scholarly journals Distribution of Ecosystem Health Indicators for Biomonitoring of Oil Pollution in the Western Niger Delta, Nigeria

2019 ◽  
pp. 1-5
Author(s):  
Tambeke N. Gbarakoro ◽  
Onome Okagbare ◽  
Adanna Ucheagwu ◽  
M. Aline E. Noutcha ◽  
Samuel N. Okiwelu
Keyword(s):  
Niger Delta ◽  
Ecosystem Health ◽  
Oil Pollution ◽  
Health Indicators ◽  
Free Living ◽  
Swamp Forest ◽  
Soil Microarthropods ◽  
Freshwater Swamp ◽  
Full Complement ◽  
Physical And Chemical

As a result of the limitations of physical and chemical methods for monitoring pollution, interest on the more reliable biological monitoring intensified over the past four decades. Soil microarthropods, specifically the free-living mites (Cryptostigmata, Mesostigmata, Prostigmata) and Collembolans were used as monitor (ability to withstand pollutants) and indicator (sensitive to pollutants) species in the Eastern Niger Delta. Study was undertaken in the Western Niger Delta (Delta State) across three eco-vegetational zones (freshwater swamp forest, Mangrove swamp forest, Lowland rainforest) in the area to determine if these ecosystem health indicators were widely distributed in these zones. Collections were made during the rainy season over a 4-month period. A modified Berlese-Tullgren funnel was used for extraction of microarthropds. Free-living mites: Cryptostigmata (Oribatida) – Archogozettes magnus, Opiida sp., Annecticarus sp., Bicyrthermania negeriana, Cephalida sp., Scheloribates sp., Galumnida sp., Mesostigmata (Gamasida) - Asca sp., Trichuropodida and Collembolan – Paronella sp., were widely distributed across the eco-vegetational zones. Oribatids were most abundant across eco-vegetational zones. These mesofauna contained the full complement of monitor and indicator species. It is therefore possible to use these mesofauna for biomonitoring of oil pollution across the Niger Delta (eastern and western sectors), Nigeria.

Next-Generation identification tools for Nee Soon freshwater swamp forest, Singapore

2018 ◽  
Vol 70 (1) ◽  
pp. 155-173 ◽  
Author(s):  
S.N. Kutty ◽  
◽  
W. Wang ◽  
Y. Ang ◽  
Y.C. Tay ◽  
...  
Keyword(s):  
Next Generation ◽  
Swamp Forest ◽  
Freshwater Swamp

Rediscoveries, new records, and the floristic value of the Nee Soon freshwater swamp forest, Singapore

2018 ◽  
Vol 70 (1) ◽  
pp. 49-69 ◽  
Author(s):  
K.Y. Chong ◽  
◽  
R.C.J. Lim ◽  
J.W. Loh ◽  
L. Neo ◽  
...  
Keyword(s):  
New Records ◽  
Swamp Forest ◽  
Freshwater Swamp

scholarly journals ECOLOGICAL ANALYSIS OF GELAM (Melaleuca cajuputi) ON PEATLAND IN SOUTH KALIMANTAN

2016 ◽  
Vol 7 (3) ◽  
pp. S77-S79
Author(s):  
Yudi Firmanul Arifin ◽  
Siti Hamidah ◽  
Yulian Firmana Arifin
Keyword(s):  
Field Survey ◽  
Raw Material ◽  
Ecological Analysis ◽  
Swamp Forest ◽  
Peat Swamp Forest ◽  
Peat Swamp ◽  
Ecological Aspects ◽  
Melaleuca Cajuputi ◽  
Physical And Chemical ◽  
Physic Analysis

Until now the raw material of wood especially Gelam (Melaleuca cajuputi) for supporting the construction of housing and other infrastructures is increasingly demand in Indonesia. On the Island of Borneo that partly consists of peat swamps needs Gelam very large and continuous, particularly for residential development. Ecological aspects are very important for supporting the silvicultural strategies. The aim of this study is to analyze ecological aspects which are very influence especially physical and chemical soil properties and microclimate as well. The utilization of study is to determine the silvicultural strategies for continuing production and conservation of Gelam in the future. The method was used a field survey around Gelam forest and did collecting samples and measuring there. The results showed in South Borneo the potency of Gelam is only 2,9-7,1 m3/ha and decreasing yearly. Normally Gelam with a diameter <4 cm have been cut down, as well as > 30 cm. Gelam can grow on the peat swamp forest where the soil was low pH 3.5-3.9. Most of pH of soil in these areas was influenced by phyrite (FeS2 of 0.4-2.2% and highest of Fe 90-302 ppm. C organic in the soil was included low-moderate 5.5-10.0%. Result of soil physic analysis showed composition of sand, dust, and clay of 9 : 54 : 57 % respectively. Temperature and humidity around peat swamp forest areas where was found Gelam were 31-33oC and 63-73% respectively. Most of areas around Gelam were grown Gelam Tikus (Syzygium inophylla) and some kind of shrubs.Key words: Gelam, potency, ecological aspects, silviculture

scholarly journals Comparing Household Environmental Health Indicators between Oil-bearing and Non-oil-bearing Communities in the Niger Delta Region of Nigeria

2020 ◽  
pp. 1-9
Author(s):  
Omosivie Maduka ◽  
Benson C. Ephraim- Emmanuel
Keyword(s):  
Environmental Health ◽  
Niger Delta ◽  
Health Indicators ◽  
Household Survey ◽  
Delta Region ◽  
Cross Sectional ◽  
Niger Delta Region ◽  
Refuse Disposal ◽  
Multistage Sampling

Background: Household environmental health indicators have contributed to the quality of life of the populace in regions of the world where they have been made available. This study compared the indicators of household environmental health between oil-bearing and non-oil-bearing communities located in the Niger Delta region of Nigeria. Methods: An analytical, cross-sectional household survey was carried out among 601 households in six oil-bearing and non-oil-bearing selected communities located within the Niger Delta region of Nigeria. Multistage sampling was employed, and an interviewer-administered questionnaire used to elicit data on the household environmental health indicators in the communities. The scores across the six indicator domains were summed and categorized into acceptable and unacceptable status.  Results: Water sources in both oil-bearing 230 (76.4%) and non-oil-bearing communities 177 (59.0%) were sanitary. Sanitary sewage 250 (83.1%) and sullage disposal 210 (69.8%) was practiced by most households in oil-bearing areas. The minority of respondents in both oil-bearing 26 (8.6%) and non-oil-bearing 41 (13.7%) communities practiced sanitary refuse disposal. Households in oil-bearing communities had twelve times greater odds of having a satisfactory environmental health status compared to households in non-oil-bearing communities (Adjusted O.R: 11.70, 95% C.I: 7.75-17.65). Conclusion: Households in oil-bearing communities fared better in all household environmental health indicators. There is a need to address the economic and social determinants of health among households in the Niger Delta to improve household environmental health indicators.

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