scholarly journals Copepods from the Interstitial Fauna of a Sandy Beach

1935 ◽  
Vol 20 (2) ◽  
pp. 379-405 ◽  
Author(s):  
A. G. Nicholls
Keyword(s):  
Sandy Beach ◽  
New Genera ◽  
Interstitial Fauna ◽  
Large Copepod

Attention was first drawn by Wilson (1932) to the large copepod fauna which can be found in an ordinary sandy beach. In his introduction he describes his method of collecting these copepods (p. 7) and in the course of the paper describes a number of new genera and species thus obtained.Sand-dwelling animals, particularly Crustacea and worms (excluding sessile forms), are usually regarded as burrowers, since in their migrations they displace the particles of their environment. The fauna opened up by Wilson's discovery is of a quite different type. In contrast to true sand-burrowing animals, these copepods do not displace the particles of the sand through which they move but crawl over the surface of the grains, which, by capillarity, always hold more or less water, even high up on the beach at low tide. Such copepods, together with nematodes, rotifers, protozoa and other animals sufficiently small, may be regarded as part of an “interstitial” fauna.

An interstitial fauna transect of a Solomon Islands sandy beach

1969 ◽  
Vol 255 (800) ◽  
pp. 517-526 ◽  
Keyword(s):  
Particle Size ◽  
Sandy Beach ◽  
Solomon Islands ◽  
Particle Size Analysis ◽  
Size Analysis ◽  
Generic Level ◽  
Interstitial Fauna ◽  
Surface Sand

Surface sand samples were collected from a number of stations arranged down a transect of the beach at Komimbo Bay, west Guadalcanal. The included interstitial sand animals have been identified to generic level and their distribution and relative numbers are described. The transect was surveyed and the sand samples have been subjected to a particle size analysis.

VII.—The Littoral Copepoda (Crustacea) of Inhaca Island, Mozambique

1967 ◽  
Vol 67 (7) ◽  
pp. 189-358 ◽  
Author(s):  
J. B. J. Wells
Keyword(s):  
New Species ◽  
Major Part ◽  
East Coast ◽  
New Records ◽  
Ecological Approach ◽  
New Genera ◽  
Lack Of Information ◽  
Interstitial Fauna ◽  
Established Species ◽  
World Distribution

SynopsisThis paper deals with a collection of littoral meiobenthic copepods collected at Inhaca Island, Mozambique during the month of September 1963. A total of 135 species of Copepoda Calanoida (1), Cyclopoida (8) and Harpacticoida (126) were found of which 45 are new species and one a new forma. Thirteen new genera are described. The meiobenthos of Inhaca Island is totally unknown and few studies have been made anywhere on the east coast of Africa, the only exceptions being the several researches in the Red Sea and on the island of Madagascar. As the time available was limited and the fauna unknown the major part of the work was devoted to compiling as complete an inventory of the copepod fauna as possible. As far as was possible samples of equivalent size were taken in each habitat and some idea of variation in copepod populations on the different substrates can be estimated, but a more exact ecological approach was not attempted. The fauna proved to be very rich and varied. The greatest number of species and of individuals was found in the detritus sand. In this habitat no one species was super-dominant as was the case in the phytal habitats (algæ and marine grasses) and in clean sand (the interstitial fauna). Due to the lack of information from adjacent areas the zoogeographical relationships of the fauna are difficult to assess. It is possible that many of the new species are quite local. For the established species these new records are of value in assessing their world distribution and the evidence points to many of them being cosmopolitan.

scholarly journals Two new genera and three new species of subterranean cyclopoids (Crustacea, Copepoda) from New Zealand, with redescription of Goniocyclops silvestris Harding, 1958

2005 ◽  
Vol 74 (3-4) ◽  
pp. 223-254 ◽  
Author(s):  
Tomislav Karanovic
Keyword(s):  
New Zealand ◽  
Lake Baikal ◽  
Sandy Beach ◽  
Present Report ◽  
New Genera ◽  
The North ◽  
Small Collection ◽  
Western Shore ◽  
Systematic List ◽  
Three New Species

