Larval fish assemblages in the Taiwan Strait, western North Pacific: linking with monsoon-driven mesoscale current system

2012 ◽  
Vol 21 (2-3) ◽  
pp. 125-147 ◽  
Author(s):  
HUNG-YEN HSIEH ◽  
WEN-TSENG LO ◽  
LONG-JING WU ◽  
DONG-CHUNG LIU
Keyword(s):  
North Pacific ◽  
Western North Pacific ◽  
Fish Assemblages ◽  
Larval Fish ◽  
Current System ◽  
Taiwan Strait ◽  
The Taiwan Strait

scholarly journals Interannual variability of larval fish assemblages associated with water masses in winter in the Taiwan Strait during 2007–2013

2021 ◽  
Author(s):  
Yu-Kai Chen ◽  
Chia-Yi Pan ◽  
Yi-Chen Wang ◽  
Hsiu-Ju Tseng ◽  
Bo-Kun Su ◽  
...  
Keyword(s):  
Fish Assemblages ◽  
Larval Fish ◽  
Taiwan Strait ◽  
Assemblage Structure ◽  
Sea Surface ◽  
Coastal Current ◽  
Annual Variations ◽  
Frontal Zones ◽  
The Taiwan Strait

AbstractIn this study, the interannual variations of ichthyoplankton assemblages in the Taiwan Strait (TS) during the winters of 2007–2013 were determined. The cold China Coastal Current (CCC) and Mixed China Coastal Water (MCCW) intruded into the TS and impinged with the warm Kuroshio Branch Current (KBC) with annual variations. Consequently, the ichthyoplankton community in the TS was mainly structured into two assemblages characterized by differing environmental conditions. The composition of the warm KBC assemblage was relatively stable and was characterized by Diaphus B and Bregmaceros spp. By contrast, the cold MCCW assemblage demonstrated considerable variations over the years, with demersal Gobiidae and Scorpaenidae families considered the most representative. In addition, Benthosema pterotum and Trichiurus spp. were common in both KBC and MCCW assemblages. The distribution of the KBC assemblage demonstrated sharp boundaries in the frontal zones, whereas changes in the assemblage structure between the frontal zones were gradual for the MCCW assemblage, particularly when demersal taxa were dominant. Sea surface temperature and salinity were most strongly associated with variability in the assemblage structure during the study period. Thus, this paper provides a better understanding of long-term larval fish dynamics during winter in the TS.

scholarly journals Comparison of larval fish assemblages between during and after northeasterly monsoon in the waters around Taiwan, western North Pacific

2010 ◽  
Vol 32 (7) ◽  
pp. 1079-1095 ◽  
Author(s):  
W. T. Lo ◽  
H. Y. Hsieh ◽  
L. J. Wu ◽  
H. B. Jian ◽  
D. C. Liu ◽  
...  
Keyword(s):  
North Pacific ◽  
Western North Pacific ◽  
Fish Assemblages ◽  
Larval Fish

scholarly journals Large Increasing Trend of Tropical Cyclone Rainfall in Taiwan and the Roles of Terrain

2013 ◽  
Vol 26 (12) ◽  
pp. 4138-4147 ◽  
Author(s):  
Chih-Pei Chang ◽  
Yi-Ting Yang ◽  
Hung-Chi Kuo
Keyword(s):  
Global Warming ◽  
Tropical Cyclone ◽  
North Pacific ◽  
Western North Pacific ◽  
Southwest Monsoon ◽  
Steering Flow ◽  
Terrain Effects ◽  
Typhoon Center ◽  
The Taiwan Strait ◽  
In The Beginning

