scholarly journals Performance of an improved breed of common carp - Amur (Hungarian strain) in the North-eastern hill state of Meghalaya, India

2017 ◽  
Vol 64 ◽  
Author(s):  
S. K. Das
Keyword(s):  
Common Carp ◽  
Atmospheric Temperature ◽  
Fish Production ◽  
North East ◽  
The North ◽  
Hill Region ◽  
Common Carp Cyprinus Carpio ◽  
North Eastern ◽  
Genetically Improved ◽  
Research Complex

Common carp (Cyprinus carpio Linnaeus, 1758) is an important fish species for aquaculture in the North-east hill region (NEH) of India. However, in recent years, the growth performance of the existing stock of common carp has been a major concern. In an effort to improve fish production from farmers’ ponds and to evaluate the performance of the breed in mid hill condition, a genetically improved breed of common carp, Amur (Hungarian strain) was introduced in Meghalaya in 2010. Fingerlings of Amur common carp (weight ~14.5 g and length ~10.5 cm), reared under mid-altitude conditions in the fish farm of the ICAR Research Complex for North-eastern hill (NEH) Region, Barapani, Meghalaya, attained maturity in about 14 months period. The first breeding trial with this newly introduced variety was conducted successfully in March 2011 when the atmospheric temperature ranged between 16.0-18.30C. The fertilised eggs hatched in 78-83 h (water temperature 19.0-22.80C and pH 6.5-6.8). Three year studies revealed that the performance of Amur common carp is superior over the local existing breed in farmers ponds under the mid hill conditions.

The influence of submesoscale eddies on hydrochemical parameters and structural and functional characteristics of phytoplankton in the north-eastern part of the Black Sea

2019 ◽  
pp. 24-40
Author(s):  
Sergey B. Kuklev ◽  
Vladimir A. Silkin ◽  
Valeriy K. Chasovnikov ◽  
Andrey G. Zatsepin ◽  
Larisa A. Pautova ◽  
...  
Keyword(s):  
Anticyclonic Eddy ◽  
The Black Sea ◽  
Hydrochemical Parameters ◽  
North East ◽  
The North ◽  
Seasonal Thermocline ◽  
North Eastern ◽  
Quantitative Indicators ◽  
The City ◽  
North Eastern Part

On June 7, 2018, a sub-mesoscale anticyclonic eddy induced by the wind (north-east) was registered on the shelf in the area of the city of Gelendzhik. With the help of field multidisciplinary expedition ship surveys, it was shown that this eddy exists in the layer above the seasonal thermocline. At the periphery of the eddy weak variability of hydrochemical parameters and quantitative indicators of phytoplankton were recorded. The result of the formation of such eddy structure was a shift in the structure of phytoplankton – the annual observed coccolithophores bloom was not registered.

Taxonomy of Nystiellidae (Caenogastropoda, Epitonioidea) from Brazil, with description of three new species from the South-western Atlantic

2017 ◽  
Vol 98 (7) ◽  
pp. 1619-1644 ◽  
Author(s):  
Alexandre Dias Pimenta ◽  
Bruno Garcia Andrade ◽  
Ricardo Silva Absalão
Keyword(s):  
Rio Grande ◽  
Taxonomic Revision ◽  
South Atlantic ◽  
Shell Morphology ◽  
The South ◽  
Western Atlantic ◽  
North East ◽  
The North ◽  
Eastern Brazil ◽  
North Eastern

