Tendencies of climatic changes for thermal conditions in the coastal areas of the Okhotsk Sea in last decades

2017 ◽  
Vol 191 ◽  
pp. 176-195 ◽  
Author(s):  
Igor D. Rostov ◽  
Elena V. Dmitrieva ◽  
Alexander A. Vorontsov
Keyword(s):  
Thermal Conditions ◽  
Climatic Changes ◽  
Coastal Areas ◽  
Okhotsk Sea

Glacial terminations and the Last Interglacial in the Okhotsk Sea; Their implication to global climatic changes

2017 ◽  
Vol 152 ◽  
pp. 51-63 ◽  
Author(s):  
Sergey Gorbarenko ◽  
Tatyana Velivetskaya ◽  
Mikhail Malakhov ◽  
Aleksandr Bosin
Keyword(s):  
Climatic Changes ◽  
Okhotsk Sea ◽  
Last Interglacial

Climatic Changes in Thermal Conditions of Marginal Seas in the Western Pacific

2020 ◽  
Vol 45 (3) ◽  
pp. 169-178
Author(s):  
I. D. Rostov ◽  
E. V. Dmitrieva ◽  
N. I. Rudykh ◽  
A. A. Vorontsov
Keyword(s):  
Thermal Conditions ◽  
Climatic Changes ◽  
Western Pacific ◽  
Marginal Seas ◽  
The Western Pacific

scholarly journals Determinación Palinológica del Paleoambiente Holocénico en la parte norte del Estado de Michoacán

2017 ◽  
pp. 251 ◽  
Author(s):  
Ma. Susana Xelhuantzi-López
Keyword(s):  
Contact Zone ◽  
Pollen Analysis ◽  
Thermal Conditions ◽  
Climatic Changes ◽  
The State ◽  
Ancient Lake ◽  
Palynological Analysis ◽  
Palaeoenvironmental Reconstruction ◽  
The North ◽  
A Site

The palaeoenvironmental reconstruction of a site of archaeological interest in the Basin of Zacapu. in the north of the state of Michoacán, Mexico, was performed through pollen analysis. From the analysis of sediments of the central part of the swamp of Zacapu and the contact zone "Lomas"-swamp, it is possible to distinguish three climatic stages: from ca. 8100 to ca. 6700 BP, temperate-humid or sub humid weather; from ca. 6700 to ca. 5000 BP. temperate-semiarid weather; from ca. 5000 BP to the present time. temperate-subhumid weather. This study suggests that since 7000 BP, the ancient Lake of Zacapu has been a swamp-like water deposit. The climatic changes which can be inferred from this palynological analysis show more variations in the conditions of humidity than the thermal conditions. In the last 5000 BP, the weather in the area of Zacapu has been almost the same as it is in the present time: temperate subhumid.

scholarly journals Interannual variability of thermal state of the cold subsurface layer in the Okhotsk Sea

2016 ◽  
Vol 187 (4) ◽  
pp. 205-216
Author(s):  
Vladimir A. Luchin ◽  
Vladimir I. Matveev
Keyword(s):  
Thermal State ◽  
Subsurface Layer ◽  
Heat Content ◽  
Thermal Conditions ◽  
Subsurface Water ◽  
Climate Indices ◽  
Okhotsk Sea ◽  
The Pacific ◽  
Local Patterns

Long-term variability of the cold subsurface water (CSW) in the Okhotsk Sea is analyzed on the base of all available oceanographic data collected in March through August of 1946-2015 (total 65,742 stations). The Integral Heat Content (IHC) is calculated for each station and average annual IHC anomalies of the cold subsurface water are determined by month and by 2-degree grid. The IHC anomaly series are analyzed using the EOF analysis. Cycles with period of approximately 30 years are revealed in the variations of the subsurface layer heat content. Thus, in the 1946-1950, its temperature decreased, but it grew since 2009-2010 to 2015. The warming of CSW was also observed in the 1951-1964 and 1978-1994, while the cooling was in the 1965-1977 and 1995-2008. Based on this criterion, the CSW thermal condition in certain years is classified as «extremely cold» in 2001, as «cold» in 1949, 1950, 1951, 1958, 1959, 1960, 1966, 1967, 1969, 1973, 1976, 1977, 1978, 1980, 1999, 2000, 2010, 2012, as «normal» in 1946, 1952, 1953, 1954, 1955, 1957, 1961, 1962, 1965, 1970, 1971, 1972, 1975, 1979, 1982, 1983, 1985, 1986, 1988, 1989, 1990, 1993, 1995, 1996, 1998, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2011, 2013, 2014, as «warm» in 1948, 1956, 1964, 1968, 1974, 1981, 1984, 1987, 1991, 1992, 1994, 1997, 2015, and as «extremely warm» in 1963. Statistically significant correlation is found between changes of the CSW thermal conditions and long-term variations of atmosphere and ocean climate indices, as well as local patterns of the atmosphere-ice-ocean interaction in the Okhotsk Sea and adjacent onshore and offshore areas of Asia and the Pacific Ocean.

