Abundance and biogeography of tintinnids (Ciliophora) and associated microzooplankton in the Southwestern Atlantic Ocean

Thompson, G.H.B.; Alder, V.A.; Boltovskoy, Demetrio; Brandini, Frederico Pereira

doi:10.1093/plankt/21.7.1265

Cited by 59 publications

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“…C. antarctica forma typica and A. norvegica forma typica within the SZ, and C. gaussi and C. convallaria within the AZ have shown persistence and high densities and biomasses in comparison to the other taxa found in both zones during the 2 years covered by this study. This information is also in agreement with that obtained previously (Alder 1995, Fernandes 1999, Alder & Thompson 2000, Thompson 2001. So, and according to the concept of Modigh & Castaldo (2002), the above-mentioned taxa may be considered key tintinnid species for their corresponding zones, and, thus, they can be used to track changes in environmental and hydrographical settings in the oceanic SZ and AZ.…”

Section: The Subantarctic Zone and Antarctic Zonesupporting

confidence: 91%

“…Tintinnids (loricate ciliates ranging in size from 15-20 to 200-300 µm) play different significant ecological roles within microbial communities (Pierce & Turner 1992, 1994, and have been described as useful tools in biogeographic studies and as indicators of hydrological circulation (Taniguchi 1983, Zeitzschel 1990, Pierce & Turner 1993, Alder & Thompson 2000, Thompson 2001). Most studies on tintinnid assemblages, however, have been performed in coastal locations and were focused on their fluctuations (species composition, abundance) at seasonal scales in relation to environmental factors, such as food availability, mesozooplankton grazing pressure and physico-chemical variables (Abboud-Abi Saab 1989, Kamiyama & Tsujino 1996, Godhantaraman 2002, Modigh & Castaldo 2002, Urrutxurtu 2004).…”

Section: Introductionmentioning

confidence: 99%

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Patterns in tintinnid species composition and abundance in relation to hydrological conditions of the southwestern Atlantic during austral spring

Thompson¹,

Alder²

2005

Aquat. Microb. Ecol.

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The tintinnid community was assessed on a collection of 42 samples taken at depths of 5, 10, 25 and 50 m from 17 oceanographic stations located along 34 to 62°S, 51 to 57°W, in November 1995. Samples were collected by means of a Niskin bottle cast, and reverse-filtered through a 10 µm mesh filter. A total of 60 tintinnid taxa were recorded, most of which with a distribution circumscribed to Antarctic, Subantarctic or Brazil-Malvinas Confluence waters, thus allowing the distinction of Antarctic, Subantarctic and Transitional biogeographic zones, respectively. A comparison based on the analysis of Niskin bottle versus flowmetered 35 µm mesh net paired samples indicated that absolute abundances of tintinnid species with diameters > 40 µm almost did not differ between collecting methods. Tintinnid abundances and species structure reflected the degree of variability in the hydrological conditions of the southwestern Atlantic between 1994 and 1995. Sea surface temperature fluctuations within Brazil-Malvinas Confluence waters involved pronounced changes in the tintinnid communities of the Transition Zone: the increase of southward warm water transport during 1994 favoured the dominance of subtropical species along the ecotone, while its decrease during 1995 favoured the contribution of subantarctic species. Low hydrological variability in the Subantarctic and Antarctic Zones was reflected in a quite similar tintinnid community structure during these 2 years. Acanthostomella norvegica forma typica and Cymatocylis antarctica forma typica in the Subantarctic Zone, and Codonellopsis gaussi and Cymatocylis convallaria in the Antarctic Zone, might be regarded as key tintinnid species, based on their persistence and dominance.

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Section: The Subantarctic Zone and Antarctic Zonesupporting

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Patterns in tintinnid species composition and abundance in relation to hydrological conditions of the southwestern Atlantic during austral spring

Thompson¹,

Alder²

2005

Aquat. Microb. Ecol.

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“…A maximum abundance of 35 ind l -1 of total tintinnids in the central area of the South Adriatic was noted in September 1993, using the plankton trap "Adriatic" at 50 m depths (Kršinić, unpublished data). Tintinnid concentrations in open Mediterranean waters are generally 25 ind l -1 (Dolan, 2000), and in the south-western Atlantic Ocean the concentrations only average about 11 ind l -1 with a maximum of 59 ind l -1 (Thompson et al, 1999). In the North Aegean, the dominant species Codonella galea exceeds 30 ind l -1 at the surface, but in the South Aegean, tintinnids showed a very low abundance (Pitta and Giannakourou, 2000).…”

Section: Discussionmentioning

confidence: 97%

“…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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“…(Balech 1958, 1962, 1971, Souto 1970a, Balech & Souto 1980, 1981, Sassi e Melo 1986, 1993, Thompson et al 1999.…”

Section: Introductionmentioning

confidence: 99%

Estrutura da comunidade dos Tintinnina na região do Atol das Rocas (Rio Grande do Norte) e Arquipélago de Fernando de Noronha (Pernambuco)

2008

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Os Tintinnina que ocorrem em águas próximas ao Atol das Rocas e Arquipélago de Fernando de Noronha (Nordeste do Brasil) foram estudados usando amostras de plâncton coletadas entre 13 e 30 de março de 1999 em 27 estações oceânicas. O estudo procurou caracterizar a distribuição espacial desses ciliados na área e examinar parâmetros como a diversidade e eqüitabilidade que definem a estrutura da comunidade. O material foi coletado por arrastos verticais desde 200 m de profundidade até a superfície, usando uma rede de plâncton de 20 µm de abertura de malhas, preservado em formol neutro a 4%, e examinado em um microscópio invertido. A maior densidade de indivíduos foi encontrada na estação 26 (122 ind.m-3), situada nas proximidades de Fernando de Noronha; mas altas densidades também foram registradas nas estações 1 (82,7 ind.m-3) e 2 (74,7 ind.m-3), situadas em áreas mais distantes, bem como na estação 5 (80,7 ind.m-3) próxima do Atol das Rocas. Eutintinnus fraknoi (Daday) Kofoid & Campbell, 1929 foi a espécie mais abundante, atingindo 57,8% de dominância na estação 4. O índice de diversidade específica variou de alto (27% das amostras com valores maiores que 3 bits.ind-1) a médio (63% das amostras com valores maiores que 2 bits.ind-1), enquanto a eqüitabilidade variou entre 0,6 e 1,0. As baixas densidades de Tintinnina observadas no material coletado confirmam a condição oligotrófica daquela região.

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Abundance and biogeography of tintinnids (Ciliophora) and associated microzooplankton in the Southwestern Atlantic Ocean

Cited by 59 publications

References 0 publications

Patterns in tintinnid species composition and abundance in relation to hydrological conditions of the southwestern Atlantic during austral spring

Patterns in tintinnid species composition and abundance in relation to hydrological conditions of the southwestern Atlantic during austral spring

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

Estrutura da comunidade dos Tintinnina na região do Atol das Rocas (Rio Grande do Norte) e Arquipélago de Fernando de Noronha (Pernambuco)

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