Temat: marine ecosystem - Prolib Integro

Skocz do pozycji: 1.

Tytuł:: Acoustic tracking dynamic phenomena in marine ecosystem
Autorzy:: Orlowski, A.
Tematy:: acoustic tracking
marine ecosystem
hydroacoustics; Pokaż więcej
Data publikacji:: 2009
Powiązania:: https://bibliotekanauki.pl/articles/332782.pdf Link otwiera się w nowym oknie
Źródło:: Hydroacoustics; 2009, 12; 167-180
1642-1817
Pojawia się w:: Hydroacoustics
Opis:: Acoustic information, collected in the form of measurements of integrated echo energiesrelated to time and 3D space has been applied at the Sea Fisheries Institute since 1981 to examine the rough statistical relationships between clupeoids distribution in the Baltic and the relevant environmental factors. In this paper it is shown that the data collected can be also applied for very detail observation of dynamic phenomena in marine ecosystem. Two differentiated case studies were selected to show new acoustic applications in specific areas of oceanographic research. In the first case spatial characteristics of fish diel vertical migration in the southern Baltic was surveyed and analysed for the period 1994-2007, against the environmental background. In the second case acoustic sounding was applied to quantify ebullition of methane from Baltic sediments. Both phenomena are strongly dependent on climatic variability. For both cases the final characteristics of the phenomenon was given in the form of video frames, expressing the processes in time. Unique method of echo-recording transformation into video frames was described and applied to analyse the process of ebullition of methane from the seabed.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Coastal and marine issues and their relation to ecosystem survey
Autorzy:: Elentably, A.
Fisher, K.
Holger, S.
Alghanmi, A.
Alhrbi, S.
Tematy:: maritime ecosystem survay
ecosystem
ecosystem survey
marine resources
marine ecosystem
coastal ecosystem
sustainable coastal development
marine environment; Pokaż więcej
Data publikacji:: 2022
Powiązania:: https://bibliotekanauki.pl/articles/2211600.pdf Link otwiera się w nowym oknie
Źródło:: TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2022, 16, 3; 449--454
2083-6473
2083-6481
Pojawia się w:: TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Opis:: Protecting and preserving the environment and marine resources is a constant concern of countries. The seas and oceans face increasing threats to their flora and fauna from pollution, both from land and sea sources. Overexploitation of marine resources and overfishing pose serious threats to biodiversity and the balance of marine ecosystems. Especially for countries that rely on fisheries resources to feed their populations in closed or semi-closed seas. It is unusual to highlight overfishing by ships, as coastal states' resources do not allow for effective safety controls and as a result, there are a number of severely depleted fisheries worldwide. It is therefore vital that conservation and management measures for straddling fish stocks and highly migratory fish stocks continue and increase, as it is a resource that has transcended many national jurisdictions. According to the priorities of the current research project, which include alignment and adaptation to the regulations of the Saudi marine environment, the research group of the current marine ecosystem project tries to analyze the variables contained in maritime transport and shipping and to measure the impact of these variables on the marine ecosystem, by focusing on four national priority areas: 1) reliable and long-term seafood supply; 2) thriving coastal ecosystems; 3) sustainable coastal development; and 4) risk resilience in coastal communities. Prioritizing coastal issues and gathering desired outcomes from.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: First records of two planktonic Indo-Pacific diatoms: Chaetoceros bacteriastroides and C. pseudosymmetricus in the Adriatic Sea
Autorzy:: Calic, M.
Ljubimir, S.
Bosak, S.
Car, A.
