Longshan Lin

• Third Institute of Oceanography China

Sthenoteuthis oualaniensis is one of the most commercially important marine cephalopod species distributed throughout tropical and subtropical waters of the Indo-Pacific Seas. The Indian Ocean is a main fishing ground for S. oualaniensis with a high population density. To explore the distribution of S. oualaniensis in the east equatorial Indian Oce...

The lanternfishes are mesopelagic fish that are highly productive as common bycatch of deep-sea shrimp trawlers, but they are often neglected or discarded. Despite being one of the dominant lanternfish species in the Arabian Sea, little is known about the life history of Diaphus thiollierei and its role in marine ecosystems. In this study, 103 D. t...

The Southern Ocean, a critical marine region on Earth, is undergoing significant environmental changes due to global climate change, including reductions in sea ice extent, ocean acidification, and alterations in the Antarctic Circumpolar Current (ACC). The Cosmonaut Sea, notable for its dynamic sea ice and rich biological activity, remains one of...

Yellow seabream (Acanthopagrus latus), a species of significant economic importance, predominantly inhabits the warm waters of the Indo-Western Pacific. While previous studies have explored the genetic diversity of A. latus using microsatellites and other nuclear markers, a comprehensive understanding of its genetic characteristics and adaptive evo...

Lanternfish not only boast the most abundant biomass among marine fish species but also play a vital role in marine ecosystems. As one of the lanternfish species with the highest global catch, the skinnycheek lanternfish (Benthosema pterotum) is widely distributed in the Indo-Pacific region, playing a pivotal role in the marine biological pump. Thi...

Larmichthys crocea (L. crocea) is an economically important fish species mainly distributed off the coast of China. In this study, 11 L. crocea samples of different body lengths were collected from aquaculture cages in the East China Sea to measure the acoustic target strength (TS). Using the Kirchhoff-Ray mode (KRM) model, the directional TS of L....

Simple Summary Acanthopagrus latus and Rhabdosargus sarba are important species for fishing and aquaculture in China’s coastal areas. However, in recent years, their populations have declined due to the impact of marine ecosystem development and aquaculture expansion., and there has been limited research on the adaptation and evolutionary processes...

The Cosmonaut Sea is one of the least accessed regions in the Southern Ocean, and our knowledge about the fish biodiversity in the region is sparse. In this study, we provided a description of demersal fish diversity in the Cosmonaut Sea by analysing cytochrome oxidase I (COI) barcodes of 98 fish samples that were hauled by trawling during the 37th...

Antarctic krill Euphausia superba is a key species in the Southern Ocean ecosystem and has important ecological value. It is also one of the main fishery resources in the Southern Ocean with high economic value. In recent years, with the development of krill fishery and rapid climate change, the conservation and management of krill resources have f...

Studies on the demersal fish composition of the East Antarctic nearshore region are very scarce due to the harsh physical geography of the East Antarctic region, which is covered in ice and snow year round, leading to a scarcity of scientific surveys. Based on the data from the bottom trawl survey conducted by the 37–38th Chinese National Antarctic...

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...

The V3-V4 region of the bacterial 16S rRNA in the intestinal contents of three commercial fish species (Larimichthys crocea, Larimichthys polyactis, and Trichiurus lepturus) from the central and southern East China Sea was sequenced in an attempt to understand the intestinal microbial diversity (IMD) and community structure in these populations col...

In this study, we conducted two surveys in the central and southern parts of the South China Sea, in autumn 2012 and spring 2013. Six juvenile tuna species were caught in each survey. Gradient forest analysis (GFA) and a generalized additive model (GAM) were used to analyze the relationship between the catch per unit effort (CPUE) for the juvenile...

Sexual growth dimorphism is a common phenomenon in teleost fish and has led to many reproductive strategies. Growth- and sex-related gene research in teleost fish would broaden our understanding of the process. In this study, transcriptome sequencing of shortfin scad Decapterus macrosoma was performed for the first time, and a high-quality referenc...

