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Criteria for Identifying Species of Concern
Nassau Grouper
- Abundance and Productivity
- Magnitude of Decline:
- combination of recent rate of decline and historical extent of decline
- Natural Rarity:
- species known only from a few specimens or that occurs rarely and in small numbers
- Endemism:
- species or population that is native to a particular place and is only found there
- Distribution
- Population Connectivity:
- level of reproductive exchange is among related populations
- Limited Geographic Range:
- found only in a limited area
- Endemism:
- species or population that is native to a particular place and is only found there
- Life-History Characteristics
- Vulnerable Life-History Strategies:
- e.g., low fecundity, late age at maturity, slow growth rates
- Resilience to Environmental Variability and Catastrophes
- Loss of Unique Life-History Characteristics
- Threats
- Extraction:
- permanently removes the species from its habitat
- Habitat Degradation and Loss:
- destruction, modification, or loss to a species' habitat that could result in a lower carrying capacity
- Disease and Predation:
- can influence the abundance and productivity of a species or population
- Other Natural or Man-Made Factors for Decline:
- includes ocean conditions and poor hatchery practices
For
additional information on this subject contact the Southeast Regional Office at: (727-824-5312)
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