Zooplankton: pre-southwest and northeast monsoons of 1993 to 1994, from the North Arabian Sea

Kidwai, Samina; Amjad, Shahid

doi:10.1007/s002270050716

Cited by 18 publications

(8 citation statements)

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“…, 2010), or stratification of the water column (Franco‐Gordo et al. , 2002), but only a few have focused on a marine environment in which circulation patterns are strongly influenced by monsoon systems (Kidwai and Amjad, 2000, 2001; Hsieh et al. , 2005; Lo et al.…”

Section: Introductionmentioning

confidence: 99%

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

Hsieh

et al. 2012

Fisheries Oceanography

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This study, based on samples taken in seven cruises from February 2003 to November 2004, linked larval fish assemblages with mesoscale oceanographic features dominated by the monsoon‐driven current system in the Taiwan Strait. A total of 7753 specimens of larval fish were identified from our samples, belonging to 467 taxa in 112 families and 230 genera. Engraulidae, Myctophidae, Scombridae, Carangidae, and Gobiidae were the five most abundant families. Three larval fish assemblages were distinguished by association respectively with the China Coastal Current, Kuroshio Branch Current, and South China Sea Surface Current, and accordingly designated as the cold‐period northern Taiwan Strait (CNTS), southern Taiwan Strait (STS), and warm‐period northern Taiwan Strait (WNTS) assemblages. The composition of larval fish differed significantly between assemblages, with the CNTS being the most dissimilar assemblage, probably due to the presence of neritic/oceanic taxa in the STS and WNTS and primarily neritic‐associated taxa in the CNTS. The alternate intrusions of currents in the Taiwan Strait driven by seasonal monsoons play a pivotal role in the dispersal and community structure of larval fish. In addition, winter front turbulence and local topographic upwelling contributed to the increase in biological production; consequently resulting in high chlorophyll a concentrations and zooplankton biomass to provide abundant food for the survival of larval fish. The high correlation between the environmental variables and the larval fish assemblages offers the possibility to use the assemblages as indicators of the surface circulation in the Taiwan Strait and thereby improve our understanding of the ecosystems.

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Section: Introductionmentioning

confidence: 99%

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

Hsieh

et al. 2012

Fisheries Oceanography

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“…The results of earlier studies on analyses of data from the same cruises have reported that the distribution of zooplankton standing stock (biomass) was uneven and that the movement of these high-density patches corresponded to patterns of wind reversal (Kidwai and Amjad, 2000).…”

Section: Resultsmentioning

confidence: 95%

“…Fish larvae were one of the 12 most dominant groups in zooplankton samples collected during NASEER (North Arabian Sea Environment and Ecosystem Research) cruises, (Amjad et al, 1995;Kidwai et al, 1997;Kidwai and Amjad, 2000). The purpose of the present study was to document the abundance and distribution of fish larvae in the northwest Arabian Sea and briefly to investigate the relationship between biotic (abundance of fish larvae and zooplankton standing stock) and abiotic (temperature, salinity, wind speed, dissolved oxygen) parameters.…”

Section: Introductionmentioning

confidence: 98%

Abundance and distribution of ichthyolarvae from upper pelagic waters of the northwestern Arabian Sea during different monsoon periods, 1992–1994

Kidwai

2001

ICES Journal of Marine Science

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“…Relatively, low biomass was found in the southern region, with a few pockets of high biomass in the inshore waters. These high biomass pockets have resulted due to the patchiness of MSP, which is common in the Arabian Sea (Mathew et al, 1990;Kidwai and Amjad, 2000). The enhancement in MSP biomass in the northern region during the winter monsoon was obviously an outcome of high phytoplankton standing stock through convective mixing.…”

Section: Winter Monsoonmentioning

confidence: 99%

Re-evaluation of ‘paradox of mesozooplankton’ in the eastern Arabian Sea based on ship and satellite observations

Jyothibabu

Madhu

Habeebrehman

et al. 2010

Journal of Marine Systems

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In the central and eastern Arabian Sea (EAS), biomass and production of phytoplankton are known to vary spatially and seasonally whereas, biomass of mesozooplankton (MSP) is reported to be constant. This apparent contradiction has been called 'Arabian Sea Paradox'. However, it is important to note that the paradox of MSP is based on a very limited seasonal data (from 5-7 locations). Therefore, we reconsidered the paradox of MSP based on intensive in-situ observations at 39 -40 locations in the EAS. In agreement with the known seasonal difference in phytoplankton standing stock in the EAS, we analysed the MSP data in two ways using two-way nested ANOVA. In 'basin scale' analysis, MSP data were analysed from the EAS were pooled and seasonal and inshore -offshore variations were analysed for the entire region. In 'regional scale' analysis, MSP data were analysed separately for (a) northern region (north of 15°N) and (b) southern regions (15°N and south of it). Satellite data of chlorophyll a, SST and wind speed were also analysed to show the major differences in oceanographic features in the northern and southern EAS. The analyses showed prominently high chlorophyll a (av. 1mg m ) in the southern region during most of the year mainly due to thermohaline stratification. The MSP biomass was distributed almost in a similar way as that of phytoplankton stock with statistically significant spatial and seasonal variations in the northern and southern regions. In this paper, we review the 'paradox of MSP' and present clear and new evidences to show that this concept is not logically applicable for EAS.

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Zooplankton: pre-southwest and northeast monsoons of 1993 to 1994, from the North Arabian Sea

Cited by 18 publications

References 0 publications

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

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

Abundance and distribution of ichthyolarvae from upper pelagic waters of the northwestern Arabian Sea during different monsoon periods, 1992–1994

Re-evaluation of ‘paradox of mesozooplankton’ in the eastern Arabian Sea based on ship and satellite observations

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