scholarly journals Nutrient budgets in a small-scale freshwater fish pond system in Indonesia

Aquaculture ◽  
2019 ◽  
Vol 504 ◽  
pp. 267-274 ◽  
Author(s):  
Simon Pouil ◽  
Reza Samsudin ◽  
Jacques Slembrouck ◽  
Ahmad Sihabuddin ◽  
Gusnia Sundari ◽  
...  
2020 ◽  
Vol 10 (2) ◽  
pp. 124
Author(s):  
Baiq Diah Fitasari

The alternative  method  that can be used to determine the value of a multiple linear regression variable coefficient is goal programming  method. The kind of data used in this research is secondary data namely the production of freshwater fish pond system data in the Province of West Nusa Tenggara based on Fisheries Service of West Nusa Tenggara Province year 2018. Software used to assist in reckoning is POM for Windows.Settlement calculation procedure in this research was conducted in two stages, namely the calculation with variable ????????4 and the calculation without variables ????????4. The results obtained with the variable ????????3 namely ????????1 = ????????0 = 64,08 ; ????????2 = ????????1 = 2,67 ; ????????3 = ????????2 = 0,27 ; ????????4 = ????????3 = 0, and the results obtained without variables ????????4 namely ????????1 = ????????0 = 64,08 ; ????????2 = ????????1 = 2,67 ; ????????3 = ????????2 = 0,24. The production of fresh water fish pond system in the Province of West Nusa Tenggara were affected by extensive fish ponds and food availability, while the number of domestic aquaculture freshwater fish do not affect production. Keywords : Multiple Linear Regression, Goal Programming, Production of Fish.


2021 ◽  
Vol 14 (1) ◽  
pp. 61-64
Author(s):  
Felix Meutchieye ◽  
Henri Grisseur Djoukeng ◽  
Youssouf Jamilou Ngouyamsa ◽  
Yacouba Manjeli

Western Cameroon is one of the regions most in needs of innovative and healthy solutions for freshwater fish conservation. This study aimed at evaluating the socio-economical characteristics of fish smokers and technical factors on the species smoked in the Noun Division. A total of 91 fish smokers were chosen. The socio-economic data were on age, gender, religion, number of dependents, marital status, ethnic group, education level, economic activities, smoking goals and workforce. The results of this study showed that fish smoking is practiced mainly by women (70%) which is common in Sub Sahara Africa small scale fish sector. The smokers are aged from 20 to 50 years (80%), married (92.2%) and taking care of a family of 1 to 10 persons (80%). These smokers are Muslim (74%), belonging to the Bamoun ethnic group (81%). They were also involved in other activities: agriculture (29%) and trade (1%). About 67% of the sampled smokers’ population had an experience of more than 10 years in the domain. The Purpose of smoking was largely sales (97%) and subsistence (3%). Nile tilapia (Oreochromis niloticus) was the most smoked species (36%), followed by African catfish (Clarias gariepinus) with a proportion of 32%. The average quantity of fresh fish smoked was 110 kg/day/smoker, with Oreochromis niloticus being more produced (60±4.74 kg/day/smoker). With regard to the smoking techniques used, hygiene measures were poorly respected. The major constraints revealed by the survey were that freshwater’s traditional fish smoking activities in Noun Division are influenced by gender, economic and cultural background. There is a lack of technical support material and financial means. Any implications for future investigations on health and food safety will be suitable for fresh fish smokers and the entire consumers.


Hydrobiologia ◽  
1970 ◽  
Vol 35 (2) ◽  
pp. 297-304 ◽  
Author(s):  
Asif A. Khan ◽  
A. Qayyum Siddiqui ◽  
M. Nazir

Aquaculture ◽  
1977 ◽  
Vol 12 (4) ◽  
pp. 369-370
Author(s):  
C. Nash

2018 ◽  
Vol 115 (29) ◽  
pp. 7623-7628 ◽  
Author(s):  
Etienne Fluet-Chouinard ◽  
Simon Funge-Smith ◽  
Peter B. McIntyre

Consumption of wild-caught freshwater fish is concentrated in low-income countries, where it makes a critical contribution to food security and livelihoods. Underestimation of inland harvests in official statistics has long been suspected due to unmonitored subsistence fisheries. To overcome the lack of data from extensive small-scale harvests, we used household consumption surveys to estimate freshwater fish catches in 42 low- and middle-income countries between 1997 and 2014. After accounting for trade and aquaculture, these countries collectively consumed 3.6 MT (CI, 1.5–5.8) more wild-caught freshwater fish than officially reported, reflecting a net underreporting of 64.8% (CI, 27.1–103.9%). Individual countries were more likely to underestimate (n = 31) than overestimate (n = 11) catches, despite conservative assumptions in our calculations. Extrapolating our findings suggests that the global inland catch reported as 10.3 MT in 2008 was more likely 16.6 MT (CI, 2.3–30.9), which accords with recent independent predictions for rivers and lakes. In human terms, these hidden harvests are equivalent to the total animal protein consumption of 36.9 (CI, 30.8–43.4) million people, including many who rely upon wild fish to achieve even minimal protein intake. The widespread underreporting uncovered by household consumption surveys indicates that inland fisheries contribute far more to global food security than has been recognized previously. Our findings also amplify concerns about the sustainability of intensive fishery exploitation as degradation of rivers, lakes, and wetlands continues apace.


Aquaculture ◽  
2013 ◽  
Vol 416-417 ◽  
pp. 334-345 ◽  
Author(s):  
Domenico Caruso ◽  
Angela Maria Lusiastuti ◽  
Taukhid ◽  
Jacques Slembrouck ◽  
Oman Komarudin ◽  
...  

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