Quantification of Pfiesteria piscicida growth and encystment parameters using a numerical model

被引:7
作者
Anderson, JT [1 ]
Hood, RR [1 ]
Zhang, X [1 ]
机构
[1] Univ Maryland, Ctr Environm Sci, Horn Point Environm Lab, Cambridge, MD 21613 USA
关键词
Pfiesteria piscicida; harmful algal blooms; numerical models; kleptochloroplastidy; mixotrophy; life history transformations; resting stages;
D O I
10.3354/meps246105
中图分类号
Q14 [生态学(生物生态学)];
学科分类号
071012 ; 0713 ;
摘要
In the past decade, there has been growing interest in understanding the physiological ecology and life cycle of toxic forms of Pfiesteria piscicida. However, transformations among non-inducible (NON-IND; formerly described as nontoxic) stages have received less attention despite the fact that NON-IND stages are found in nature and may be ecologically important as prey and predators. NON-IND stages are also mixotrophic and have the ability to retain and utilize prey chloroplasts in a process termed 'kleptoplastidic mixotrophy'. Quantifying growth, grazing and encystment rates from P. piscicida laboratory experiments is confounded by the interrelationship between mixotrophy and life stage transformations. By fitting a numerical model to a laboratory experiment on NON-IND P. piscicida, we were able to isolate the potential mechanisms that cause encystment and speculate on the interrelationship between adverse conditions (i.e. low light and limiting prey) and life stage transformations. The structure of the laboratory experiment allowed for the estimation of several growth and encystment parameters including grazing rates, gross growth and assimilation efficiencies, as well as the retention time of chloroplasts. Model results suggest a link between encystment and mixotrophic ability. Furthermore, the model results suggest that encystment rates and gross growth and assimilation efficiencies calculated from the model are lower than expected.
引用
收藏
页码:105 / 113
页数:9
相关论文
共 44 条
  • [1] CHRYSOPHYTE POPULATION AND ENCYSTMENT PATTERNS IN 2 CANADIAN LAKES
    AGBETI, MD
    SMOL, JP
    [J]. JOURNAL OF PHYCOLOGY, 1995, 31 (01) : 70 - 78
  • [2] IMPORTANCE OF LIFE-CYCLE EVENTS IN THE POPULATION-DYNAMICS OF GONYAULAX-TAMARENSIS
    ANDERSON, DM
    CHISHOLM, SW
    WATRAS, CJ
    [J]. MARINE BIOLOGY, 1983, 76 (02) : 179 - 189
  • [3] ANDERSON DM, 1985, J PHYCOL, V21, P200
  • [4] Formation of two types of cysts by a mixotrophic dinoflagellate, Pfiesteria piscicida
    Anderson, JT
    Stoecker, DK
    Hood, RR
    [J]. MARINE ECOLOGY PROGRESS SERIES, 2003, 246 : 95 - 104
  • [5] CYST PRODUCTION IN 4 SPECIES OF NERITIC DINOFLAGELLATES
    BLANCO, J
    [J]. JOURNAL OF PLANKTON RESEARCH, 1995, 17 (01) : 165 - 182
  • [6] SPATIAL AND TEMPORAL ASPECTS OF MIXOTROPHY IN CHESAPEAKE BAY DINOFLAGELLATES
    BOCKSTAHLER, KR
    COATS, DW
    [J]. JOURNAL OF EUKARYOTIC MICROBIOLOGY, 1993, 40 (01) : 49 - 60
  • [7] Trophic controls on stage transformations of a toxic ambush-predator dinoflagellate
    Burkholder, JM
    Glasgow, HB
    [J]. JOURNAL OF EUKARYOTIC MICROBIOLOGY, 1997, 44 (03) : 200 - 205
  • [8] Species of the toxic Pfiesteria complex, and the importance of functional type in data interpretation
    Burkholder, JM
    Glasgow, HB
    Deamer-Melia, NJ
    Springer, J
    Parrow, MW
    Zhang, C
    Cancellieri, PJ
    [J]. ENVIRONMENTAL HEALTH PERSPECTIVES, 2001, 109 : 667 - 679
  • [9] FISH KILLS LINKED TO A TOXIC AMBUSH-PREDATOR DINOFLAGELLATE - DISTRIBUTION AND ENVIRONMENTAL-CONDITIONS
    BURKHOLDER, JM
    GLASGOW, HB
    HOBBS, CW
    [J]. MARINE ECOLOGY PROGRESS SERIES, 1995, 124 (1-3) : 43 - 61
  • [10] NEW PHANTOM DINOFLAGELLATE IS THE CAUSATIVE AGENT OF MAJOR ESTUARINE FISH KILLS
    BURKHOLDER, JM
    NOGA, EJ
    HOBBS, CH
    GLASGOW, HB
    [J]. NATURE, 1992, 358 (6385) : 407 - 410