Spatio-temporal variation of the pink shrimp Farfantepenaeus paulensis (Crustacea, Decapoda, Penaeidae) associated to the seasonal overture of the sandbar in a subtropical lagoon

On the southern Brazilian coast, the penaeid pink shrimp Farfantepenaeus paulensis (Pérez-Farfante, 1967) is intensively captured by both artisanal and industrial fisheries. In the Ibiraquera Lagoon, artisanal fishing of juvenile stocks has declined sharply over the last 15 years. The traditional management methods used by fishermen are no longer sustainable due to conflicts with the demands of tourism and weak environmental and public agencies. The dynamics of the timing of the artificial opening and natural reformation of a sandbar across the mouth of the lagoon are regarded as a central socio-ecological problem. We evaluated the abundance and biomass variation of F. paulensis throughout the year and along a spatial gradient measured from the sandbar into the lagoon. We also explored the influence of opening the sandbar on the shrimp population. Samples were collected monthly from February 2004 to February 2005, using a 27 mm mesh cast net, in four different areas, with three sites being sampled per area. Small numbers of large shrimps were captured in the upper area, while greater biomass and abundance of small shrimps were observed near the sandbar, suggesting the role of the inner area as a refuge for growing. The highest records for biomass and abundance were recorded during warm months, regardless if the lagoon was open or closed by the sandbar. The Ibiraquera Lagoon could be more productive for fishermen if the sandbar opening was coincident to the period of natural post-larvae influx. Furthermore, coastal stocks could be improved by opening the sandbar again during summer in conjunction with fishing quotas.

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Modulating reproduction of Penaeidae shrimps: ecological responses of two sympatric species (Decapoda: Dendrobranchiata) on south-eastern Brazilian coast

Journal of the Marine Biological Association of the United Kingdom ◽

10.1017/s0025315412000835 ◽

2012 ◽

Vol 93 (3) ◽

pp. 733-740 ◽

Cited By ~ 7

Author(s):

Ana Paula Pereira Gomes ◽

Karina Annes Keunecke ◽

Demarques Ribeiro da Silva ◽

Marcelo Vianna

Keyword(s):

Sex Ratio ◽

Carapace Length ◽

Sympatric Species ◽

Brazilian Coast ◽

Guanabara Bay ◽

Pink Shrimp ◽

South Eastern ◽

Eastern Brazil ◽

Farfantepenaeus Paulensis ◽

Continuous Reproduction

The present study investigated the reproductive biology of the pink shrimp Farfantepenaeus brasiliensis and Farfantepenaeus paulensis captured offshore and at two important fishing grounds, Guanabara Bay and Araruama Lagoon both on the south-eastern Brazil coast. The females’ size at first maturation was 37.90 mm of carapace length (CL) for F. brasiliensis and 41.95 mm of CL for F. paulensis. Both species presented continuous reproduction with two spawning peaks. For F. brasiliensis these peaks occurred during summer and winter and for F. paulensis during summer and autumn. The sex-ratio of the pink shrimp was favourable to the number of females which can be a strategy to guarantee the reproduction.

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On Calculation Schemes of Spatial Gradient for Spatio-temporal Derivative Method

Journal of the Visualization Society of Japan ◽

10.3154/jvs.23.supplement1_21 ◽

2003 ◽

Vol 23 (Supplement1) ◽

pp. 21-24

Author(s):

Yasufumi YAMAMOTO ◽

Yuya AKAMATSU ◽

Noriyoshi YONEHARA ◽

Tomomasa UEMURA

Keyword(s):

Spatial Gradient ◽

Derivative Method ◽

Temporal Derivative ◽

Spatio Temporal

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The Role of Spatio-Temporal Information to Govern the COVID-19 Pandemic: A European Perspective

ISPRS International Journal of Geo-Information ◽

10.3390/ijgi10030166 ◽

2021 ◽

Vol 10 (3) ◽

pp. 166

Author(s):

Hartmut Müller ◽

Marije Louwsma

Keyword(s):

