Growth dynamics of the deep-water Asian eelgrass, Zostera asiatica, in the eastern coastal waters of Korea

2016 ◽  
Vol 51 (4) ◽  
pp. 613-625
Author(s):  
Jung-Im Park ◽  
Jong-Hyeob Kim ◽  
Su Hyun Park
Keyword(s):  
Deep Water ◽  
Coastal Waters ◽  
Growth Dynamics

ANALYSIS OF THE FUNCTIONING OF MARINE ECOSYSTEMS ON CHANGING THE PARAMETERS OF THE BIOLUMINESCENCE FIELD ON THE CRIMEAN BLACK SEA SHELF

2017 ◽  
Author(s):  
Svetlana Rubtsova ◽  
Svetlana Rubtsova ◽  
Natalya Lyamina ◽  
Natalya Lyamina ◽  
Aleksey Lyamin ◽  
...  
Keyword(s):  
Black Sea ◽  
Field Intensity ◽  
Deep Water ◽  
Coastal Waters ◽  
Integrated Management ◽  
Abiotic Factors ◽  
Environmental Safety ◽  
The Black Sea ◽  
Intensity Increase ◽  
First Time

The concept of a new approach to environmental assessment is offered in the system of integrated management of the resource and environmental safety of the coastal area of the Black Sea. The studies of the season and daily changeability in the bioluminescence field in the Sevastopol coastal waters has been conducted. For the first time considerable differences in the bioluminescence field seasonal changes in the surface and deep water layers and the reasons conditioning this phenomenon have been shown, using a method of multidimensional statistical analysis. The bioluminescence field vertical profile change in the Black sea coastal waters in the autumn period at night has been studied. It has been shown that according to the character of bioluminescence parameters dynamics a water column can be divided into layers: upper (0 – 35 m) and deep water (36 – 60 m). It has been revealed that life rhythms of the plankton community are the main reason for the bioluminescence field intensity variability. It has been revealed that 14-hour periodicity of the bioluminescence field is related to the changes in light and its variations with 2,5…4,5 hours are conditioned by planktonts endogenous daily rhythms. And here biotic factors effect mostly periodicity of the bioluminescence field intensity increase and fall down at the dark time of the day. Abiotic factors are of less importance in circadian rhythmic of the bioluminescence field in the neritic zone.

Deep-Submergence Archaeology

2012 ◽  
Author(s):  
Shelley Wachsmann
Keyword(s):  
Deep Water ◽  
Coastal Waters ◽  
Gradual Transition ◽  
Cultural Resources ◽  
Archaeological Excavations

Coastal waters represent the greatest danger to ships and seafarers, as ships are most commonly lost at the intersection of water and shore. Ships sinking in deep water undergo a gradual transition. Deep-submergence archaeology refers to the archaeological study of cultural resources beyond the limits of traditional diving. The totality of archaeological exploration at great depths—discovering, recording, excavating, and recovering—requires function-specific tools. Deep Submergence Archaeological Excavations (DSAE) takes advantage of a remarkable existent toolkit, designed for a variety of oceanographic purposes other than the study of ancient shipwrecks. What is lacking at present is a comprehensive methodology for deepwater excavation. The ultimate goal of DSAE is to develop the technologies and the skills that permit expeditions to excavate and safely raise the contents and hull of an entire ship for conservation, study, and display.

Growth dynamics of the seagrass Halophila nipponica, recently discovered in temperate coastal waters of the Korean peninsula

2011 ◽  
Vol 159 (2) ◽  
pp. 255-267 ◽  
Author(s):  
Seung Hyeon Kim ◽  
Young Kyun Kim ◽  
Sang Rul Park ◽  
Wen-Tao Li ◽  
Kun-Seop Lee
Keyword(s):  
Coastal Waters ◽  
Korean Peninsula ◽  
Growth Dynamics

XIV.—New Records of Polychætes from Scottish Coastal and Offshore Waters

1960 ◽  
Vol 67 (4) ◽  
pp. 351-362 ◽  
Author(s):  
A. D. McIntyre
Keyword(s):  
North Sea ◽  
Deep Water ◽  
West Coast ◽  
Coastal Waters ◽  
East Coast ◽  
New Records ◽  
North West ◽  
The North ◽  
The North Sea

SynopsisFrom a faunistic survey in Scottish waters, concentrated mainly in the sea lochs of the north-west coast and in the deep water in the North Sea off the east coast, thirty-two species of polychætes are listed which have not previously been recorded from these areas. Seven of the species are new records for British coastal waters or for the North Sea.

scholarly journals Morphohistology and histopathology of the digestive organs of the deep-water fish greater forkbeard, Phycis blennoides

2020 ◽  
Vol 28 (2) ◽  
pp. 99-112 ◽  
Author(s):  
Zakia Alioua ◽  
Soumia Amira ◽  
Nesrine Semiane ◽  
Fatiha Zerouali-Khodja
Keyword(s):  
Digestive Tract ◽  
Deep Water ◽  
Coastal Waters ◽  
Anatomical Study ◽  
Commercial Fisheries ◽  
Morphometric Measurements ◽  
Histological Features ◽  
Digestive Organs ◽  
Water Fish ◽  
First Time

AbstractThe aim of this paper was to report on an examination of the digestive organs in the deep-water fish Phycis blennoides (Brünnich) from Algerian coastal waters. A total of 1,019 specimens (5.7–62.7 cm in total length) obtained from commercial fisheries were examined between December 2013 and May 2017. The anatomical study was conducted using morphometric measurements of different sections of the digestive tract of P. blennoides. The histological features of the digestive tract were examined in the esophagus, stomach, intestine, and pyloric cecum. They were compatible with carnivorous feeding behavior and confirmed by a low intestinal quotient (IQ = 0.72 ± 0.13). The histopathological assessment highlighted the hepatic steatosis and parasitic infestation in its intestine from Anisakis simplex, which also occurs in Algerian coastal waters. According to our knowledge, this paper reports for the first time the morphohistological analysis of the digestive tract of a Phycidae species in Africa and provides the first histopathological assessment of the digestive organs of the greater forkbeard in the southwestern Mediterranean Sea.

