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Wyszukujesz frazę "Aquaculture" wg kryterium: Wszystkie pola


Tytuł:
Aquaculture for sustainable development in Nigeria
Autorzy:
Okwodu, Nicholas E.
Powiązania:
https://bibliotekanauki.pl/articles/1192662.pdf
Data publikacji:
2016
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Aquaculture
fish farming
farm
developing countries
Opis:
Aquaculture is the rational rearing of fish and other aquatic organism in man-made ponds, reservoir and cages. It is also referred to as fish farming. Aquaculture is still being practiced at subsistence level in Nigeria. It is essentially a rural, secondary and part-time activity taking place in small farms in small freshwater ponds. Aquatic organisms produced through aquaculture include fish, aquatic invertebrates, planktons and aquatic plants (seaweeds). Aquaculture came as a solution to wild stock which are been depleted, to meet the protein need of the rural population and to overcome the problems inherent in wild fisheries. The application of aquaculture has unveiled to an extent the degree to which fish farming can sustain the economy and provide the necessary protein need of the country. The management of aquaculture for fish production starts from the setting up of the farm until the ponds begin to yield. The major management problem of fishery conservation is how to control both man and the aquatic crops for the present and the future when the demand will probably be greater than now. Aquaculture is very important and is the fastest growing animal based food producing sector particularly in developing countries.
Źródło:
World Scientific News; 2016, 47, 2; 151-163
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Economic significance of the sea fisheries and aquaculture industries
Znaczenie gospodarcze rybołówstwa morskiego i akwakultury
Autorzy:
Berkowska, Elżbieta
Powiązania:
https://bibliotekanauki.pl/articles/23352296.pdf
Data publikacji:
2023
Wydawca:
Kancelaria Sejmu. Biuro Analiz Sejmowych
Tematy:
fishery
aquaculture
economy
Opis:
The article focuses on the analysis of the importance of fisheries and aquaculture to Poland’s economy. The article presents statistics on the value, employment and budget allocated to fisheries and aquaculture.
Źródło:
Zeszyty Prawnicze BAS; 2023, 2(78); 203-207
1896-9852
2082-064X
Pojawia się w:
Zeszyty Prawnicze BAS
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Biotechnology in freshwater finfish aquaculture
Autorzy:
Luczynski, M.
Ocalewicz, K.
Powiązania:
https://bibliotekanauki.pl/articles/363230.pdf
Data publikacji:
2007
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie
Tematy:
akwakultura
biotechnologia
inżynieria genetyczna
pstrąg tęczowy
aquaculture
fish
biotechnology
genetic engineering
rainbow trout
Źródło:
Environmental Biotechnology; 2007, 3, 2; 37-38
1734-4964
Pojawia się w:
Environmental Biotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The challenges of aquaculture in protecting the aquatic ecosystems in the context of climate changes
Autorzy:
Wróbel, Jacek
Gałczyńska, Małgorzata
Tański, Adam
Korzelecka-Orkisz, Agata
Formicki, Krzysztof
Powiązania:
https://bibliotekanauki.pl/articles/27312664.pdf
Data publikacji:
2023
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
aquaponics
freshwater ecosystem
seawater ecosystem
greenhouse gases
integrated multi-trophic aquaculture
mariculture
pond
recirculating aquaculture system
water temperature
Opis:
The paper discusses the current prognoses of aquaculture development worldwide putting an emphasis on its effect on the environment and the issue of the protection of water reservoirs in different countries. Water consumption in diversified aquaculture systems is presented herein as well as the characteristics of the mechanical and biological water treatment methods in fish farms, with particular attention paid to the recirculating water systems. New aquaculture technologies using post-production waters are presented. The paper provides a discussion on the contribution of aquaculture to the global greenhouse gas emissions and the means of limiting this emission. The effect of climate change on aquatic ecosystems is presented in the context of the changes of the aquaculture production profile. The paper includes a brief presentation of the methods of mitigating the changes with respect to contamination of aquatic ecosystems as well as climate change. Reducing the water footprint can be achieved through selective breeding, species diversification and implementation of more technologically advanced aquaculture systems such as: integrated multi-trophic aquaculture, aquaponics and recirculation systems in aquaculture. The need for certification of fish farms with water recirculation systems is justified in the paper. The issues addressed herein are summarised and the main areas for extending the research promoting preservation of aquatic ecosystems in aquaculture are presented.
