A continuous, underway fish egg sampler

David M. Checkley, Peter B. Ortner, Lawrence R. Settle, Shailer R. Cummings

Research output: Contribution to journalArticle

113 Citations (Scopus)

Abstract

We describe a method to sample the highly contagious distribution of pelagic fish eggs. CUFES, the continuous, underway fish egg sampler, consists of a submersible pump, concentrator, electronics and sample collector. This system operates continuously and under nearly all sea conditions, providing a real-time estimate of the volumetric abundance of pelagic fish eggs at pump depth, usually 3 m. CUFES-derived estimates of volumetric abundance agree well with those from nets towed at pump depth and with areal abundance estimated from vertically integrated plankton tows. CUFFS has been used successfully to sample the eggs of menhaden, pinfish, sardine, and anchovy off the coasts of the eastern and western United States and South Africa. Two large patches of eggs of the Atlantic menhaden were sampled off North Carolina in winter 1993-94, had a linear scale of 5-10 km, and were found in waters between the Gulf Stream and mid-shelf front. Spawning location may be related to bathymetry. CUFFS is now being used to estimate spawner biomass by the daily egg production method. An optical plankton counter provided accurate estimates of the number of Atlantic menhaden eggs sample by CUFES.

Original languageEnglish
Pages (from-to)58-73
Number of pages16
JournalFisheries Oceanography
Volume6
Issue number2
StatePublished - Jan 1 1997

Fingerprint

fish eggs
fish roe
samplers
sampler
Brevoortia tyrannus
egg
pelagic fish
fish
pumps
plankton
pump
submersible pumps
menhaden
Gulf Stream
sampling
Eastern United States
Western United States
anchovies
sardines
collectors

Keywords

  • Brevoortia tyrannus
  • Engraulis mordax
  • Gulf Stream
  • Optical plankton counter
  • Pelagic fish eggs
  • Sampling
  • Sardinops sagax
  • Spawning

ASJC Scopus subject areas

  • Aquatic Science
  • Oceanography

Cite this

Checkley, D. M., Ortner, P. B., Settle, L. R., & Cummings, S. R. (1997). A continuous, underway fish egg sampler. Fisheries Oceanography, 6(2), 58-73.

A continuous, underway fish egg sampler. / Checkley, David M.; Ortner, Peter B.; Settle, Lawrence R.; Cummings, Shailer R.

In: Fisheries Oceanography, Vol. 6, No. 2, 01.01.1997, p. 58-73.

Research output: Contribution to journalArticle

Checkley, DM, Ortner, PB, Settle, LR & Cummings, SR 1997, 'A continuous, underway fish egg sampler', Fisheries Oceanography, vol. 6, no. 2, pp. 58-73.
Checkley DM, Ortner PB, Settle LR, Cummings SR. A continuous, underway fish egg sampler. Fisheries Oceanography. 1997 Jan 1;6(2):58-73.
Checkley, David M. ; Ortner, Peter B. ; Settle, Lawrence R. ; Cummings, Shailer R. / A continuous, underway fish egg sampler. In: Fisheries Oceanography. 1997 ; Vol. 6, No. 2. pp. 58-73.
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