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| 1 | Spatial structure and seasonal changes of nekton assemblages in the Taiwan Strait显示文摘The Taiwan Strait is a transition zone between the East China Sea and the South China Sea with unique hydrology and a geographical environment that creates special marine community features.To analyze the spatial structure and seasonal changes of the nekton assemblages in the Taiwan Strait,seasonal experimental trawl surveys were conducted during 2006–2007.The results showed that there were two assemblages in the area with different sets of species,and the average similarity within each group varies between 39.38% and 74.20%.By using multivariate statistical analysis and analyzing the distribution of dominant species,we found that the structures of the assemblages had obvious seasonal variation.The middle region from the Putian transect to the Xiamen transect could be considered a mixing area for the two assemblages.The analysis of the relationship between species assemblages and environmental factors indicated that temperature was the most important factor affecting the community structure in cold seasons,and 22.5°C and 17°C could be considered dividing lines for spring and winter,respectively.In warm seasons,the most important factor was water depth,but the relationship with depth was not as significant,with a correlation between 0.264 and 0.399.The seasonal changes of nekton assemblages basically reflected the dynamic currents in the Taiwan Strait.The south coastal assemblage extended to nearly the entire area of the Taiwan Strait along with a strong and intense warm current that shrinks in spring and winter when the southward intrusion of the cold Zhejiang-Fujian coastal current becomes stronger.The impact of shortterm and long-term environmental changes,such as extreme weather,global warming and human activity on nekton assemblages,had been recognized but need further research.Our study on nekton assemblages could be used as a baseline for measuring future changes. | SONG Puqing LIN Longshan LI Yuan ZHONG Zhihui | 2016 | Acta Oceanologica Sinica2016，35，6： | 3 |
| 2 | Composition of fish species in the Bering and Chukchi Seas and their responses to changes in the ecological environment显示文摘Based on trawl surveys in the Bering Sea and Chukchi Sea during the 2010 Chinese National Arctic Research Expedition, fish biodiversity characteristics, such as fish composition, dominant species, biodiversity, and faunal characteristics were conducted. We also discussed the responses of fishes to the quick changes in Arctic climate. The results showed that a total of 41 species in 14 families were recorded in these waters. The dominant species were Hippoglossoides robustus, Boreogadus saida, Myoxocephalus scorpius, Lumpenus fabricii, and Artediellus scaber. There were 35 coldwater species, accounting for 85.37%, and six cold temperate species, occupying 14.63%. The habitat types of fish could be grouped as follows: 35 species of demersal fishes, five benthopelagic fishes, and one pelagic fish. The Shannon–Wiener diversity index(H)(range between 0 and 2.18, 1.21 on average) was not high, and descended from south to north. Climate change has caused some fishes to shift along their latitudinal and longitudinal distribution around the Arctic and Subarctic areas, and this could lead to the decline of Arctic fishery resources. | LIN Longshan CHEN Yongjun LIAO Yunchih ZHANG Jing SONG Puqing YU Xingguang WU Risheng SHAO Kwang-tsao | 2014 | Acta Oceanologica Sinica2014，33，6： | 3 |
| 3 | Advances in Chinese Arctic and subarctic research in marine biology and ecology with emphasis on the Pacific Arctic sector显示文摘The Arctic is one of the most sensitive regions that respond through feedback to global climate changes. Climatic, hydrological and ecological changes in the Arctic are clear evidence of global warming. In 2012 and 2014, the 5 th and 6 th Chinese National Arctic Research Expeditions undertook studies in the Bering Sea, the Arctic Ocean(including the Chukchi Sea), and the Norwegian Sea. These studies provided us with a better understanding of the marine biology and ecology in the Arctic and subarctic regions, particularly in the Pacific Arctic sector. Rapid changes observed in the Arctic environment include the shrinking of cold-water masses in the Bering Sea in the summer, and elevated water temperatures promoting phytoplankton blooms, leading to an increase in phytoplankton transferred to higher trophic levels. As a result, the transfer efficiency of organic matter toward the bottom weakened, leading to a reduction in benthic biomass. This is consistent with expectations that the overall carbon and energy flux will ultimately switch from the dominant mode of sea ice–algae–benthos to one of phytoplankton–zooplankton. Influenced by Pacific water inflow, fluvial runoff and melting sea ice, the Chukchi Sea exhibited different responses to various environmental changes. Interactions between water masses led to other interannual ecological shifts. With the increase in sea ice melt and sunlight in the central region of the Arctic Ocean, the relative abundance of heterotrophic bacteria is expected to increase, and play a vital role in the Arctic microbial loop. | LI Hai LIN Longshan SONG Puqing LI Yuan ZHANG Ran LIN Heshan LIN Rongcheng HAO Qiang ZHANG Fang ZHANG Guangtao | 2017 | Advances in Polar Science2017，28，2： | 2 |
