Multi-criteria based geospatial assessment to utilize brackishwater resources to enhance fish production

Aquaculture ◽  
2021 ◽  
Vol 537 ◽  
pp. 736528
Author(s):  
M. Jayanthi ◽  
S. Thirumurthy ◽  
M. Samynathan ◽  
P. Kumararaja ◽  
M. Muralidhar ◽  
...  
Keyword(s):  
Fish Production

The Hornsby Bend Hyacinth Facility in Austin, Texas

1987 ◽  
Vol 19 (10) ◽  
pp. 41-49 ◽  
Author(s):  
Ray Dinges ◽  
Jim Doersam
Keyword(s):  
Environmental Protection ◽  
Environmental Protection Agency ◽  
Plant Material ◽  
Animal Species ◽  
Performance Data ◽  
Operational Performance ◽  
Fish Production ◽  
Protection Agency ◽  
Functional Characteristics ◽  
The City

The Hornsby Bend Hyacinth Facility, the first such system built under the U. S. Environmental Protection Agency “Construction Grants Program”, represents the culmination of over a decade of experience at the City of Austin with hyacinth treatment. The facility consists of three culture basins 265 m in length with an area of 1.6 ha. To permit year-round hyacinth culture, basins are covered with a 2.06 ha unitary greenhouse structure. Fenced exclusion areas at intervals along sides of basins serve as natural aerators and enhance fish production. The system, operated in an aerobic mode, was designed to daily treat about three million liters of sludge lagoon supernatant. Exclusion of large vertebrate predators and stocking of basins with selected animal species will provide a unique ecosystem. Basins were planted with hyacinth in late October, 1985 and discharge commenced on February 3, 1986. Functional characteristics and ecological considerations of the facility are discussed and operational performance data are presented. Maintenance harvesting of hyacinth and disposition of plant material are described. Application of greenhoused hyacinth treatment systems are addressed.

scholarly journals Impact of the Strong Downwelling (Upwelling) on Small Pelagic Fish Production during the 2016 (2019) Negative (Positive) Indian Ocean Dipole Events in the Eastern Indian Ocean off Java

Climate ◽  
2021 ◽  
Vol 9 (2) ◽  
pp. 29
Author(s):  
Jonson Lumban-Gaol ◽  
Eko Siswanto ◽  
Kedarnath Mahapatra ◽  
Nyoman Metta Nyanakumara Natih ◽  
I Wayan Nurjaya ◽  
...  
Keyword(s):  
Indian Ocean ◽  
Indian Ocean Dipole ◽  
Pelagic Fish ◽  
Eastern Indian Ocean ◽  
Fish Production ◽  
Small Pelagic Fish ◽  
Field Surveys ◽  
Chl A ◽  
Positive Indian Ocean Dipole ◽  
The Impact

Although researchers have investigated the impact of Indian Ocean Dipole (IOD) phases on human lives, only a few have examined such impacts on fisheries. In this study, we analyzed the influence of negative (positive) IOD phases on chlorophyll a (Chl-a) concentrations as an indicator of phytoplankton biomass and small pelagic fish production in the eastern Indian Ocean (EIO) off Java. We also conducted field surveys in the EIO off Palabuhanratu Bay at the peak (October) and the end (December) of the 2019 positive IOD phase. Our findings show that the Chl-a concentration had a strong and robust association with the 2016 (2019) negative (positive) IOD phases. The negative (positive) anomalous Chl-a concentration in the EIO off Java associated with the negative (positive) IOD phase induced strong downwelling (upwelling), leading to the preponderant decrease (increase) in small pelagic fish production in the EIO off Java.

scholarly journals Fish protection during fish production. Organizational conditions for fish welfare

Marine Policy ◽  
2021 ◽  
Vol 129 ◽  
pp. 104530
Author(s):  
Kristine Vedal Størkersen ◽  
Tonje C. Osmundsen ◽  
Lars Helge Stien ◽  
Christian Medaas ◽  
Marianne Elisabeth Lien ◽  
...  
Keyword(s):  
Fish Production ◽  
Fish Welfare ◽  
Organizational Conditions ◽  
Fish Protection

