Sediment distribution patterns on the Galicia-Minho continental shelf

Dias, João Alveirinho; González, Ramón; Garcia, Catarina; Díaz‐del‐Río, V.

doi:10.1016/s0079-6611(02)00007-1

Cited by 98 publications

(73 citation statements)

References 13 publications

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“…Moreover, grain size was relatively smaller at Station I11 than at Stations I and 11, indicating that sediment at Station I11 was more easily resuspended. The poor sorting of sediment grain size at Station 111 (2.0) also indicated frequent resuspension of the sediment as reported in previous studies (Dias et al 2002, Christiansen et al 1993, Brassard and Morris 1997.…”

Section: Resuz=ts and Discussionsupporting

confidence: 80%

Attenuation of Photosynthetically Available Radiation by Chlorophyll, Chromophoric Dissolved Organic Matter, and Tripton in Lake Donghu, China

Yang¹,

Xie²,

Xing³

et al. 2005

Journal of Freshwater Ecology

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Section: Resuz=ts and Discussionsupporting

confidence: 80%

Attenuation of Photosynthetically Available Radiation by Chlorophyll, Chromophoric Dissolved Organic Matter, and Tripton in Lake Donghu, China

Yang¹,

Xie²,

Xing³

et al. 2005

Journal of Freshwater Ecology

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“…Desroy et al 2011). No data on sediments were collected in the present study, but it could be logically assumed that the greater intensity of precipitations in winter (Dias et al 2002) might cause a larger input of terrigenous sediments on the shore. This input might have caused favourable conditions for the development of larger covers of encrusting S. alveolata in winter than in summer.…”

Section: Discussionmentioning

confidence: 69%

“…trampling) disturbances, which can damage the existing bioconstructions and reduce the density of new recruits (Dubois et al 2002(Dubois et al , 2006. On the studied shore, mechanical impacts from waves and trampling have clear seasonal patterns related to the occurrence of extreme storms, mostly in winter (Dias et al 2002) and human frequentation of the shore, which is particularly intense in summer (Araújo et al 2009). As extreme waves could directly cause seasonal differences in the abundance of S. alveolata that are opposite to the present patterns and trampling might drastically affect intertidal assemblages on emergent rock rather than in rock pools, both mechanisms are unlikely to provide convincing explanations to our findings.…”

Section: Discussionmentioning

confidence: 99%

Benthic assemblages of rock pools in northern Portugal: seasonal and between-pool variability

Bertocci¹,

Araújo²,

Incera³

et al. 2011

Sci. Mar.

