Rocha, A. M.. Texas A&M University - Corpus Christi,
, . M.. ,

The distribution and abundance of larval fish is directly related to that of the adult fish; therefore, changes in fish stock populations are dependent on the success or failure of the development and production of fish larvae. Narragansett Bay, an estuary, is a nursery and spawning area for a variety of fish species. In the bay, larval fish are subjected to physical changes that affect the development and distribution of the larvae. To detect relationships between the physical conditions and changes in standing stock, the abundance and distribution of fish larvae at the opening of Narragansett, Bay, Rhode Island, were determined for the peak spawning months, June and July of 1998. Ichthyoplankton tows along five transects were completed at deep and shallow depths and during ebb and flood tides. The larvae were identified and larval abundance for each sampled area was determined. The overall abundance of larvae was higher in the shallow water than in the deep water, and more larvae were found on the flood than the ebb tide. In addition, greater diversity of species spawned off shore was detected compared to previous years. Changes in the distribution and abundance suggest physical conditions in Narragansett Bay have changed and are influencing the transport and success of larval fish.
Day: Tuesday, Feb. 2
Time: 04:30 - 04:45pm
Location: Hilton of Santa Fe
Code: CS67TU0430H