Characterization and evolution of spearfishing in Madeira archipelago, Eastern Atlantic

2020 ◽  
Vol 33 ◽  
pp. 15
Author(s):  
Roi Martínez-Escauriaza ◽  
Claudio Vieira ◽  
Lídia Gouveia ◽  
Nuno Gouveia ◽  
Margarida Hermida
Keyword(s):  
Fish Species ◽  
Young Men ◽  
Coastal Areas ◽  
Teleost Fishes ◽  
The North ◽  
Southeast Coast ◽  
Madeira Archipelago ◽  
First Time

Data obtained from licenses of spearfishers and surveys conducted in 2004 and 2017 allowed for the analysis, for the first time, of the practice of spearfishing in the Madeira archipelago. Only a small percentage of the population practices spearfishing, mostly local young men. Most of them practice the activity with a partner throughout most of the year and along most of the island's coastal areas, although preferentially along the North and Southeast coast. Results show how, in recent years, despite the population of spearfishers decreasing, the abundance in the annual catch potentially increased, probably due to the higher investment of time in this activity. It has been observed that many fishers complement their catches with manual collecting of invertebrates. Overall, 40 teleost fishes and also 4 crustaceans and 8 molluscs were identified. The most frequently captured fish species were parrotfish and white seabream, while limpets were the most collected invertebrates in both selected periods.

Hormonal stimulation and some risk factors studied to improve bovine pregnancy rate at the Coastal areas of Barisal district of Bangladesh

2018 ◽  
Vol 52 (1-4) ◽  
pp. 22-30
Author(s):  
A K Paul ◽  
S M T Rahman
Keyword(s):  
Pregnancy Rate ◽  
Coastal Region ◽  
Hormonal Treatment ◽  
Coastal Areas ◽  
Pregnancy Rates ◽  
Hormonal Stimulation ◽  
Crossbred Cows ◽  
Treatment Groups ◽  
History Of ◽  
Group A

Hormonal treatment of cows at the coastal region of Barisal district of Bangladesh was performed to assess the improvement of pregnancy rate. A total of 100 cows and heifers with irregular history of cyclicity were selected randomly and divided into five treatment groups. The groups were A (treated with anthelmintic), B (treated with anthelmintic, vitamin ADE and multivitamin powder), C (treated with PGF2α), D (treated with GnRH) and E (treated with GnRH and PGF2α). Each group comprised of 20 animals. The age, breed and parity of experimental cows were considered during treatment. In the study, the cows treated with both GnRH and PGF2α (group E) showed significantly (p<0.05) higher estrus (80%) and pregnancy rate (60%) than that of group A, B, C and D. The overall estrus rates of local and crossbred cows were 64% and 70%, respectively and the pregnancy rates were 40 and 52%, respectively. The crossbred cows responded significantly (p<0.05) to hormonal treatment than that of local cows. Parity-2 cows showed higher estrus sign than that of other parities. However, the pregnancy rates were higher significantly (p<0.05) in parity-2 and parity ≥4 cows than that of parity-0, parity-1 and parity-3 cows. The pregnancy rate was also found higher in case of 4 to <5 years old cows than that of 2 to <3, 3 to <4, 5 to <6, and ≥6 years old. It may conclude that the hormonal regimen increases the pregnancy rate as well as decreases the undesired waiting of estrus and conception. Further study with more sample size will reveal the more effective treatment for cows at the coastal areas of Bangladesh.

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