A taxonomic revision of the Nystiellidae from Brazil, including samples from the Rio Grande Rise, South Atlantic, was performed based on shell morphology. Five genera and 17 species were recognized. For the richest genus,Eccliseogyra, the three species previously recorded from Brazil were revised:E. brasiliensisandE. maracatu, previously known only from their respective type series, were re-examined. Newly available material ofE. maracatuexpanded the known geographic range of this species to off south-east Brazil.Eccliseogyra nitidais now recorded from north-eastern to south-eastern Brazil, as well as from the Rio Grande Rise. Three species ofEccliseogyraare newly recorded from the South Atlantic:E. monnioti, previously known from the north-eastern Atlantic, occurs off eastern Brazil and on the Rio Grande Rise; its protoconch is described for the first time, confirming its family allocation.Eccliseogyra pyrrhiasoccurs off eastern Brazil and on the Rio Grande Rise, andE. folinioff eastern Brazil. The genusIphitusis newly recorded from the South Atlantic.Iphitus robertsiwas found off northern Brazil, although the shells show some differences from the type material, with less-pronounced spiral keels. Additional new finds showed thatIphitus cancellatusranges from eastern Brazil to the Rio Grande Rise, and Iphitusnotiossp. nov. is restricted to the Rio Grande Rise.Narrimania, previously recorded from Brazil based on dubious records, is confirmed, including the only two living species described for the genus:N. azelotes, previously only known from the type locality in Florida, andN. concinna, previously known from the Mediterranean. A third species,Narrimania raquelaesp. nov. is described from eastern Brazil, diagnosed by its numerous and thinner cancellate sculpture. To the three species ofOpaliopsispreviously known from Brazil, a fourth species,O. arnaldoisp. nov., is added from eastern Brazil, and diagnosed by its very thin spiral sculpture, absence of a varix, and thinner microscopic parallel axial striae.Papuliscala nordestina, originally described from north-east Brazil, is recorded off eastern Brazil and synonymized withP. elongata, a species previously known only from the North Atlantic.

Effects of 2017 Early Flash Flooding on Agriculture in Haor Areas of Sunamganj

2021 ◽  
Vol 12 (1-2) ◽  
pp. 117-125
Author(s):  
S Mondal ◽  
L Akter ◽  
HJ Hiya ◽  
MA Farukh
Keyword(s):  
Agricultural Production ◽  
Flash Flood ◽  
Eastern Region ◽  
Fish Production ◽  
Flood Events ◽  
Flash Flooding ◽  
The North ◽  
North Eastern ◽  
Boro Rice

The Sunamganj district is covered by major Haor systems in the north-eastern region of Bangladesh. Flash flood is the most commonly occurring water related disaster in the Haor areas. During the flash flood it is very common that people lost their primary agricultural productions which are the only source of their livelihood. The present study focuses on the effects of 2017 early flash flooding on rice and fish production of Sunamganj Haor areas. The flood caused enormous damage to agriculture such as rice especially Boro rice and fish production on which the Haor dwellers rely upon for their livelihood. The total affected land of Boro rice cultivation in Haors of Sunamganj was 149,224 hectare and the total amount of damaged rice was 393,855 metric ton (MT). The total number of affected farmers was 315,084. The early flash flood also affects the quality of Haor water which caused the death of fishes. The total amount of damaged fish was 49.75 MT and the loss was 158.70 lakh taka. The total number of affected fishermen was 44,445. This findings could be very useful for the environmental scientists to predict the probable future effects on agricultural production due to early flash flood events in Sunamganj Haors areas. Environ. Sci. & Natural Resources, 12(1&2): 117-125, 2019

scholarly journals The geology of the north-eastern corner of Greenland - photogeological studies and 1993 field work

1994 ◽  
Vol 161 ◽  
pp. 21-33
Author(s):  
H.F Jepsen ◽  
J.C Escher ◽  
J.D Friderichsen ◽  
A.K Higgins
Keyword(s):  
Field Work ◽  
Tectonic Activity ◽  
Mobile Belt ◽  
North East ◽  
The North ◽  
Upper Proterozoic ◽  
North Eastern ◽  
Field Season ◽  
Upper Boundary ◽  
Middle Proterozoic

Late Archaean and Early Proterozoic crust-forming events in North-East and eastern North Greenland were succeeded by Middle Proterozoic sedimentation and volcanic activity; Late Proterozoic through Tertiary sedimentation was interrupted by several periods of tectonic activity, including the Caledonian orogeny in East Greenland and the Mesozoic deformation of the Wandel Hav mobile belt. Photogeological studies helped pinpoint areas of special interest which were investigated during the short 1993 field season. Insights gained during field work include: the nature of the crystalline basement terrain in the Caledonian fold belt, redefinition of the upper boundary of the Upper Proterozoic Rivieradal sandstones, revision of Caledonian nappe terminology, and the northern extension of the Caledonian Storstrømmen shear zone.

