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Fig. 8. Gobiomorus dormitor (Eleotridae) distributions. Com- mon name: Sand guabine.

Figure 8 Gobiomorus dormitor (Eleotridae) distributions. Com- mon name: Sand guabine.

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A Survey of Freshwater Fish Distribution in Tobago, West Indies
A Survey of Freshwater Fish Distribution in Tobago, West Indies
Seining was done by use of two-person seines (1.0m and 5.0m) of mesh size 0.5cm and additionally by use of a single-person seine (1.0m) with a mesh size of <0.1cm. Cast netting with a 2.0m diameter (1.0cm mesh) was con- ducted. Fish pots (30.0 x 30.0 x 60.0cm, with a mesh size of 0.5cm) were used for overnight trapping at some sites where vegetation and water depth allowed. These methods were not standardised for all sites visited but were adjusted to suit each particular site, depending upon variability of substrate, riparian vegetation, and elevation. In addition, accessibility to sites was considered when transporting and deploying sampling gear. All specimens from sampling efforts were released immediately after identification a the site where collected.
Seining was done by use of two-person seines (1.0m and 5.0m) of mesh size 0.5cm and additionally by use of a single-person seine (1.0m) with a mesh size of <0.1cm. Cast netting with a 2.0m diameter (1.0cm mesh) was con- ducted. Fish pots (30.0 x 30.0 x 60.0cm, with a mesh size of 0.5cm) were used for overnight trapping at some sites where vegetation and water depth allowed. These methods were not standardised for all sites visited but were adjusted to suit each particular site, depending upon variability of substrate, riparian vegetation, and elevation. In addition, accessibility to sites was considered when transporting and deploying sampling gear. All specimens from sampling efforts were released immediately after identification a the site where collected.
Fig. 4. Awaous banana (Gobiidae) distributions. Fig. 3. Anablepsoides hartii (formerly Rivulus hartii) (Rivuli- dae) distributions. Common name: Jumping guabine.
Fig. 4. Awaous banana (Gobiidae) distributions. Fig. 3. Anablepsoides hartii (formerly Rivulus hartii) (Rivuli- dae) distributions. Common name: Jumping guabine.
Fig. 2. Agonostomus monticola (Mugilidae) distributions. Com- mon name: Mountain mullet.
Fig. 2. Agonostomus monticola (Mugilidae) distributions. Com- mon name: Mountain mullet.
Fig. 5. Ctenogobius boleosoma (Gobiidae) distributions.
Fig. 5. Ctenogobius boleosoma (Gobiidae) distributions.
Fig. 6. Sicydium punctatum (Gobiidae) distributions.
Fig. 6. Sicydium punctatum (Gobiidae) distributions.
Fig. 7. Gobiesox nudus (Gobiesocidae) distributions. Common name: Cling fish.
Fig. 7. Gobiesox nudus (Gobiesocidae) distributions. Common name: Cling fish.
Fig. 9. Eleotris pisonis (Eleotridae) distributions. Common name: Sleeper goby. Fig. 10. Synbranchus marmoratus (Gobiesocidae) distribution. Common name: Zangee, Congo/Conga eel; and Anguilla ros- trata (Anguillidae) distributions. Common name: A merican eel.
Fig. 9. Eleotris pisonis (Eleotridae) distributions. Common name: Sleeper goby. Fig. 10. Synbranchus marmoratus (Gobiesocidae) distribution. Common name: Zangee, Congo/Conga eel; and Anguilla ros- trata (Anguillidae) distributions. Common name: A merican eel.
Fig. 11. Poecilia reticulata (Poeciliidae) distributions. Common name: Guppy, Millions fish, Seven colours.
Fig. 11. Poecilia reticulata (Poeciliidae) distributions. Common name: Guppy, Millions fish, Seven colours.
Fig. 12. Micropoecilia picta (Poeciliidae) distributions. Com- mon name: Swamp guppy.
Fig. 12. Micropoecilia picta (Poeciliidae) distributions. Com- mon name: Swamp guppy.
Fig. 13. Oreochromis mossambicus (Cichlidae) distributions. Common name: Mozambique tilapia, Black tilapia.
Fig. 13. Oreochromis mossambicus (Cichlidae) distributions. Common name: Mozambique tilapia, Black tilapia.
Fig. 14. Micropoecilia picta (male) found in proximity to some coastal sites. (Approximately 2.0cm total length). Rare red male morph below. Some recommendations for further work include ex- tensive quantitative sampling using multiple methods and taking into consideration abiotic, biotic, and anthropogenic factors that may contribute to variations in Tobago’s fish assemblages. An area of concern is commercial grave stripping from riverbeds, particularly in northwestern Tobago, where some of the rarer species are found, such as Gobiesox nudus, which is a benthic species. Coasta REFERENCES
Fig. 14. Micropoecilia picta (male) found in proximity to some coastal sites. (Approximately 2.0cm total length). Rare red male morph below. Some recommendations for further work include ex- tensive quantitative sampling using multiple methods and taking into consideration abiotic, biotic, and anthropogenic factors that may contribute to variations in Tobago’s fish assemblages. An area of concern is commercial grave stripping from riverbeds, particularly in northwestern Tobago, where some of the rarer species are found, such as Gobiesox nudus, which is a benthic species. Coasta REFERENCES
Fig. 15. Synbranchus marmoratus found at several inland sites. (Approximately 1.0m total length).
Fig. 15. Synbranchus marmoratus found at several inland sites. (Approximately 1.0m total length).
Related topics:
Freshwater fish taxonomy
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