Jose Paula

Jose Paula
University of Lisbon | UL · Departamento de Biologia Animal

PhD

About

116
Publications
27,554
Reads
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3,389
Citations
Citations since 2017
7 Research Items
1069 Citations
2017201820192020202120222023050100150200
2017201820192020202120222023050100150200
2017201820192020202120222023050100150200
2017201820192020202120222023050100150200
Additional affiliations
January 2005 - present
University of Lisbon
Position
  • Professor (Associate)
January 2005 - present
Eduardo Mondlane University
Position
  • Invited Professor

Publications

Publications (116)
Article
Little is known about the ichthyofauna from intertidal rock pools of the west coast of Africa, especially in the Gulf of Guinea. Rock pools are characteristic habitats of the intertidal zone of structurally complex rocky shores, adding important niche space to coastal fish species. In this study, rock pools of three similar rocky shores of Príncipe...
Article
Full-text available
Mangroves are critical to maintaining human well-being and global biodiversity. Eastern and western African shores present major environmental contrasts that reflect on mangrove forests’ structure and the ecosystem services they provide to human communities. This study compares the mangrove forest structure and condition, ecosystem services, and us...
Article
Full-text available
Mangroves are highly productive ecosystems with complex adaptations to the transition between freshwater and sea. Mangroves function as nursery habitats for many organisms, providing protection and food sources for early developmental stages of crustaceans and fish, helping to maintain adjacent marine stocks. Mangroves in São Tomé and Príncipe rema...
Book
Full-text available
The book content is deriving from several regional Marine Science for Management (MASMA) courses on scientific methodologies in marine ecology undertaken by WIOMSA (The Western Indian Ocean Marine Science Association) undertaken at Inhaca Marine Biological Station and Pemba Bay. This manual is a comprehensive and integrated training resource to add...
Article
Full-text available
Approximately 430 brachyuran species have been identified as inhabiting the Western Indian Ocean (WIO), of which only 125 species have full or partial larval descriptions available. These descriptions were analysed and zoeal characters compared, in order to assess diagnostic characters for their identification. An identification key is provided for...
Article
The feeding grounds for four of the most commercially important penaeid shrimp species (Metapenaeus monoceros, M. stebbingi, Penaeus japonicus and Penaeus indicus) within the mangrove and its adjacent coastal habitats (sand flat, mud flat and seagrass meadows) were investigated at Saco and Sangala bays (Inhaca Island, Mozambique, southern-East Afri...
Article
Full-text available
Actinobacteria, commonly known as actinomycetes, are often constituents of sponge-associated bacterial communities and are well known producers of bioactive compounds. In the present study, 7 actinomycete species representing 3 genera were successfully isolated from the sponge Spheciospongia vagabunda (Ridley, 1884) and Neopetrosia exigua (Kirkpat...
Article
Full-text available
The macrofaunal community associated with the sponge Neopetrosia exigua (Kirkpatrick, 1900) was studied across a Mauritian lagoon. A total of 191 macrofauna belonging to 18 macro-invertebrate species were found in associationwith host sponges collected at depths of 1.4-2.7 m. Polychaetes and amphipods mostly inhabited the sponge canals whereas crab...
Chapter
Full-text available
A state of art of the mangroves of Maputo Bay
Article
Coastal ecosystem processes are largely influenced by the interaction of different factors operating at various temporal and spatial scales, specifically those responsible for primary production patterns that modulate zooplankton and subsequent trophic levels. Hydrological processes, such as tidal cycles and coastal currents, nutrients availability...
Article
In marine species, population diversity and differentiation is affected by the population history and by the complex interaction between oceanographic dynamics and ecological traits. In the present study, we examined two species of marine gastropods (the mangrove periwinkle Littoraria scabra and the rocky shore Littoraria glabrata) along the East A...
Article
Full-text available
The purpose of this work was to examine the population structure and reproductive fitness of Pseudione elongata africana while parasitizing the shrimp Palaemon concinnus. About 100 hosts were sampled every 15 days for 12 months in two wetland ecosystems of similar ecological traits in Mozambique: a peri-urban mangrove, Costa do Sol and a pristine m...
