Occurrence of doliolids and salps during 1958, 1959, and 1960 off the São Paulo coast

Tavares, Débora Reis

doi:10.1590/s0373-55241967000100007

Cited by 13 publications

(8 citation statements)

References 11 publications

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“…It is also worth to mention that the processes determining the occurrence and spatial distribution of salps and other thaliaceans are barely known, even if Tavares (1967), Bonecker (1983 and Katsuragawa et al (1993) have provided important preliminary results. The negative influence of salp aggregations on non-gelatinous plankton, as suggested in those works, may be related to the direct competition for algal food or to production of toxic substances by salps (Folt and Goldman 1981), but such cause-effect relationship has not been established in Brazilian waters so far.…”

Section: Descriptive Studies -Zooplankton Composition Abundance and mentioning

confidence: 99%

Marine zooplankton studies in Brazil: a brief evaluation and perspectives

Lopes

2007

An. Acad. Bras. Ciênc.

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Marine zooplankton research in Brazil has been primarily descriptive, with most studies focusing on community structure analysis and related issues. The composition and spatial distribution of several taxonomic groups are currently well known, although less-abundant and small-sized taxa as well as initial stages of almost all species have received little attention. Some numerically important taxa such as heterotrophic protists, ctenophores, acoel turbellarians and ostracods remain virtually unstudied. Large sectors of the continental shelf have not been sampled in detail, particularly those areas influenced by the North Brazil Current (5 • N-15 • S). Zooplankton abundance and biomass in offshore waters have seldom been quantified, and information on the distribution and vertical migration of meso-and bathypelagic species are lacking. Additional faunistic assessments must target those less-studied taxa and geographical locations. However, priority in ecological studies should be given to process-oriented investigations aimed at understanding the mechanisms controlling zooplankton distribution, trophic interactions within pelagic food webs and production cycles in relation to the physical environment. An effort should be made to incorporate state-of-the-art sampling technology and analytical methods into future research projects.

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Section: Descriptive Studies -Zooplankton Composition Abundance and mentioning

confidence: 99%

Marine zooplankton studies in Brazil: a brief evaluation and perspectives

Lopes

2007

An. Acad. Bras. Ciênc.

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“…Station I oH Cananéia nearest to the coast showed a slight reduction in number of species and the occurrence of species from the genus FritilIaria was sporadic. Certain influences of the waters of the lagunar region of Cananéia may probably occur at this station (TAVARES, 1967). The three stations situated oH Santos, showed no diHerence in specific composition of its Appendicularia fauna.…”

Section: B) Relative Abundance Of the Speciesmentioning

confidence: 79%

On the seasonal occurrence of appendicularians in waters off the coast of São Paulo state

Tundisi

1970

Bol. Inst. Oceanogr.

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Studies were made on the seasonal variation and qualitative composition of the Appendicularia population from a limited area of the South Atlantic 25º09.5'S to 24º04.0'S latitude and 47º48.4'W to 46º00.4'W longitude at the São Paulo State coast off Cananéia and off Santos. The pattern of the seasonal variation was irregular for the most important species (O. longicauda). Some qualitative differences regarding the species composition are discussed.

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“…The organisms of each subsample were identified (mainly following Esnal, 1999;Esnal & Daponte, 1999a, 1999b and counted. The type of zooid was identified by differentiating oozoids (asexual solitary zooids) and blastozooids (hermaphrodite aggregated zooids) based on the number and arrangement of the body muscle bands, the position and form of the digestive tract and the shape of the tunic (Tavares, 1967). For Doliolidade, only unidentified rigid transparent tunics were recorded.…”

Section: Methodsmentioning

confidence: 99%

Thaliacean community responses to distinct thermohaline and circulation patterns in the Western Tropical South Atlantic Ocean

et al. 2022

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hypothesis that species distribution and abundance are structured by the circulation and thermohaline features. For that purpose, we used data collected though 40 mm mesopelagic trawls above the slope and around oceanic seamounts and islands. Results reveal distinct patterns in the thaliacean community structure. Over the continental slope, under the influence of the strong North Brazilian Undercurrent, Pyrosoma atlanticum was highly abundant. Soestia zonaria was also present but in a lesser amount. Offshore, around oceanic islands and Seamounts under the influence of the central branch of South Equatorial Current, Doliolida spp. were the dominant thaliacean, co-occurring with P. atlanticum in lower abundance. Mesh selectivity is a potential drawback in these results since the coarse aperture may have lost smaller species and early life stages.

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Occurrence of doliolids and salps during 1958, 1959, and 1960 off the São Paulo coast

Cited by 13 publications

References 11 publications

Marine zooplankton studies in Brazil: a brief evaluation and perspectives

Marine zooplankton studies in Brazil: a brief evaluation and perspectives

On the seasonal occurrence of appendicularians in waters off the coast of São Paulo state

Thaliacean community responses to distinct thermohaline and circulation patterns in the Western Tropical South Atlantic Ocean

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