| 68 | 69 | 70 | 71 | 72 | 73 | 74 | 75 | 76 | 77 | 78 | 79 | 80 | 81 | 82 | 83 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1. | Major sessions | ||||||||||||||||
| Committee sessions | 1st | 2nd | 3rd | 4th | 5th | 6th | 7th | 8th | |||||||||
| Development sub-committee | 1st | 2nd | 3rd | 4th | 5th | ||||||||||||
| Management sub-committee | 1st | 2nd | 3rd | 4th | 5th | ||||||||||||
| Working group on resources evaluation | 1st | 2nd | 3rd | 4th | 5th | 6th | |||||||||||
| Working group on fishery statistics | 1st | 2nd | |||||||||||||||
| 2. | Important dates in the evolution of the working of the committee | ||||||||||||||||
| Setting up of the management and development sub- committees | x | ||||||||||||||||
| Setting up of the regional project | x | ||||||||||||||||
| Publication of CECAF statistical bulletins | 1st | 2nd | 3rd | ||||||||||||||
| Decentralization of the Secretariat | x | ||||||||||||||||
| 3. | Meetings of the ad hoc working groups on resources | ||||||||||||||||
| Sardinellas central zone | x | x | x | ||||||||||||||
| Shrimp (northern zone) | x | ||||||||||||||||
| Sardines (northern zone) | x | x | x | x | |||||||||||||
| Demersal stocks (central zone) | x | x | |||||||||||||||
| Coastal pelagic species (northern zone) | x | x | x | ||||||||||||||
| Shrimp (southern zone) | x | ||||||||||||||||
| Cephalopods (northern) | x | x | x | ||||||||||||||
| Hake (northern) | x | x | x | x | |||||||||||||
| Sardinellas (southern zone) | x | ||||||||||||||||
| Special meeting on the measurement of fishing effort | X | x | |||||||||||||||
| 4. | Working groups and seminars on the management principles and techniques | ||||||||||||||||
| Working group on the regulatory measures for demersal stocks 1st and last session | 1st | 2nd | |||||||||||||||
| Sub-committee for the implementation of management measures 1st and last session | x | (1st and last session) | |||||||||||||||
| Technical consultation on the management of stocks in the Sahara-Cape Verde zone | x | ||||||||||||||||
| Technical consultation on control and surveillance | x | x | x | ||||||||||||||
| Joint FAO/CIDA/CECAF meeting on the evolution of the Law of the Sea | x | ||||||||||||||||
| Working group on joint ventures | x | ||||||||||||||||
| Small-scale fisheries | x | x | |||||||||||||||
| 5. | Training effort | ||||||||||||||||
| Regional/FAO courses for training in fisheries Sciences (advanced level) | x | x | xx | x | |||||||||||||
| National/FAO courses on fishery statistics (intermediate level) | x | x | x | x | x | ||||||||||||
| Seminars on fisheries development | x | x | |||||||||||||||
| Courses/seminars on the technology of conserving fish products (Dakar) | x | ||||||||||||||||
| Courses on fishing techniques | x | x | |||||||||||||||
| 6. | Events that are marginal to CECAF but having an influence on its work | ||||||||||||||||
| Joint ACRMM/ICES working group on the Resources of the central and southeast Atlantic | x | ||||||||||||||||
| Technical conference in Vancouver | x | ||||||||||||||||
| Control and surveillance in the management of fisheries (Technical Consultation, Rome) | x | ||||||||||||||||
| Various sessions of the Third Conference on the Law of the Sea | 1st | 2nd | 4th& 3rd | 5th | 6th | 7th | 8th | 9th | 10th | 11th | |||||||
| Aberdeen Symposium | x | ||||||||||||||||
| Publication of FAO summaries on the resources of the region (southern zone) | x | ||||||||||||||||
| Publication of FAO summaries on the resources of the region (northern zone) | Publication of FAO summaries on the resources of | x | |||||||||||||||
| CINECA Symposium (Tenerife) | x | ||||||||||||||||
| Sector | Date of Assessments and Conclusions |
|---|---|
| Hake (34.1.1/34.3.1) | Studied in 1968, 69, 70, 71, 72, 73, 75, 76, 78, 80 and 82. Declared intensively fished (1968), fully exploited (1969) with a too small mesh-size (1970) overexploited (1970) proposal for a 700 mm mesh (stretch, 1972) first estimate of potential (1973) revised in 1976 and 1980. Possible occurrence of long-term fluctuations suggested in 1980. Combined analysis for shrimps and hake (1982). Conclusions: To reduce fishing effort, and increase mesh-size. To consider interactions between shrimp and hake. Progress being made. |