A small collection of copepod samples from several wells in the Canterbury region, South Island, was examined. It contained a few cosmopolitan cyclopoid species, three interesting harpacticoids, as well as two new cyclopoid genera. The latter are presented in this paper, together with a redescription and first description of the male of Goniocyclops silvestris Harding, 1958, a cyclopoid species previously known only from North Island. Both new genera are from the Diacyclops-Acanthocyclops complex. Abdiacyclops gen. nov. is easily distinguishable from the complex by its unique swimming legs segmentation formula (2/2, 3/3, 3/3, 3/3), and is so far monospecific and known only after females. The most important characters of the second new genus, Zealandcyclops gen. nov. are: the swimming legs segmentation formula of 2/2, 3/2, 3/2, 3/2; a very small and two-segmented fifth leg; 11-segmented antennula; and sexual dimorphism in the swimming legs, with a transformed apical spine on the third leg endopod in the male. Four species were included in this genus: Zealandcyclops fenwicki sp. nov., from a well in the South Canterbury region; Z. haywardi sp. nov., from a well in the North Canterbury region; Z. eulitoralis (Alekseev and Arov, 1986) comb. nov., from the interstitial of several beaches on the southern shore of Lake Baikal; and Z. biceri (Boxshall et al., 1993) comb. nov., from a sandy beach on the western shore of Lake Baikal. Zealandcyclops gen. nov. seems to be an archaic cyclopoid genus, having survived only in New Zealand and in the ancient Lake Baikal. With the present report, the New Zealand cyclopoid fauna numbers 16 species, a systematic list of which is presented in this paper. The majority of them are cosmopolitan elements, probably introduced here by early European settlers. Only one genus (8%) and six species (38%) are endemic, which is probably a reflection of the absence of any comprehensive research on the New Zealand cyclopoids.

EVOLUTION OF SANDY BEACH IN THE CITY OF VARNA

2017 ◽  
Author(s):  
Dachev Veliko Z ◽  
Dachev Veliko Z
Keyword(s):  
Retrospective Review ◽  
Anthropogenic Impact ◽  
Sandy Beach ◽  
New Method ◽  
Coastal Protection ◽  
Area Growth ◽  
Long Time ◽  
The City ◽  
Further Development ◽  
Beach Volume

The article represents a retrospective review of long time research of genesis and development of the Central beach in the City of Varna which makes possible a forecast of its further development. Both natural and anthropogenic impact on the beach evolution is taken into consideration. It is ascertained that construction of coastal protection structures at the northern part of the beach in 80’s resulted in cessation of natural beach area growth. The strengthen of a breakwater in the main port and illegal building also contributed to considerable coast recession and beach volume reducing. Because of this a recreational potential of the Central beach is gradually decreasing. New method named “cross-shore sediment bypassing” is suggested to reduce the negative trend.

Three new species, two new genera, and new family Biphragmosagittidae (Сhaetognatha) from Southwest Pacific Ocean

2011 ◽  
Vol 20 (1) ◽  
pp. 161-173
Author(s):  
A.P. Kassatkina
Keyword(s):  
New Species ◽  
Type Species ◽  
Morphological Characters ◽  
The Body ◽  
New Order ◽  
New Genera ◽  
New Family ◽  
The Family ◽  
Three New Species

Resuming published and own data, a revision of classification of Chaetognatha is presented. The family Sagittidae Claus & Grobben, 1905 is given a rank of subclass, Sagittiones, characterised, in particular, by the presence of two pairs of sac-like gelatinous structures or two pairs of fins. Besides the order Aphragmophora Tokioka, 1965, it contains the new order Biphragmosagittiformes ord. nov., which is a unique group of Chaetognatha with an unusual combination of morphological characters: the transverse muscles present in both the trunk and the tail sections of the body; the seminal vesicles simple, without internal complex compartments; the presence of two pairs of lateral fins. The only family assigned to the new order, Biphragmosagittidae fam. nov., contains two genera. Diagnoses of the two new genera, Biphragmosagitta gen. nov. (type species B. tarasovi sp. nov. and B. angusticephala sp. nov.) and Biphragmofastigata gen. nov. (type species B. fastigata sp. nov.), detailed descriptions and pictures of the three new species are presented.

EVOLUTION OF SANDY BEACH IN THE CITY OF VARNA

2017 ◽  
Author(s):  
Dachev Veliko Z ◽  
Dachev Veliko Z
Keyword(s):  
Retrospective Review ◽  
Anthropogenic Impact ◽  
Sandy Beach ◽  
New Method ◽  
Coastal Protection ◽  
Area Growth ◽  
Long Time ◽  
The City ◽  
Further Development ◽  
Beach Volume

The article represents a retrospective review of long time research of genesis and development of the Central beach in the City of Varna which makes possible a forecast of its further development. Both natural and anthropogenic impact on the beach evolution is taken into consideration. It is ascertained that construction of coastal protection structures at the northern part of the beach in 80’s resulted in cessation of natural beach area growth. The strengthen of a breakwater in the main port and illegal building also contributed to considerable coast recession and beach volume reducing. Because of this a recreational potential of the Central beach is gradually decreasing. New method named “cross-shore sediment bypassing” is suggested to reduce the negative trend.