Article
Full-text available
Mangrove ecosystems are of great socioeconomic and ecological importance but are adversely affected by anthropogenic activities. Benthic infaunal community studies, particularly of polychaetes, are useful indicators of the health of an ecosystem. An unbalanced After Control/Impact (ACI) design was used to compare the polychaete infaunal community i...
Article
Full-text available
The distribution and abundance of the sponge Spheciospongia vagabunda (Ridley, 1884) was investigated in a shallow lagoon (Albion) of Mauritius (Western Indian Ocean). Sponge abundance and environmental parameters were assessed. Sponges in Albion lagoon were mostly distributed in the central part of the lagoon some distance from wave action. Two di...
Article
In the present study, we assessed the inter‐ and intrapopulation genetic and morphological variation of Cerithidea decollata along the eastern coast of Africa. The population structure of C. decollata along the latitudinal gradient was examined by sequencing 420 bp of the mitochondrial cytochrome c oxidase I (COI) gene in 172 snails from 29 sites,...
Article
At a time when global climate changes are forcing life to adapt to a warming and salinity-changing environment, it is essential to understand how future changes in ocean chemistry will affect species. This study evaluates the combined effects of temperature and salinity on survival and development of Upogebia pusilla larvae. Combinations were made...
Article
The use of wetlands for processing nutrient- and organic-rich wastewater has proved effective to prevent coastal pollution in developing countries, mainly due to low running costs (low energy consumption and training requirements) and relatively high system filtration efficiency (difference of is flushed in the system minus what is flushed out, mul...
Poster
Full-text available
The genetic structure and morphological differentiation of mangrove whelk Cerithidea decollata populations were examined among shelf connected locations along a latitudinal gradient on the east African coast, using molecular and morphometric markers. To evaluate the influence of population history and contemporary processes in population structure,...
Article
Full-text available
The transboundary networks of Marine Protected Areas (MPAs) project, TRANSMAP, assessed local turnover and regional biodiversity across the East African Marine Ecoregion, where inter-governmental co-operation has been working to connect local MPAs. The benthic fauna in the three most dominant habitats on this coastline-beaches, mangroves and seagra...
Article
Tropical coastal ecosystems, such as mangroves, have a great ecological and socioeconomic importance for adjacent systems and local populations, but intensive environmental impact monitoring is still lacking, mainly in East Africa. This study evaluated the potential anthropogenic disturbance on Palaemon concinnus population structure and fitness. P...
Article
Full-text available
: Carcinus maenas has a planktonic larval phase which can potentially disperse over large distances. Consequently, larval transport is expected to play an important role in promoting gene flow and determining population structure. In the present study, population structuring on the southwest coast of England was analysed using molecular and morphom...
Article
Phylogeographic patterns in Uca annulipes sampled from 30 locations across an East African latitudinal gradient were investigated using mitochondrial DNA cytochrome oxidase I sequences and analysed together with patterns of morphometric differentiation. Four hundred and four specimens along the east African coast were sampled, and 18 haplotypes wer...
Article
Benthic metabolism (measured as CO2 production) and carbon oxidation pathways were evaluated in 4 mangrove mesocosms subjected daily to seawater or 60% sewage in the absence or presence of mangrove trees and biogenic structures (pneumatophores and crab burrows). Total CO2 emission from darkened sediments devoid of biogenic structures at pristine co...
Article
The genetic structure and morphometric differentiation of mangrove crab Perisesarma guttatum populations were examined among shelf connected locations along a latitudinal gradient on the East African coast. Over 2200 specimens were sampled from 23 mangrove sites for geometric morphometrics analysis. Population genetic analyses of mitochondrial cyto...
Article
Full-text available
Vertical larval fish movement influences their survival and dispersal, hence recruitment variability. This study presents the vertical behaviour of gold-spot herring (Herklotsichthys quadrimaculatus) larvae observed on the Sofala Bank (Mozambique) throughout a 48-hour period when depth-stratified samples were taken every 2 h, together with CTD prof...