| 4 | Short-term mercury exposure affecting the development and antioxidant biomarkers of Japanese flounder embryos and larvae显示文摘 | Wei Huang Liang Cao Jinhu Liu Longshan Lin Shuozeng Dou | 2010 | Ecotoxicology and Environmental Safety2010，，8： | 1 |
| 5 | Fish diversity and molecular taxonomy in the Prydz Bay during the 29th CHINARE显示文摘In 2013, the 29th Chinese National Antarctic Research Expedition(CHINARE) prospected the Prydz Bay on the Antarctic continental shelf, and the Chinese R/V Xuelong icebreaker sampled all of the examined locations. The nature of Antarctic fish diversity in the high-latitude Prydz Bay is virtually unknown, and the accuracy of relevant estimates has not been established. Thus, it is necessary to evaluate this diversity and propose protective measures. In total, ninety-nine specimens were collected from various locations. To overcome uncertainties associated with identifying species based on morphology, DNA barcoding(COI gene) was employed to reconstruct phylogenetic relationships with delimited references from NCBI. Twenty-two species representing six families were unambiguously identified from a neighbor-joining(NJ) tree and barcoding gaps. With the morphological identification, thirteen species were identified correctly, five species were identified correctly at the genus level, and four species were identified at the close sister species level. Notothenioid dominance was not evident in the Prydz Bay, in contrast to other published studies. The low species diversity and catch biomass during this CHINARE were severely constrained by limited fishing methods and localized sites, which led to biased underestimation. Our analyses indicate that DNA barcoding is an effective tool for the identification of fish species in the Prydz Bay. The identification and distribution of Antarctic fish should be an integral component of understanding Antarctic fish biodiversity and biogeography, and large-scale studies are necessary for the further taxonomic identification of Antarctic fish. | LI Yuan ZHANG Liyan SONG Puqing ZHANG Ran WANG Liangming LIN Longshan | 2018 | Acta Oceanologica Sinica2018，37，8： | 1 |
| 6 | Composition and distribution of fish species collectedduring the fourth Chinese National Arctic Research Ex-pedition in 2010显示文摘There are awareness and concerns caused by the decreasing sea ice coverage around the Arctic and Antarctic due toeffects of climate change. Emphasis in this study was on rapid changes in Arctic sea ice coverage and its impacts on the marineecology during the fourth Chinese National Arctic Research Expedition in 2010. Our purpose was to establish a baseline of Arcticfish compositions, and consequent effects of climate change on the fish community and biogeography. Fish specimens were col-lected using a multinet middle-water trawl, French-type beam trawl, otter trawl, and triangular bottom trawl. In total, 36 tows werecarried out along the shelf of the Bering Sea, Bering Strait, and Chukchi Sea in the Arctic Ocean. In total, 41 fish species belongingto 14 families in 7 orders were collected during the expedition. Among them, the Scorpaeniformes, including 17 species, accountedfor almost one third of the total number (34.8%), followed by 14 species of the Perciformes (27.0%), 5 species of the Pleuronecti-formes (22.3%), and 2 species of the Gadiformes (15.4%). The top 6 most abundant species were Hippoglossoides robustus, Bore-gadus saida, Myoxocephalus scorpius, Lumpenus fabricii, Artediellus scaber, and Gymnocanthus tricuspis. Abundant species var-ied according to the different fishing methods; numbers of families and species recorded did not differ with the various fishingmethods; species and abundances decreased with depth and latitude; and species extending over their known geographic rangeswere observed during the expedition. Station information, species list, and color photographs of all fishes are provided. | LIN Longshan LIAO Yunchih ZHANG Jing ZHENG Senlin XIANG Peng YUXingguang WU Risheng SHAO Kwangtsao | 2012 | Advances in Polar Science2012，23，2： | 1 |
| 7 | Antibacterial and antiparasitic activities analysis of a hepcidinlike antimicrobial peptide from Larimichthys crocea显示文摘As an economically important marine fish,the large yellow croaker Larimichthys crocea suffered from marine white spot disease caused by the ectoparasite Cryptocaryon irritans in recent years.This disease not only could result in physiological damage,but also lead to secondary bacterial invasion.Reports indicated some AMPs(antimicrobial peptides)were of antiparasitic activity to C.irritans.Hepcidin-like(Lc-HepL)was one of the significant differential expression genes excavated from the transcriptome following a challenge with C.irritans.In this study,we characterized this AMP’s bioactivity based on the levels of mRNA and protein.After challenged by C.irritans,qRT-PCR showed Lc-HepL was significantly upregulated in six tissues,including gill,muscle,liver,head kidney and spleen during theront infection,trophont falling