The Comparative Feeding Ecology of Six Species of Shark and Four Species of Ray (Elasmobranchii) In The North-East Atlantic

1996 ◽  
Vol 76 (1) ◽  
pp. 89-106 ◽  
Author(s):  
J.R. Ellis ◽  
M.G. Pawson ◽  
S.E. Shackley
Keyword(s):  
Feeding Ecology ◽  
Stomach Contents ◽  
Generalist Predators ◽  
Dietary Overlap ◽  
East Atlantic ◽  
Dietary Breadth ◽  
North East ◽  
The North ◽  
North Eastern ◽  
Commercial Species

The stomach contents of ten species of elasmobranch from the north-eastern Atlantic indicate that most are generalist predators, eating a variety of polychaetes, molluscs, crustaceans and teleosts. Two species, Mustelus asterias and Squatina scjuatina were found to be specialist feeders, consuming portunid crabs and pleuronectids, respectively. Measures for both dietary breadth and dietary overlap are given and the implications of elasmobranch predation on the prey communities and on commercial species are discussed.

Integrated Aquaculture: Road ahead for sustainable rural development in Meghalaya

2019 ◽  
Vol 6 (1) ◽  
pp. 29-35
Author(s):  
Rupak Nath ◽  
S. M. Kharbuli ◽  
R. N. Bhuyan
Keyword(s):  
Sustainable Development ◽  
The State ◽  
Integrated System ◽  
Farm Income ◽  
Fish Production ◽  
Sustainable Rural Development ◽  
Integrated Aquaculture ◽  
The North ◽  
North Eastern ◽  
Live Stock

Abstract: The unitary concept of producing crop is gradually changing to integrated system, with a view to integrate different farming components viz. fishery, live stock, horticulture to produce fish, eggs, meat and vegetables from the same farm. The major benefit of integrated system is utilization of resources effectively and recycling of waste within the farm and thus, ultimately maintaining ecological balance. Meghalaya a state located in the North Eastern India, characterized by hills and plateaus interspersed with valley lands in the foot hills. People of Meghalaya are predominantly dependent on agriculture and allied sector. Fish a very valuable source of protein, comprise an important part of the diet of local tribal people. As local wild fish supplies from natural water bodies diminishing and relatively limited aquaculture, fish production in the state is insufficient to satisfy the present demand of fish in Meghalaya. The present fish production in the state is 4.77 thousand tonnes against the demand estimated 30 thousand tonnes per annum. Massive demand of the fish is providing a market opportunity for fish producers in the state. The present study categorized integrated aquaculture as an important and promising enterprise for rural farming households of Meghalaya to maximize their farm income, providing nutritional security and as a whole to achieve sustainable development in the rural sector. Key words: Integrated aquaculture, sustainable development, hilly area

Implication of SASEC Tourism Initiatives on North Eastern States of India

2017 ◽  
pp. 34-52
Author(s):  
Supriya Dam
Keyword(s):  
South Asia ◽  
Eastern Region ◽  
Autonomous Region ◽  
North East ◽  
The North ◽  
International Borders ◽  
Tibet Autonomous Region ◽  
North Eastern ◽  
The Status ◽  
The Look

India's North Eastern Region (NER) stretches from the foothills of the Himalayas in the eastern range and is surrounded by international borders with countries like Bangladesh, Bhutan, China (Tibet Autonomous Region), Nepal, and Myanmar. The landlocked region is constrained by a brief spell of insurgency, and dismal unemployment has affected the region's progress since 1947. The advent of the Look East Policy coupled with a number of South Asia sub-regional arrangements with neighboring countries opened a “Pandora's Box” for this region. The SASEC initiatives of ADB helped to improve the status of tourism and infrastructure, including roads, air connectivity, and also opened cross-border land routes and roads within the North East (NE). The present study takes stock of tourism development from a sustainability perspective and examines the implementation of the SASEC tourism project in eight NE States of India with a view to suggest priority areas for action for promotion of tourism in this region.

