scholarly journals The holoplankton of the Santa Catarina coast, southern Brazil

2011 ◽  
Vol 83 (2) ◽  
pp. 575-588 ◽  
Author(s):  
Charrid Resgalla Jr
Keyword(s):  
Coastal Waters ◽  
Zooplankton Community ◽  
The State ◽  
Zooplankton Abundance ◽  
Santa Catarina ◽  
The North ◽  
Or Groups ◽  
Parvocalanus Crassirostris ◽  
Water Species ◽  
Potential Use

This paper presents information from different sampling surveys carried out along the Santa Catarina coast in order to outline the biogeographical characteristics of the zooplankton in this region and identify species or groups of species with potential use as bioindicators. Based on a checklist of species of the zooplankton community in the state, it was observed that, in the warmer months of the year, the fauna is similar to that of the states of Paraná and São Paulo (e.g. Creseis virgula f. virgula, Penilia avirostris; Acartia lilljeborgi and Oithona oswaldocruzi), while in the colder months there are coastal representatives of the fauna of Rio Grande do Sul (e.g. Acartia tonsa). However, the zooplankton consists predominantly of warm water species for most of the year, which is typical of Tropical Shelf Waters. Various species of zooplankton can be used as hydrological indicators, enabling a distinction to be made between coastal waters which are influenced by continental inputs (e.g. Paracalanus quasimodo and Parvocalanus crassirostris), common in the north of the state, and processes of upwelling (e.g. Podon intermedius) and the influence of the Subtropical Shelf Front (e.g. Pleopis polyphemoides), coming from the south. The different environments investigated present a zooplankton abundance that depends on the influence of continental inputs and the possibility of their retaining and contribution for the coastal enrichment, which varies seasonally

Advancing an Ecosystem Approach in the Gulf of Maine

2012 ◽  
Keyword(s):  
Gulf Of Maine ◽  
Historical Context ◽  
Zooplankton Community ◽  
Ecosystem Approach ◽  
Environmental Indicators ◽  
Zooplankton Abundance ◽  
The North ◽  
Oscillation Result ◽  
The North Atlantic Oscillation ◽  
Ecosystem Changes

<i>Abstract</i>.—Numerous studies have examined the dynamics of zooplankton in the Gulf of Maine. Here the authors reanalyze relationships found in these prior studies, using updated data, with the goal of evaluating previously identified zooplankton– environment linkages. These reanalyses support the finding that major changes occurred in the zooplankton community during the late 1980s and again in the late 1990s. Evidence for a broader change in the ecosystem during these periods and mechanisms responsible for changes in the zooplankton are discussed. In general, the results of previous studies are upheld, but it is shown that the relationship between the environmental indicators and zooplankton change through time. This result implies that all data collected in the Gulf of Maine must be considered within a historical context and that the observed environmental–zooplankton linkages are still not well understood. It is possible that changes in the seasonal cycle or shifts in the pressures systems responsible for the North Atlantic oscillation result in nonstationary environmental–zooplankton relations. These results indicate that a mechanistic understanding is required to explain the documented environment–zooplankton linkages rather than correlative explanations. Since the causes of the late-1980s and late-1990s regime shifts are still unclear, future ecosystem-based management in the Gulf of Maine must be supported by continued observation and analysis to identify ecosystem changes soon after they occur. Scenario-driven modeling also is needed to provide guidance as to how the ecosystem will respond to future changes in zooplankton abundance and community structure.

scholarly journals Reptilia, Squamata, Leiosauridae, Urostrophus vautieri Duméril and Bribon, 1837: distribution extension, new state record, and geographic distribution map

Check List ◽  
2010 ◽  
Vol 6 (3) ◽  
pp. 432
Author(s):  
João Luiz Gasparini ◽  
Diogo Andrade Koski ◽  
Pedro L.V. Peloso
Keyword(s):  
Geographic Distribution ◽  
Rio De Janeiro ◽  
Rio Grande ◽  
First Record ◽  
Minas Gerais ◽  
The State ◽  
Rio Grande Do Sul ◽  
Distribution Map ◽  
Santa Catarina ◽  
The North

