1. Defining a spawning population (spotted seatrout Cynoscion nebulosus) over temporal, spatial, and demographic scales.
- Author
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Lowerre-Barbieri, Susan K., Henderson, Nathan, Llopiz, Joel, Walters, Sarah, Bickford, Joel, and Muller, Robert
- Subjects
SPOTTED seatrout ,SPAWNING ,FISH reproduction -- Regulation ,SEXUAL behavior in fishes ,REPRODUCTION -- Environmental aspects ,HISTOLOGY ,INLETS ,SPATIAL ecology ,ESTUARINE ecology - Abstract
The article presents a study which assesses the role of temporal, spatial and demographic factors in fish spawning population such as the Cynoscion nebulosus. The method includes the employment of a spatially and temporally explicit sampling design utilizing experimental gill nets, hook and line to collect spotted seatrout Cynoscion in the lower portion of Tampa Bay, Florida. Ovarian analysis and behavior observation during afternoon and evening were also undertaken to assess the histological and behavioral aspect of spawning mechanism. It shows that the inlet portion of the sampling site exemplifies abundant spawners as compared to those at the estuarine. Meanwhile, it notes the difficult assessment for the spawning frequency in the context of temporal and spatial interaction.
- Published
- 2009
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