Papers by Maria Teresa Moita
Estuarine Coastal and Shelf Science, Apr 1, 2010
A study of the mesoscale distribution of phytoplankton communities observed along the Portuguese ... more A study of the mesoscale distribution of phytoplankton communities observed along the Portuguese upwelling coast in 1985–1986 made it possible to identify an assemblage composed by the coccolithophores Helicosphaera carteri, Syracosphaera pulchra and Coronosphaera mediterranea. The assemblage was consistently present in the coast in the following years (1991, 1992, 1994, 2003 and 2005) and from 1992 onwards, Rhabdosphaera clavigera was
Water, Dec 8, 2020
The Water Framework Directive (WFD) aims at evaluating the ecological status of European coastal ... more The Water Framework Directive (WFD) aims at evaluating the ecological status of European coastal water bodies (CWBs). This is a rather complex task and first requires the use of long-term databases to assess the effect of anthropogenic pressure on biological communities. An in situ dataset was assembled using concomitant biological, i.e., chlorophyll a (Chl a) and environmental data, covering the years from 1995 to 2014, to enable a comprehensive assessment of eutrophication in the Western Iberia Coast (WIC). Given the temporal gaps in the dataset, especially in terms of Chl a, satellite observations were used to complement it. Positive relationships between Chl a 90th percentile and nitrogen concentrations were obtained. The Land-Uses Simplified Index (LUSI), as a pressure indicator, showed no relationship with Chl a, except in Galicia, but it highlighted a higher continental pressure in the Portuguese CWBs in comparison with Galician waters. In general terms, the trophic index (TRIX) showed that none of the CWBs were in degraded conditions. Nevertheless, the relatively high TRIX and LUSI values obtained for the water body in front of Tagus estuary suggest that this area should be subject to continued monitoring. Results highlighted the usefulness of satellite data in water quality assessments and set the background levels for the implementation of operational monitoring based on satellite Chl a. In the future, low uncertainty and harmonized satellite products across countries should be provided. Moreover, the assessment of satellite-based eutrophication indicators should also include metrics on phytoplankton phenology and community structure.
Journal of Sea Research, 2021
Let C 0 [a, b] denote the space of continuous functions x on [α, b] such that x(a) = 0. Recently ... more Let C 0 [a, b] denote the space of continuous functions x on [α, b] such that x(a) = 0. Recently Cameron and Storvick defined an operator-valued Feynman integral J q (F) of functionals F on Co[a, b]. Let F(x) = f(x(ti), , x(t n)) where a = to < tί < < t n = b. The present authors earlier established the existence of J g (F) for functionals F as above under the assumption that / is factorable and bounded. In the present paper it is shown that with the f actorability assumption completely removed, J-i(F) may fail to exist even with / required to be in L p (R n) for 1 ^ p ^ °o. On the other hand it is shown that J q {F) does exist under the rather surprising condition that /e 1,21...i2 where L21...12 is the set of all complex-valued measurable functions / on R n (n ^ 2) such that H/H21..12 = 11/11 < 00 where l/2 η2 Yl/2 du 2-d \d\ 11/11-{ G oo \ I f(u lf •••,!*») \ 2 duΛ Another positive result shows that if F is an analytic function of a finite sum of factorable functions, then J g (F) exists.
Hydrobiologia, Apr 24, 2013
To investigate whether phytoplankton is the main factor determining mesozooplankton distribution ... more To investigate whether phytoplankton is the main factor determining mesozooplankton distribution in a continental shelf affected by upwelling, oceanographic surveys were conducted off NW Portugal in 2002 and 2003. During four different seasons, we investigated how the mesoscale relationship between these two communities was forced by environmental conditions across the shelf. The horizontal and vertical distribution of phytoplankton was shaped by wind stress over the water. Diatoms dominated mixed and upwelled waters, whereas dinoflagellates prevailed with thermal stratification. Mesozooplankton was less influenced by wind forcing and concentrated mostly at mid-shelf, on the outer margin of main phytoplankton patches. We found that this pattern, under strong thermal stratification conditions, can be associated with localized grazing ''hot spots''. Copepods were dominant, contributing to the mesozooplankton community variability between cruises whereas phytoplankton presented a clearer seasonal pattern. Nevertheless, the distribution and abundance of mesozooplankton were directly correlated with all phytoplankton groups at the inner-midshelf, while no correlation was observed offshore the outer-shelf. The relative composition of mesozooplankton did not vary between depth strata, whereas a cross-shelf separation occurred between nearshore and widespread clusters of species. This reflected a dependence on phytoplankton and reflected the high variability of oceanographic conditions of the study area.
