Fishing and Farming at Lake Chad: Overcapitalisation, Opportunities and Fisheries Management

Sarch, M. T.

doi:10.1006/jema.1996.0080

Cited by 11 publications

(15 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, since 1973 the resource has been unevenly distributed in a Small Chad state, with strong inter annual variations and high vulnerability in the northern pool though it remained fairly stable in the southern pool of the lake. Up to now, local access to the resources has been governed mostly through traditional rules and hierarchy that have been efficient in preventing conflicts (Sarch, 1996(Sarch, , 2001Béné et al, 2003).…”

Section: Discussion: a Case Study For Transboundary Inter Basin Transfermentioning

confidence: 99%

“…Since this time, this northern pool of the lake has been occasionally and partially inundated. The drought episodes over the region and the lake recession have profoundly modified the natural resources in the basin and around the lake (Kolawole, 1988;Sarch, 1996Sarch, , 2001. More recently, insufficiently documented analyses of satellite data have been used to illustrate a supposed disappearing Lake Chad (Coe and Foley, 2001;NASA, 2010), an idea that has persisted in part because of the lack of published ground observations.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Recent changes in Lake Chad: Observations, simulations and management options (1973–2011)

Lemoalle

Bader

Leblanc

et al. 2012

Global and Planetary Change

111

View full text Add to dashboard Cite

Section: Discussion: a Case Study For Transboundary Inter Basin Transfermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Recent changes in Lake Chad: Observations, simulations and management options (1973–2011)

Lemoalle

Bader

Leblanc

et al. 2012

Global and Planetary Change

111

View full text Add to dashboard Cite

“…Moreover, floodplain inhabitants typically practice a wide range of livelihood activities in addition to fishing, largely dictated by the same cyclical patterns of precipitation and inundation. As a consequence, labour bottlenecks can occur during certain times of the year, where individuals divide their time between fishing, farming, livestock, and off-farm labour (Adams, 1992, see also examples described by Sarch, 1996;Sarch and Birkett, 2000;Shorr, 2000 andWinklerprins, 2003).…”

Section: Variable Productivitymentioning

confidence: 99%

Market-resource Links and Fish Vendor Livelihoods in the Upper Zambezi River Floodplains

Abbott

Campbell

Hay³

et al. 2007

Hum Ecol

View full text Add to dashboard Cite

This paper examines small-scale fish vending in a southern African floodplain from two perspectives: as a link between natural resource use and consumption, and as a livelihood in itself. We used a combination of observation, surveys and semistructured interviews in a market in Katima Mulilo, Namibia, to determine sources of fish, preferences and constraints to vending, average investment and profit, as well different routes into fish vending and perceptions regarding vending. Most vendors come from fishing households, but their stock is often an accumulation of purchases from other fishers. There is little evidence of formal arrangements between fishers and vendors, yet most adapt to the highly variable natural and social environments of the region. Although all vendors ranked selling fish as their most important livelihood activity, a wide range of investment and profit exists among individuals. Our findings indicate that fisheries management proposed for the area must be developed with a careful understanding of how changes in access and use will affect vending livelihoods.

show abstract

“…Few studies have investigated the recent variations of its two basins individually [2,20]. The drought episodes in the region have profoundly modified the natural resources in the basin and around the lake [21][22][23], and a re-evaluation of Lake Chad's water resources is necessary. Since the lake's separation into two individual parts during [1973][1974][1975], open water has persisted only in the southern basin, mostly near the Chari delta [2].…”

Section: Introductionmentioning

confidence: 99%

Monitoring Recent Fluctuations of the Southern Pool of Lake Chad Using Multiple Remote Sensing Data: Implications for Water Balance Analysis

2017

View full text Add to dashboard Cite

Abstract:The drought episodes in the second half of the 20th century have profoundly modified the state of Lake Chad and investigation of its variations is necessary under the new circumstances. Multiple remote sensing observations were used in this paper to study its variation in the recent 25 years. Unlike previous studies, only the southern pool of Lake Chad (SPLC) was selected as our study area, because it is the only permanent open water area after the serious lake recession in [1973][1974][1975]. Four satellite altimetry products were used for water level retrieval and 904 Landsat TM/ETM+ images were used for lake surface area extraction. Based on the water level (L) and surface area (A) retrieved (with coinciding dates), linear regression method was used to retrieve the SPLC's L-A curve, which was then integrated to estimate water volume variations (∆V). The results show that the SPLC has been in a relatively stable phase, with a slight increasing trend from 1992 to 2016. On annual average scale, the increase rate of water level, surface area and water volume is 0.5 cm year −1 , 0.14 km 2 year −1 and 0.007 km 3 year −1 , respectively. As for the intra-annual variations of the SPLC, the seasonal variation amplitude of water level, lake area and water volume is 1.38 m, 38.08 km 2 and 2.00 km 3 , respectively. The scatterplots between precipitation and ∆V indicate that there is a time lag of about one to two months in the response of water volume variations to precipitation, which makes it possible for us to predict ∆V. The water balance of the SPLC is significantly different from that of the entire Lake Chad. While evaporation accounts for 96% of the lake's total water losses, only 16% of the SPLC's losses are consumed by evaporation, with the other 84% offset by outflow.

show abstract

Fishing and Farming at Lake Chad: Overcapitalisation, Opportunities and Fisheries Management

Cited by 11 publications

References 11 publications

Recent changes in Lake Chad: Observations, simulations and management options (1973–2011)

Recent changes in Lake Chad: Observations, simulations and management options (1973–2011)

Market-resource Links and Fish Vendor Livelihoods in the Upper Zambezi River Floodplains

Monitoring Recent Fluctuations of the Southern Pool of Lake Chad Using Multiple Remote Sensing Data: Implications for Water Balance Analysis

Contact Info

Product

Resources

About