|
Fact Sheet Title Fact Sheet |
| |
Fourwing flyingfish - Eastern Caribbean |
Fourwing flyingfish in the eastern Caribbean (Barbados, Dominica, Tobago, Grenada, Saint Lucia, Saint Vincent and the Grenadines) |
| Data Ownership | This document provided, maintained and owned by Food and Agriculture Organization (FAO) , is part of WECAFC Stock Status Reports data collection. |
|
ident Block | ident Block | | Species List: | Species Ref: en - Fourwing flyingfish, fr - Exocet hirondelle, es - Volador golondrina |
|
|
| ident Block Fourwing flyingfish - Eastern Caribbean Map tips - Click on to turn layers on and off
- Double-click to zoom in
- Drag to pan
- Hold down the shift key and drag to zoom to a particular region
Exclusive Economic Zone Areas (EEZ) |
---|
BRB | Barbados |
---|
DMA | Dominica |
---|
TTO | Trinidad and Tobago |
---|
GRD | Grenada |
---|
LCA | Saint Lucia |
---|
VCT | Saint Vincent/Grenadines |
---|
|
|
|
|
|
Aq Res | Biological Stock: Yes Value: Sub-Regional Reference year: 2007 |
Considered a management unit: An aquatic resource or fishery is declared as [Fishery] Management Unit if it is effectively the focus for the application of selected management methods and measures, within the broader framework of a management system. According to the FAO Glossary for Responsible Fishing, "a Fishery Management Unit (FMU) is a fishery or a portion of a fishery identified in a Fishery Management Plan (FMP) relevant to the FMP's management objectives." FMU's may be organised around fisheries biological, geographic, economic, technical, social or ecological dimensions , and the makeup and attribute of a fishery management unit depends mainly on the FMP's management objectives. |
Jurisdictional distribution: Jurisdictional qualifier (e.g. "shared", "shared - highly migratory") of the aquatic resource related with its spatial distribution. |
Environmental group: Classification of the aquatic resource according to the environmental group (e.g. pelagic invertebrate, or demersal fish) to which the species belong. |
Reference Year: The Reference Year is the last year considered in the stock assessment and/or fishery status. |
| | | | Aq Res State Trend The 90 percent confidence interval for B/BMSY and F/FMSY exclude 1.0, indicating that there is only a very small chance that the stock was being overexploited in 2007. The stock assessment suggests that the stock is not overfished and that overfishing is not occurring. The catch rates have remained stable overall in the time series as catches have increased. Given the potential stock area, and estimates of a relatively large stock size from tagging and survey estimates, it is likely that the potential yield exceeds total catches taken throughout the history of the fishery. Habitat Bio Climatic Zone: Tropical. Vertical Dist: Pelagic. Geo Dist Geo Dist: Unspecified Water Area Overview Spatial Scale: Sub-Regional Water Area Overview | Water Area Overview Fourwing flyingfish - Eastern Caribbean
Exclusive Economic Zone Areas (EEZ) | BRB: Barbados | DMA: Dominica | TTO: Trinidad and Tobago | GRD: Grenada | LCA: Saint Lucia | VCT: Saint Vincent/Grenadines |
| | | | Water Area Overview |
Water Area OverviewFourwing flyingfish - Eastern Caribbean Aq Res Struct Biological Stock: Yes Bio Assess The stock assessment model chosen to represent the dynamics was the Beverton and Holt model. As this is an annual species, and the catches and catch per unit effort index refers to the stock when it is actually spawning, it is believed that a simple stock recruitment relationship would capture the species dynamics from year to year. A different model might be developed for within-year dynamics, but data are not sufficient to support this. Data Total catches were compiled from Barbados, Dominica, Grenada, Saint Lucia, Saint Vincent, and Tobago. These catches were considered by the working group to be the best estimates available, but were probably not highly accurate. In particular, catches used for bait are poorly recorded and the working group spent considerable time estimating these. It is likely that bait could be a significant use of this resource. Catch and effort data were available from Barbados, Tobago and Saint Lucia. These data were combined into a single standardized index of abundance using a generalized linear model. While it is thought that catch per unit effort should be linearly related to stock size, this could not be verified at the meeting. Assess Models Type: Biomass-aggregated Beverton and Holt stock recruitment model Results The model and assessment have not been fully tested. No sensitivity analyses were carried out. The model appears to fit the data reasonably well and the population behaves as expected. However, further development of this model is required, including rigorous testing to ensure the management advice is sound. Sci Advice There is no immediate action required by management to conserve the stock, unless there is a significant increase in catches. A catch trigger point of 5000 tonnes should be established when action may be taken to ensure the stock does not become overfished. The trigger point defines when further management action should be undertaken. The maximum recorded catch has been 4700 tonnes. The assessment indicates that any fisheries development exceeding 5 000 tonnes would have unpredictable consequences. Among the actions that should be taken if catches rise to, or above, the trigger point, are a freeze on further fishery development until a full scientific reassessment of the stock has been completed. An improved stock assessment may lead to further international fishing controls. The most significant uncertainty in the current assessment stems from the poor data available on catches and effort. Improved data collection and monitoring is required to ensure sustainable use of this and other fishery resources. Sources FAO Western Central Atlantic Fishery Commission. Report of the Third Meeting of the WECAFC Ad Hoc Flyingfish Working Group of the Eastern Caribbean. Mount Irvine, Tobago, 21–25 July 2008. FAO Fisheries and Aquaculture Report. No. 929. Rome, FAO. 2010. 88p. http://www.fao.org/docrep/013/i1602e/i1602e00.pdf Bibliography All references to figures, tables and bibliography in the text are found within the source of information. |
|
| |
|