Acta Oecologica-international Journal of Ecology, May 1, 2003
The composition and the distribution patterns of phytoplankton were studied during the early stag... more The composition and the distribution patterns of phytoplankton were studied during the early stages of an upwelling event in Lisbon Bay, in September 1999. The distribution of chlorophyll a and phytoplankton assemblages was asymmetric about the upwelling centre, with the highest abundance of chlorophyll a observed at the inner (coastal) side of the plume. The diatom Cylindrotheca closterium dominated in the upwelling core and the chain forming diatom Proboscia alata dominated at the outer side of the feature within mature oceanic waters. Chain forming dinoflagellates such as Alexandrium affıne and the toxin producer Gymnodinium catenatum were most numerous at the inshore side of the upwelling front. These patterns were compared with the distribution of G. catenatum observed in the same area in 1985 and 1994, under conditions of fully developed upwelling when chlorophyll a and G. catenatum maxima were observed extending southwards on the inshore side of an upwelling plume. Different hydrodynamic conditions at each side of upwelling plumes associated with pronounced Capes are evoked to explain the asymmetry on the phytoplankton patterns.
PLOS ONE, May 4, 2017
From June 2004 to December 2007, samples were weekly collected at a fixed station located at the ... more From June 2004 to December 2007, samples were weekly collected at a fixed station located at the mouth of Ria de Aveiro (West Iberian Margin). We examined the seasonal and inter-annual fluctuations in composition and community structure of the phytoplankton in relation to the main environmental drivers and assessed the influence of the oceanographic regime, namely changes in frequency and intensity of upwelling events, over the dynamics of the phytoplankton assemblage. The samples were consistently handled and a final subset of 136 OTUs (taxa with relative abundance > 0.01%) was subsequently submitted to various multivariate analyses. The phytoplankton assemblage showed significant changes at all temporal scales but with an overriding importance of seasonality over longer-(inter-annual) or shorter-term fluctuations (upwelling-related). Sea-surface temperature, salinity and maximum upwelling index were retrieved as the main driver of seasonal change. Seasonal signal was most evident in the fluctuations of chlorophyll a concentration and in the high turnover from the winter to spring phytoplankton assemblage. The seasonal cycle of production and succession was disturbed by upwelling events known to disrupt thermal stratification and induce changes in the phytoplankton assemblage. Our results indicate that both the frequency and intensity of physical forcing were important drivers of such variability, but the outcome in terms of species composition was highly dependent on the available local pool of species and the timing of those events in relation to the seasonal cycle. We conclude that duration, frequency and intensity of upwelling events, which vary seasonally and inter-annually, are paramount for maintaining long-term phytoplankton diversity likely by allowing unstable coexistence and incorporating species turnover at different scales. Our results contribute to the understanding of the complex mechanisms of coastal phytoplankton dynamics in relation to changing physical forcing which is fundamental to improve predictability of future prospects under climate change.