Article
Full-text available
Benthic infaunal community studies are a useful tool to determine the health of an ecosystem. In this study, an unbalanced ACI (After Control/Impact) design was used to compare the infaunal community structure in a contaminated peri-urban mangrove swamp with two nearby pristine mangroves of similar ecological traits in Kenya and Mozambique. Densiti...
Article
The study aimed at investigating the effects of sewage loadings on the behaviour of two fiddler crabs species maintained in a system of experimental mesocosms, built in a mangrove area in Tanzania and inundated with different seawater/sewage mixtures. Our results show that sewage loads led to a modification of the overall activity budget of the cra...
Article
The effects of anthropogenic activities combined with the lack of technical solutions for sewage treatment have lead to serious contamination problems in the coastal ecosystems of East Africa. However, not all contaminants can be considered pollutants. Determining when contamination results in pollution requires not only chemical but also biologica...
Article
Along the Portuguese coast, Pachygrapsus marmoratus has a continuous distribution on rocky shores. In contrast, Carcinus maenas has a discontinuous distribution, inhabiting estuaries. Surveys along a coastal latitudinal gradient were made to assess the effect of the distribution pattern on population differentiation of these two species. Population...
Article
Mangrove forests are known to accomplish crucial ecosystem functions and services. They are nursery areas for fish, prawns and crabs, which provide coastal communities with a variety of food, timber and chemicals, and protect coasts from catastrophic events, such as tsunamis. Recently, a novel ecological service has been proposed for mangrove syste...
Article
The population genetic structure of the shore crab Pachygrapsus marmoratus was studied along the Portuguese coast based on six variable microsatellite loci. Genetic differentiation among populations according to a geographic gradient was not detected. This lack of genetic structure reflects the continuous distribution of the species along the Portu...
Article
Population structure and distribution of Terebralia palustris were compared with the environmental parameters within microhabitats in a monospecific stand of Avicennia marina in southern Mozambique. Stable carbon and nitrogen isotope analyses of T. palustris and potential food sources (leaves, pneumatophore epiphytes, and surface sediments) were ex...
Article
The effect of different sewage concentrations (0, 20, 60 and 100%), vegetation (Bare, Avicennia marina or Rhizophora mucronata) and immersion periods (immersion/emersion period of 12/12 h or 3/3 days just for 100%) conditions were studied for 6 months on survival and growth rates of Terebralia palustris (Linnaeus, 1767). Gastropods' activity and ec...
Article
The effect of different organic-rich sewage concentration (0%, 20% and 60% diluted in seawater) and absence or presence of mangrove trees on the survival, bioturbation activities and burrow morphology of fiddler crabs species was assessed. After 6 months, males of both species always showed higher survival ( approximately 80%) when compared to fema...
Article
Cannibalism is a potentially important factor in the regulation of populations in a range of habitats. The intensity of this biotic factor may be determined by both intra and interspecific interactions. Cancer pagurus and Porcellana platycheles are two co-occurring decapods on Atlantic rocky shores. In laboratory mesocosms, we investigated intra an...
Article
Constructed wetlands, especially mangroves, have been studied for their usefulness in sewage treatment but the effects of mangrove vegetation and a sewage load on mangrove macrofauna have been given little attention. Ocypodid crabs are important components of mangrove forests and constitute good bioindicators of the functioning of the ecosystem as...
Article
Estuarine and nearshore marine areas are vital habitats for several fish and benthic invertebrates. The shore crab Carcinus maenas (Crustacea: Brachyura: Portunidae) inhabits a variety of coastal, estuarine and lagoon habitats. At low tide, habitat structural complexity may be most important for crabs in the intertidal, providing refuge from predat...
Article
1.Pollution of mangrove ecosystems puts their future and that of local communities at risk. Only the use of informed and integrative approaches will successfully maintain and restore these valuable ecosystems.2.Biochemical indicators of organism physiological condition have been widely used to evaluate habitat quality and for early detection of the...
Article
1. Despite the ecological, environmental, and economic importance of mangroves, they are declining at an alarming rate worldwide, mostly as a result of human activities. 2. Along the eastern African coast, Mozambique has the largest mangrove area. Fishing and farming are the main economic activities in the area, and people harvest mangrove vegetati...