FORMATION OF A SANDY BEACH DUE TO SAND SUPPLY FROM VICINITY OF REEF EDGE

2019 ◽  
Vol 75 (2) ◽  
pp. I_623-I_628
Author(s):  
Takaaki UDA ◽  
Tatsuyuki IGARASHI ◽  
Yasuhiro OOKI
Keyword(s):  
Sandy Beach ◽  
Sand Supply ◽  
Reef Edge

scholarly journals Coastal sand dune vegetation of Velika plaža (Montenegro)

2020 ◽  
Vol 79 (1) ◽  
pp. 43-54 ◽  
Author(s):  
Danijela Stešević ◽  
Filip Küzmič ◽  
Đorđije Milanović ◽  
Milica Stanišić-Vujačić ◽  
Urban Šilc
Keyword(s):  
Sand Dune ◽  
Sandy Beach ◽  
Field Work ◽  
Dune Vegetation ◽  
Sand Beach ◽  
New Associations ◽  
Comprehensive Survey ◽  
Sand Dune Vegetation ◽  
Phytosociological Study

Velika plaža (Ulcinj, Montenegro) is the largest sandy beach along the coast of the eastern Adriatic that still has well-developed sand-dune vegetation. Although the characterization of the flora and vegetation of Velika plaža has been addressed by many authors, knowledge on its vegetation remained poor. We made a phytosociological study of sand beach vegetation comprising both dunal and wetland areas to provide a comprehensive survey of sand dune vegetation and habitat typology of Velika plaža. Based on 149 relevés (both from literature and recent field work), and with numerical classification (Flexible beta) and ordination (Non-metric multidimensional scaling) our results show that the vegetation of Velika plaža is much more diverse than previously known. Altogether, 19 plant communities from 6 vegetation classes were identified. Among them we described two new associations: Cuscuto cesatianae-Phyletum nodiflorae and Onobrychido caput-galli-Vulpietum fasciculatae.

4 The Tyara Site

1968 ◽  
Vol 22 ◽  
pp. 44-79 ◽  
Author(s):  
William E. Taylor
Keyword(s):  
Sandy Beach ◽  
North Coast ◽  
National Museum ◽  
The West ◽  
Rock Outcrops ◽  
Small Boat ◽  
The North

The Tyara site, KkFb-7 in the National Museum catalogue and site file, faces the north coast of the Ungava mainland and rests on the west shore of Sugluk Island (Fig. 1). That island stands about five hundred yards from the mainland and from Sugluk Inlet, one of the few good harbors on that coast. This handsome little island, about one and one-half miles long and as wide, consists of rounded, rugged, hardrock hills that shelter well-vegetated, generally flat-floored valleys. The valleys often contain marshy patches. The shore, of variable incline, is quite jagged, a result of abrupt rock outcrops projecting seaward from brief stretches of sandy beach. The shore facing the mainland is, therefore, quite convenient for small boat use. Dark grey gneisses seem to predominate, although they are often cut by dykes and veins of lighter material, notably quartz. The dense, green valley and hillside vegetation includes willows, mosses, grasses, lichens, and a pleasant profusion of arctic wild flowers (Polunin 1948, Pt. III). I was told at Sugluk that at the head of the inlet, willows, growing in protected situations, reach the thickness of a man's wrist.

scholarly journals A synthesis of African and western Indian Ocean Island mammal taxa (Class: Mammalia) described between 1988 and 2008: an update to Allen (1939) and Ansell (1989)

Zootaxa ◽  
2009 ◽  
Vol 2205 (1) ◽  
pp. 1-36 ◽  
Author(s):  
MICHAEL HOFFMANN ◽  
PETER GRUBB ◽  
COLIN P. GROVES ◽  
RAINER HUTTERER ◽  
ERIK VAN DER STRAETEN ◽  
...  
Keyword(s):  
New Species ◽  
Western Indian Ocean ◽  
Systematic Position ◽  
Iucn Red List ◽  
New Genera ◽  
New Subspecies ◽  
New Subgenus ◽  
African Mammals ◽  
The Status ◽  
Data Deficient

We provide a synthesis of all mammal taxa described from the African mainland, Madagascar and all surrounding islands in the 20 years since 1988, thereby supplementing the earlier works of G.M. Allen (1939) and W.F.H. Ansell (1989), and bringing the list of African mammals described over the last 250 years current to December 2008. We list 175 new extant taxa, including five new genera, one new subgenus, 138 new species and 31 new subspecies, including remarks, where relevant, on the current systematic position of each taxon. Names of seven species of primates are emended, according to the requirements of the ICZN. The taxonomic group in which the largest number of new taxa has been described is the Primates, with two new genera, 47 new species and 11 new subspecies, while geographically the biggest increase in new species descriptions has been on the island of Madagascar, accounting for roughly half (67) of all new species described in the past 20 years. Nearly half of all new species listed currently are assessed as Data Deficient on the IUCN Red List of Threatened Species (49 of 101 listed species) suggesting further research is urgently needed to help clarify the status of those recently described species.

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