We present the first record of Urostrophus vautieri for the state of Espírito Santo and a distribution map for the species. This species was previoulsy known from the states of Minas Gerais, Rio de Janeiro, São Paulo, Paraná, Santa Catarina, and Rio Grande do Sul. The present record represent an extension of nearly 200 km to the North from the nearest published record for the species.

scholarly journals Diptera survey in human corpses in the north of the state of Santa Catarina, Brazil

2017 ◽  
Vol 4 (1) ◽  
Author(s):  
Denise Monique Dubet da Silva Mouga ◽  
Anderson Gaedke
Keyword(s):  
Gaseous Phase ◽  
The State ◽  
Lucilia Cuprina ◽  
Santa Catarina ◽  
Hermetia Illucens ◽  
Chrysomya Megacephala ◽  
Chrysomya Albiceps ◽  
The North ◽  
Four Seasons ◽  
Decomposition Phase

Aiming to verify the species associated with the decomposition process carried out by necrophagous insects in human bodies, 11 species of dipterans were collected in 10 distinct cadavers from April 2014 to March 2016, resulting in individuals of the families Calliphoridae (Calliphora lopesi (Mello, 1962), Chrysomya megacephala (Fabricius, 1794), Chrysomya albiceps (Wiedemann, 1819), Hemilucilia segmentaria (Fabricius, 1805), Hemilucilia semidiaphana (Rondani, 1850), Lucilia cuprina (Wiedemann, 1830) and Lucilia eximia (Wiedemann, 1819)), Sarcophagidae (Peckia (Euboettcheria) australis (Fabricius, 1805) and Peckia (Sarcodexia) lambens (Wiedemann, 1830)), Muscidae (Muscidae sp.) and Stratiomyidae (Hermetia illucens (L. 1758)). Regarding the seasonality, dipterans were found in corpses in the four seasons, with distinct richness in each one. Dipterans were observed in corpses in all phases of decomposition (coloration, gaseous, colliquative and remains), the greater richness being verified in the gaseous phase. The data demonstrate differences in ecological succession, evidencing specialization of the insects found in relation to seasonality and the decomposition phase.

Peasants, Prophets, and the Power of a Millenarian Vision in Twentieth-Century Brazil

1990 ◽  
Vol 32 (3) ◽  
pp. 488-514 ◽  
Author(s):  
Todd A. Diacon
Keyword(s):  
Twentieth Century ◽  
North American ◽  
Rio Grande ◽  
Sao Paulo ◽  
The State ◽  
Rio Grande Do Sul ◽  
Santa Catarina ◽  
Railroad Workers ◽  
Railway Company ◽  
The North

Flood lights illuminated the southern Brazilian night as thousands of railroad workers struggled to meet their daily trace construction quotas. Brazil Railway Company foremen shouted their orders so as to be heard above the din of massive steam-powered earth movers. These machines, a novelty for the region in 1910, were the North American-owned company's newest ally in its push to meet the rapidly approaching construction deadline. On December 17, 1910, a gayly decorated train crossed the Santa Catarina-Rio Grande do Sul border, thereby inaugurating Brazil's newest railroad line. The company had succeeded in connecting the agricultural south with Brazil's rising industrial star, the state of São Paulo.

scholarly journals Zooplankton community structure before and after Mnemiopsis leidyi arrival

2019 ◽  
Vol 41 (6) ◽  
pp. 803-820
Author(s):  
Emanuela Fiori ◽  
Margherita Benzi ◽  
Carla Rita Ferrari ◽  
Cristina Mazziotti
Keyword(s):  
Temporal Dynamics ◽  
Zooplankton Community ◽  
Mnemiopsis Leidyi ◽  
Zooplankton Abundance ◽  
Zooplankton Community Structure ◽  
North West ◽  
The North ◽  
Before And After ◽  
Emilia Romagna Region ◽  
Time Periods