Estuarine Coastal and Shelf Science, Sep 1, 2012
ABSTRACT a b s t r a c t The Atlantic western coast of Portugal includes several shallow coastal ... more ABSTRACT a b s t r a c t The Atlantic western coast of Portugal includes several shallow coastal lagoons, such as Óbidos, Albufeira and Santo André, that are intermittently closed to the ocean by sand barriers. Their physicoechemical characteristics, as well as their residence time and tidal influence, are highly dependent on the open/ closed periods and on the inter-annual raining/dry season&#39;s variability with important impacts on the phytoplankton community structure, abundance and dynamics. Furthermore, the number of coastal ecosystems with identified eutrophication symptoms is increasing worldwide due to the increasing anthropogenic pressures. Eutrophication is one of the greatest threats to water quality in coastal lagoons and a major concern for the European water quality regulators. One of the first symptoms of eutrophi-cation is enhanced algal biomass. Thus, phytoplankton is generally one of the most important biological indicator of these processes. In this study, all available phytoplankton (chlorophyll and taxa blooms) and nutrient data from a period of more than 50 years were gathered. During the periods of closure, these lagoons have favoring conditions for phytoplankton growth, which can reach high levels of chlorophyll a (chl a, 290 mg L À1), as observed in Óbidos lagoon during the 80&#39;s. At that time, during the open periods, the highest chl a concentration registered was about one fifth lower (64 mg L À1). At present, this lagoon is artificially maintained open during almost all the time and the highest observed chl a concentration was 7 mg L À1 . Comparatively, the lagoon of Albufeira still presents high phytoplankton biomass levels during the closed periods (e.g. 55 mg L À1 , during winter 2004). In these semi-enclosed systems, phytoplankton blooms are recurrent and HAB species are frequently observed. Significant linear relationships were found between nutrient and chlorophyll concentration, during the open and closed periods, for the lagoon of Óbidos. This assessment was performed to validate the use of phytoplankton as an indicator of anthropogenic pressures. A tool for the classification, under the WFD, of the ecological quality of water bodies within these coastal lagoons is also described based on two different situations: open vs closed lagoon. A set of reference conditions and boundaries are also proposed. This tool was tested and validated against a scale of risk. In addition, the usefulness of specific species as ecological quality indicators is discussed, highlighting the occurrence of frequent Prorocentrum minimum blooms and its association with nutrient enrichment events worldwide.
CERN European Organization for Nuclear Research - Zenodo, Aug 21, 2022
The yessotoxin (YTX)-producing dinoflagellate Protoceratium reticulatum is a cosmopolitan species... more The yessotoxin (YTX)-producing dinoflagellate Protoceratium reticulatum is a cosmopolitan species occasionally observed in Portuguese coastal waters. In September 2019, and for the first time, a bloom was detected during a cruise carried out offshore F. Foz, Portugal (latitude 40º13´ N). We sampled a cross shelf section three times in one week, and the results revealed the bloom was already present at mid-shelf in stratified warm waters and was separated from the coast by coastal upwelling waters. Wind data, sea surface temperature (SST) and chlorophyll a (Chl a) satellite images indicated that two days prior to the cruise there was a short but strong upwelling event and that, in the leeward side of an upwelling plume rooted at cape Mondego, there was a large patch of Chl a. The P. reticulatum bloom coincided with the northern side of this patch. It was distributed above the pycnocline, in waters with temperatures from 14º to 17ºC, reaching maxima of 2,250 cells L-1 at the surface (17 ºC). During the upwelling relaxation conditions observed until the end of the cruise, the bloom approached the coast although being observed in low numbers at the most coastal station. Cysts of P. reticulatum were observed in the water column, mainly at the end of the cruise, suggesting encystment was occurring. P. reticulatum co-occurred within a dense mixture of diatoms and dinoflagellates, in particular other HAB species such as a Dinophysis acuta (22.4 x 10 3 cells L-1) and Pseudo-nitzschia seriata group (137 x 10 3 cells L-1).
Hydrobiologia, 2013
To investigate whether phytoplankton is the main factor determining mesozooplankton distribution ... more To investigate whether phytoplankton is the main factor determining mesozooplankton distribution in a continental shelf affected by upwelling, oceanographic surveys were conducted off NW Portugal in 2002 and 2003. During four different seasons, we investigated how the mesoscale relationship between these two communities was forced by environmental conditions across the shelf. The horizontal and vertical distribution of phytoplankton was shaped by wind stress over the water. Diatoms dominated mixed and upwelled waters, whereas dinoflagellates prevailed with thermal stratification. Mesozooplankton was less influenced by wind forcing and concentrated mostly at mid-shelf, on the outer margin of main phytoplankton patches. We found that this pattern, under strong thermal stratification conditions, can be associated with localized grazing ''hot spots''. Copepods were dominant, contributing to the mesozooplankton community variability between cruises whereas phytoplankton presented a clearer seasonal pattern. Nevertheless, the distribution and abundance of mesozooplankton were directly correlated with all phytoplankton groups at the inner-midshelf, while no correlation was observed offshore the outer-shelf. The relative composition of mesozooplankton did not vary between depth strata, whereas a cross-shelf separation occurred between nearshore and widespread clusters of species. This reflected a dependence on phytoplankton and reflected the high variability of oceanographic conditions of the study area.
