Skip to main content

Free Content Recruitment of Larval Fishes into a North Carolina Estuary during a Bloom of the Red Tide Dinoflagellate, Gymnodinium breve

Download Article:
(PDF 99.3046875 kb)
An unprecedented bloom of the toxic dinoflagellate Gymnodinium breve in coastal waters of North Carolina occurred during year three (fall–winter 1987–1988) of an eight-year larval fish study. This event was the basis for examining the possible effects of red tide on the estuarine recruitment of nine species of larval fishes. Densities of larvae for 1987–1988 were compared to their corresponding average densities for the two seasons prior to and five seasons after the red tide. Larval fish recruitment for most species over the entire 1987–1988 season was not unusually low, although two of nine species did exhibit their 8-yr minima during this time. Densities for 1987–1988 were compared with the densities averaged (by week) over the other 7 yrs and revealed three general patterns of response. Two species, Paralichthys albigutta (gulf flounder) and Citharichthys spilopterus (bay whiff) had consistently low densities throughout their normal period of recruitment, suggesting that their estuarine recruitment may have been impacted by the effects of G. breve even after the bloom ended. In contrast, Micropogonias undulatus (Atlantic croaker) and Lagodon rhomboides (pinfish) densities were generally normal, or above normal, both during the bloom and for the remainder of the larval recruitment season. Five other species (Brevoortia tyrannus, Atlantic menhaden; Paralichthys lethostigma, southern flounder; Leiostomus xanthurus, spot; Mugil cephalus, striped mullet; Myrophis punctatus, speckled worm eel) had low densities during the bloom, but increased markedly later in the season. This pattern suggested these five species suffered immediate effects when the red tide was extant, but had high recruitment success later in the season. In the first post-red tide year, six of the nine species had their highest mean catches over the first 14 wks of all 8 yrs and suggested a possible post-red tide beneficial effect on larval fish estuarine recruitment.

17 References.

No Supplementary Data.
No Article Media
No Metrics

Document Type: Research Article

Publication date: 1998-07-01

More about this publication?
  • The Bulletin of Marine Science is dedicated to the dissemination of high quality research from the world's oceans. All aspects of marine science are treated by the Bulletin of Marine Science, including papers in marine biology, biological oceanography, fisheries, marine affairs, applied marine physics, marine geology and geophysics, marine and atmospheric chemistry, and meteorology and physical oceanography.
  • Editorial Board
  • Information for Authors
  • Subscribe to this Title
  • Terms & Conditions
  • Ingenta Connect is not responsible for the content or availability of external websites
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more