Global biogeography of marine tintinnids

Pierce, RW; Turner, JT

doi:10.3354/meps094011

Cited by 143 publications

(104 citation statements)

References 20 publications

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“…Tintinnids are an important component of the planktonic microprotozoan community in most marine environments (Landry and Hasset, 1982;Verity, 1987;Pierce and Turner, 1993;Cordeiro et al, 1997;Tillmann, 2004), and they can be important occasionally in estuarine waters (Sanders, 1987;Barría de Cao, 1992;Dolan and Gallegos, 2001;Urrutxurtu, 2004). In the São Sebastião Channel (São Paulo) under estuarine influence, tintinnids represented the most abundant group of the microzooplankton community (Eskinazi-Sant'Anna and Björnberg, 2006).…”

Section: Discussionmentioning

confidence: 99%

Zooplankton community dynamics in relation to the seasonal cycle and nutrient inputs in an urban tropical estuary in Brazil

et al. 2008

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Micro-and mesozooplankton were studied in the Sergipe estuary, northeastern Brazil, in order to assess the temporal variability in abundance and biodiversity under stressed conditions (urban pollution). Zooplankton samples and abiotic data were collected at one station during a full tidal cycle in July 2001 and in February 2002, corresponding to the rainy and dry seasons, respectively. The salinity regime was euhaline-polyhaline. Phosphate and dissolved oxygen were higher in July 2001, and nitrite, nitrate and ammonia in February 2002. Chlorophyll-a concentrations were low as a result of light limitation, with 1.18 ± 0.88 µg.m -3 in February and 1.53 ± 1.48 µg.m -3 in July. Fifty-nine zooplankton taxa were identified. Microzooplankton were abundant, mainly the tintinnid Favella ehrenbergii, and ranged from 18,649 ind.m -3 in July to 678,009 ind.m -3 in February. Mesozooplankton ranged from 1,537 ind.m -3 in July to 37,062 ind.m -3 in February and were dominated by barnacle nauplii in July and by copepods in February. The cluster analysis by taxa revealed the existence of three distinct groups: resilient species, characteristic of estuarine areas and occurring during all the year; species mainly more abundant in July (indicators of a healthier environmental condition); and species more abundant in February (tolerant to poor water quality). em fevereiro e foi dominado por náuplios de Cirripedia em julho e por Copepoda em fevereiro. A análise de agrupamento por taxa revelou a existência de três grupos: espécies resilientes, características de áreas estuarinas de ocorrência contínua; espécies que dominaram em julho (indicadores de uma melhor condição ambiental); e espécies mais abundantes em fevereiro (tolerantes à baixa qualidade da água). KeywordsPalavras-chave: zooplâncton, estuário tropical, variação sazonal, nordeste do Brasil. Araujo, HMP. et al. 752

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Section: Discussionmentioning

confidence: 99%

Zooplankton community dynamics in relation to the seasonal cycle and nutrient inputs in an urban tropical estuary in Brazil

et al. 2008

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“…Station 3 had a high abundance of tintinnid ciliates. This is not surprising, for this station is just north of the Aleutian Island archipelago, and tintinnids are primarily a coastal microzooplankton group (Beers et al, 1980;Capriulo and Carpenter, 1983;Pierce and Turner, 1993). Fig.…”

Section: Microzooplankton Abundance and Biomassmentioning

confidence: 99%

Phytoplankton growth, microzooplankton herbivory and community structure in the southeast Bering Sea: insight into the formation and temporal persistence of an Emiliania huxleyi bloom

Olson

Strom

2002

Deep Sea Research Part II: Topical Studies in Oceanography

143

108

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Using the seawater dilution technique, we measured phytoplankton growth and microzooplankton grazing rates within and outside of the 1999 Bering Sea coccolithophorid bloom. We found that reduced microzooplankton grazing mortality is a key component in the formation and temporal persistence of the Emiliania huxleyi bloom that continues to proliferate in the southeast Bering Sea. Total chlorophyll a (Chl a) at the study sites ranged from 0.40 to 4.45 mg C l À1 . Highest phytoplankton biomass was found within the bloom, which was a mixed assemblage of diatoms and E. huxleyi. Here, 75% of the Chl a came from cells >10 mm and was attributed primarily to the high abundance of the diatom Nitzschia spp. Nutrient-enhanced total phytoplankton growth rates averaged 0.53 d À1 across all experimental stations. Average growth rates for >10 mm and o10 mm cells were nearly equal, while microzooplankton grazing varied among stations and size fractions. Grazing on phytoplankton cells >10 mm ranged from 0.19 to 1.14 d À1 . Grazing on cells o10 mm ranged from 0.02 to 1.07 d À1 , and was significantly higher at non-bloom (avg. 0.71 d À1 ) than at bloom (avg. 0.14 d À1 ) stations. Averaged across all stations, grazing by microzooplankton accounted for 110% and 81% of phytoplankton growth for >10 and o10 mm cells, respectively. These findings contradict the paradigm that microzooplankton are constrained to diets of nanophytoplankton and strongly suggests that their grazing capability extends beyond boundaries assumed by size-based models. Dinoflagellates and oligotrich ciliates dominated the microzooplankton community. Estimates of abundance and biomass for microzooplankton >10 mm were higher than previously reported for the region, ranging from 22,000 to 227,430 cells l À1 and 18 to 164 mg C l À1 . Highest abundance and biomass occurred in the bloom and corresponded with increased abundance of the large ciliate Laboea, and the heterotrophic dinoflagellates Protoperidinium and Gyrodinium spp. Despite low grazing rates on phytoplankton o10 mm within the bloom, the abundance and biomass of small microzooplankton (o20 mm) capable of grazing E. huxleyi was relatively high at bloom stations. This body of evidence, coupled with observed high grazing rates on large phytoplankton cells, suggests the phytoplankton community composition was strongly regulated by herbivorous activity of microzooplankton. Because grazing behavior deviated from size-based model predictions and was not proportional to microzooplankton biomass, alternate mechanisms that dictate levels of grazing activity were in effect in the southeastern Bering Sea. We hypothesize that these mechanisms included morphological or chemical signaling between phytoplankton and micrograzers, which led to selective grazing pressure. r

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“…Recent authors have reported aspects of their global distribution (Pierce and Turner, 1993), in the North Sea (Cordeiro et al, 1997), south-western Atlantic (Thompson et al, 1999), and the Mediterranean Sea (Dolan et al, 1999;Dolan, 2000;Pitta and Giannakourou, 2000;Pitta et al, 2001;Modigh et al, 2003).…”

Section: Introductionmentioning

confidence: 99%

Horizontal distribution of tintinnids in the open waters of the South Adriatic (Eastern Mediterranean)

Kršinić

Grbec

2006

Sci. Mar.

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Global biogeography of marine tintinnids

Cited by 143 publications

References 20 publications

Zooplankton community dynamics in relation to the seasonal cycle and nutrient inputs in an urban tropical estuary in Brazil

Zooplankton community dynamics in relation to the seasonal cycle and nutrient inputs in an urban tropical estuary in Brazil

Phytoplankton growth, microzooplankton herbivory and community structure in the southeast Bering Sea: insight into the formation and temporal persistence of an Emiliania huxleyi bloom

Horizontal distribution of tintinnids in the open waters of the South Adriatic (Eastern Mediterranean)

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