Total Dissolved Solids as a Predictor of Lake Biomass and Productivity

1983 ◽  
Vol 40 (1) ◽  
pp. 92-95 ◽  
Author(s):  
E. E. Prepas
Keyword(s):  
Chlorophyll A ◽  
Significant Relationship ◽  
Positive Relationship ◽  
Biomass Productivity ◽  
Total Dissolved Solids ◽  
Fish Production ◽  
Dissolved Solids ◽  
Significant Positive Relationship ◽  
Morphoedaphic Index ◽  
Shield Lakes

Total dissolved solids (TDS) and chlorophyll a were not related in 25 lakes which were all off the Precambrian Shield. Both on-shield and off-shield lakes were included in the previous reports which showed a significant relationship between TDS and productivity. When data from on-shield and off-shield lakes were analyzed separately, there was no significant positive relationship between TDS and lake biomass or productivity. It was also shown that mean depth ([Formula: see text]) was as good a predictor of fish production as the TDS: [Formula: see text] ratio, the morphoedaphic index.Key words: TDS, biomass, productivity, morphoedaphic index, chlorophyll a, lakes

Prospects of Fisheries development in Ox-Bow lakes of Eastern Uttar Pradesh specially in Ballia district

2021 ◽  
Vol 27 (2) ◽  
Author(s):  
A.K. Jha ◽  
Deepak Kumar Dwivedi ◽  
D. K. Paul
Keyword(s):  
Present Article ◽  
Uttar Pradesh ◽  
Fish Production ◽  
Fish Yield ◽  
Physico Chemical ◽  
Eastern Uttar Pradesh

The present article deals with the fisheries development of three important Ox-Bow Lakes of Ballia district of eastern Uttar Pradesh in relation to physico-chemical and biological conditions. The results were found conducive for Fisheries development. The results indicate clearly that potential fish yield is not being realized from the lakes and there is immense scope for increase in Fish production.

Circle Fish: Social-economic Locomotive of Perlis Village

2021 ◽  
Vol 2 (2) ◽  
pp. 8-18
Author(s):  
Suci Masliawati ◽  
Fikarwin Zuska
Keyword(s):  
Production Process ◽  
Social Economic ◽  
Economic Consequences ◽  
Fishing Gear ◽  
Fish Production ◽  
Key Informants ◽  
Productive Work ◽  
Work Cycle ◽  
North Sumatra

ABSTRACT: This study aims to describe the exploitation of cerbung fish and its socio-economic consequences as a driver of the economy of the residents of Perlis Village, West Brandan District, Langkat Regency, North Sumatra. The method used to obtain data and information in this research is live-in with residents, while carrying out observations and interviews with informants in each stage of the cerbung fish production process as well as key informants. The results of the study show that the exploitation of cerbung fish has created a productive work cycle of ‘money printing' for many people so that this business can act as the economic locomotive of Perlis Village. Those involved as agents in this business are fishermen or fish catchers (men), women splitting and drying fish, boat and yard washers (fishing gear), ducklings, fish shovelers, canoe miners, and owners shop.   ABSTRAK: Penelitian ini bertujuan untuk mendeskripsikan pengusahaan ikan cerbung dan akibat sosial-ekonominya sebagai penggerak perekonomian penduduk Desa Perlis, Kecamatan Brandan Barat, Kabupaten Langkat Sumatera Utara. Metode yang digunakan untuk mendapatkan data dan informasi dalam penelitian ini adalah tinggal-bersama warga (live-in), sembari melaksanakan pengamatan (observation) dan wawancara (interview) dengan informan-pelaku di masing-masing tahap proses produksi ikan cerbung dan juga informan kunci. Hasil penelitian menunjukkan bahwa pengusahaan ikan cerbung telah menimbulkan siklus kerja produktif ‘pencetak uang’ untuk banyak orang sehingga bisnis ini bisa berperan sebagai lokomotif ekonomi Desa Perlis. Mereka yang terlibat sebagai pelaku (agent) dalam usaha ini ialah nelayan atau penangkap ikan (laki-laki), perempuan pembelah dan penjemur ikan, tukang cuci boat dan pekarangan (alat tangkap), anak itik, tukang sorong ikan, penambang sampan, dan pemilik kedai.

Sign in / Sign up

Export Citation Format

Share Document