Global diversity of sponges (Porifera: Spongillina) in freshwater

Manconi, Renata; Pronzato, Roberto

doi:10.1007/s10750-007-9000-x

Cited by 108 publications

(69 citation statements)

References 12 publications

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“…A WPD search produced 257 accepted species, whereas only 219 are acknowledged in [118], the most recent overview of the freshwater sponges. Spongillina are distributed over all continents except Antarctica, and show high endemism with the exception of a few widespread species such as Spongilla lacustris and Ephydatia fluviatilis .…”

Section: Resultsmentioning

confidence: 99%

Global Diversity of Sponges (Porifera)

et al. 2012

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With the completion of a single unified classification, the Systema Porifera (SP) and subsequent development of an online species database, the World Porifera Database (WPD), we are now equipped to provide a first comprehensive picture of the global biodiversity of the Porifera. An introductory overview of the four classes of the Porifera is followed by a description of the structure of our main source of data for this paper, the WPD. From this we extracted numbers of all ‘known’ sponges to date: the number of valid Recent sponges is established at 8,553, with the vast majority, 83%, belonging to the class Demospongiae. We also mapped for the first time the species richness of a comprehensive set of marine ecoregions of the world, data also extracted from the WPD. Perhaps not surprisingly, these distributions appear to show a strong bias towards collection and taxonomy efforts. Only when species richness is accumulated into large marine realms does a pattern emerge that is also recognized in many other marine animal groups: high numbers in tropical regions, lesser numbers in the colder parts of the world oceans. Preliminary similarity analysis of a matrix of species and marine ecoregions extracted from the WPD failed to yield a consistent hierarchical pattern of ecoregions into marine provinces. Global sponge diversity information is mostly generated in regional projects and resources: results obtained demonstrate that regional approaches to analytical biogeography are at present more likely to achieve insights into the biogeographic history of sponges than a global perspective, which appears currently too ambitious. We also review information on invasive sponges that might well have some influence on distribution patterns of the future.

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Section: Resultsmentioning

confidence: 99%

Global Diversity of Sponges (Porifera)

et al. 2012

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“…Six species have been recorded from the Northern Hemisphere, while only three species are known from the Southern Hemisphere (Manconi and Pronzato 2008). Due to the large variability in gemmulosclere morphology (Poirrier 1974), there is a lack of agreement regarding both the number of Ephydatia species in existence today and the range of variability within individual species.…”

Section: Discussionmentioning

confidence: 99%

The sponge genus Ephydatia from the high-latitude middle Eocene: environmental and evolutionary significance

Pisera

Manconi

Siver

et al. 2016

PalZ

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The freshwater sponge species Ephydatia cf. facunda Weltner, 1895 (Spongillida, Spongillidae) is reported for the first time as a fossil from middle Eocene lake sediments of the Giraffe kimberlite maar in northern Canada. The sponge is represented by birotule gemmuloscleres as well as oxea megascleres. Today, E. facunda inhabits warm-water bodies, so its presence in the Giraffe locality provides evidence of a warm climate at high latitudes during the middle Eocene. The morphological similarity of the birotules to modern conspecific forms suggests protracted morphological stasis, comparable to that reported for other siliceous microfossils from the same locality.

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“…De hecho, no hay ninguna especie incluida en la normativa europea (Directiva de Hábitats, D43/92/CEE) ni española (Catálogo Español de Especies Amenazadas, RD139/2011), ni tampoco en los libros rojos. Por el momento el estatus de conservación de este grupo no ha sido abordado y su conservación queda bajo la protección genérica de especies con las que la conviven como los peces y los anfibios (Manconi & Pronzato, 2008). Esta circunstancia ha propiciado un cierto olvido en cuanto a su estudio, y también una cierta tendencia a menospreciar cuantitativamente la importancia relativa en el funcionamiento de los ecosistemas acuáticos de estas especies filtradoras que pueden llegar a ocupar grandes superficies sumergidas (Dröscher & Waringer, 2007).…”

Section: Discussionunclassified

Nuevos registros con notas ecológicas y taxonómicas de esponjas dulceacuícolas (Porifera, Spongillidae) en la cuenca del Duero

Morales¹,

Negro²

2015

GRAELLSIA

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RESUMENEl trabajo supone la primera contribución al conocimiento ibérico de las esponjas de agua dulce (Porifera, Demospongiae, Spongillidae) en la cuenca del Duero. Se encontraron ejemplares en 24 (+) de 32 transectos, repartidos en 16 estaciones de muestreo. El estudio se desarrolló en 6 subcuencas fluviales de la meseta norte y fueron obtenidos datos sobre su ecología y distribución en 25 tramos fluviales vadeables (20+/5−) y en 7 humedales profundos (4+/3−). Se localizaron ejemplares vivos durante las épocas de estiaje y se identificaron mediante la observación al microscopio de las espículas silíceas cuatro especies: Ephydatia fluviatilis, E. muelleri, Heteromeyenia baileyi y Spongilla lacustris. La máxima riqueza de especies se presentó en el curso medio del río Negro, donde se hallaron tres especies en simpatría. E. muelleri fue localizada por primera vez en la cuenca del Duero en un tramo del río Aliste. H. baileyi mostró preferencia por aguas someras y corrientes, y únicamente se localizó sobre rocas duras (cuarzitas). S. lacustris y E. fluviatilis fueron localizadas tanto sobre sedimentos compactados, rocas o maderas sumergidas y en un amplio rango de profundidades. E. fluviatilis no se localizó en lagunas de alta montaña, siendo una especie habitual en ríos. H. baileyi y S. lacustris mostraron preferencia por ríos de aguas ácidas y baja mineralización; mientras que ambas especies de Ephydatia se hallaron en aguas algo mineralizadas. Se discute la influencia de estos parámetros ambientales en la distribución encontrada y su presencia en sintopía con otros invertebrados indicadores de condiciones de oligotrofia, acidez y elevada oxigenación.Palabras clave: ecología; distribución; ríos y lagunas; esponjas; cuenca Duero. ABSTRACT New records of freshwater sponges (Porifera, Spongillidae) from Douro River basin, with ecological and taxonomic notesThis work is a contribution to the knowledge of freshwater sponges (Porifera, Demospongiae, Spongillidae) of the Douro River watershed. Specimens were found in 24 of 32 transects in 16 sampling stations. Distribution and several ecological data were obtained in 25 wadeable river transects (20+/5−) and 7 deep lakes (4+/3−) of six sub-basins of the northern Iberian plateau. Four species (Ephydatia fluviatilis, E. muelleri, Heteromeyenia baileyi and Spongilla lacustris) were recorded throughout the survey during successive dry sessions and classified by microscopic observation of siliceous sclera. The maximum species richness was found in the Negro River, where sympatric coexistence was detected in three species. E. muelleri was only found in the Aliste River, and it is the first record of this species in the Douro basin. H. baileyi showed a preference for shallow areas in flowing waters, and was only present on hard stony substrates (quartzites). S. lacustris and E. fluviatilis were found on compacted sediments, rocks and submerged wood substrates, and in a wide interval of depths. E. fluviatilis was absent in mountain lakes, whereas it was the most frequent species...

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Global diversity of sponges (Porifera: Spongillina) in freshwater

Cited by 108 publications

References 12 publications

Global Diversity of Sponges (Porifera)

Global Diversity of Sponges (Porifera)

The sponge genus Ephydatia from the high-latitude middle Eocene: environmental and evolutionary significance

Nuevos registros con notas ecológicas y taxonómicas de esponjas dulceacuícolas (Porifera, Spongillidae) en la cuenca del Duero

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