Tematy:: diatom
Chaetoceros bacteriastroides
Chaetoceros pseudosymmetricus
phytoplankton
marine ecosystem
Bacillariophyta
Adriatic Sea; Pokaż więcej
Data publikacji:: 2018
Powiązania:: https://bibliotekanauki.pl/articles/47839.pdf Link otwiera się w nowym oknie
Źródło:: Oceanologia; 2018, 60, 1
0078-3234
Pojawia się w:: Oceanologia
Opis:: Unusual occurrence of planktonic diatom species, Chaetoceros bacteriastroides and Chaetoceros pseudosymmetricus, was noticed in three different marine ecosystems of Adriatic Sea: the Krka Estuary and Telaščica Bay in the Central Adriatic, and in southern Adriatic offshore. From 2010 to 2015, these two Chaetoceros species were recorded in heterogeneous environmental conditions and in a very low abundances. Both species are regarded as very rare in world oceans, and consequently knowledge of their distribution and ecology is rather poor. Primarily described from tropical waters and showing Indo-Pacific distribution, C. bacteriastroides and C. pseudosymmetricus findings in Adriatic represent the northernmost records in world's oceans and seas. For C. pseudosymmetricus this is also the first occurrence in European seas. Areal expansion and introduction of new phytoplankton species in the Adriatic Sea might be related to different circulation regimes in the Ionian Sea and the concurrent rise in sea temperature in the Mediterranean in the last decade. Recent investigations have shown that entering currents, of either Atlantic/Western Mediterranean or Eastern Mediterranean origin, modify the composition of the plankton community in the Adriatic by bringing different newcomers.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: The distinguishing proof of a wide range of offices for oceanic route influencing ecosystem in Saudi Arabia
Autorzy:: Elentably, A.
Fisher, K.
Holger, S.
Alghanmi, A.
Alhrbi, S.
Tematy:: maritime ecosystem survay
ecosystem in Saudi Arabia
marine ecosystem
oceanic route
ocean journey
marine climate
international shipping
red sea; Pokaż więcej
Data publikacji:: 2022
Powiązania:: https://bibliotekanauki.pl/articles/2211601.pdf Link otwiera się w nowym oknie
Źródło:: TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2022, 16, 3; 455--460
2083-6473
2083-6481
Pojawia się w:: TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Opis:: Navigational apparatuses, hardware and gadgets have created and the boat's route official needs to take assist in flighty ways with arranging and explore the ocean journey. The boat's official has a bunch of marine route hardware, which makes the upkeep of boats, freight and lives a lot simpler, because of mechanical advances. Subsequently, safeguarding the marine climate. As the absence of preparing and failure influence the climate, whether while moving boats to moor in ports or during cruising, as well as stacking and dumping activities in ports. Besides, momentum sailors are prepared to know how to function and work all advanced navigational hardware that made the excursion adrift smoother, more secure and safer. Positive aspects on the climate to be viable with current offices and robotization, the boat today has many high-level route hardware frameworks that give exact information to the journey, consequently keeping away from a large number of the negatives that happened in past times.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Numerical studies of the influence of food ingestion on phytoplankton and zooplankton biomasses
Autorzy:: Dzierzbicka-Glowacka, L.
Tematy:: biomass
nutrient
zooplankton
food ingestion
phytoplankton
mathematical model
marine ecosystem
herbivorous copepod; Pokaż więcej
Data publikacji:: 2002
Powiązania:: https://bibliotekanauki.pl/articles/47575.pdf Link otwiera się w nowym oknie
Źródło:: Oceanologia; 2002, 44, 1
0078-3234
Pojawia się w:: Oceanologia
Opis:: This paper presents the numerical simulations of the influence of food ingestion by a herbivorous copepod on phytoplankton and zooplankton biomasses (PZB) in the sea. The numerical studies were carried out using the phytoplankton- -zooplankton-nutrient-detritus PhyZooNuDe biological upperla yer model. This takes account both of fully developed primary production and regeneration mechanisms and of daily migration of zooplankton. In this model the zooplankton is treated not as a ‘biomass’ but as organisms having definite patterns of growth, reproduction and mortality.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Acid volatile sulphide estimation using spatial sediment covariates in the Eastern Upper Gulf of Thailand: multiple geostatistical approaches
Autorzy:: Chaikaew, P.
Sompongchaiyakul, P.
Tematy:: acid volatile sulphide
spatial variability
sediment
marine ecosystem
biogeochemical cycle
kriging
Thailand; Pokaż więcej
Data publikacji:: 2018
Powiązania:: https://bibliotekanauki.pl/articles/49001.pdf Link otwiera się w nowym oknie
Źródło:: Oceanologia; 2018, 60, 4
0078-3234
Pojawia się w:: Oceanologia
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Galveston Bay dynamics under different wind conditions
Autorzy:: Salas-Monreal, D.
Anis, A.
Salas-de-Leon, D.A.