Źródło:
Journal of Water and Land Development; 2023, 57; 231--241
1429-7426
2083-4535
Pojawia się w:
Journal of Water and Land Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Four stage hybrid constructed wetlands treating low-strength aquaculture wastewater with and without artificial aeration
Autorzy:
Zhang, S.-Y.
Li, G.
Li, X.
Tao, L.
Powiązania:
https://bibliotekanauki.pl/articles/207748.pdf
Data publikacji:
2015
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
wastewater treatment
aquaculture
water pollution
wetlands
aquaculture wastewater
artificial aeration
oczyszczanie ścieków
akwakultura
zanieczyszczenie wody
mokradła
sztuczne napowietrzanie
tereny podmokłe
Opis:
Driven by the booming demands for healthy food, aquaculture industry has to deal with the problem of water pollution appropriately so as to achieve sustainable development. In this study, a combination of four stage CWs (three horizontal subsurface flows followed by one free water surface flow) was configured to treat low-strength aquaculture wastewater. For performance assessment, the wetlands were monitored over three years, during which artificial aeration was added to them. By the results, the organic matters and nutrients were mainly sequestered in the anterior subsurface flows, while the surface flow mainly contributed to DO improvement. These results probably implied no necessity of excessive subsurface flows connected in a staged manner. In addition, the artificial aeration improved the treatment performance on ammonium-N, TN and TP in the first-stage CW.
Źródło:
Environment Protection Engineering; 2015, 41, 3; 31-42
0324-8828
Pojawia się w:
Environment Protection Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modifications in aquaculture technology for increasing fishpond’s primary productivity in temperate climatic conditions
Autorzy:
Kolek, Ludmiła
Irnazarow, Ilgiz
Powiązania:
https://bibliotekanauki.pl/articles/2174367.pdf
Data publikacji:
2022
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
integrated intensive-extensive aquaculture
carbon-nitrogen ratio
periphyton
pond aeration
polyculture fish farming
Opis:
Aquaculture plays a great role in producing foodstuffs, sustaining inland capture fisheries and providing employment. The key to future development in pond aquaculture is diversification of production technology, intensity, and function connected to increasing the environmental value of pond areas. New production systems involve a combination of intensive and extensive pond culture, increasing productivity and improving nutrient utilisation and fish species diversification. The most important principle of these systems is the possibility to use the wastes from intensive aquaculture as the input for extensive, environment-friendly fish production. These systems were proven to be profitable and sustainable in tropical and subtropical areas. However, for temperate climatic conditions, such data are scarce. For this reason, we decided to discuss modifications that, in our opinion, can be applied in an extensive part of the integrated intensive-extensive system in temperate climatic conditions in order to increase the overall productivity of the pond aquaculture.
Źródło:
Journal of Water and Land Development; 2022, 54; 210--219
1429-7426
2083-4535
Pojawia się w:
Journal of Water and Land Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Basics of Aquaculture and Hydrobiotechnology
Autorzy:
Fedonenko, Olena
Marenkov, Oleh
Sharamok, Tetiana
Kolesnik, Natalia
Grygorenko, Tetiana
Symon, Mariia
Powiązania:
https://bibliotekanauki.pl/articles/1178279.pdf
Data publikacji:
2017
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Californian red worm
algae
apple snails
aquaculture
freshwater prawn
grape snail
nematodes
Opis:
The manual sets out the necessary material concerning the cultivation of certain objects of aquaculture that can be used as feed additives. The manual is intended for practical work on aquaculture, as well as for independent work and self-study students. The material is designed for students of biological faculties of full-time and correspondence forms of training.