Abstract In the present study, the temporal dynamics of zooplankton community of the North West Adriatic Sea (coastal area of Emilia-Romagna region, Italy) was monitored over 12 years. The distribution and abundance of zooplankton species were investigated in relation to physical and biological parameters (temperature, salinity, dissolved oxygen and chlorophyll-a). Since November 2015 the non-indigenous copepod Pseudodiaptomus marinus, Sato, 1913 has been observed in the study area. During summer 2016, the American comb jelly Mnemiopsis leidyi, A. Agassiz, 1865 was recorded there for the first time and its presence was continuously monitored since that time (weekly observations from August 2016 to December 2017). Our study confirmed that the environmental conditions of the study area were suitable for M. leidyi growth. In addition, due to the combined effects of temperature, salinity and food availability M. leidyi was able to survive during winter months. Particular attention was then given to zooplankton abundance and community changes between two time periods: before and after M. leidyi arrival. Statistical analysis revealed significant differences in zooplankton abundance between the two time periods and a decrease in species diversity and evenness was observed during summer 2016.

scholarly journals EFFECT OF CLIMATE CHANGE ON THE DEMOGRAPHICS OF CURITIBA PRISMATICA (D. LEGRAND) SALYWON & LANDRUM: AN ENDEMIC ARAUCARIA FOREST SPECIES

FLORESTA ◽  
2021 ◽  
Vol 51 (4) ◽  
pp. 954
Author(s):  
Richeliel Albert Rodrigues Silva ◽  
Luciano Farinha Watzlawick ◽  
Henrique Soares Koehler ◽  
Fábio De Almeida Vieira ◽  
Fernanda Moura Fonseca Lucas ◽  
...  
Keyword(s):  
Climate Change ◽  
The State ◽  
Ex Situ ◽  
Santa Catarina ◽  
Irreversible Damage ◽  
The North ◽  
The Future ◽  
Current Scenario ◽  
Rcp 8.5 ◽  
Ombrophilous Forest

With the occurrence of intensive climate change, there is a risk of irreversible damage to global biodiversity, resulting in reduction of geographical distribution and species extinction. The objective of this study was to evaluate the current distribution and the future projection of the areas of occurrence of Curitiba prismatica. Current occurrence data accessed in the SpeciesLink database and scientific studies were collected, which were correlated with the bioclimatic data available in WorldClim, for the current and future periods (2070), in the optimistic (RCP 4.5) and pessimistic scenarios (RCP 8.5) of the HadGEM2-ES model. In the current scenario, a species presents suitability restricted to mixed ombrophilous forest (MOF), with limited distribution to the center-south of the state of Paraná and the north of the state of Santa Catarina. For the future, there were reductions in the areas of climatic susceptibility for the species, both in the optimistic and pessimistic scenarios. In the RCP 4.5 scenario, the predictive reduction was found in the midwest region of Paraná, unlike the RCP 8.5 scenario, which showed a low reduction in this region. Therefore, in the future, areas with high suitability will tend to contract, but restricted to the regions of the first and second plateau of Paraná and the north of Santa Catarina. In this sense, these areas are indicated for commercial planting and in situ and ex situ conservation of the species.

scholarly journals Lesser Grison (Galictis cuja Molina, 1782) as host of Dioctophyme renale Goeze, 1782

2018 ◽  
Vol 84 (0) ◽  
Author(s):  
Daniela Pedrassani ◽  
Mayana Worm ◽  
Jéssica Drechmer ◽  
Margareth Cristina Iazzetti Santos
Keyword(s):  
The State ◽  
Helminth Parasite ◽  
Zoonotic Potential ◽  
Human Beings ◽  
Santa Catarina ◽  
Wild Carnivores ◽  
The North

ABSTRACT: The Dioctophyme renale is a helminth parasite of the kidney usually seen in domestic and wild carnivores and rarely in human beings. This is a report about the parasitism of D. renale found in the kidney of two roadkill lesser grisons (Galictis cuja) in the North of the state of Santa Catarina, Brazil. The report of this parasitism in this species is important to complement the records about this native carnivore as a contributor in the epidemiologic chain while host/disseminator of this helminth with zoonotic potential.

scholarly journals Zooplankton Abundance and Diversity in the Tropical and Subtropical Ocean

