scholarly journals The Characteristics and Spatio-temporal Distribution of Fish Schools during Summer in the Marine Ranching Area (MRA) of Yeosu using Acoustic Data

2014 ◽  
Vol 47 (3) ◽  
pp. 283-291 ◽  
Author(s):  
Eun-A Yoon ◽  
Doo-Jin Hwang ◽  
Ho-Sang Kim ◽  
Kyung-Seon Lee
Keyword(s):  
Temporal Distribution ◽  
Fish Schools ◽  
Acoustic Data ◽  
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

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

The spatial-temporal distribution of fish schools using echo-sounder in the marine ranching area of Yeosu

2014 ◽  
Vol 7 (1) ◽  
pp. 11
Author(s):  
Eun-A Yoon Yoon ◽  
Ayumi Takano ◽  
Seung-Bo Sim ◽  
Seung-Jae Lee ◽  
Doo-Jin Hwang
Keyword(s):  
Temporal Distribution ◽  
Fish Schools ◽  
Distribution Of Fish ◽  
Echo Sounder

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 SMALL PELAGIC FISH IN THE JAVA SEA

2017 ◽  
Vol 14 (1) ◽  
pp. 21
Author(s):  
Wijopriono Wijopriono
Keyword(s):  
Fuel Consumption ◽  
Temporal Distribution ◽  
Pelagic Fish ◽  
Small Pelagic Fish ◽  
Commercial Fish ◽  
Fish Schools ◽  
Java Sea ◽  
Spatio Temporal ◽  
The Rich ◽  
The Cost

Time spent in seeking fish schools and potential fishing areas is the main source of fuel consumption, and it is a significant factor in raising the cost of fishing operation. Therefore, knowledge of the distribution pattern lnd aggregations of commercial fish in space and time is of considerable financial value to the fishers anAlisnlng industry because it will assist them to reduce the time and fuel consumption of the boats in locating the rich fishing grounds.

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.

scholarly journals Spatial–Temporal Distribution of the Euphausiid Euphausia pacifica and Fish Schools in the Coastal Southwestern East Sea

Water ◽  
2022 ◽  
Vol 14 (2) ◽  
pp. 203
Author(s):  
Hyungbeen Lee ◽  
Junghwa Choi ◽  
Yangjae Im ◽  
Wooseok Oh ◽  
Kangseok Hwang ◽  
...  
Keyword(s):  
Spatial Distribution ◽  
Temporal Distribution ◽  
Detection Algorithm ◽  
East Sea ◽  
Acoustic Backscatter ◽  
Euphausia Pacifica ◽  
Temporal And Spatial Distribution ◽  
Fish Schools ◽  
Acoustic Data ◽  
Temporal And Spatial

The spatial and temporal distribution of euphausiid Euphausia pacifica and fish schools were observed along acoustic transects in the coastal southwestern East Sea. Two-frequency (38- and 120-kHz) acoustic backscatter data were examined from April to July 2010. A dB identification window (SV120–38) and school detection algorithm identified E. pacifica and fish schools in the acoustic backscatter, respectively. The E. pacifica was regularly observed in middle of southern waters, where phytoplankton was abundant during spring, and irregularly during summer, when phytoplankton was homogeneously distributed. Using the distorted-wave Born approximation model, the acoustic density of E. pacifica calculated was higher in spring (April: 75.9 mg m−2, May: 85.3 mg m−2) than in summer (June: 71.4 mg m−2, July: 54.1 mg m−2). The fish schools in the acoustic data tended to significantly increase from spring to summer. Although major fish species, such as anchovies and herring, fed on copepods and euphausiids in the survey area, the temporal and spatial distribution of E. pacifica was weakly correlated with the distribution of the fish schools. These findings aid in our understanding of the temporal and spatial distribution dynamics of euphausiids and fish schools in the food web of the coastal southwestern East Sea.

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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