European Union ◽

Spatial Distribution ◽

Spatial Information ◽

National Level ◽

Temporal Information ◽

The European Union ◽

Member States ◽

Heavy Burden ◽

Spatio Temporal

The Covid-19 pandemic put a heavy burden on member states in the European Union. To govern the pandemic, having access to reliable geo-information is key for monitoring the spatial distribution of the outbreak over time. This study aims to analyze the role of spatio-temporal information in governing the pandemic in the European Union and its member states. The European Nomenclature of Territorial Units for Statistics (NUTS) system and selected national dashboards from member states were assessed to analyze which spatio-temporal information was used, how the information was visualized and whether this changed over the course of the pandemic. Initially, member states focused on their own jurisdiction by creating national dashboards to monitor the pandemic. Information between member states was not aligned. Producing reliable data and timeliness reporting was problematic, just like selecting indictors to monitor the spatial distribution and intensity of the outbreak. Over the course of the pandemic, with more knowledge about the virus and its characteristics, interventions of member states to govern the outbreak were better aligned at the European level. However, further integration and alignment of public health data, statistical data and spatio-temporal data could provide even better information for governments and actors involved in managing the outbreak, both at national and supra-national level. The Infrastructure for Spatial Information in Europe (INSPIRE) initiative and the NUTS system provide a framework to guide future integration and extension of existing systems.

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From Loschmidt daemons to time-reversed waves

Philosophical Transactions of The Royal Society A Mathematical Physical and Engineering Sciences ◽

10.1098/rsta.2015.0156 ◽

2016 ◽

Vol 374 (2069) ◽

pp. 20150156 ◽

Cited By ~ 8

Author(s):

Mathias Fink

Keyword(s):

Wave Propagation ◽

Time Reversal ◽

Degrees Of Freedom ◽

Point Of View ◽

Propagation Time ◽

Reversal Invariance ◽

Spatial Boundary ◽

Dual Approaches ◽

Spatio Temporal

Time-reversal invariance can be exploited in wave physics to control wave propagation in complex media. Because time and space play a similar role in wave propagation, time-reversed waves can be obtained by manipulating spatial boundaries or by manipulating time boundaries. The two dual approaches will be discussed in this paper. The first approach uses ‘time-reversal mirrors’ with a wave manipulation along a spatial boundary sampled by a finite number of antennas. Related to this method, the role of the spatio-temporal degrees of freedom of the wavefield will be emphasized. In a second approach, waves are manipulated from a time boundary and we show that ‘instantaneous time mirrors’, mimicking the Loschmidt point of view, simultaneously acting in the entire space at once can also radiate time-reversed waves.

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The effects of different temperature and salinity levels on the acute toxicity of zinc in the Pink Shrimp (Farfantepenaeus paulensis)

Marine and Freshwater Behaviour and Physiology ◽

10.1080/10236244.2011.617606 ◽

2011 ◽

Vol 44 (4) ◽

pp. 251-263 ◽

Cited By ~ 15

Author(s):

Edison Barbieri ◽

Sônia Assami Doi

Keyword(s):

Acute Toxicity ◽

Pink Shrimp ◽

Farfantepenaeus Paulensis ◽

Salinity Levels

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A geographical analysis of the first wave of Covid-19 with reference to highland and lowland regions of India

National Geographical Journal of India ◽

10.48008/ngji.1776 ◽

2021 ◽

Vol 67 (3) ◽

pp. 263-281

Author(s):

Bindhy Wasini Pandey ◽

◽

Yuvraj Singh ◽

Usha Rani ◽

Roosen Kumar ◽

...

Keyword(s):

Infectious Diseases ◽

Temporal Pattern ◽

Regional Disparity ◽

Healthcare Facilities ◽

Indian Himalayan Region ◽

Pollution Levels ◽

Extensive Coverage ◽

The World ◽

Spatio Temporal

The issue of health has become a major concern in recent years as a result of extensive coverage of media reporting outbreaks of diseases and the spread of deadly infectious diseases around the world. There has been a growing concern over the accessibility and affordability of healthcare facilities. The spread of the ongoing pandemic COVID-19 has been felt all over the world. However, the rate of infection varies across certain regions of the world. There exists intra-regional disparity as well. Recent research shows that there are latitudinal and altitudinal variations in the spread of the COVID-19. This paper studies variation of infection COVID-19 across the highlands of the Indian Himalayan Region (IHR) and the lowland areas in India. The paper also examines the role of geographical spaces in the spread of coronavirus in these regions. The study indicates that place-based effects (altitude, temperature, pollution levels, etc.) on health can be seen in a variety of ways; therefore, locational issues are very important for addressing health questions. The paper also analyses the Spatio-temporal pattern of the COVID-19 pandemic in the study area to understand the nature of the disease in different locations.