Abstract Taiwan, which is in the middle of one of the most active of the western North Pacific Ocean’s tropical cyclone (TC) zones, experienced a dramatic increase in typhoon-related rainfall in the beginning of the twenty-first century. This record-breaking increase has led to suggestions that it is the manifestation of the effects of global warming. With rainfall significantly influenced by its steep terrain, Taiwan offers a natural laboratory to study the role that terrain effects may play in the climate change of TC rainfall. Here, it is shown that most of the recently observed large increases in typhoon-related rainfall are the result of slow-moving TCs and the location of their tracks relative to the meso-α-scale terrain. In addition, stronger interaction between the typhoon circulation and southwest monsoon wind surges after the typhoon center moves into the Taiwan Strait may cause a long-term trend of increasing typhoon rainfall intensity, which is not observed before the typhoon center exits Taiwan. The variation in the location of the track cannot be related to the effects of global warming on western North Pacific TC tracks reported in the literature. The weaker steering flow and the stronger monsoon–TC interaction are consistent with the recently discovered multidecadal trend of intensifying subtropical monsoon and tropical circulations, which is contrary to some theoretical and model projections of global warming. There is also no evidence of a positive feedback between global warming–related water vapor supply and TC intensity, as the number of strong landfalling TCs has decreased significantly since 1960 and the recent heavy rainfall typhoons are all of weak-to-medium intensity.

Influence of monsoon-driven hydrographic features on siphonophore assemblages in the Taiwan Strait, western North Pacific Ocean

2013 ◽  
Vol 64 (4) ◽  
pp. 348 ◽  
Author(s):  
Hung-Yen Hsieh ◽  
Shwu-Feng Yu ◽  
Wen-Tseng Lo
Keyword(s):  
Western North Pacific ◽  
North Pacific Ocean ◽  
Distribution Patterns ◽  
Common Species ◽  
Taiwan Strait ◽  
Zooplankton Biomass ◽  
Dynamic Nature ◽  
The North ◽  
Hydrographic Features ◽  
The Taiwan Strait

The spatial patterns of siphonophores were analysed in relation to local hydrographic features during two different monsoon seasons (the north-easterly monsoon in winter v. the south-westerly monsoon in summer) in the Taiwan Strait. Forty-eight species were identified, with five types of calycophoran siphonophores (Lensia subtiloides, Chelophyes appendiculata, Chelophyes contorta, Bassia bassensis, and Diphyes chamissonis) being most common in both seasons. Significantly higher abundances of four of the five common species were recorded in summer than in winter. Differences in the siphonophore species compositions were also observed between the northern and southern part of Taiwan Strait, with significantly higher diversity occurring in the southern waters. The distribution patterns of siphonophore assemblages were closely linked to the hydrographic features, influenced by the dynamic nature of the currents in the study area, with temperature, salinity and zooplankton biomass being the three most important factors.

scholarly journals Larval fish assemblages in two nearshore areas of the Humboldt Current System during autumn-winter in northern Chile

2018 ◽  
Vol 53 ◽  
pp. 63 ◽  
Author(s):  
Lissette D. Paredes ◽  
Mauricio F. Landaeta ◽  
M. Teresa González
Keyword(s):  
Fish Assemblages ◽  
Larval Fish ◽  
Fish Larvae ◽  
Current System ◽  
Ekman Transport ◽  
Northern Chile ◽  
Spatial And Temporal Patterns ◽  
Humboldt Current ◽  
Engraulis Ringens ◽  
Humboldt Current System

This paper presents an analysis of spatial and temporal patterns in the fish larvae composition of two geographically adjacent nearshore areas within the Humboldt Current System (HCS), northern Chile. Five surveys were performed at Isla Santa María (ISM) and Punta Coloso (COL), Mejillones Peninsula. Ichthyoplankton were collected every 15 days in 2014 during the austral autumn-winter (May to August). A total of 412,410 fish larvae belonging to 36 taxa were identified, a high abundance compared with other HCS regions. Data also revealed similarities in species recorded compared with central Chile as well as differences compared with central Peru; a number of families were shared between these HCS regions and other systems (e.g., Canarias Current System). ISM was dominated by intertidal-subtidal species (e.g., Helcogrammoides cunninghami), while Engraulis ringens was most abundant at COL. Several species were positively correlated with dissolved oxygen (e.g., Auchenionchus microcirrhis), as well as temperature and Ekman transport (e.g., Sebastes oculatus), while the presence of others is negatively related to the same environmental parameters (e.g., Graus nigra). Results suggest that larvae differently utilize these two areas as a refuge or for feeding, and that adults might be coupling their spawning periods with short-term oceanographic features. Larval fish assemblages of nearshore areas in northern Chile are described here for the first time and highlight the important role of these two areas in the early developmental stages of fish species.

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