scholarly journals Seasonal dynamics of phytoplankton in response to environmental variables in contrasting coastal ecosystems

2019 ◽  
Vol 26 (12) ◽  
pp. 12025-12041 ◽  
Author(s):  
Suchismita Srichandan ◽  
Sanjiba Kumar Baliarsingh ◽  
Satya Prakash ◽  
Aneesh A. Lotliker ◽  
Chandanlal Parida ◽  
...  
Keyword(s):  
Seasonal Dynamics ◽  
Environmental Variables ◽  
Coastal Ecosystems

Seasonal dynamics of Bythonomus lemani and Bothrioneurum vejdovskyanum (Oligochaeta, Annelida) in relation to environmental variables

Biologia ◽  
2006 ◽  
Vol 61 (5) ◽  
Author(s):  
Jana Schenková ◽  
Jan Helešic ◽  
Jiří Jarkovský
Keyword(s):  
Seasonal Dynamics ◽  
Environmental Variables ◽  
Habitat Preferences ◽  
Oxygen Demand ◽  
Significant Negative Correlation ◽  
Life Cycles ◽  
Reproduction Cycle ◽  
Influence Of Water ◽  
One Year ◽  
First Time

AbstractThe seasonal dynamics of Bythonomus lemani (Lumbriculidae) were studied for the first time and the knowledge of Bothrioneurum vejdovskyanum (Tubificidae) was extended based on four quantitative samples of oligochaetes taken monthly in the Rokytná River (Czech Republic) during a two-year study (April 1999–April 2001). The influence of water temperature, velocity, depth, discharge, pH, conductivity, dissolved oxygen amount and biochemical oxygen demand (BOD) on their life cycles was evaluated. Habitat preferences of the juvenile and adult stages were recorded. Time series analysis was used to determine the worm densities, seasonality and trends. For Byth. lemani one distinct reproduction cycle per year was found and this was regulated by temperature, while Both. vejdovskyanum showed a one-year cycle not significantly dependent on measured environmental variables. The overall trend was an increase in density for Byth. lemani and a decrease in density for Both. vejdovskyanum. Byth. lemani showed a significant negative correlation between the trend of its density and BOD concentration.

Picophytoplankton Seasonal Dynamics and Interactions with Environmental Variables in Three Mediterranean Coastal Lagoons

2016 ◽  
Vol 40 (2) ◽  
pp. 469-478 ◽  
Author(s):  
Silvia Pulina ◽  
Cecilia Teodora Satta ◽  
Bachisio Mario Padedda ◽  
Anna Maria Bazzoni ◽  
Nicola Sechi ◽  
...  
Keyword(s):  
Seasonal Dynamics ◽  
Environmental Variables ◽  
Coastal Lagoons

scholarly journals Seasonal dynamics of coastal ecosystems and export production at high latitudes: A modeling study

2001 ◽  
Vol 46 (8) ◽  
pp. 1845-1859 ◽  
Author(s):  
Ru Cheng Tian ◽  
Alain F. Vézina ◽  
Michel Starr ◽  
François Saucier
Keyword(s):  
Seasonal Dynamics ◽  
Coastal Ecosystems ◽  
High Latitudes ◽  
Export Production ◽  
Modeling Study

scholarly journals Seasonal Dynamics of Biological Indicators of the European Flounder Platichthys flesus Linnaeus, 1758 in the Central Part of the Kola Bay in 2018

2020 ◽  
Author(s):  
Oleg Bondarev
Keyword(s):  
Body Weight ◽  
Seasonal Dynamics ◽  
Distribution Density ◽  
Biological Indicators ◽  
Coastal Ecosystems ◽  
Fish Growth ◽  
Platichthys Flesus ◽  
Power Equation ◽  
Sexual Structure ◽  
European Flounder

The data on the seasonal dynamics of biological indicators of European flounder are presented for the central part of the Kola Bay for the year of 2018. In particular, the size-age and population sexual structure, feeding, and distribution density of European flounder were considered. The constants of the power equation of the dependence of the fish body weight on its length were obtained, the peculiarities of the fish growth were revealed. It is assumed that European flounder is one of the important components of the coastal ecosystems of the Kola Bay.

Assessment of land-use change in coastal areas through geographical information systems

2020 ◽  
Vol 13 (10) ◽  
Author(s):  
Verónica Lango-Reynoso ◽  
Karla Teresa González-Figueroa ◽  
Fabiola Lango-Reynoso ◽  
María del Refugio Castañeda-Chávez ◽  
Jesús Montoya-Mendoza
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Geographical Information Systems ◽  
Design Methodology ◽  
Scientific Information ◽  
Coastal Ecosystems ◽  
Coastal Areas ◽  
Geographical Information ◽  
Coastal Zones ◽  
Computer Based

Objective: This article describes and analyzes the main concepts of coastal ecosystems, these as a result of research concerning land-use change assessments in coastal areas. Design/Methodology/Approach: Scientific articles were searched using keywords in English and Spanish. Articles regarding land-use change assessment in coastal areas were selected, discarding those that although being on coastal zones and geographic and soil identification did not use Geographic Information System (GIS). Results: A GIS is a computer-based tool for evaluating the land-use change in coastal areas by quantifying variations. It is analyzed through GIS and its contributions; highlighting its importance and constant monitoring. Limitations of the study/Implications: This research analyzes national and international scientific information, published from 2007 to 2019, regarding the land-use change in coastal areas quantified with the digital GIS tool. Findings/Conclusions: GIS are useful tools in the identification and quantitative evaluation of changes in land-use in coastal ecosystems; which require constant evaluation due to their high dynamism.

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