Spatio-temporal distribution of fish in Boryeong coastal marine ranching area using acoustics

2017 ◽  
Vol 10 (1) ◽  
pp. 38-44
Author(s):  
Ah-Rim KANG ◽  
Chang-Jue LEE ◽  
Eun-A YOON ◽  
Doo-Jin HWANG
Keyword(s):  
Temporal Distribution ◽  
Coastal Marine ◽  
Spatio Temporal ◽  
Distribution Of Fish

Monitoring the spatio-temporal distribution of fish in Pohang-Namgu marine ranching area using acoustic survey

2019 ◽  
Vol 12 (1) ◽  
pp. 8-13
Author(s):  
Min-Seok KIM ◽  
Jun-Woo HWANG ◽  
Eun-Bi MIN ◽  
Eun-A YOON ◽  
Doo-Jin HWANG
Keyword(s):  
Temporal Distribution ◽  
Acoustic Survey ◽  
Spatio Temporal ◽  
Distribution Of Fish

scholarly journals HR3DHG version 1: modelling the spatio-temporal dynamics of mercury in the Augusta Bay (southern Italy)

2019 ◽  
Author(s):  
Giovanni Denaro ◽  
Daniela Salvagio Manta ◽  
Alessandro Borri ◽  
Maria Bonsignore ◽  
Davide Valenti ◽  
...  
Keyword(s):  
Total Mercury ◽  
Southern Italy ◽  
Temporal Dynamics ◽  
Temporal Distribution ◽  
Reaction Model ◽  
Diffusion Reaction ◽  
Coastal Marine ◽  
Spatio Temporal ◽  
Marine Areas ◽  
Dissolved Mercury

Abstract. The biogeochemical dynamics of Hg, and specifically of its three species Hg0, HgII, and MeHg (elemental, inorganic, and organic, respectively) in the marine coastal area of Augusta Bay (southern Italy) have been explored by the high resolution 3D Hg (HR3DHG) model, namely an advection-diffusion-reaction model for the dissolved mercury in the seawater compartment coupled with i) a diffusion-reaction model for dissolved mercury in the pore water of sediments and ii) a sorption/de-sorption model for total mercury in the sediments. The spatio-temporal variability of dissolved and total mercury concentration both in seawater ([HgD] and [HgT]) first layers of bottom sediments ([HgsedD] and [HgsedT]), and the Hg fluxes at the boundaries of the 3D model domain have been theoretically reproduced, showing an excellent agreement with the experimental data, collected in multiple field observations during six different oceanographic cruises. The mass-balance of the different Hg species in seawater has been calculated for the Augusta Harbor, improving previous estimations. The HR3DHG model includes modules that can be implemented for specific and detailed exploration of the effects of climate change on the spatio-temporal distribution of Hg in highly contaminated coastal-marine areas.

scholarly journals Plankton in waters adjacent to the Laje de Santos state marine conservation park, Brazil: spatio-temporal distribution surveys

2017 ◽  
Vol 65 (4) ◽  
pp. 564-575 ◽  
Author(s):  
Marília Bueno ◽  
Samantha Fernandes Alberto ◽  
Renan de Carvalho ◽  
Tânia Marcia Costa ◽  
Áurea Maria Ciotti ◽  
...  
Keyword(s):  
Temporal Distribution ◽  
Taxonomic Composition ◽  
Marine Conservation ◽  
Zooplankton Biomass ◽  
Adjacent Area ◽  
Coastal Marine ◽  
Spatio Temporal ◽  
Term Monitoring

Abstract The coastal marine plankton plays a major role in ecosystem functioning by linking pelagic and benthonic environments through energy fluxes. Understanding the dynamic of planktonic organisms is also crucial for conservation and management purposes. Plankton was sampled at ten sites in the waters of the PEMLS and the adjacent area, on four different occasions through 2013 and 2015 in order to identify key planktonic groups and protocols for long-term monitoring. Ninety taxa of zooplanktonic organisms were found with holoplanktonic copepods and cladocerans dominating samples. Zooplankton biomass, mortality and taxonomic composition varied both in space and time. Surface chlorophyll-a concentrations varied spatio-temporally. A protocol for monitoring the plankton of the waters in and adjacent to the PEMLS is suggested based on biomass and mortality of zooplankton and biomass of phytoplankton using periodically in situ calibrated ocean color satellite imagery.

Spatio‐temporal distribution of fish in the Kakanui River estuary, South Island, New Zealand

1997 ◽  
Vol 31 (1) ◽  
pp. 103-118 ◽  
Author(s):  
D. J. Jellyman ◽  
G. J. Glova ◽  
P. M. Sagar ◽  
J. R. E. Sykes
Keyword(s):  
New Zealand ◽  
River Estuary ◽  
Temporal Distribution ◽  
Spatio Temporal ◽  
Distribution Of Fish

scholarly journals Spatio-temporal distribution of fish larvae in relation to ontogeny and water quality in the oligohaline zone of a North Brazilian estuary

2013 ◽  
Vol 13 (3) ◽  
pp. 55-63 ◽  
Author(s):  
Valérie Sarpedonti ◽  
Érica Moema Silva da Anunciação ◽  
Adriana Oliveira Bordalo
Keyword(s):  
Larval Fish ◽  
Fish Larvae ◽  
Temporal Distribution ◽  
Capital City ◽  
Rainy Period ◽  
Larval Distribution ◽  
Spatio Temporal ◽  
The City ◽  
Urban Activity ◽  
Distribution Of Fish

Larval fish assemblage in Guajará Bay was studied through four quarterly field campaigns and discussed in relation to individuals' development stages and exposure to contaminants poured out by the Pará State Capital City, Belém. Larval densities were low and diversity extremely poor with a strong dominance of clupeids, engraulids and, to a lower extent, sciaenids. The main spawning season was registered at the onset of the rainy period. Pre-flexion and flexion clupeiforms remained in the farmost stations from the city while post-flexion larvae were found near urban activity centres. Unlikely, pre-flexion and flexion sciaenids were scattered along the city waterfront. Post-flexion larvae were rare; it is suggested that sciaenids use the bay as a transitory route between their spawning grounds and more distant nursery grounds. The waters around the city of Belém showed signs of contamination. However, based on the literature, Guajará Bay environmental quality at the time of the study was suitable for fish larvae life. Nitrate with pH best explained larval distribution.

Monitoring the spatio-temporal distribution of fish in Ulju marine ranching area using hydroacoustics

2018 ◽  
Vol 11 (1) ◽  
pp. 31-35
Author(s):  
Eun-Chan LEE ◽  
Eun-Bi MIN ◽  
Eun-A YOON ◽  
Doo-Jin HWANG
Keyword(s):  
Temporal Distribution ◽  
Spatio Temporal ◽  
Distribution Of Fish

Spatio-temporal distribution of fish in the Pengxi River arm of the Three Gorges reservoir

2012 ◽  
Vol 32 (6) ◽  
pp. 1734-1744 ◽  
Author(s):  
任玉芹 REN Yuqin ◽  
陈大庆 CHEN Daqing ◽  
刘绍平 LIU Shaoping ◽  
段辛斌 DUAN Xinbin ◽  
李世健 LI Shijian ◽  
...  
Keyword(s):  
Three Gorges Reservoir ◽  
Temporal Distribution ◽  
Three Gorges ◽  
The Three Gorges Reservoir ◽  
The Three Gorges ◽  
Spatio Temporal ◽  
Distribution Of Fish
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