Skip to main content
SpringerLink
Log in

Acute physiological reactions of Calanus pacificus to selected dinoflagellates: direct observations

  • Published:
Marine Biology Aims and scope Submit manuscript

Abstract

Calanus pacificus (Copepoda: Calanoida) females were collected off the California (USA) coast from November 1984–April 1985. A video system was used to observe and record the behavior of restrained individual females presented with a variety of dinoflagellate prey. Two species, Gonyaulax grindleyi and Ptychodiscus brevis, elicited acute physiological reactions. In 40% of the trials (n=10), copepods fed G. grindleyi regurgitated after 45 to 120 min and, in nearly all cases, did not maintain full guts. Copepods in the presence of P. brevis exhibited rapid heart rate and loss of motor control. Scrippsiella trochoidea elicited an intermediate response by C. pacificus. The copepods occasionally displayed mouthpart twitching or failure to maintain gut fullness. Olisthodiscus luteus elicited no unusual behavior in an intermediate temporal range (sec-hours), although the mouthpart movements appeared different than in copepods fed Gyrodinium resplendens (used as control). Placing the copepods in G. resplendens suspension restored normal feeding behavior in all cases.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

Literature cited

  • Alcaraz, M., G.-A. Paffenhöfer and J. R. Strickler: Catching the algae: a first account of visual observations on filter-feeding calanoids. In: The evolution and ecology of zooplankton, pp 241–248. Ed. by W. C. Kerfoot. Hanover: University Press of New England and ASLO 1980

    Google Scholar 

  • Azam, F., T. Fenchel, J. G. Field, L. A. Meyer-Reil and F. Thingstad: The ecological role of water column microbes in the sea. Mar. Ecol. Prog. Ser. 10, 257–263 (1983)

    Google Scholar 

  • Bartram, W.: Experimental development of a model for the feeding of neritic copepods on phytoplankton. J. Plankton Res. 3, 25–51 (1980)

    Google Scholar 

  • Blaxter, J. H.: Experimental rearing of pilchard larvae, Sardina pilchardus. J. mar. biol. Ass. U.K. 49, 557–575 (1969)

    Google Scholar 

  • Chotiyaputta, C. and K. Hirayama: Food selectivity of the rotifer Branchionus plicatilis feeding on phytoplankton. Mar. Biol. 45, 105–111 (1978)

    Google Scholar 

  • Donaghay, P. and L. F. Small: Food selection capabilities of the estuarine copepod A cartia clausi. Mar. Biol. 52, 137–146 (1979)

    Google Scholar 

  • Fernández, F.: Particle selection in the nauplius of Calanus pacificus. J. Plankton Res. 1, 313–328 (1979)

    Google Scholar 

  • Fretter, V. and M. C. Montgomery: The treatment of food by prosobranch veligers. J. mar. biol. Ass. U.K. 48, 499–552 (1968)

    Google Scholar 

  • Frost, B. W.: Feeding behavior of Calanus pacificus in mixtures of food particles. Limnol. Oceanogr. 22, 472–491 (1977)

    Google Scholar 

  • Fuhrman, J. A. and F. Azam: Thymidine incorporation as a measure of heterotrophic bacterioplankton production in marine surface waters: evaluation and field results. Mar. Biol. 66, 109–120 (1982)

    Google Scholar 

  • Huntley, M. E.: Yellow water in La Jolla Bay, California, July 1980. II. Suppression of zooplankton grazing. J. exp. mar. Biol. Ecol. 63, 81–91 (1982)

    Google Scholar 

  • Huntley, M. E., K.-G. Barthel and J. L. Star: Particle rejection by Calanus pacificus: Discrimination between similarly sized particles. Mar. Biol. 74, 151–160 (1983)

    Google Scholar 

  • Huntley, M. and E. R. Brooks: Effects of age and food availability on diel vertical migration behavior of Calanus pacificus. Mar. Biol. 71, 23–31 (1982)

    Google Scholar 

  • Huntley, M. (E.), P. Sykes, V. Marin and S. Rohan: Chemically-mediated rejection of dinoflagellate prey by the copepods Calanus pacificus and Paracalanus parvus: mechanism, occurrence and significance. Mar. Ecol. Prog. Ser. 28, 105–120 (1986)

    Google Scholar 

  • Koehl, M. and J. R. Strickler: Copepod feeding currents: food capture at low Reynolds number. Limnol. Oceanogr. 26, 1062–1073 (1981)

    Google Scholar 

  • Poulet, S. A. and P. Marsot: Chemosensory grazing by marine calanoid copepods (Arthropoda: Crustacea). Science, N.Y. 200, 1403–1405 (1978)

    Google Scholar 

  • Price, H. J. and G.-A. Paffenhöfer: Effects of feeding experience in the copepod Eucalanus pileatus: a cinematographic study. Mar. Biol. 84, 35–40 (1984)

    Google Scholar 

  • Price, H. J. and G.-A. Paffenhöfer: Capture of small cells by the copepod Eucalanus elongatus. Limnol. Oceanogr. 31, 189–194 (1986)

    Google Scholar 

  • Reeve, M. R.: Large cod-end reservoirs as an aid to the live collection of delicate zooplankton. Limnol. Oceanogr. 26, 577–580 (1981)

    Google Scholar 

  • Steidinger, K. A.: A re-evaluation of toxic dinoflagellate biology and ecology. In: Progress in phycological research, Vol. 2. pp 147–188. Ed. by Round and Chapman. New York: Elsevier Science Publishers 1983

    Google Scholar 

  • Tomas, C. R. and E. E. Deason: The influence of grazing by two Acartia species on Olisthodiscus luteus Carter. Mar. Ecol. 2, 215–223 (1981) (Berlin: Paul Parey)

    Google Scholar 

  • Verity, P. G. and D. Stoecker: Effects of Olisthodiscus luteus on the growth and abundance of tintinnids. Mar. Biol. 72, 79–87 (1982)

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Scripps Institution of Oceanography, University of California, A-008, 92093, San Diego, La Jolla, California, USA

    P. F. Sykes & M. E. Huntley

Authors
  1. P. F. Sykes
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. M. E. Huntley
    View author publications

    You can also search for this author in PubMed Google Scholar

Additional information

Communicated by R. S. Carney, Baton Rouge

Rights and permissions

Reprints and permissions

About this article

Cite this article

Sykes, P.F., Huntley, M.E. Acute physiological reactions of Calanus pacificus to selected dinoflagellates: direct observations. Mar. Biol. 94, 19–24 (1987). https://doi.org/10.1007/BF00392895

Download citation

  • Accepted:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00392895

Keywords

Search

Navigation