Netherlands Journal of Aquatic Ecology, 1995
During monthly synoptic surveys in a dry year, physicochemical and biological data were collected... more During monthly synoptic surveys in a dry year, physicochemical and biological data were collected at 15 stations throughout the Tagus estuary. A Principal Component Analysis (PCA) was used to identify the major sources of variation in the data. The most important variations in the Tagus estuary were the spatial variations, mainly the longitudinal ones showing clearly the riverine and the sea water influenced zones of the estuary. The results also showed that a lateral variation was due to the local pollution as indicated by intense organic matter degradation and high rates of oxygen consumption. The seasonal variation related to temperature and the variation associated with the semidiurnal tidal cycle were also apparent. These, however, contributed less than the spatial variation to the total variability in the measured parameters of the Tagus estuary.
Water, 2020
The Water Framework Directive (WFD) aims at evaluating the ecological status of European coastal ... more The Water Framework Directive (WFD) aims at evaluating the ecological status of European coastal water bodies (CWBs). This is a rather complex task and first requires the use of long-term databases to assess the effect of anthropogenic pressure on biological communities. An in situ dataset was assembled using concomitant biological, i.e., chlorophyll a (Chl a) and environmental data, covering the years from 1995 to 2014, to enable a comprehensive assessment of eutrophication in the Western Iberia Coast (WIC). Given the temporal gaps in the dataset, especially in terms of Chl a, satellite observations were used to complement it. Positive relationships between Chl a 90th percentile and nitrogen concentrations were obtained. The Land-Uses Simplified Index (LUSI), as a pressure indicator, showed no relationship with Chl a, except in Galicia, but it highlighted a higher continental pressure in the Portuguese CWBs in comparison with Galician waters. In general terms, the trophic index (TR...
Journal of Sea Research, 2021
Abstract The main meteorological and oceanographic drivers shaping phytoplankton community struct... more Abstract The main meteorological and oceanographic drivers shaping phytoplankton community structure and dynamics are investigated in two wide-open bays influenced by coastal upwelling. Local processes influencing the proliferation of harmful algal bloom species were also investigated. The work was developed during one year in Lisbon Bay (central-west coast) and in Lagos Bay (south coast), both located on the upwelling shadow of prominent headlands. In both bays, the results indicated a bi-modal annual pattern in phytoplankton biomass, and phytoplankton concentration maxima, between spring and late-summer, were associated with high diatom abundances. In Lagos Bay, higher dinoflagellate abundances were observed from spring to autumn, while in Lisbon Bay these were recorded from late-summer to autumn. The coccolithophores were a frequent group all year round in Lisbon Bay, which contrasts with Lagos Bay where they were the least frequent group. The phytoplankton community structure showed significant spatial and seasonal differences. The community succession pattern indicated the existence of four biological seasons in Lisbon Bay and at the offshore site in Lagos Bay. By contrast, the nearshore site in Lagos Bay was characterized by having no significant differences between summer and autumn. Differences in HAB species/groups were also observed between the bays. In general, HABs occurred at higher concentrations and were more persistent in Lagos Bay. In both bays, winter assemblages were influenced by water column mixing processes, although precipitation was also relevant in Lagos. Upwelling was a key driver of the spring phytoplankton community in Lagos Bay, while in Lisbon Bay other factors seemed to drive the spring phytoplankton assemblages. Both summer and autumn communities were related to thermal stratification. In autumn, the occurrence of reversal circulation patterns also played an important role in shaping the phytoplankton communities, especially in Lagos Bay. Overall, this study revealed differences on phytoplankton community patterns in two wide-open bays, shaped by the local environmental variables.
Continental Shelf Research, 2020
The seasonal and interannual variability of chlorophyll a was studied between 2008 and 2016 in tw... more The seasonal and interannual variability of chlorophyll a was studied between 2008 and 2016 in two coastal bays located in the northeastern limit of the Iberia/Canary upwelling ecosystem. The work aims (i) to understand if small latitudinal distances and/or coastline orientation can promote different chlorophyll a seasonal cycles; and (ii) to investigate if different meteorological and oceanographic variables can explain the differences observed on seasonal cycles. Results indicate three main biological seasons with different patterns in the two studied bays. A uni-modal pattern with a short early summer maximum and relatively low chlorophyll a concentration characterized the westernmost sector of the South coast, while a uni-modal pattern characterized by high biomass over a long period, slightly higher in spring than in summer, and high chlorophyll a concentration characterized the central West coast. Comparisons made between satellite estimates of chlorophyll a and in situ data in one of the bays revealed some important differences, namely the overestimation of concentrations and the anticipation of the beginning and end time of the productive period by satellite. Cross-correlation analyses were performed for phytoplankton biomass and different meteorological and oceanographic variables (SST, PAR, UI, MLD and precipitation) using different time lags to identify the drivers that promote the growth and the high levels of phytoplankton biomass. PAR contributed to the increase of phytoplankton biomass observed during winter/midspring, while upwelling and SST were the main explanatory drivers to the high Chl-a concentrations observed in late-spring/summer. Zonal transport was the variable that contributed most to the phytoplankton biomass during late-spring/summer in Lisbon Bay, while the meridional transport combined with SST was more important in Lagos Bay.
