First record of Branchiura sowerbyi Beddard, 1892 (Oligochaeta: Tubificidae) in Azores

Raposeiro, Pedro M.; Ramos, João; Costa, Ana C.

doi:10.3391/ai.2009.4.3.8

Cited by 12 publications

(10 citation statements)

References 14 publications

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“…Branchiura predominated all through the year at a site close to the mouth of the Guareí River into the Paranapanema River and was associated with the water temperature. According to Raposeiro et al (2009), this species is thermophilic and lives at sites deficient in oxygen, such as stagnant water, with low depth and renewal (Brinkhurst & Jamieson, 1971). These characteristics are representative of the sites where they predominated.…”

Section: Discussionmentioning

confidence: 99%

Is similar the distribution of Chironomidae (Diptera) and Oligochaeta (Annelida, Clitellata) in a river and a lateral fluvial area?

Cesar

Henry

2017

Acta Limnol. Bras.

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Numerous factors may affect the pattern of distribution of benthic fauna in a river mouth region and, among the macroinvertebrates, Chironomidae and Oligochaeta are the most abundant groups and most tolerant to environmental changes. Aim: The aim of this study was to evaluate the controlling factors of and a possible similarity between Chironomidae and Oligochaeta assemblies at two close sites, the mouth of the Guareí River into the Paranapanema River (São Paulo, Brazil) and its lateral fluvial area. Methods: Fauna samples were collected every three months during one year. Water physical and chemical variables and sediment variables were also determined in the same period. Results: Both assemblies presented low density variability over time in the lateral area due to sediment characteristics and environmental factors. Taxa Caladomyia, Parachironomus, Pristina sp., Pristina osborni, Bothrioneurum and Opistocysta funiculus were recorded at this site. The Guareí River presented both greater temporal and spatial variations, attributed mainly to a reduction in the water level. Greater organism abundance, especially of Chironomus and Tubificinae, was observed in the river. Conclusions: Dissimilarity in temporal and spatial distributions of Chironomidae and Oligochaeta was attributed to peculiar characteristics of the two study sites, a river channel and a lateral area. Reduction in the water level over the year was the main controlling factor of Chironomidae and Oligochaeta richness and density in the river. In the lateral area, the presence and abundance of certain taxa were determined by the nature of the sediment and water physical and chemical variables.Keywords: mouth zone; water level; sediment; macroinvertebrates.Resumo: Diversos fatores podem afetar o padrão de distribuição da fauna bentônica em regiões de desembocadura de rios e, entre os macroinvertebrados, Chironomidae e Oligochaeta são os grupos mais abundantes e tolerantes às alterações ambientais. Objetivo: O objetivo deste estudo foi avaliar a possível similaridade e os fatores controladores entre as assembleias de Chironomidae e Oligochaeta em dois locais próximos, a zona de desembocadura do rio Guareí no rio Paranapanema (SP, Brasil) e sua área fluvial lateral. Métodos: As amostras de fauna foram coletadas a cada três meses durante um ano. As variáveis físico-químicas da água e sedimento também foram determinadas no mesmo período. Resultados: Ambas as assembleias apresentaram baixa variabilidade temporal nas densidades na área lateral devido às características do sedimento e dos fatores ambientais. Caladomyia, Parachironomus, Pristina sp., Pristina osborni, Bothrioneurum e Opistocysta funiculus foram registradas neste local. O rio This is an Open

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Section: Discussionmentioning

confidence: 99%

Is similar the distribution of Chironomidae (Diptera) and Oligochaeta (Annelida, Clitellata) in a river and a lateral fluvial area?

Cesar

Henry

2017

Acta Limnol. Bras.

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“…A study performed in Lake Baikal showed that food availability was a limiting factor for Oligochaeta distribution in deep regions of the lake (Martin et al, 1999 (Real and Prat, 1992;Martin, 1996;Bonomi and Pasteris, 2006;Dornfeld et al, 2006) since they present adaptations allowing them to survive in less favourable conditions. Gills and respiratory appendages allow some species to survive in environments where oxygen is limited (Martin, 1996;Raposeiro et al, 2009). An example is the tubificid B. sowerbyi and the naidid D.…”

Section: Discussionmentioning

confidence: 99%

Effect of trophic status and sediment particle size on diversity and abundance of aquatic Oligochaeta (Annelida) in neotropical reservoirs

Moretto¹,

Simões²,

Benedito³

et al. 2013

Ann. Limnol. - Int. J. Lim.

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-The influence of the sediment grain size and the trophic status of the reservoirs on the composition, richness and biomass of Oligochaeta community was tested. Samples were taken from the littoral and profundal zones of 30 neotropical reservoirs from six different watersheds during two hydrological periods (dry and rainy seasons). The sample units were ordinated, with principal component analyses, according to differences in the sediment grain size, sample depth and dissolved oxygen. The results of a multiple response permutation procedure (MRPP) analysis revealed significant differences in species composition between littoral and profundal zones, trophic status (oligotrophic, mesotrophic and eutrophic) and different watersheds. The environment-species relationship was tested using redundancy analyses. In order to test which environmental variables, either granulometric or limnological, influenced the Oligochaeta community variability we used a partitioning procedure of inertia. Local variations, including reservoir zone and trophic status, were primarily influenced by differences in sediment type and depth. Significant differences in the total biomass between zones, trophic status, watershed and hydrological period were also demonstrated by a KruskalWallis or Mann-Whitney test. The most prevalent taxa were the cosmopolitan tubificids Bothrioneurum sp. and Branchiura sowerbyi, and the naidids Dero (Dero) digitata and Pristina breviseta, which are dependent on periphyton for food. Higher biomass values were recorded in mesotrophic reservoirs, due to increased nutrient availability and adequate dissolved oxygen supply. Our results indicate that the Oligochaete community structure is directly influenced by local environmental variation in neotropical reservoirs; and that the sediment grain size is the most important factor in determining the Oligochaete community structure.

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“…Branchiura sowerbyi is a cosmopolitan species and prefers lentic or slowly flowing warm waters, being originally from the tropical regions of Asia (Timm, 1980;Paunović et al, 2005;Raposeiro et al, 2009). This thermophilous tubificid is considered an invasive species and it is currently found in many countries in Europe (http://www.faunaeur.org).…”

Section: Discussionmentioning

confidence: 99%

The tubificids (Annelida, Oligochaeta) of Lake Trasimeno and Lake Piediluco in Central Italy, with a study of SEM morphology of some species

Goretti¹,

Marcucci²,

Veroli³

et al. 2014

Turk J Zool

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First record of Branchiura sowerbyi Beddard, 1892 (Oligochaeta: Tubificidae) in Azores

Abstract: The kelp Undaria pinnatifida (Harvey) Suringar (Laminariales, Phaeophyceae), a native of Japan, northern China, and Korea, is

Cited by 12 publications

References 14 publications

Is similar the distribution of Chironomidae (Diptera) and Oligochaeta (Annelida, Clitellata) in a river and a lateral fluvial area?

Is similar the distribution of Chironomidae (Diptera) and Oligochaeta (Annelida, Clitellata) in a river and a lateral fluvial area?

Effect of trophic status and sediment particle size on diversity and abundance of aquatic Oligochaeta (Annelida) in neotropical reservoirs

The tubificids (Annelida, Oligochaeta) of Lake Trasimeno and Lake Piediluco in Central Italy, with a study of SEM morphology of some species

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