scholarly journals Abundance and distribution of lantern fishes (Myctophiformes: Myctophidae) around San Pedro Martir Island, Gulf of California, during 2008

2016 ◽  
Vol 41 (3) ◽  
pp. 387-394
Author(s):  
Mariana Díaz Santana-Iturríos ◽  
Deivis S. Palacios-Salgado ◽  
César A. Salinas-Zavala

Myctophids (Myctophidae) are a group of abundant mesopelagic fishes in the world´s oceans and are known as the main feeding resource for several high trophic level predators. Changes in abundance may be related to population size of some commercially important species that feed on them. Only two of the myctophid species reported for the Gulf of California were found in the present study: Benthosema panamense and Triphoturus mexicanus. The highest abundance and biomass of myctophids were found during the warm season (June and September), with B. panamense being the most abundant species (20,954 ind 1000 m-3), as well as the one with highest biomass (17,165.8 g 1000 m-3). B. panamese had a size mode interval of 35-40 mm, while T. mexicanus presented a size mode interval of 40-45 mm; both species had negative allometric growth. During the temperate season (February and April) B. panamense was distributed in the northwest, west, and southern regions around the island, while T. mexicanus was found in the north, west, and southern regions. During the warm season B. panamense was found distributed around the entire island and T. mexicanus was found in the west, south, and east regions of the island. These species are common around San Pedro Martir Island, with the highest values of abundance and biomass occurring during summer upwelling's.

2013 ◽  
Vol 29 (1) ◽  
pp. 35-47
Author(s):  
Claire Warden

The multi-spatial landscape of the North-West of England (Manchester–Salford and the surrounding area) provides the setting for Walter Greenwood's 1934 play Love on the Dole. Both the urban industrialized cityscape and the rural countryside that surrounds it are vital framing devices for the narrative – these spaces not simply acting as backdrops but taking on character roles. In this article Claire Warden reads the play's presentation of the North through the concept of landscape theatre, on the one hand, and Raymond Williams's city–country dialogism on the other, claiming that Love on the Dole is imbued with the revolutionary possibility that defines the very landscape in which it is set. From claustrophobic working-class kitchen to the open fields of Derbyshire, Love on the Dole has a sense of spatial ambition in which Greenwood regards all landscapes as tainted by the industrial world while maintaining their capacity to function independently. Ugliness and beauty, capitalist hegemony and socialistic hopefulness reside simultaneously in this important under-researched example of twentieth-century British theatre, thereby reflecting the ambivalent, shifting landscape of the North and producing a play that cannot be easily defined artistically or politically. Claire Warden is a Lecturer in Drama at the University of Lincoln. Her work focuses on peripheral British performances in the early to mid-twentieth century. She is the author of British Avant-Garde Theatre (Palgrave MacMillan, 2012) and is currently writing Modernist and Avant-Garde Performance: an Introduction for Edinburgh University Press, to be published in 2014.


Author(s):  
K. Darkenov ◽  
◽  
K. Kakar ◽  

Central Asia is the heart of the Eurasian continent, a region directly adjacent to China, and the Silk Road, which connects the Eurasian continent, passes through this region. Kazakhstan is a country rich in natural resources and energy in Central Asia. Apart from the mineral resources of Central Asia, its location as the center of two continents, its importance in China's foreign trade and its strategic position in the defense of the North-West Frontier, made Kazakhstan known to the world about the location of this project. Since 2014, China has focused on the "One Belt - One Road" strategy in the region. Since 2014, economic relations between the two countries have developed under the "One Belt - One Road" initiative, but the problems remain. The article is devoted to the analysis of economic relations between the two countries and give some suggestions to solve the problem


1981 ◽  
Vol 29 (2) ◽  
pp. 121 ◽  
Author(s):  
GM Lodge

Emergence and survival of the seedlings of warm-season native perennial grasses Aristida ramosa R.Br., Bothriochloa macra (Steud.) S . T. Blake, Dichanthium sericeum (R.Br.) Camus, Sporobolus elongatus R.Br., Eragvostis leptostachya Steud. and Chloris truncata R.Br. and the cool-season species Stipa variabilis Hughes and Danthonia linkii Kunth were studied in both native pastures and sown monospecific plots on the north- west slopes of New South Wales. The most favourable period for the successful emergence and establishment of warm-season grasses was from mid summer to early autumn. Cool-season native perennial grasses established best from seedlings that appeared from mid autumn to late winter. Few seedlings were observed to germinate in spring, probably as a result of large variations in temperature, low minimum temperatures or intra and interspecific competition. Seedlings growing in native pasture spent long periods in the vegetative phase compared to the early flowering of seedlings in the sown plots. In the pasture studied only two seedlings flowered over 700 days after emergence, and many others after persisting for up to 2 years died without producing seed. These findings indicate that the seedlings in these native pastures were under considerable stress and that the adult populations of the species examined were relatively stable and little recruitment occurred.