Diversity ◽  
2019 ◽  
Vol 11 (11) ◽  
pp. 203 ◽  
Author(s):  
Fernández de Puelles ◽  
Gazá ◽  
Cabanellas-Reboredo ◽  
Santandreu ◽  
Irigoien ◽  
...  
Keyword(s):  
Pacific Ocean ◽  
North Pacific Ocean ◽  
Zooplankton Community ◽  
Global Scale ◽  
Zooplankton Abundance ◽  
The North ◽  
South Pacific Ocean ◽  
Low Latitudes ◽  
Clausocalanus Furcatus ◽  
Abundance And Diversity

The abundance and composition of zooplankton down to 3000 m depth was studied in the subtropical and tropical latitudes across the Atlantic, Pacific and Indian Oceans (35 °N–40 °S). Samples were collected from December 2010 to June 2011 during the Malaspina Circumnavigation Expedition. Usually, low abundances were observed with the highest values found in the North Pacific Ocean, Benguela, and off Mauritania, and the lowest in the South Pacific Ocean. No significant differences in abundance and zooplankton composition were found among oceans, with depth being consistently the most important factor affecting their distribution. Each depth strata were inhabited by distinct copepod assemblages, which significantly differed among the strata. The contribution of copepods to the zooplankton community increased with the depth although, as expected, their abundance strongly decreased. Among the copepods, 265 species were identified but 85% were rare and contributed less than 1% in abundance. Clausocalanus furcatus and Nannocalanus minor dominated the epipelagic strata. Pleuromamma abdominalis and Lucicutia clausi were of importance in the mesopelagic layer, and Pareucalanus, Triconia, Conaea and Metridia brevicauda in the bathypelagic layer. Our results provide a global-scale assessment of copepod biodiversity and distribution, providing a contemporary benchmark to follow future ocean changes at low latitudes.

Zooplankton Community Structure in the North Sea and Northeast Atlantic: Development and Test of a Biological Model

1983 ◽  
Vol 40 (11) ◽  
pp. 1912-1924 ◽  
Author(s):  
J. Anthony Koslow
Keyword(s):  
North Sea ◽  
Size Structure ◽  
Zooplankton Community ◽  
Major Elements ◽  
Zooplankton Abundance ◽  
Zooplankton Community Structure ◽  
Marine Zooplankton ◽  
Physical Forcing ◽  
The North ◽  
Zooplankton Communities

A simulation model was used to examine whether predatory interactions may regulate the size structure of marine zooplankton communities, as observed in many freshwater systems. Results of the model were consistent with the freshwater studies, such that large increases or decreases in planktivorous fish led to the dominance of small or large zooplankters, respectively. However, model predictions were not consistent with the recent decline in the northeastern Atlantic of most major elements of the pelagic zooplankton community along with North Sea herring and mackerel stocks. The overall decline of the pelagic community throughout this region indicates that zooplankton abundance may be regulated by physical forcing, and that these populations may be food- rather than predator-limited. Realistic ecological simulations of marine pelagic systems may require more complex two-layer models allowing for the effects of vertical migration, and with day–night differences in food availability and selectivity.

Ras al Khaimah: further archaeological discoveries

Antiquity ◽  
1976 ◽  
Vol 50 (200) ◽  
pp. 216-222
Author(s):  
Beatrice De Cardi
Keyword(s):  
United Arab Emirates ◽  
The State ◽  
Focused Attention ◽  
North East ◽  
The North ◽  
History Of ◽  
The City

Ras a1 Khaimah is the most northerly of the seven states comprising the United Arab Emirates and its Ruler, H. H. Sheikh Saqr bin Mohammad al-Qasimi, is keenly interested in the history of the state and its people. Survey carried out there jointly with Dr D. B. Doe in 1968 had focused attention on the site of JuIfar which lies just north of the present town of Ras a1 Khaimah (de Cardi, 1971, 230-2). Julfar was in existence in Abbasid times and its importance as an entrep6t during the sixteenth and seventeenth centuries-the Portuguese Period-is reflected by the quantity and variety of imported wares to be found among the ruins of the city. Most of the sites discovered during the survey dated from that period but a group of cairns near Ghalilah and some long gabled graves in the Shimal area to the north-east of the date-groves behind Ras a1 Khaimah (map, FIG. I) clearly represented a more distant past.

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