off,and secondary bacterial invasion stages,which implicated a role Lc-HepL played in the immune defense against C.irritans and secondary bacterial infection.Recombinant Lc-HepL(rLc-HepL)was induced and purified successfully.rLc-HepL exhibited antibacterial activity to certain bacteria in a dose-and time-dependent manners.Anti-C.irritans activity was explored for the first time and found it could cause the theronts membrane rupture and contents leakage.These results provided the first evidence that Lc-HepL had strong antiparasitic activity against marine fish ectoparasites C.irritans theronts.Together,data indicated that Lc-HepL might be an important component in the innate immune system against C.irritans and has the potential to be employed in future drug development. | Libing Zheng Yuan Li Jun Wang Ying Pan Jia Chen Weiqiang Zheng Longshan Lin | 2020 | Acta Oceanologica Sinica2020，39，10： | 1 |
| 8 | Morphological characteristics and DNA barcoding of Pampus echinogaster(Basilewsky, 1855)显示文摘The morphological similarities of Pampus fishes have led to considerable confusion in species-level identification,and no accurate information on neotype or DNA barcoding of Pampus echinogaster is available. Two hundred and seven specimens of P. echinogaster were collected from the coastal waters of Dandong, Dongying, Qingdao,Nantong, Zhoushan, Wenzhou, Changle, Taiwan, and Wakayama(Japan), from June 2010 to April 2013. The diagnostic characteristics of P. echinogaster are as follows: dorsal fin VIII-XI-43–51, anal fin V-VIII-43–49, pectoral fin 22–27, caudal fin 19–22, pelvic fin absent; first gill rakers sparse, slender(pointed), 3–4+12–16=15–20; vertebrae39–41; transverse occipital canal on top of head moderately small, wavy ridges not reaching upper origin of pectoral fin; ventral branch of lateral line canal spare, shorter than dorsal branch of lateral line canal. By combining congener sequences of the cytochrome oxidase I(COI) gene from Gen Bank, two absolute groups were detected among all specimens, which further indicated that two valid species were present based on genetic differences in amino acid sequences and the distance between the groups. The sequences of Group 1 can be regarded as DNA barcoding of P. echinogaster. The correct morphological redescription and DNA barcoding of P.echinogaster are presented here to provide a guarantee for efficient and accurate studies, a theoretical basis for classification, and enable appropriate fishery management and conservation strategies for the genus Pampus in the future. | LI Yuan ZHANG Yan GAO Tianxiang HAN Zhiqiang LIN Longshan ZHANG Xiumei | 2017 | Acta Oceanologica Sinica2017，36，12： | 0 |
| 9 | Otolith Microstructure Analysis Reveals Different Growth Histories of Japanese Sardine (Sardinops melanostictus) in the Oyashio Waters显示文摘After decades of low year classes,the stock of Japanese sardine(Sardinops melanostictus)has begun to recover since the mid-2000s.The hatch dates and otolith growth rates of age-0 juvenile sardine,which were collected in the subarctic Oyashio waters in autumn 2018,were determined from an otolith microstructure analysis.The sardines were hatched from late January to late April,while mostly in February and March.The otolith growth rate increased continuously up to 60 d after hatching and thereafter de-creased.The revealed growth rate in a crucial growth period is faster than that reported for juvenile sardines collected in the 1990s,which is coincided with the recent recovery trend of the sardine stock.Two groups with different hatch dates,growth histories,and migration routes were identified using unsupervised random forest clustering analysis.They were considered inshore and offshore migration individuals in accordance with recent researches.In the offshore group,a high proportion of sardine juveniles hatched late and grew faster in the Kuroshio-Oyashio transitional waters,a finding consistent with the hypothesis of growth-rate-dependent re-cruitment.This finding on the population composition and growth rate of juvenile sardine in the Oyashio waters can be a basis for an improved prediction of their survival and provides us with valuable information on the recruitment processes of this stock during the period of stock recovery. | LIU Chunlin ZHANG Chi TIAN Yongjun WANG Liangming LIN Longshan LI Yuan WATANABE Yoshiro | 2022 | Journal of Ocean University of China2022，21，1： | 0 |
| 10 | Chinese seventh Arctic scientific expedition显示文摘Chinese seventh Arctic scientific expedition began from Shanghai on July 11,2016,journeying through the Bering Sea—Chukchi Sea—Canada Basin area—submarine plateau of the Chukchi Sea—high latitudes Arctic Ocean—Mendeleyev Ridge and covered more than 13 000 n mile in 78 days.The distance travelled in floating ice area is more than 2 800 n mile and the northernmost point of | LIU Na KONG Bin LIN Lina HE Yan LIU Yanguang LIN Longshan ZHANG Tao CHEN Jianfang | 2017 | Acta Oceanologica Sinica2017，36，3： | 0 |