Article
1.The structure, forest condition and regeneration status of nine mangrove forests in two trans-boundary areas of Mozambique bordering Tanzania and South Africa were studied. The main objective was to estimate the cutting intensity in the selected sites – Saco and Sangala in southern Mozambique; Mecúfi, Pemba, Ibo, Luchete, Ulo in northern Mozambiq...
Article
The larval and post-larval development of Percnon gibbesi, from a combination of laboratory-reared and plankton-caught material, is described, and larval characters within the Plagusiinae are discussed. The synonymy of Percnon and Pluteocaris is established.
Article
Full-text available
In this study, four species of fiddler crabs (Uca) at Inhaca Island, Mozambique, were studied: their fecundity determined and egg loss between the first and last embryonic development stage evaluated. Ovigerous female crabs were collected throughout February to March (wet season) of 2006, during day-time at low tide, in Ponta Rasa (U. annulipes and...
Article
Full-text available
Landsat 5 TM imagery was used to study the distribution of coastal habitats along the Eastern African coast, from Mnazi Bay (Tanzania) south to Pemba Bay (Mozambique), across the mouth of the Ruvuma estuary and the Quirimbas archipelago. Eight classes of coastal habitats, adapted from the Ramsar convention classification –intertidal, and subtidal –...
Article
Variations in egg volume and fatty acid (FA) content through embryogenesis were evaluated in Uca species from Inhaca island, Mozambique. Egg volume increased 96.1%, 93.3%, 84.2%, 92.9%, 96.3%, respectively, in Uca annulipes, Uca inversa, Uca urvillei, Uca chlorophthalmus and Uca vocans (p < 0.05). Fatty acid content decreased through embryogenesis,...
Article
Full-text available
Variation in the abundance, distribution and size of four species of mangrove littorinid gastropods (genus Littoraria) was investigated using a nested sampling design at different spatial scales along the East African coast, from Tanzania to South Africa. Littorinid abundance and diversity decreased abruptly south of Inhaca Island at the southern e...
Article
Landmark-based geometric morphometric methods were used to test which chela is most suitable to use in population differentiation of brachyuran crabs. Two species were analysed: Pachygrapsus marmoratus, a homochelous species, and Carcinus maenas, a heterochelous species. Variance analysis of shape variables and of each chela was calculated to deter...
Article
Post-settlement processes can regulate the size and structure of marine invertebrate and fish populations. Faster growth and better physiological condition generally increase the survival potential of early juveniles, being usually associated with structurally complex habitats. Successive cohorts of early juvenile Carcinus maenas were followed in s...
Article
Full-text available
Hippolyte kraussiana, a poorly known tropical species, was collected from seagrass beds of Inhaca island, Mozambique, in August 2005 during neap/spring and low/high tides by means of a small aluminium trawl fitted with a 1 mm mesh body and cod-end-net. Specimens were identified, sexed, counted and morphometric measurements were made. Ovigerous fema...
Article
Full-text available
The current conceptual model of reinvasion and settlement for estuarine brachyuran crabs in mesotidal systems is that megalopae undergo selective tidal stream transport, in an upstream direction, and settle by the end of the flood tide. Recent studies on recruitment processes of Carcinus maenas (L.) have reported a clear decoupling between supply,...
Article
Full-text available
Latreutes pymoeus is a poorly studied tropical and sub-tropical shrimp species that mainly lives on sea grass beds. Samples were collected from sea grass beds of Inhaca Island, Mozambique, during August 2005 at neap/spring and low/high tides. Specimens were identified, sexed, counted and morphometric measurements were made. Ovigerous females were c...
Article
Settlement patterns of decapod crustaceans are influenced by size, shape and nature of substrates, as well as by species-specific behaviour patterns. Hog's hair filter material is one of the most commonly used artificial substrates in the study of settlement rates. However, the use of hog's hair collectors in settlement studies poses several proble...
Article
The present review addresses recent findings made in the western Iberia ecosystem on the behavioural and physical interactions that regulate dispersal, supply to coastal habitats and settlement of invertebrate larvae. These studies used the barnacle Chthamalus spp. and the crab Carcinus maenas as model organisms. The observations made on the Iberia...