| Sparids (34.1.1/34.3.1) | Studied in 1968, 69, 70, 71, 72, 75, 76 and 78. Declared heavily exploited in 1968, overfished with too small mesh-size and proposal for a 90 mm mesh (stretch, 1969) not enforced. Conclusions: Stock considered as seriously damaged. Partly replaced by cephalopods (?). To reduce fishing effort, open the mesh-size and analyze the interactions between sparid and cephalopod exploitation. Little progress up to now. |
| Other Demersal Percomorphs (34.1.1/34.1.1) | Studied in 1971, 74, 77, 79 and 80. Potentials grossly stressed from biomass estimates. Not enough data for a better approach (1971) too small mesh-size (1971) for nearly all species such as Sciaenids, serranids, sparids etc. Potential available for Brachydeuterus (1971). Conclusions: Overfished in terms of yield per recruit north of Cape Verde. Present level of exploitation not known south of Cape Verde. Trawl surveys to be intensified. |
| Cephalopods (34.1.3/34.3.1) | Studied in 1969, 71, 73, 76, 78, 79, 80 and 82. Octopus: Declared intensively fished (1971) fully fished (1973) overfished (1976) stocks of Cape Bojador-Cape Barbas separated from stock of Cape Blanc (1980). Cuttlefish: Fully exploited (1971) overfished (1973). Sparids: Intensively fished (1970) decleared overfished in 1978, insufficient data to confirm this. Conclusions: To manage identified stocks separately. To reduce the overall level of effort. To continue the presently satisfactory regional collaboration. |
| Lobsters (34.1.3/34.3.1) | Studied in 1968 for the first time. Detailed analysis (1979) revised (1980). Gross overfishing for Palinurus mauritanicus (1979), recovering (1980) full exploitation for P. regius(1979). Conclusions: Interactions with cephalopods to analyze. Recovering of the resource to carefully monitor. |
| Shrimps (P. notialis) | Studied in 1971, 77, 79, 80 and 82. Areas concerned - Senegal, Guinea Bissau and Sherbro Division - small resource in Mauritania - first estimates in Senegal and G. Bissau (1971) revised 1977, 78, 79 - stocks intensively to fully exploited. Conclusions: To control effort levels. To take into account the interactions between artisanal and industrial fishing. |
| Sardines (34.1.1/34.1.3) | Studied in 1972, 74, 75, 76, 78, 79, 80 and 82. First estimates in Sector A from Gibraltar to south of Agadir (1974). This Sector is declared fully exploited to overexploited since 1972. First estimates of biomass in 1975. Sector C, from Cape Bojador to Cape Barbos declared fully exploited in 1978. Whole area fully exploited in 1978. Routine estimates of biomass made since 1975 - active regional collaboration. Conclusions: To limit effort in Sector C. To monitor the resources carefully. Risks of instability. |
| Small Coastal Pelagics (34.1.3/34.3.1) | Studied in 1971, 72, 77, 78, 79, 80 and 82. Sardinellas: Need for controlling fishing effort underlined since 1971. First estimates of the potential (1972) declared intensively to fully fished in 1972. Moderately exploited in 1978. Fully exploited again in 1980. Recent estimates of biomass by acoustic surveys but no updated analysis of the state of stock and potential. Senegalese stock affected by long-term oscillation linked with the upwelling (1982). Mackerel: Fully exploited (1971) overfished (1979). No new assessments. Gross overfishing or climatic changes? Horse-mackerel: Declared overfished in 1972. Fully fished in 1979. Intensive to fully fished 1980. Conclusions: Long-term stability to be assessed. Interactions between artisanal and industrial fishery to be analyzed. Effort levels to be monitored. To control and monitor the transfers of effort between target species (and be een fisheries). To continue routine evaluation of biomass by echosurveys. |
| Trumpet Fish (34.1.1) | Studied in 1974, 79 and 81. Potential estimated to be 400,000 tons (1979). Disappearance of the fishable concentrations (1981). |
| Sector | Results | |
|---|---|---|
| Sierra Leone | Stocks studied in 1971, 77, 78, 79 and 80. Demersal Species: Declared overfished since 1962 in the 0–40 m sector. Overexploitation of croakers confirmed in 1971. Shrimp potential estimated in 1977. Fish potential estimated in 1978, 79 and 80. Prospecting by trawler carried out in 1976, 77 and 80. Conclusions: Shrimp intensely to fully exploited. Demersal resources in general: status unknown. Pelagic Species: No assessment of stocks available. | |
