Two unrecorded penaeid shrimp species of the genus Parapenaeus (Decapoda, Dendrobranchiata) from Korean waters

Crustaceana ◽  
2018 ◽  
Vol 91 (11) ◽  
pp. 1375-1380
Author(s):  
Jung Nyun Kim ◽  
Jung Hwa Choi

Abstract Two Parapenaeus species, P. australiensis Dall, 1957 and P. fissurus (Spence Bate, 1881), collected from around Jeju Island and east of Busan, southern Korean waters, are briefly described here. Both species are newly recorded from Korean waters, with the former record representing a considerable range extension from the tropical western Pacific to the northern East China Sea. Distributional and morphological accounts of these species are presented.

2013 ◽  
Vol 70 (1) ◽  
pp. 11-23 ◽  
Author(s):  
Daphne Georgina Faria ◽  
Man-Duck Lee ◽  
Joon-Baek Lee ◽  
Juyun Lee ◽  
Man Chang ◽  
...  

Crustaceana ◽  
2018 ◽  
Vol 91 (10) ◽  
pp. 1157-1170
Author(s):  
Hui Yu Li ◽  
Lin Lin Yang ◽  
Jia Hua Cheng ◽  
Jian Zhong Ling

Abstract Length-weight relationships of various shrimp species were examined based on data from bottom trawl surveys from May 2014 to April 2015 in the East China Sea. A total of 2335 individuals belonging to Penaeidae and Solenoceridae were measured and weighed. Significant length-weight relationships were found for all species. The b-values of the length-weight relationships ranged from 2.0855 (Trachysalambria curvirostris) to 3.4808 (Metapenaeopsis barbata) with a mean value of 3.10 (±0.05). The differences in b-values between sexes and seasons were also examined. Whenever possible, b-values were compared for the species obtained both in this study and some of the species previously reported in other studies. Differences in the b-values for the same species in different areas suggest the influence of differences in environmental or habitat factors, including temperature and depth.


2020 ◽  
Vol 100 (7) ◽  
pp. 1079-1091
Author(s):  
Hyun Kyong Kim ◽  
Benny K. K. Chan ◽  
Sang-kyu Lee ◽  
Won Kim

AbstractThe coastline of the Korean Peninsula is influenced by three major oceanographic ecoregions, including the estuarine Yellow Sea ecoregion on the west coast, the warmer and saline East China Sea ecoregion on the south coast, and the cold East Sea ecoregion on the east coast. The influence of these marine ecoregions on the distribution of intertidal barnacles has not been extensively studied. The present study examines the biogeography of thoracican barnacles from intertidal and shallow subtidal zones, along the coasts of Korea. Twenty-one species in seven families were identified, including three species of coral-associated barnacles. Species composition varied significantly in the three marine ecoregions. Multivariate analysis showed barnacle assemblages were significant among the three ecoregions, although there are large overlaps of clusters between the Yellow Sea and East China Sea ecoregions. The estuarine species, Fistulobalanus albicostatus, occurred mainly in the Yellow Sea ecoregion; warm-water species, Tetraclita japonica, and sponge inhabiting barnacles Euacasta dofleini were observed in the East China Sea ecoregion; and cold-water species, Balanus rostratus and Perforatus perforatus, were found in the East Sea ecoregion. Four invasive barnacle species were recorded and the European barnacle Perforatus perforatus expanded its range northward from its recorded distribution nine years earlier. The cold-water species, Chthamalus dalli and Semibalanus cariosus, previously recorded in the East Sea ecoregion, were absent in the present survey. A trend of increasing seawater temperatures in Korean waters may have a significant impact on the distribution of cold-water species and enhance the northward invasion of P. perforatus.


2020 ◽  
Vol 8 (3) ◽  
pp. 157 ◽  
Author(s):  
Seong Hyeon Kim ◽  
Bok Kyoung Choi ◽  
Eung Kim

To investigate the behavioral characteristics of the water temperature inversion layer (TIL), we used data (KODC) from areas in the Northern East China Sea from 1995 to 2016. Water temperature and salinity surveys were conducted 8820 casts over 22 years. Of these, 1589 water temperature inversion layers were found, and the probability of occurrence was 18.0%. In the Gageo island, probability of TIL occurrence in winter was 25 times higher than in summer. On the other hand, in the south of Jeju Island, summer values were 3.7 times higher than winter values. A T–S diagram analysis shows the components of the water temperature inversion layers. Yellow Sea Cold Water was mainly found in the winter, while Jeju Warm Currents and Tsushima Warm Currents were found in summer. The correlation between the probability of the occurrence of a monthly water temperature inversion layer and the amount of seawater volume transported into the study area was analyzed. The correlation coefficient was higher than r = 0.8 in parts of southern Jeju Island. On the other hand, the correlation coefficient was r = −0.6 in the Gageo Island. The spatial correlation index for the seawater volume transport and the water temperature inversion layer is presented.


Sign in / Sign up

Export Citation Format

Share Document