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Clarifying the role of radiative mechanisms in the spatio-temporal changes of land surface temperature across the Horn of Africa

Remote Sensing of Environment ◽

10.1016/j.rse.2018.11.024 ◽

2019 ◽

Vol 221 ◽

pp. 210-224 ◽

Cited By ~ 11

Author(s):

Temesgen Alemayehu Abera ◽

Janne Heiskanen ◽

Petri Pellikka ◽

Miina Rautiainen ◽

Eduardo Eiji Maeda

Keyword(s):

Surface Temperature ◽

Land Surface Temperature ◽

Land Surface ◽

Temporal Changes ◽

Horn Of Africa ◽

Spatio Temporal

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Global XCO<sub>2</sub> anomalies as seen by Orbiting Carbon Observatory-2

10.5194/acp-2018-649 ◽

2018 ◽

Cited By ~ 1

Author(s):

Janne Hakkarainen ◽

Iolanda Ialongo ◽

Shamil Maksyutov ◽

David Crisp

Keyword(s):

Biomass Burning ◽

Complex Model ◽

Anthropogenic Emissions ◽

Local Concentration ◽

Fossil Fuel Combustion ◽

Annual Variations ◽

Middle Latitudes ◽

Eastern Usa ◽

Spatio Temporal

Abstract. NASA's carbon dioxide mission, Orbiting Carbon Observatory-2, has been operating for three full years (2015–2017). Here, we provide a global (60° S–60° N) view of the XCO2 anomalies along with their annual variations and seasonal patterns. We show that the XCO2 anomaly patterns are robust and consistent from year-to-year. We compare these anomalies to fluxes from anthropogenic, biospheric and biomass burning and to model-simulated local concentration enhancements. We find that, despite the simplicity of the method, the anomalies describe the spatio-temporal variability of XCO2 (including anthropogenic emissions and seasonal variability related to vegetation and biomass burning) consistently with more complex model-based approaches. We see, for example, that positive anomalies correspond to fossil fuel combustion over the major industrial areas (e.g., China, eastern USA, central Europe, India, and the Highveld region in South Africa), shown as large positive XCO2 enhancements in the model simulations. Also, we find corresponding positive anomalies and fluxes over biomass burning areas during different fire seasons. On the other hand, the largest negative anomalies correspond to the growing season in the northern middle latitudes, characterized by negative XCO2 enhancements from simulations and high SIF values (indicating the occurrence of photosynthesis). Finally, we show how XCO2 anomalies facilitate the detection of anthropogenic signatures for several local scale case studies, both in the Northern and Southern Hemisphere. The results demonstrate the potential of satellite-based XCO2 observations for understanding the role of man-made and natural contributions to the atmospheric CO2 levels.

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Intra-regional transportation of a tugboat fouling community between the ports of recife and natal, northeast Brazil

Brazilian Journal of Oceanography ◽

10.1590/s1679-87592010000700002 ◽

2010 ◽

Vol 58 (spe3) ◽

pp. 01-14 ◽

Cited By ~ 3

Author(s):

Cristiane Maria Rocha Farrapeira ◽

Gledson Fabiano de Araujo Ferreira ◽

Deusinete de Oliveira Tenório

Keyword(s):

Rio Grande ◽

Nonindigenous Species ◽

Brazilian Coast ◽

Northeast Brazil ◽

Fouling Community

This study aimed to identify the incrusting and sedentary animals associated with the hull of a tugboat active in the ports of Pernambuco and later loaned to the port of Natal, Rio Grande do Norte. Thus, areas with dense biofouling were scraped and the species then classified in terms of their bioinvasive status for the Brazilian coast. Six were native to Brazil, two were cryptogenic and 16 nonindigenous; nine of the latter were classified as established (Musculus lateralis, Sphenia fragilis, Balanus trigonus, Biflustra savartii, Botrylloides nigrum, Didemnum psammatodes, Herdmania pallida, Microscosmus exasperatus, and Symplegma rubra) and three as invasive (Mytilopsis leucophaeta, Amphibalanus reticulatus, and Striatobalanus amaryllis). The presence of M. leucophaeata, Amphibalanus eburneus and A. reticulatus on the boat's hull propitiated their introduction onto the Natal coast. The occurrence of a great number of tunicate species in Natal reflected the port area's benthic diversity and facilitated the inclusion of two bivalves - Musculus lateralis and Sphenia fragilis - found in their siphons and in the interstices between colonies or individuals, respectively. The results show the role of biofouling on boat hulls in the introduction of nonindigenous species and that the port of Recife acts as a source of some species.

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