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SUMMARY:We investigated the seasonal (winter vs summer and within season) and spatial (between-pool) variability of benthic assemblages of rock pools at mid-intertidal level along the shore of Viana do Castelo (North Portugal). Physical traits of rock pools, including size, depth and position along the shore, were also compared between pools. While pools did not differ for any of the examined physical traits, results indicated a clear seasonal difference in the structure of assemblages, including a total of 49 macroalgal and 13 animal taxa. This finding was driven by six taxa that are more abundant in winter (the reefforming polychaete Sabellaria alveolata, the articulated coralline algae Corallina spp., the brown alga Bifurcaria bifurcata, the encrusting coralline alga Lithophyllum incrustans, the red alga Chondracanthus acicularis and the grazing snails Gibbula spp.) and four algal taxa that are more abundant in summer (the invasive brown Sargassum muticum, the green Ulva spp., the kelp Laminaria ochroleuca and the filamentous red Ceramium spp.). These data provide a new contribution to the knowledge of rock pool systems and have potential implications for monitoring programmes aimed at assessing ecological modifications related to natural and anthropogenic disturbances and for identifying processes responsible for the variability of rock pool assemblages.Keywords: rock pools, rocky intertidal, seasonal variability, benthos, Sabellaria alveolata, Portugal. RESUMEN: Comunidades bentónicas de charcas rocosas del norte de Portugal: variabilidad estacional y entre charcas. -Investigamos la variabilidad estacional (invierno vs verano y entre estaciones) y espacial (entre charcas) de las comunidades bentónicas en charcas rocosas del nivel intermareal medio a lo largo de la costa de Viana do Castelo (Norte de Portugal). Además comparamos los parámetros físicos entre las charcas, incluyendo el tamaño, temperatura y posición a lo largo de la costa. Mientras que las charcas no difieren para ninguno de los parámetros físicos examinados, los resultados indican una clara diferencia estacional en la estructura de las comunidades, las cuales incluyen un total de 49 taxones de algas y 13 de animales. Estos resultados fueron inducidos por seis taxones más abundantes en invierno (el poliqueto formador de arrecifes Sabellaria alveolata, el alga coralinal articulada Corallina spp., el alga parda Bifurcaria bifurcata, el alga coralinal incrustante Litophyllum incrustans, el alga roja Chondracanthus acicularis y los caracoles ramoneadores Gibbula spp.) y cuatro taxones de algas más abundantes en verano (el alga parda invasiva Sargassum muticum, el alga verde Ulva spp., el quelpo Laminaria ochroleuca y el alga roja filamentosa Ceramium spp.). Estos datos contribuyen al conocimiento de las comunidades de charcas rocosas intermareales y tienen potenciales implicaciones en los programas de monitorización enfocados a medir las modificaciones ecológicas relacionadas con alteraciones naturales y antropogénicas y son útiles para identifica...

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“…1c): two shores at the open coast (out of both rías), two shores at the outer part of both rías and two shores at the inner part of the Ría de Vigo showing salinity values similar to those in fully marine environments. The open shore sites are exposed to wave height from NW of about 3 m, with maximum values of around 7 m from SW during storms (Dias et al 2002). In the outer part of the ría, swell is normally from NW and wave height decreased from 1.6 m in the outer part of the ria to 0.6 m in the inner part of the ría (Bernabeu et al 2012).…”

Section: Quantitative Sampling For Comparisons Among Shores With Diffmentioning

confidence: 99%

The gastropod Phorcus sauciatus (Koch, 1845) along the north-west Iberian Peninsula: filling historical gaps

et al. 2014

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The intertidal gastropod Phorcus sauciatus is a subtropical grazer that reaches its northern boundary in the Iberian Peninsula. Distribution of P. sauciatus along the Iberian Peninsula shows, however, gaps in its distribution. The present study was aimed at detecting possible recent changes on the population structure and distribution of P. sauciatus along the north-west Atlantic coast of the Iberian Peninsula. To achieve this aim, we adopted a qualitative sampling design to explore the presence of P. sauciatus along a region within its historical gap of distribution (north Portuguese coast). In addition, a quantitative sampling design was adopted to test hypotheses about the abundance and size structure of P. sauciatus populations among regions with different historical records of its abundance and among shores with different exposure. Results showed that P. sauciatus was present along the north Portuguese coast. However, the abundance and size structure of the newly settled populations were significantly different to those of the historically recorded populations. Moreover, P. sauciatus was able to establish populations at sheltered shores. Considering these results, we propose models for the distribution of P. sauciatus along the Iberian Peninsula, based on effects of sea surface temperature, and to explain the size-frequency of their populations based on their density.

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Sediment distribution patterns on the Galicia-Minho continental shelf

Cited by 98 publications

References 13 publications

Attenuation of Photosynthetically Available Radiation by Chlorophyll, Chromophoric Dissolved Organic Matter, and Tripton in Lake Donghu, China

Attenuation of Photosynthetically Available Radiation by Chlorophyll, Chromophoric Dissolved Organic Matter, and Tripton in Lake Donghu, China

Benthic assemblages of rock pools in northern Portugal: seasonal and between-pool variability

The gastropod Phorcus sauciatus (Koch, 1845) along the north-west Iberian Peninsula: filling historical gaps

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