| 11 | Potential anticancer activity analysis of piscidin 5-like from Larimichthys crocea显示文摘Antitumor activity is one characteristic function of some certain antimicrobial peptides(AMPs)found in recent years.In the present study,we attempted to detect potential anticancer activity of a recombinant piscidin 5-like from Larimichthys crocea(r Lc-P5L)which owned widely antibacterial and strong antiparasitic activity in vitro.The light microscope observation indicated r Lc-P5L was of antitumor activity to He La cells,293 T cells and L929 cells.MTT assay showed the toxic sensitivity of r Lc-P5L to three tumor cell strains was 293 T>L929>He La.Scanning electron microscope(SEM)results showed r Lc-P5L behaved like a lytic peptide to cause damage on cells membrane of L929 cells by forming globular clusters,even pores at 60μmol/L,or degrading membrane to make it completely lose cytoskeleton structure at 80μmol/L;r Lc-P5L treatment also resulted in DNA degradation.Fluorescence observation results indicated r Lc-P5L could cause L929 cells at least two obvious changes:one is nucleus,nuclear chromatin condensed in the margin,nuclear volume became smaller and shrank to be out of shape,or lysed to be debris;the other is cytoskeleton,they became disordered and polarized to make cells atrophic shapes,or even lysed to be debris.In summary,r Lc-P5L owned potential anticancer activity causing membrane structure damage and genome DNA degradation.Interestingly,treatment with different concentration of r Lc-P5L seemingly caused the similar but different changes,whether it indeed gave rise to cancer cells diverse death way,the further studies should be performed,and the detailed mechanisms were still need further explored. | Libing Zheng Jiayin Qiu Huihui Liu Changfeng Chi Longshan Lin | 2022 | Acta Oceanologica Sinica2022，41，3： | 0 |
| 12 | Early life history traits of chub mackerel Scomber japonicus in the Oyashio water revealed by otolith microstructure显示文摘Information on survival and growth during the early life stage is essential to understand the mechanism of interannual variations in fish recruitment.Chub mackerel Scomber japonicus is a commercially important pelagic fish widely distributed in the northwestern Pacific.Its catch showed large fluctuations with changes in distribution and migration under climate change and strong fishing.We determined the hatch dates and growth rates of young-of-the-year of chub mackerel through otolith microstructure using samples collected in the Oyashio water in autumn 2018.Results show that the ages of young chub mackerel ranged between 120 and 180 d,and the estimated hatch date lasted from midJanuary to late May with a peak from mid-March to mid-April.Average otolith daily increment width during the early life stages(from hatching to 25 d)showed an increasing trend.Chub mackerel grows slowly in the first 10 d,and then grows faster during the 10thto 25thd.Three groups with dissimilar growth histories and migration routes were identified using unsupervised random forest clustering analysis,but all eventually converge on the same nursery ground.The faster growth of young-of-the-year chub mackerel leads to better recruitment due to the hypothesis of growth-dependent mortality.Most chub mackerels hatched in March and April,the spawning period is longer and earlier,which could lead to strong year classes.These findings on population composition and life history traits of young-of-the-year of chub mackerel provide valuable information on its recruitment processes during the period of stock recovery. | Xiaolu LI Chi ZHANG Yongjun TIAN Longshan LIN Shigang LIU | 2023 | Journal of Oceanology and Limnology2023，41，6： | 0 |
| 13 | Levels and patterns of genetic variation in Pampus minor:Assessment of a mitochondrial DNA control region sequence显示文摘Pampus minor is an important commercial fish.Due to the similarity of external morphological characteristics among the genus Pampus species,P.minor has often been identified as the juvenile group of both P.cinereus and P.argenteus.While little genetic background on this species is known,this study was based on control region sequences and provided the first evaluation of the genetic signature of 264 individuals of P.minor from 11 populations along the coasts of China and Malaysia.The results indicate high genetic haplotype diversity and low nucleotide diversity in this species.Additionally,two differentiated haplotype lineages were identified in the P.minor populations.However,phylogenetic structures corresponding to the geographical locations were unable to be established.Analysis of molecular variance identified a vast majority of the genetic variation occurring within populations.F-statistic test value(FST)of pairwise indicated that great differences existed between the Chinese and Malaysian P.minor populations.For the Chinese populations,the genetic differences were insignificant with the exception of the Xiamen population,which is a marginal population.During the late Pleistocene,a population expansion of P.minor occurred.These expanded populations originated from the glacial refugium in the South China Sea and then rapidly occupied and adapted to their new habitat.The results of this study provide genetic information for ensuring the protection and management of P.minor resources. | Yuan Li Liyan Zhang ling Zhang Cheng Liu Longshan Lin | 2021 | Acta Oceanologica Sinica2021，40，4： | 0 |
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