Implication of SASEC Tourism Initiatives on North Eastern States of India

2020 ◽  
pp. 690-709
Author(s):  
Supriya Dam
Keyword(s):  
South Asia ◽  
Eastern Region ◽  
Autonomous Region ◽  
North East ◽  
The North ◽  
International Borders ◽  
Tibet Autonomous Region ◽  
North Eastern ◽  
The Status ◽  
The Look

India's North Eastern Region (NER) stretches from the foothills of the Himalayas in the eastern range and is surrounded by international borders with countries like Bangladesh, Bhutan, China (Tibet Autonomous Region), Nepal, and Myanmar. The landlocked region is constrained by a brief spell of insurgency, and dismal unemployment has affected the region's progress since 1947. The advent of the Look East Policy coupled with a number of South Asia sub-regional arrangements with neighboring countries opened a “Pandora's Box” for this region. The SASEC initiatives of ADB helped to improve the status of tourism and infrastructure, including roads, air connectivity, and also opened cross-border land routes and roads within the North East (NE). The present study takes stock of tourism development from a sustainability perspective and examines the implementation of the SASEC tourism project in eight NE States of India with a view to suggest priority areas for action for promotion of tourism in this region.

Lichens from Changbai Shan—Some Additions to the Lichen Flora of North-East China

1982 ◽  
Vol 14 (2) ◽  
pp. 139-152 ◽  
Author(s):  
H. Hertel ◽  
C.-F. Zhao
Keyword(s):  
Northern Hemisphere ◽  
New Records ◽  
East China ◽  
Floristic Similarity ◽  
North East ◽  
The North ◽  
North Eastern ◽  
Saxicolous Lichens ◽  
Lichen Flora

AbstractTwenty-five mainly crustose and saxicolous lichens are reported from the subalpine and alpine belts of Mt Changbai (n.-e. China, near the Korean border). All are new records to the lichen flora of the north-eastern provinces of China, 12 of them to the flora of all China, and four to the flora of all Asia. There is some floristic similarity to some other areas with cool humid climates in the Northern Hemisphere, e.g. Iceland.

Larval spirurids in a supralittoral amphipod in the north-east of Russia and the identification of the intermediate host of Antechiniella septentrionalis (Spirurida: Acuariidae), parasitic in a tundra vole

2019 ◽  
Vol 94 ◽  
Author(s):  
E.S. Ivanova ◽  
N.E. Dokuchaev ◽  
S.E. Spiridonov
Keyword(s):  
Intermediate Host ◽  
Joint Infection ◽  
Infective Stage ◽  
Magadan Oblast ◽  
Microtus Oeconomus ◽  
North East ◽  
The North ◽  
North Eastern ◽  
Tundra Vole ◽  
Eastern Russia

Abstract The supralittoral amphipod Traskorchestia ditmari (Derzhavin, 1923) was identified as the intermediate host for Antechiniella septentrionalis Ivanova, Dokuchaev & Spiridonov, 2019, a parasite of the tundra vole Microtus oeconomus and Skrjabinocerca sp. (both Spirurida: Acuariidae) in Magadan Oblast in north-eastern Russia. Joint infection by both larval spirurids was not observed. The infective stage of A. septentrionalis was the encysted larvae, while larvae of Skrjabinocerca sp. were free in the amphipod's coelom. The identity of A. septentrionalis was confirmed using cox1 mtDNA gene analysis, performed on adult stages from a tundra vole and on larvae from amphipods. Possible transmission routes of A. septentrionalis are discussed.

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