Harmful Algae, 2019
The benthic genus Ostreopsis contains toxic-bloom forming species and is an important cause of co... more The benthic genus Ostreopsis contains toxic-bloom forming species and is an important cause of concern in warm-temperate and tropical waters. On the coast of Portugal, NE Atlantic, the occurrence of Ostreopsis cf. siamensis and Ostreopsis cf. ovata has been reported since 2008 and 2011, respectively. This work aims to understand the favorable conditions for high concentrations of Ostreopsis cells in the plankton at two sites, Lagos and Lisbon Bays, located in the South and West coast of Portugal, respectively. This study is based on weekly Ostreopsis abundance data in the plankton, from 2011 to 2017, daily satellite and in situ sea surface temperature (SST), and meteorological and sea state parameters, namely wind stress and significant wave height. The molecular identification of local Ostreopsis spp. is also presented. The maximum cell densities occur between late-summer and autumn. The distribution range of Ostreopsis cf. ovata is restricted to the South coast, while Ostreopsis cf. siamensis has a wider distribution range, being also present on the West coast. In the study period, there was only one occurrence of Ostreopsis spp., in Lagos Bay, with concentrations within the alert phase of monitoring. In Lagos Bay, high Ostreopsis spp. concentrations were related with positive SST anomalies. These high concentrations were often recorded after a period of almost 2-weeks to more than 4-weeks of low sea state (<0.6 m), followed by short time events of onshore wind and moderate waves (0.6-1 m). The former conditions are interpreted as favoring bloom development on the substrate and the latter as causing the re-suspension of Ostreopsis cells in the water column. In Lisbon Bay, O. cf. siamensis occurred in the plankton in few occasions and no clear relation could be established with the studied environmental variables. It is here hypothesized that the recent records of O. cf. siamensis in Lisbon Bay may correspond to an early colonization stage of an invasion process. Knowledge gained on Ostreopsis dynamics along the Portuguese coast can be used for both the improvement of benthic harmful algal blooms (BHABs) monitoring in the region and as a basis to design forecasting models.
PloS one, 2017
From June 2004 to December 2007, samples were weekly collected at a fixed station located at the ... more From June 2004 to December 2007, samples were weekly collected at a fixed station located at the mouth of Ria de Aveiro (West Iberian Margin). We examined the seasonal and inter-annual fluctuations in composition and community structure of the phytoplankton in relation to the main environmental drivers and assessed the influence of the oceanographic regime, namely changes in frequency and intensity of upwelling events, over the dynamics of the phytoplankton assemblage. The samples were consistently handled and a final subset of 136 OTUs (taxa with relative abundance > 0.01%) was subsequently submitted to various multivariate analyses. The phytoplankton assemblage showed significant changes at all temporal scales but with an overriding importance of seasonality over longer- (inter-annual) or shorter-term fluctuations (upwelling-related). Sea-surface temperature, salinity and maximum upwelling index were retrieved as the main driver of seasonal change. Seasonal signal was most evid...