Tematy:: suspended particle
dispersion
shallow estuary
Galveston Bay
dynamics
wind condition
marine ecosystem; Pokaż więcej
Data publikacji:: 2018
Powiązania:: https://bibliotekanauki.pl/articles/48132.pdf Link otwiera się w nowym oknie
Źródło:: Oceanologia; 2018, 60, 2
0078-3234
Pojawia się w:: Oceanologia
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: First report of Protoperidinium steinii (Dinophyceae) bloom from the coastal marine ecosystem - an observation from tropical Indian waters
Autorzy:: Sathishkumar, R.S.
Sahu, G.
Mohanty, A.K.
Arunachalam, K.D.
Venkatesan, R.
Tematy:: Protoperidinium steinii
Dinophyceae
bloom
marine ecosystem
coastal ecosystem
red tide
eutrophication
backwater
Bengal Bay
India; Pokaż więcej
Data publikacji:: 2021
Powiązania:: https://bibliotekanauki.pl/articles/2078883.pdf Link otwiera się w nowym oknie
Źródło:: Oceanologia; 2021, 63, 3; 391-402
0078-3234
Pojawia się w:: Oceanologia
Opis:: A dense bloom of Protoperidinium steinii was observed in the backwaters adjoining the western Bay of Bengal, Kalpakkam coast, which might be the first report for the world oceans. The brownish-red bloom appeared on 2 October 2019, and it was monitored on alternate days up to 14 October. Surface water temperature was about 27.5°C and salinity was
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Evaluation of consumers awareness of the impact of UV filters on marine ecosystems
Autorzy:: Wilczyńska, A.
Engler-Jastrzębska, M.
Tematy:: oil spill
marine pollution
marine ecosystem
renewable energy
climate change
UV filters
overfishing
sunscreen cosmetics; Pokaż więcej
Data publikacji:: 2024
Powiązania:: https://bibliotekanauki.pl/articles/59123324.pdf Link otwiera się w nowym oknie
Źródło:: TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2024, 18, 1; 179-183
2083-6473
2083-6481
Pojawia się w:: TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Opis:: Increased public awareness of the negative effects of excessive exposure to UV radiation and concerns about the risk of skin cancer cause a growing interest in sunscreen products. This is especially true in tropical countries where exposure to ultraviolet radiation emitted by the sun is greater. The global use of UV filters results in the appearance of a new class of environmental pollution. This situation raises considerable concerns about the quality of the environment and the impact of these compounds on humans and other organisms. Therefore the aim of our study was to examining consumers' awareness of the threats to the marine environment, with particular emphasis on sunscreen substances (UV filters). The quantitative research was carried out on a group of 287 respondents, using the proprietary questionnaire that included questions about impact of selected UV filters on marine ecosystems. Respondents were also asked about their concern about marine environmental issues and actions they take to minimize their negative impact on the marine environment. The findings indicate that Polish consumers possess moderate awareness of marine environmental issues and low awareness of impact of UV filters on marine ecosystems.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Adenosine triphosphate in the marine boundary layer in the Southern Baltic Sea
Autorzy:: Pryputniewicz, D.
Falkowska, L.
Burska, D.
Tematy:: organic matter
marine boundary
adenosine triphosphate
coastal water
vertical distribution
spring
microlayer
Baltic Sea
marine ecosystem; Pokaż więcej
Data publikacji:: 2002
Powiązania:: https://bibliotekanauki.pl/articles/48770.pdf Link otwiera się w nowym oknie
Źródło:: Oceanologia; 2002, 44, 4
0078-3234
Pojawia się w:: Oceanologia
Opis:: Changes in adenosine triphosphate (ATP) concentration were measured in the offshore and coastal waters of the GdańskBasi n in spring. As regards the vertical distribution, it was found that high ATP concentrations occurred mainly in the euphotic layer (above the thermocline) and near the bottom (below the halocline). The high concentrations of ATP in the euphotic layer resulted from primary and secondary production, while the other maximum was due to the presence of bacteria actively degrading organic matter. Changes in ATP concentration in the euphotic layer were closely correlated with the phase of the day. An increase in ATP concentrations in the surface microlayer was observed in the evening and at night, probably as a result of heterotroph proliferation. During daylight, ATP production was inhibited by increasing radiation, hence its concentrations in the sea surface microlayer were considerably lower. Strong winds exerted a significant influence on ATP concentrations in the surface microlayer and in the subsurface water. Windstress depressed ATP concentrations. The biomass of living microorganisms in the microlayer was comparable with the microbiomass beneath the halocline.
Dostawca treści:: Biblioteka Nauki

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