Africa ◽  
2006 ◽  
Vol 76 (2) ◽  
pp. 180-199 ◽  
Author(s):  
Mark Leopold

AbstractThis article outlines the history of a people known as ‘Nubi’ or ‘Nubians’, northern Ugandan Muslims who were closely associated with Idi Amin's rule, and a group to which he himself belonged. They were supposed to be the descendants of former slave soldiers from southern Sudan, who in the late 1880s at the time of the Mahdi's Islamic uprising came into what is now Uganda under the command of a German officer named Emin Pasha. In reality, the identity became an elective one, open to Muslim males from the northern Uganda/southern Sudan borderlands, as well as descendants of the original soldiers. These soldiers, taken on by Frederick Lugard of the Imperial British East Africa Company, formed the core of the forces used to carve out much of Britain's East African Empire. From the days of Emin Pasha to those of Idi Amin, some Nubi men were identified by a marking of three vertical lines on the face – the ‘One-Elevens’. Although since Amin's overthrow many Muslims from the north of the country prefer to identify themselves as members of local Ugandan ethnic groups rather than as ‘Nubis’, aspects of Nubi identity live on among Ugandan rebel groups, as well as in cyberspace.


Iraq ◽  
2008 ◽  
Vol 70 ◽  
pp. 41-50 ◽  
Author(s):  
Nicolas Gillmann

AbstractThe purpose of the present paper is to review the question of the “bâtiment isolé” located at the north-west corner of the royal terrace at Khorsabad. The author seeks first to demonstrate how this building can be connected with the one depicted on relief 12 in Room VII of Sargon's palace, and secondly to propose a reconstruction both of the plan and the elevation of the building, incorporating all the special features belonging to it (column, capital, roof and so on). In order to do so, the author compares typically Assyrian plans, such as those of reception suites, with the remains of the “bâtiment isolé”. The reconstruction of the elevation of this building will partly be based on the relief from Room VII and partly on archaeological remains, such as column bases like those found at Khorsabad (Palace F and Residence K) and at Nineveh.


2019 ◽  
Author(s):  
Even Sannes Riiser ◽  
Thomas H.A. Haverkamp ◽  
Srinidhi Varadharajan ◽  
Ørnulf Borgan ◽  
Kjetill S. Jakobsen ◽  
...  

AbstractThe biological roles of the intestinal microbiome and how it is impacted by environmental factors are yet to be determined in wild marine fish species. Atlantic cod (Gadus morhua) is an ecologically important species with a wide-spread distribution in the North Atlantic Ocean. 16S rRNA-based amplicon analyses found no geographical differentiation between the intestinal microbiome of Atlantic cod from different locations. Nevertheless, it is unclear if this lack of differentiation results from an insufficient resolution of this method to resolve fine-scaled biological complexity. Here, we take advantage of the increased resolution provided by metagenomic shotgun sequencing to investigate the intestinal microbiome of 19 adult Atlantic cod individuals from two coastal populations in Norway – located 470 km apart. Our results show that the intestinal microbiome is dominated by theVibrionalesorder, consisting of varying abundances ofPhotobacterium, AliivibrioandVibriospecies. Moreover, resolving the species community to unprecedented resolution, we identify two abundant species,P. iliopiscariumandP. kishitanii,which comprise over 50% of the classified reads. Interestingly, genomic data shows that the intestinalP. kishitaniistrains have functionally intactluxgenes, and its high abundance suggests that fish intestines form an important part of its ecological niche. These observations support a hypothesis that bioluminescence plays an ecological role in the marine food web. Despite our improved taxonomical resolution, we identify no geographical differences in bacterial community structure, indicating that the intestinal microbiome of these coastal cod is colonized by a limited number of closely related bacterial species with a broad geographical distribution that are well suited to thrive in this host-associated environment.