Marine Micropaleontology, 2000
The traditional interpretation of Coccolithus pelagicus as a cold water proxy is examined based o... more The traditional interpretation of Coccolithus pelagicus as a cold water proxy is examined based on its distribution patterns in the water column off the Portuguese coast (using data from eleven cruises) and in Holocene surface sediment samples and Quaternary cores from the same region. Coccolithus pelagicus is common in the Portuguese upwelling system, an area where surface waters are predominantly of subtropical origin. Although revealing an affinity for low temperature upwelled waters, the species was found in waters up to 18ЊC associated with riverine plume and shelf-break fronts. C. pelagicus seemed to consistently occupy a particular ecological niche, between other phytoplankton groups, related to moderate turbulence conditions combined with nutrient availability. From this behaviour, it is proposed that C. pelagicus can be used as a tracer of the periphery of areas of enhanced productivity. Coccolithus pelagicus preferences for fronts of moderate temperature and salinity gradients are tentatively used to explain particular features of its sedimentary record. The repeated increase of C. pelagicus in thanatocoenoses (surface sediment assemblages) close to three river mouths, on the Portuguese shelf, are interpreted as a positive response to the development of riverine plumes. On the other hand, inconsistencies in the correlation between sea surface cooler-glacial and warmerinterglacial isotope stages and the relative abundance pattern of C. pelagicus during the Late Quaternary, as registered in two Galicia Bank piston cores (42ЊN), are tentatively explained in terms of shifts in the extent of the outer limit of the local palaeoproductivity belt off the Iberian Peninsula.
Progress in Oceanography, 2010
The upwelling systems of the eastern boundaries of the world's oceans are susceptible to harmful ... more The upwelling systems of the eastern boundaries of the world's oceans are susceptible to harmful algal blooms (HABs) because they are highly productive, nutrient-rich environments, prone to high-biomass blooms. This review identifies those aspects of the physical environment important in the development of HABs in upwelling systems through description and comparison of bloom events in the Benguela, California and Iberia systems. HAB development is dictated by the influence of wind stress on the surface boundary layer through a combination of its influence on surface mixed-layer characteristics and shelf circulation patterns. The timing of HABs is controlled by windstress fluctuations and buoyancy inputs at the seasonal, event and interannual scales. Within this temporal framework, various mesoscale features that interrupt typical upwelling circulation patterns, determine the spatial distribution of HABs. The inner shelf in particular provides a mosaic of shifting habitats, some of which favour HABs. Changes in coastline configuration and orientation, and bottom topography are important in determining the distribution of HABs through their influence on water stratification and retention. A spectrum of coastline configurations, including headlands, capes, peninsulas, Rías, bays and estuaries, representing systems of increasing isolation from the open coast and consequent increasing retention times, are assessed in terms of their vulnerability to HABs.
Journal of Sea Research, 2009
From July 2001 to May 2005, at a fixed station located in Lisbon Bay (Cascais: 38° 41′ N, 09° 24′... more From July 2001 to May 2005, at a fixed station located in Lisbon Bay (Cascais: 38° 41′ N, 09° 24′ W), surface seawater samples were collected on a weekly basis. We aimed to describe at different temporal scales, short-term to interannual, the phytoplankton community in relation to hydrographic conditions.Maxima of the main phytoplankton groups varied according to the seasonality of
Deep Sea Research Part II: Topical Studies in Oceanography, 2013
The variability of phytoplankton biomass (chlorophyll a as a proxy of biomass) and community stru... more The variability of phytoplankton biomass (chlorophyll a as a proxy of biomass) and community structure was evaluated over and around the Condor seamount SW of Faial Island in the Azores Archipelago using data provided from five cruises (July and November 2009, and March, July and October 2010). Phytoplankton cell abundance, taxonomy and chlorophyll a concentration were related to both the physical-chemical conditions and to the main circulation patterns observed, bringing new insights into the temporal and spatial variability of phytoplankton. Only microphytoplankton and large nanophytoplankton were identified. Higher phytoplankton abundances were observed during 2010 with a maximum in October (1.3 Â 10 5 cells.L −1), and higher biomasses were reported at sub-surface in March (0.43 mg Chl-a.m −3). Diatoms were the dominant group (e.g., Pseudo-nitzschia spp. and Chaetoceros spp.) except in November 2009 when coccolithophores dominated (e.g., Ophiaster spp.). Significant differences were found between seasons but not in space, and salinity appears to be an important factor contributing for this seasonal variation. The present study also provides, for the first time, a list of phytoplankton species for this seamount.
Continental Shelf Research, 2008
From July 2001 to May 2005, seawater samples were collected once a week at a fixed station in Lis... more From July 2001 to May 2005, seawater samples were collected once a week at a fixed station in Lisbon bay (38°41′N, 09°24′W) in order to describe the ecological dynamics of the coccolithophore community. The seasonal and interannual distribution patterns of the different species and their relationships with environmental parameters are addressed. The present work aimed to identify potential proxies for
Uploads
Papers by Maria Teresa Moita