| Liberia | Stock studied in 1977, 78, 79 and 81. Demersal Species: First rough estimates on potential in 1979. Prospecting by trawler in 1981. General status of resources unknown. Status of stocks of shrimp and their potential studied together with those of Sierra Leone (Sherbro Sector). Pelagic Species: No estimates. | |
| Ivory Coast | Demersal Species: Stocks studied in 1970, 71, 72, 73, 74, 76, 78, 79, 80, 81 and 82. First estimates on potential made in 1970, revised in 1971, 76, 78 and 82. Stocks declared fully exploited in 1970, overexploited in 1973, fully to intensely exploited in 1976. Recent drop in potential pssibly due to increase in abundance of trigger fish(1982). First estimates of shrimp stocks in 1970. Stocks fully exploited in 1975. Conflict due to the uncontrolled development of the artisanal fishery. Economic collapse of the industrial fleet in 1978–79. Pelagic Species: Studied in 1971, 73, 74, 76, 78, 79 and 80. First estimates of the Sardinella eba resources in 1971. Stock declared overfished in 1971, fully exploited in 1974 and 78. First estimates of the Sardinella aurita resources in 1974. Stock declared fully exploited in 1974 (potential 30,000 tons). New analysis in 1976, declared the stock seriously erfished since 1972. (Collapse). Partial recuperation of stock in 1978. Insufficient data in 1982 for a new analysis. Collapse of bonga lagoon stocks in 1981. Conclusions: Need to analyze the problems raised by the management of unstable pelagic resources exploited by artisanal and industrial fisheries. | |
| First estimates of Brachydeuterus: | 10,000 tons (1973) | |
| First estimates of mackerel: | 40–50,000 tons (1974) | |
| First estimates of anchovy: | 40,000 tons (1974) in Ivory Coast/Ghana | |
| Ghana | Demersal Species: Analyses in 1970, 72, 76 and 79. First estimates of shrimp potential (400 tons) in 1970 (stock vanished). First estimates of demersal potential (10,000 tons) in 1972, stock moderately to fully exploited (1972). Communities of sea bream and coastal communities overfished (1976). Pelagic Species: Common resources of Ivory Coast, Ghana and Togo. See Ivory Coast. | |
| Togo | Demersal Species: Potential roughly estimated in 1974 (1,250 tons), revision carried out in 1978 (300 tons).Present status of resources unknown. Pelagic Resources: See Ivory Coast. | |
| Gulf of Guinea (west) | First estimates of sub-regional potential (52–63,000 tons) in 1971, revised in 1973. Disappearance of the mackerel stock in 1971 (potential 50,000 tons). | |
| Ivory Coast to Benin (inclusive) | Collapse of the sardinellas in 1972. | |
| Nigeria | Demersal Species: First estimates made in 1965, followed by analyses in 1969, 70, 79, 80 and 81. Overexploitation of areas traditionally exploited (1969) confirmed in 1970. Revision of potential 1978, 79 and 80. Fully exploited in 1980. Shrimp: First estimates in 1969, revised in 1979 and 80. Pelagic Species: Limited abundance on the plateau. No data. Delta resources not known. | |
| Cameroon Equatorial Guinea and Gulf of Guinea (centre) | Superficial analyses in 1978 (first estimate of demersal stock) and 1980 (signs of overexploitation of the coastal communities). Acoustic surveys of pelagic species in 1981. | |
| Gabon | Demersal Species: First estimates of shrimp potential in 1972, revised in 1977 and 80 (900 tons, probably underestimated). The demersal stock was estimated in 1978 and 80. It would appear to be moderately exploited (potential: 8–9,000 tons on trawlable grounds and 5,000 tons on non-trawlable ones. Pelagic Species: Stock of sardinellas estimated at 10–20,000 tons, underexploited (1980). | |
| Congo | Assessment work carried out in 1971, 73, 74, 78, 79, 80 and 81. Demersal Species: First analyses made in 1971. Overexploitation of the croakers. Complete analysis of problems connected to mesh-size (1974). First estimates of overall potential in 1978, revised in 1980 and 81. Stock declared overexploited in 1978–79. Conclusions: Overexploitation brought about by the progressive reduction of accessible zones (new Law of the Sea) and overconcentration of the available ships (1982). Pelagic Species: Big potential available. Potential of sardinellas assessed at 15–20,000 tons (1980). To be managed in cooperation with Angola. | |