2020 ◽  
Vol 210 ◽  
pp. 05012
Author(s):  
Nikolay Romanovskiy ◽  
Aleksandr Sergeyev ◽  
Eduard Papushin ◽  
Ivan Irkov ◽  
Alexey Bykov

The appearance of the first marketable root crops with a diameter of more than 50 mm, categorized as elite, in the North-West region of the Russian Federation, may already occur by the end of the third decade of June. The crop price during this period is at least twice the one during mass harvesting. The price depends on the product’s presence on the consumer’s market as well as on weather conditions in the regions of traditional suppliers. In some years, the price can differ by a factor of 3-4. By the time of mass harvesting using traditional technology, the number of elite root crops does not exceed 50%. In order to assess the effectiveness of the proposed early beets cultivation technology, the studies were carried out in the economic conditions of the farm, Leningrad region on the area of 3 hectares. According to the research results, the proposed technology allows to reach 3.3-fold increase of the root crops yield, which are to be sold fresh through the retail network, compared to the traditional one. The gross income using the proposed technology, calculated for sales prices of 2019, amounted to 384.6 thousand rub/ha against 125.2 thousand rub/ha using traditional cultivation techniques.


2021 ◽  
Author(s):  
Jozef Skakala ◽  
Jorn Bruggeman ◽  
David Ford ◽  
Stefano Ciavatta

<p>In the presented work we advanced our modelling of in-water optics on the North-West European (NWE) Shelf, with important implications for how we model stratification of the water column, primary productivity, and the underwater radiances. We implement a stand-alone bio-optical module into the existing coupled physical-biogeochemical model configuration. The advantage of the bio-optical module, when compared to the pre-existing light scheme is that it resolves the underwater irradiance spectrally and distinguishes between direct and diffuse downwelling streams. The changed underwater irradiance compares better with both satellite and in-situ observations. We show that both underwater irradiance and model biogeochemistry can be further improved by assimilating suitable ocean-color derived satellite products into the model. We use the light module to introduce feedback from biogeochemistry to physics and demonstrate that the two-way coupled model tends to outperform the one-way coupled model in both physics and biogeochemistry. We discuss the implications of our developments for future modelling of the NWE Shelf.</p>


2021 ◽  
pp. 85-108
Author(s):  
Jens Steffek

This chapter is dedicated to non-liberal varieties of technocratic internationalism. The focus is on two largely forgotten authors who represent technocratic internationalism in the fascist and socialist context. I first consider the international theory of Giuseppe De Michelis, a Geneva-based Italian diplomat who developed a fascist approach to international cooperation. What he proposed in the early 1930s was a system of global economic governance coordinated by a powerful international organization. Projecting Italian corporativism to the international level, De Michelis envisaged a global scheme to allocate capital, labour, and raw materials, with a united ‘Eurafrica’ as avant-garde. The second part of the chapter considers the work of Francis Delaisi, a French political economist and journalist of the same generation. Delaisi was a syndicalist who late in his life came to sympathize with the way the Nazis re-organized the German economy. He was the author of the so-called ‘Delaisi plan’, a scheme of transnational public works intended to unite the European continent. The idea behind this plan, presented in 1931, was to bring together the ‘two Europes’ that he found to co-exist on the same continent: the industrial core in the North-West on the one hand and the far less developed areas in Eastern and Southern Europe on the other.


1927 ◽  
Vol 64 (1) ◽  
pp. 10-26 ◽  
Author(s):  
R. H. Rastall

The foregoing sketch brings out marked resemblances in the geological features of eastern and southern England on the one hand, and the neighbouring parts of the continent on the other. In both areas we find an old plateau of pre-Devonian rocks, against which Devonian and Carboniferous rocks are violently thrust from the south by Armorican and Variscan folds, giving rise to highly complex coal-basins in Belgium, France and Somerset, a type of structure possibly to be encountered in the future in Kent. In Belgium this plateau sinks to the north-east under the Campine coalfield, while in England its north-west margin is complicated by the incidence of posthumous folds of Charnian strike.In eastern England, east of the Charnwood line, there is evidence for the existence of Professor Kendall's Willoughby axis, with north-west strike; between this and the Charnwood line there are indications of similar parallel buried trend-lines in the folding and faulting of the visible Yorks-Derby-Notts coalfield, and also, as suggested by Professor Fearnsides, in the general shape of this basin.Further to the north, however, the general line of the Cleveland and Market Weighton axes is not Charnian, being about west 5° north. The Market Weighton axis, which is of Charnian type, with many repeated movements, does not form the boundary of the coalfield; this is in fact constituted by the southern flank of the broad Cleveland uplift, which is of Wealden type; an anticline superposed on an earlier sinking area.


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