scholarly journals Life History and Dispersal Pattern of the Polychaete Worm Neanthes japonica(Izuka) in the Nanakita River Estuary, Miyagi Prefecture.

1998 ◽  
Vol 59 (2) ◽  
pp. 125-146 ◽  
Author(s):  
Eisuke KIKUCHI
Keyword(s):  
Life History ◽  
River Estuary ◽  
Dispersal Pattern ◽  
Miyagi Prefecture ◽  
Nanakita River Estuary ◽  
Neanthes Japonica

Life History Aspects of the Hogchoker, Trinectes maculatus, in the Patuxent River Estuary, Maryland

1969 ◽  
Vol 10 (2) ◽  
pp. 104 ◽  
Author(s):  
W. L. Dovel ◽  
J. A. Mihursky ◽  
A. J. McErlean
Keyword(s):  
Life History ◽  
River Estuary ◽  
Patuxent River Estuary ◽  
Patuxent River

scholarly journals Life history and population dynamics of brackish water clam, Corbicula japonica, occurring in the Kikuchi River estuary

2019 ◽  
Vol 74 (1) ◽  
pp. 1-15
Author(s):  
Hiroaki TSUTSUMI ◽  
Misato TSUJI ◽  
Tomo TATEISHI ◽  
Tomohiro KOMORITA
Keyword(s):  
Population Dynamics ◽  
Life History ◽  
Brackish Water ◽  
River Estuary ◽  
Corbicula Japonica

A Field Experiment to Test the Importance of Estuaries for Chinook Salmon (Oncorhynchus tshawytscha) Survival: Short-Term Results

1988 ◽  
Vol 45 (8) ◽  
pp. 1366-1377 ◽  
Author(s):  
J. Stevenson Macdonald ◽  
Colin D. Levings ◽  
Carey D. McAllister ◽  
U. H. M. Fagerlund ◽  
J. R. McBride
Keyword(s):  
Transition Zone ◽  
Chinook Salmon ◽  
Oncorhynchus Tshawytscha ◽  
River Estuary ◽  
Dispersal Pattern ◽  
Estuarine Site ◽  
Fish Predators ◽  
Marine Site ◽  
River Estuarine ◽  
Seawater Challenge

In late April of 1983, 1984, and 1985, 140 000 marked chinook salmon (Oncorhynchus tshawytscha) smolts (2–4 g) were transported by helicopter from Quinsam Hatchery to four release sites near Campbell River, B.C. (river, estuarine, transition, and marine), in an experiment to test the importance of estuarine residency to chinook survival. At the marine site, fish were released directly into seawater. These fish had high cortisol levels and larger interrenal nuclear diameters than those at the estuarine site, indicating a transitory stress response to seawater exposure. Nevertheless, there was little direct mortality due to stress or osmoregulatory shock at any of the release sites. Marine-released fish were exposed to more bird and fish predators. Mortality of caged chinook was higher at the marine location than at all other sites despite seawater challenge tests indicating that the chinook were smolted and "ready for sea." Beach seine data obtained biweekly for 4 mo after the releases showed that fish released directly into marine waters rarely dispersed to the Campbell River estuary. Fish released immediately adjacent to the mouth of the estuary (transition zone) had the widest immediate dispersal pattern, with many of them returning to the estuary. Estuarine zone fish displayed the most restricted distribution. Fish released to the river and estuary remained in the sampling area for a longer period (34–47 d) than those released in the marine or transition zone (20–23 d).

scholarly journals Spatiotemporal dynamics of larval fish in a tropical estuarine mangrove: example of the Mahury River Estuary (French Guiana)

2018 ◽  
Vol 75 (2) ◽  
pp. 235-246 ◽  
Author(s):  
Yann Rousseau ◽  
Fabian Blanchard ◽  
Antoine Gardel
Keyword(s):  
Life History ◽  
French Guiana ◽  
Larval Fish ◽  
River Estuary ◽  
Life History Strategy ◽  
Temporal Variations ◽  
Freshwater Species ◽  
Mangrove Species ◽  
Structure And Dynamics ◽  
Tropical Estuarine

The present study focuses on the structure and dynamics of the ichthyoplankton community of the Mahury estuary (French Guiana) and the factors that influence them. Data were collected on three mangrove sites located in the inner, middle, and outer areas of the estuary. More than 45 000 larvae were collected, representing 31 families and 67 taxa. The community was numerically dominated by few species; Engraulidae was the most abundant family, followed by Gobiidae, Eleotridae, and Sciaenidae. As expected, the most abundant larval taxa were estuarine and mangrove species, with the addition of freshwater species in the inner area of the estuary and taxa with marine affinities in the outer area. The densities of most species were influenced by site more than by season. Temporal variations in the dominant species were influenced largely by their life history strategy, with a majority of the fish species spending their entire life history in mangroves and estuaries.

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