scholarly journals Seasonal dynamics in an intertidal mudflat: the case of a complex trematode life cycle

2012 ◽  
Vol 455 ◽  
pp. 79-93 ◽  
Author(s):  
A Studer ◽  
R Poulin
Keyword(s):  
Life Cycle ◽  
Seasonal Dynamics ◽  
Intertidal Mudflat

Seasonal Dynamics and Microhabitat Distribution ofUrastoma cyprinaeinMytilus galloprovincialis: Implications for Its Life Cycle

2010 ◽  
Vol 29 (1) ◽  
pp. 187-192 ◽  
Author(s):  
Celia Crespo-González ◽  
Helena Rodríguez-Domínguez ◽  
Paula Segade ◽  
Raúl Iglesias ◽  
Cristina Arias ◽  
...  
Keyword(s):  
Life Cycle ◽  
Seasonal Dynamics ◽  
Microhabitat Distribution

scholarly journals Seasonal dynamics of extracellular polymeric substances (EPS) in surface sediments of a diatom-dominated intertidal mudflat (Marennes–Oléron, France)

2014 ◽  
Vol 92 ◽  
pp. 26-35 ◽  
Author(s):  
Guillaume Pierre ◽  
Jean-Michel Zhao ◽  
Francis Orvain ◽  
Christine Dupuy ◽  
Géraldine L. Klein ◽  
...  
Keyword(s):  
Seasonal Dynamics ◽  
Extracellular Polymeric Substances ◽  
Surface Sediments ◽  
Intertidal Mudflat

Seasonal dynamics and life cycle of Heterotrissocladius marcidus (Diptera: Chironomidae) in high altitude lakes (High Tatra Mts, Slovakia)

Biologia ◽  
2015 ◽  
Vol 70 (7) ◽  
Author(s):  
Katarína Goffová ◽  
Peter Bitušík ◽  
Zuzana Čiamporová-Zatóvičová ◽  
Dana Bukvová ◽  
Ladislav Hamerlík
Keyword(s):  
Life Cycle ◽  
Seasonal Dynamics ◽  
Seasonal Changes ◽  
Alpine Lakes ◽  
Early Summer ◽  
Larval Abundance ◽  
Tatra Mountains ◽  
Tatra Mts ◽  
Summer Decline ◽  
High Tatra Mountains

AbstractWe estimated the seasonal dynamics and life cycle of the chironomid Heterotrissocladius marcidus (Walker, 1856) in three alpine lakes in the High Tatra Mountains (Central Europe). H. marcidus had univoltine cycle in all lakes surveyed and seasonal changes of density showed an early summer and an autumn peak interrupted by a mid-summer decline of larval abundance. Our results indicate that phenology of H. marcidus is sensitive to thermal regime and local differences in lake water temperature can lead to differences of the life history within the same population

scholarly journals Mud, microbes, and macrofauna: seasonal dynamics of the iron biogeochemical cycle in an intertidal mudflat

2020 ◽  
Author(s):  
Jacob P. Beam ◽  
Sarabeth George ◽  
Nicholas R. Record ◽  
Peter D. Countway ◽  
David T. Johnston ◽  
...  
Keyword(s):  
Organic Matter ◽  
Microbial Community ◽  
Seasonal Dynamics ◽  
Solid Phase ◽  
Nutrient Release ◽  
Coastal Sediments ◽  
Biogeochemical Cycle ◽  
Intertidal Mudflat ◽  
Iron Cycling ◽  
Natural Ecosystems

AbstractMicroorganisms and burrowing animals exert a pronounced impact on the cycling of redox sensitive metals in coastal sediments. Sedimentary metal cycling is likely controlled by seasonal processes including changes in temperature, animal feeding behavior due to food availability, and availability of organic matter in sediments. We hypothesized that the iron biogeochemical cycle and associated sedimentary microbial community will respond to seasonal changes in a bioturbated intertidal mudflat. In this study, we monitored the spatiotemporal dynamics of porewater and highly reactive solid phase iron with the corresponding prokaryotic and eukaryotic sedimentary microbial communities over one annual cycle from November 2015 to November 2016. Continuous and seasonally variable pools of both porewater Fe(II) and highly reactive iron (FeHR) were observed throughout the season with significant increases of Fe(II) and FeHR in response to increased sediment temperature in summer months. Maximum concentrations of Fe(II) and FeHR were predominantly confined to the upper 5 cm of sediment throughout the season. Iron-oxidizing and -reducing microorganisms were present and stable throughout the season, and exhibited strong depth-dependent stratification likely due to availability of Fe(II) and FeHR pools, respectively. Otherwise, the community was dominated by Deltaproteobacteria, which are involved in sulfur and potentially iron cycling, as well as Gammaproteobacteria and Bacteroidetes. The microbial community was relatively stable throughout the seasonal cycle, but showed strong separation with depth, probably driven by changes in oxygen availability and organic matter. The relative abundance of diatoms revealed a noticeable seasonal signature, which we attribute to spring and fall blooms recorded in the sediments. Macro-, meio, and microfauna were detected throughout the season with some seasonal variations that may influence sedimentary iron transformations by active microbial grazing. The seasonal dynamics of the sedimentary iron cycle are controlled by numerous, interdependent processes, with macrobiota-microbiota relationships and depth stratification comprising primary components. Deciphering these processes in natural ecosystems is essential to understand how they might respond to future environmental perturbations, such as anthropogenic nutrient release to coastal systems.

Study of the Seasonal Dynamics, Life Cycle, and Host Specificity ofAmblyomma aureolatum(Acari: Ixodidae)

2004 ◽  
Vol 41 (3) ◽  
pp. 324-332 ◽  
Author(s):  
Adriano Pinter ◽  
Ricardo A. Dias ◽  
Solange M. Gennari ◽  
Marcelo B. Labruna
Keyword(s):  
Life Cycle ◽  
Host Specificity ◽  
Seasonal Dynamics

scholarly journals Seasonal dynamics of fish assemblages in an intertidal mudflat of Indian Sundarbans

2013 ◽  
Vol 77 (2) ◽  
pp. 301-311 ◽  
Author(s):  
Sumit Homechaudhuri ◽  
Atreyee Chaudhuri ◽  
Sudeshna Mukherjee
Keyword(s):  
Seasonal Dynamics ◽  
Fish Assemblages ◽  
Intertidal Mudflat ◽  
Indian Sundarbans

scholarly journals Mud, Microbes, and Macrofauna: Seasonal Dynamics of the Iron Biogeochemical Cycle in an Intertidal Mudflat

2020 ◽  
Vol 7 ◽  
Author(s):  
Jacob P. Beam ◽  
Sarabeth George ◽  
Nicholas R. Record ◽  
Peter D. Countway ◽  
David T. Johnston ◽  
...  
Keyword(s):  
Seasonal Dynamics ◽  
Biogeochemical Cycle ◽  
Intertidal Mudflat
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