Źródło:
World Scientific News; 2017, 88, 1; 1-57
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Scale-dependent environmental control of mesozooplankton community structure in three aquaculture subtropical bays of China
Autorzy:
Sun, D.
Liu, Z.
Wang, C.
Powiązania:
https://bibliotekanauki.pl/articles/48224.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
zooplankton
aquaculture
pollution effect
multivariate analysis
subtropical bay
China
Źródło:
Oceanologia; 2016, 58, 2
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Marine Aquaculture under International Law
Akwakultura morska w prawie międzynarodowym
Autorzy:
Puszkarski, Jakub
Powiązania:
https://bibliotekanauki.pl/articles/1954822.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
marine aquaculture
mariculture
international law
sustainable development
akwakultura morska
marikultura
prawo międzynarodowe
zrównoważony rozwój
Nauki Humanistyczne i Społeczne
Opis:
This article aims to present the issues related to the legal framework for conducting economic activity in the form of marine aquaculture, consisting of farming marine organisms. The work analyses mainly selected the regulations of international law because it is these regulations that shape the rights and obligations of states, producers, farmers and society in the field of ocean farming, as well as in the context of marine resources, which are undoubtedly a common good for all mankind. The author also discusses the legal status of maritime areas in which aquaculture is cultivated.
Celem niniejszego artykułu jest przedstawienie zagadnień dotyczących ram prawnych prowadzenia działalności gospodarczej w postaci akwakultury morskiej, polegającej na chowie i hodowli organizmów morskich. Praca poddaje analizie w głównej mierze wybrane regulacje prawa międzynarodowego, gdyż to właśnie te regulacje kształtują prawa i obowiązki państw, producentów, hodowców i społeczeństwa w zakresie uprawy morza, jak i w kontekście zasobów morskich, które niewątpliwie są dobrem wspólnym całej ludzkości. Autor porusza również problematykę statusu prawnego obszarów morskich, w których akwakultura jest uprawiana.
Źródło:
Prawo Morskie; 2020, XXXVIII; 83-96
0860-7338
Pojawia się w:
Prawo Morskie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Implementation of an Integrated Floating Wetland and Biofilter for Water Treatment in Nile Tilapia Aquaculture
Autorzy:
Somprasert, Somanas
Mungkung, Sattaya
Kreetachat, Nathiya
Imman, Saksit
Homklin, Supreeda
Powiązania:
https://bibliotekanauki.pl/articles/1955489.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
aquaculture
biofilter
fish pond water
floating wetland
Opis:
Due to the high nutrient and organic matter contents of fish pond water, the water must be treated before disposal to prevent the eutrophication and deterioration of natural receiving waters. Floating wetlands (FTWs) and biofilters are environmentally friendly ecological treatments that can be used for this water. Thus, this study aimed to investigate the performance of FTWs with biofilters (FTW/Bs) for nutrient and organic compound removal. Two FTW/ Bs were applied in a pond with 5,000 Nile tilapia. The macrophyte species in the FTWs were Cyperus (Cyperus spp.) and Heliconia (Heliconia spp.). The buoyant mats of the FTWs were made from bamboo, and 200 bioballs were loaded below the mats. The water quality parameters in the pond were monitored for 5 weeks between the control test without the FTW/Bs and the experimental test with FTW/Bs at sites 1 (S1) to 8 (S8). The FTW/Bs were located at sites 2 (S2) and 3 (S3). The results showed reductions in all water quality parameters except orthophosphate (ortho-P) at S2 and S3. The COD, BOD, NH4-N, and SS at S2 and S3 parameters during the experimental test were significantly lower than those during the control test, in the ranges of 20.34–33.96, 25.47–29.41, 25.86–27.87, and 26.00–28.44%, respectively.