Article
Settlement is a critical process in the life history of crabs, and thus affecting the abundance, distribution and structure of estuarine commu-nities. The spatial pattern of settlement of megalopae of the shore crab Carcinus maenas along a longitudinal estuarine gradient (Mira River Estuary, Portugal) was examined, as well as its effects on the juv...
Article
Full-text available
It is critical for our knowledge of biodiversity and ecosystem processes to understand how individual species contribute to ecosystem processes and how these contributions vary in space and time. We used a manipulative field experiment in five locations over 17 degrees of latitude [from southern Portugal to the Isle of Man (British Isles)] to deter...
Article
Full-text available
Physical processes that force transport of planktonic larvae of invertebrates are responsible for some of the spatial and temporal variability in recruitment. We investigated the influence of tide- and winddriven circulation on intra-year variability of megalopal supply to populations of the crab Carcinus maenas in 2 estuaries on the Portuguese wes...
Article
Full-text available
Artificial benthic collectors have been widely used for the assessment of settlement rates of decapod crustaceans. However, to date no consistent works have addressed spatial patterns of settlement in different estuarine habitats, and no specific studies targeted the interaction of artificial surfaces with the surrounding natural substrate. It may...
Article
Abstract The bubble crab Dotilla fenestrata forms very dense populations on the sand flats of the eastern coast of Inhaca Island, Mozambique, making it an interesting biological model to examine spatial distribution patterns and test the relative efficiency of common sampling methods. Due to its apparent ecological importance within the sandy inter...
Article
Full-text available
The relative importance of recruitment and post-recruitment processes in determining adult density among marine species varies considerably between species and populations. This study aimed to investigate the relative effects of variation in recruitment and survival rates on the density dynamics of 3 spatially separated natural populations of the b...
Article
Full-text available
The larval stages of the mangrove crab Parasesarma catenata were reared in the laboratory from eggs of females collected in the Mgazana estuary, South Africa. Survival and duration of larval stages were tested for the combined effects of temperature and salinity in a factorial design experiment, using three females each with two replicates of 15 la...
Article
Full-text available
ABSRACT. - The zoea stage I of seven xanthoidean (sensu Serène, 1984) crab species, collected from Inhaca Island, Mozambique, and hatched in the laboratory are described for the first time, Epixanthus frontalis (H. Milne Edwards, 1834), Lydia annulipes (H. Milne Edwards, 1834), Eriphia scabricula Dana, 1852, Lybia plumosa Barnard, 1947, Pilodius pa...
Article
Full-text available
The zoeal stages of Hymenosoma orbiculare Desmarest, 1825 are described and illustrated from materials hatched in the laboratory and plankton collected in the field. A comparison with other hymenosomatid larvae is tabulated and discussed. The present description agrees with typical larval characters of the Hymenosomatidae, and shows a number of dif...
Article
A series of laboratory experiments was conducted at Inhaca Island Marine Biological Station, Mozambique, in order to assess the separate effects of turbidity, prey density, substrate type, pneumatophore density, and the combined effects of turbidity with the latter three, on rate of predation by the thorn fish Terapon jarbua (Forskål, 1775) on whit...
Article
In this study, the larvae of 14 grapsoid species from the East African coast are examined. Original descriptions of the first zoeal stage are provided for the grapsids Grapsus fourmanoiri, G. tenuicrustatus, Pachygrapsus minutus and P. plicatus, and the sesarmids Sarmatium crassum and Sesarma leptosoma. The first zoea of Ilyograpsus paludicola is i...
Article
Full-text available
The complete larval development of Upogebia pusilla (Petagna, 1792) was reared under laboratory conditions and the development comprised four zoeal stages and a megalop. The morphological features were described, illustrated and compared with other known larvae of Upogebia.
Article
Information on recruitment processes of mangrove crustaceans is very limited, in spite of the great importance of these environments for the coastal zone. This study describes the settlement patterns of brachyuran crabs at Ponta Rasa mangrove swamp, Inhaca Island, in order to assess if settlement patterns reflect adult distribution. Hoghair filter...