Variabilité interannuelle d'un indice d'intensité des remontées d'eau dans le secteur du cap Blanc (Mauritanie)

1985 ◽  
Vol 42 (12) ◽  
pp. 1969-1978 ◽  
Author(s):  
Robert Arfi
Keyword(s):  
Time Series ◽  
Deep Water ◽  
Coastal Waters ◽  
Water Mass ◽  
Initial Conditions ◽  
Trade Winds ◽  
Strong Activity ◽  
Northwest Africa ◽  
Progressive Return ◽  
Coastal Upwellings

The coastal waters along the Atlantic Sahara are characterized by intense hydrodynamic phenomena (upwellings, water mass alternations) throughout the year that deeply influence their productivity. Deep-water arrivals at surface levels are closely related to the local prevailing winds dominating all year long, the Northeast Trade winds. Working on a time series of 28 yr shows that far from being regular and constant during that period, the Trade winds were very variable. The coastal upwellings induced by these winds showed important intensity variations: after years of strong activity (1955–60) there was a period of minimal activity (1961–69), which was followed by a period of great irregularity (1970–82), showing a progressive return to the initial conditions. These important variations inducing deep hydrological consequences and modifications of water trophic potentialities can be related to the biological anomalies observed during the same time in the Northwest Africa fisheries.

scholarly journals Transient movements of a deep-water flatfish in coastal waters: Implications of inshore-offshore connectivity for fisheries management

2018 ◽  
Vol 55 (3) ◽  
pp. 1071-1081 ◽  
Author(s):  
Amanda N. Barkley ◽  
Aaron T. Fisk ◽  
Kevin J. Hedges ◽  
Margaret A. Treble ◽  
Nigel E. Hussey
Keyword(s):  
Fisheries Management ◽  
Deep Water ◽  
Coastal Waters

A NEW SPECIES OF AMPELISCA (CRUSTACEA: AMPHIPODA) FROM EASTERN NORTH AMERICA, WITH NOTES ON OTHER SPECIES OF THE GENUS

1963 ◽  
Vol 41 (6) ◽  
pp. 971-989 ◽  
Author(s):  
Eric L. Mills
Keyword(s):  
New Species ◽  
North America ◽  
Sibling Species ◽  
Deep Water ◽  
Coastal Waters ◽  
Eastern North America ◽  
Western Atlantic ◽  
Cape Hatteras ◽  
Two Generations ◽  
A New Species

Ampelisca vadorum is described from eastern North American coastal waters. It has been confused since 1903 with the European Ampelsca spinipes Boeck, but differs considerably in morphology and ecology. A. spinipes is redescribed and figured. A deep-water record of A. spinipes from Cabot Strait refers to A. spinimana Chevreux. "Intersexes" in A. vadorum are really subadult males. Two generations per year occur north of Cape Hatteras. A small undescribed sibling species occurs in the same areas. Ten other western Atlantic Ampelisca species are discussed briefly, and a key is given to all species of the area.

ANALYSIS OF THE FUNCTIONING OF MARINE ECOSYSTEMS ON CHANGING THE PARAMETERS OF THE BIOLUMINESCENCE FIELD ON THE CRIMEAN BLACK SEA SHELF

2017 ◽  
Author(s):  
Svetlana Rubtsova ◽  
Svetlana Rubtsova ◽  
Natalya Lyamina ◽  
Natalya Lyamina ◽  
Aleksey Lyamin ◽  
...  
Keyword(s):  
Black Sea ◽  
Field Intensity ◽  
Deep Water ◽  
Coastal Waters ◽  
Integrated Management ◽  
Abiotic Factors ◽  
Environmental Safety ◽  
The Black Sea ◽  
Intensity Increase ◽  
First Time

The concept of a new approach to environmental assessment is offered in the system of integrated management of the resource and environmental safety of the coastal area of the Black Sea. The studies of the season and daily changeability in the bioluminescence field in the Sevastopol coastal waters has been conducted. For the first time considerable differences in the bioluminescence field seasonal changes in the surface and deep water layers and the reasons conditioning this phenomenon have been shown, using a method of multidimensional statistical analysis. The bioluminescence field vertical profile change in the Black sea coastal waters in the autumn period at night has been studied. It has been shown that according to the character of bioluminescence parameters dynamics a water column can be divided into layers: upper (0 – 35 m) and deep water (36 – 60 m). It has been revealed that life rhythms of the plankton community are the main reason for the bioluminescence field intensity variability. It has been revealed that 14-hour periodicity of the bioluminescence field is related to the changes in light and its variations with 2,5…4,5 hours are conditioned by planktonts endogenous daily rhythms. And here biotic factors effect mostly periodicity of the bioluminescence field intensity increase and fall down at the dark time of the day. Abiotic factors are of less importance in circadian rhythmic of the bioluminescence field in the neritic zone.

Sign in / Sign up

Export Citation Format

Share Document