Źródło:
Journal of Ecological Engineering; 2021, 22, 8; 146-152
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of difference filter media on Recirculating Aquaculture System (RAS) on tilapia (Oreochromis niloticus) production performance
Autorzy:
Tanjung, Ricky Rahmat Maliki
Zidni, Irfan
Iskandar, Iskandar
Junianto, Junianto
Powiązania:
https://bibliotekanauki.pl/articles/1075772.pdf
Data publikacji:
2019
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Oreochromis niloticus
filter media
production
recirculating aquaculture system
tilapia
Opis:
This research aims to determine the composition of the best filter media on tilapia (Oreochromis niloticus) production performance. The method used in this research is experimental methods use Completely Randomized Design (CRD), which consist of four variables and three replications. The variable used is (A) without media filter (Control); (B) combination of cotton, bio ball and charcoal; (C) combination of cotton bioring and charcoal; (D) combination of cotton, Japanese matt and charcoal. The test fish used 180 tilapia fish with 7-9 cm length size. Tanks that used measured 60 cm x 30 cm x 36 cm as many as 12 pieces. The density during the research was 15 tails per tank. Duration of maintenance is 40 days. The feeding level is given by 5% of fish body weight. Water quality parameters (temperature, dissolved oxygen, pH, ammonia, and nitrate) were observed every 10 days for 40 days. Other parameters are survival rate, absolute length and weight growth, specific growth rate and feed convertion ratio observed every 7 days for 40 days. The results showed that the best composition of filter media for tilapia production performance was combination of cotton, bioball, and charcoal. Tilapia production performance obtained a combination of cotton filter media, bioball, and charcoal with 100% survival rate, length growth 2.17 cm, weight growth of 9.91 g, and specific growth rate of 2.3% and feed conversion ratio of 1.88.
Źródło:
World Scientific News; 2019, 118; 194-208
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Increased Emergency Preparedness in Coastal Aquaculture
Autorzy:
Salomonsen, C.
Selvik, Ø
Berg, T. E.
Thorvaldsen, T.
Powiązania:
https://bibliotekanauki.pl/articles/24201479.pdf
Data publikacji:
2023
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
Norwegian Emergency Towing Service
crew competences
emergency preparedness
aquaculture
emergency preparedness vessel
public emergency preparedness
emergency preparedness vessel equipment
on-scene commander
Opis:
Aquaculture is an industry that has developed rapidly over the past decades. Despite several hazards in the operations, emergency preparedness is not at the same level as in the rest of the maritime industry. This paper highlights some possibilities to increase the aquaculture industry’s coastal emergency preparedness. This paper is the result of the innovation project “Coastal Emergency Preparedness” funded by the Norwegian Research Council and industry partners. The aquaculture industry must establish its own emergency preparedness. In this paper, the innovation of a fleet of emergency preparedness vessels along the coastline, which could fill the gaps in emergency preparedness, is presented. The vessels would be of varied sizes, with different equipment and response times, and could assist the aquaculture industry during local incidents or large‐scale ones, such as algae blooms or winter storms, that affect many sites at the same time. Each production zone would need its own dedicated fleet due to biosecurity regulations. The emergency preparedness vessel fleet would be led by an on‐scene commander. The fleet would deal with oil spills and tasks such as emergency towing, firefighting, rescue of people, recapturing of fish, silage making, algae detection, and diving missions. With such a vessel fleet, small and large aquaculture companies could increase their emergency preparedness with a common strategy and shared resources.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2023, 17, 3; 523--531
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Biotechnological bases of organization of industrial crayfish farm in Ukraine
Autorzy:
Marenkov, Oleh
Powiązania:
https://bibliotekanauki.pl/articles/1031670.pdf
Data publikacji:
2020
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
aquaculture
biotechnology
crayfish
farming
ponds
Opis:
Crayfish are valuable invertebrates that are constantly in great demand in all corners of the Earth. Breeding crayfish is not only large-scale production as it can also be arranged in small volumes using pools and installations of closed water supply. Cultivation of crayfish generates profit after a certain period of time, if all biotechnological norms of cultivation are considered. Cultivation of crayfish is a rather promising production, in which it is possible to obtain from 200 to 300% of stable profits during 3–4 years old. The article gives an overview of the technology of growing crayfish, taking into account the characteristics of farming in Ukraine. The basic biotechnological stages of the establishment and operation of the economy are determined, calculations of capital expenditures for the establishment of the economy are presented and the profitability of the project for the production of freshwater crayfish is determined. Cultivation of river crayfish makes it possible to obtain environmentally friendly products that can compete on the markets of Ukraine or EU countries. Also, this way of growing crayfish allows getting stocking material for release in natural reservoirs in order to restore the populations of river crayfish.
