Siberian platform in the early Ordovician.

Demosponge fauna of Ormonde and Gettysburg Seamounts (Gorringe Bank, north-east Atlantic): diversity and zoogeographical affinities

2007 ◽  
Vol 87 (6) ◽  
pp. 1643-1653 ◽  
Author(s):  
Joana Xavier ◽  
Rob van Soest
Keyword(s):  
Shallow Water ◽  
Geographical Distribution ◽  
Marine Biota ◽  
East Atlantic ◽  
North East ◽  
The North ◽  
Gorringe Bank ◽  
High Level ◽  
Evolutionary Aspects

Seamounts, although abundant features of the world's oceans, constitute one of the least studied marine ecosystems. In the present work we assessed the diversity and zoogeographical affinities of the demosponge assemblages of Gettysburg and Ormonde Seamounts (Gorringe Bank, north-east Atlantic). Twenty-three demosponge species were identified adding to the thirteen previously reported for Gorringe shallow-water. Gorringe's demosponge assemblage was found to be mainly composed of species with a wide Atlanto–Mediterranean distribution (61%) and a group of species (28%) that are endemic to this Bank or have a restricted geographical distribution. This high level of endemism suggests the Gorringe Bank as a hotspot for demosponge fauna in the north-east Atlantic. Gorringe demosponge fauna was found to present an overall moderate similarity to the Mediterranean, Iberian coasts and Macaronesian archipelagos. We compare our findings with patterns reported for fish and molluscan faunas for this Bank and discuss some evolutionary aspects on the role of these ecosystems for the north-east Atlantic marine biota.

A preliminary investigation of the lipids of abyssal holothurians from the north-east Atlantic Ocean

2000 ◽  
Vol 80 (1) ◽  
pp. 139-146 ◽  
Author(s):  
Michael L. Ginger ◽  
Vera L.C.S. Santos ◽  
George A. Wolff
Keyword(s):  
Shallow Water ◽  
De Novo ◽  
Preliminary Investigation ◽  
Minor Component ◽  
Feeding Strategies ◽  
North East ◽  
The North ◽  
Deep Water Species ◽  
Water Species ◽  
Fatty Acid Compositions

The dominant lipids of seven species of abyssal holothurians (Oneirophanta mutabilis, Pseudostichopus villosus, Psychropotes longicauda, Deima validium, Parariza prouhoi, Amperima rosea and Molpadia blakei) have been examined in detail. Fatty acid compositions are qualitatively similar to those of shallow-water holothurians, but relatively higher amounts of unsaturated compounds in the deep sea animals are ascribed to an adaptation of the latter to maintain membrane fluidity at high pressure and low temperature. The sterol distributions of abyssal holothurians are complex, with mixtures of C26–C30 sterols being present in all of the animals. These are most likely to be dietary in origin; the holothurians substitute Δ5 with Δ7 unsaturation, via Δ5,7 or Δ0 intermediates. 14α-methylcholest-9(11)-enol, which is a common product of de novo biosynthesis in shallow-water holothurians is absent in all of the deep-water species. Furthermore, cholest-7-enol, the dominant product of de novo biosynthesis in shallow water animals, is a relatively minor component in all of the species, except A. rosea. This holothurian is also the only one that appears to assimilate 4α-methylsterols directly and contains high amounts of steryl sulphates. There are significant interspecies differences in the free sterol distributions which may reflect their different feeding strategies or niches.

scholarly journals Malmgrenia louiseae sp. nov., a new scale worm species (Polychaeta: Polynoidae) from southern Europe with a key to European Malmgrenia species

2014 ◽  
Vol 95 (5) ◽  
pp. 947-952 ◽  
Author(s):  
Jérôme Jourde ◽  
Leandro Sampaio ◽  
Ruth Barnich ◽  
Paulo Bonifácio ◽  
Céline Labrune ◽  
...  
Keyword(s):  
Shallow Water ◽  
Western Mediterranean ◽  
Identification Key ◽  
Bay Of Biscay ◽  
Southern Europe ◽  
East Atlantic ◽  
Gulf Of Lions ◽  
North East ◽  
The North ◽  
Muddy Sediments

Malmgrenia louiseae sp. nov. is described from both the western Mediterranean in the Gulf of Lions, and the north-east Atlantic from off Portugal and the Bay of Biscay. The species was found in muddy sediments in shallow water and is possibly associated with echiurids or synaptid holothurians. Malmgrenia louiseae sp. nov. can be clearly distinguished from all other known Malmgrenia species by the presence of an infra-acicular process in addition to the supra-acicular process on the acicular lobe of the neuropodia, the lack of microtubercules on the elytra, two kinds of notochaetae (stout with blunt tip and slender with fine pointed tip), and exclusively unidentate neurochaetae. An identification key to the north-east Atlantic and Mediterranean Malmgrenia species is provided.

Ras al Khaimah: further archaeological discoveries

Antiquity ◽  
1976 ◽  
Vol 50 (200) ◽  
pp. 216-222
Author(s):  
Beatrice De Cardi
Keyword(s):  
United Arab Emirates ◽  
The State ◽  
Focused Attention ◽  
North East ◽  
The North ◽  
History Of ◽  
The City

Ras a1 Khaimah is the most northerly of the seven states comprising the United Arab Emirates and its Ruler, H. H. Sheikh Saqr bin Mohammad al-Qasimi, is keenly interested in the history of the state and its people. Survey carried out there jointly with Dr D. B. Doe in 1968 had focused attention on the site of JuIfar which lies just north of the present town of Ras a1 Khaimah (de Cardi, 1971, 230-2). Julfar was in existence in Abbasid times and its importance as an entrep6t during the sixteenth and seventeenth centuries-the Portuguese Period-is reflected by the quantity and variety of imported wares to be found among the ruins of the city. Most of the sites discovered during the survey dated from that period but a group of cairns near Ghalilah and some long gabled graves in the Shimal area to the north-east of the date-groves behind Ras a1 Khaimah (map, FIG. I) clearly represented a more distant past.

Lichens in the North-East regions of Cyprus

1999 ◽  
Vol 110 (5-6) ◽  
pp. 455-463 ◽  
Author(s):  
S. Güvenç ◽  
Ş Öztürk
Keyword(s):  
North East ◽  
The North
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