Źródło:
World News of Natural Sciences; 2020, 28; 1-12
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fish pond sediment from aquaculture production - current practices and the potential for nutrient recovery: a Review
Autorzy:
Dróżdż, D.
Malińska, K.
Mazurkiewicz, J.
Kacprzak, M.
Mrowiec, M.
Szczypior, A.
Postawa, P.
Stachowiak, T.
Powiązania:
https://bibliotekanauki.pl/articles/2082652.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
fish pond sediment
intensive aquaculture
nutrient
recovery
agriculture
Opis:
The recent increase in fish production has resulted in the accumulation of fish pond sediment. This sediment accumulates over time and can lead to a reduction in the depth of ponds and in the living space available for fish, it may also lead to a depletion in dissolved oxygen. Therefore, the removal of sediment from fresh water ponds is crucial for pond maintenance, and thus economical fish production. Fish pond sediment is rich in nutrients and organic matter, and therefore it may have potential as a fertilizer in crop production, nursery pot culture, etc. However, it contains compounds that undergo rapid degradation producing unpleasant odours and posing a threat to the environment, therefore it needs to be managed and handled efficiently in an environmentally sound and sustainable manner. The overall goal of this study was to analyse the current state and management practices of fish pond sediment generated in the existing aquaculture systems, with special reference to organic aquaculture, and the potential for the recovery of nutrients through bioconversion processes to organic fertilizers.
Źródło:
International Agrophysics; 2020, 34, 1; 33-41
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A Water Quality Evaluation of Integrated Mangrove Aquaculture System for Water Treatment in Super-Intensive White Leg Shrimp Pond
Autorzy:
Mahmudi, Mohammad
Musa, Muhammad
Bunga, Alamanda
Wati, Nur Azlina
Arsad, Sulastri
Lusiana, Evellin Dewi
Powiązania:
https://bibliotekanauki.pl/articles/2086395.pdf
Data publikacji:
2022
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
coastal ecosystem
eco-aquaculture
pollution index
principal component
Opis:
White leg shrimp (Litopenaeus vannamei) is known as a prime aquacultural commodity in Indonesia. However, the rapid growth of shrimp farming has resulted in widespread destruction of coastal ecosystems, including mangrove swamps. Intensification of shrimp culture has led to many other environmental problems. Integration of mangroves into aquaculture systems (IMAS) should be considered as a way to preserve the mangrove ecosystem as well as sustainability of the aquaculture business by treating the influent and effluent water. This study aimed to assess the benefits of integrating mangroves into shrimp aquaculture, in terms of water quality. The results showed that temperature, dissolved oxygen (DO), and nitrite levels in the water significantly differed between sample sites. PCA analysis indicates that total organic matter (TOM), nitrates, nitrites, and ammonia were the principal factors in the overall water quality of the ponds. The highest pollution index was found in the super-intensive shrimp ponds ('moderately polluted'), while the other sites, including the mangrove area, were categorized as 'lightly polluted'. These findings suggest that the presence of mangroves may improve the quality of aquaculture wastewater, but the pollution index may still not reach the 'good' category. It is therefore recommended that a wastewater treatment plant be installed to support the integrated aquaculture system.
Źródło:
Journal of Ecological Engineering; 2022, 23, 4; 287--296
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł

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