Abstract: In order to understand the changes in the genetic characteristics of P.trituberculatus in the coastal waters of Shidao after enhancement and releasing,this paper analyzed the genetic diversity and genetic structure of P.trituberculatus populations based on mitochondrial DNA control region sequences.And the P.trituberculatus populations we...

The Pacific saury ( Cololabis saira ) is one of the most commercially important pelagic fishes in Asia–Pacific countries. The oceanographic environment, especially the Oyashio Current, significantly affects the distribution of Pacific saury, and may lead to variations in their migration route and the formation of fishing grounds in Japanese coastal...

The Southern Ocean is experiencing complex climate change, and the Amundsen Sea is one of the regions that has responded most rapidly to climate change. Due to their role in ecosystems, environmental sensitivity and high endemism, Antarctic demersal fish are a favorable group that can act as an indicator of the response of Antarctic organisms to cl...

Climate change and overfishing have led to the degradation of the quality and stock of Pampus echinogaster. Exploring the genetic structure and local adaptive evolutionary mechanisms of P. echinogaster is crucial for the management of this species. This population genomic study of nine geographical populations of P. echinogaster in China was conduc...

Our knowledge regarding the taxonomy and diversity of demersal fish in Prydz Bay is insufficient; however, DNA barcoding can discriminate and identify species and has emerged as a promising tool for the molecular taxonomy and systematics of various fish groups. We analyzed cytochrome oxidase I (COI) barcodes for 102 fish specimens collected in Pryd...

Fisheries management policies (FMPs) have been implemented in coastal countries to ensure a sustainable supply of seafood and the recovery of species diversity. Because of the depletion of fishery stocks, China has introduced a series of FMPs since 1995, including a seasonal fishing moratorium (SFM), a zero-growth strategy, and a minimum mesh size...

Abstract: It is well known that Stromateidae species are important commercial fishes. Only the Pampus species arefound along the coast of China, while both Peprilus and Stromateus are distributed in the Atlantic and East PacificIn this study, morphological characteristics and DNA barcoding technology were used to identily the species ol“ Nanchang”...

DNA barcoding by sequencing a standard region of cytochrome c oxidase subunit I (COI) provides an accurate, rapid method for identifying different species. In this study, we provide a molecular taxonomic assessment of demersal fishes in the Bering Sea and Chukchi Sea based on DNA barcoding, and a total of 123 mitochondrial COI partial fragments wit...

The Chukchi and northern Bering Seas, which serve as the only gateway for Pacific water entering the Arctic Ocean, have experienced profound declines in sea ice cover as well as increases in oceanic temperature. In this region, fish responses to climate change are of widespread concern, but time-series data are limited because of the harsh environm...

The first record of a lanternfish (Myctophidae) found on the continental slope of the Pacific Arctic region occurred in 2020 when six live glacier lanternfish (Benthosema glaciale) were sampled in the southwest Chukchi Sea (75.04 °N, 179.99 °E). The glacier lanternfish is widespread throughout the North Atlantic and adjacent Arctic. Previously, the...

The Southern Ocean is experiencing complex climate change, and the Amundsen Sea is one of the regions that responds most rapidly to climate change. Due to their role in ecosystems, environmental sensitivity and high endemism, Antarctic demersal fish are a favourable group that can act as an indicator to indicate the response of Antarctic organisms...

The Antarctic krill (Euphausia superba) fishery is the largest fishery in the Southern Ocean, and it has been operating for over 45 years. In the past decade, the spatial distribution of the krill fishery has focused on the Bransfield Strait off the Antarctic Peninsula (subarea 48.1). However, the high fishing effort and climate change have placed...

Yellowfin seabream is an important economic fish that is widely distributed in the East and South China seas. Many attempts to enhance stocks of yellowfin seabream have occurred in China, but a lack of genetic information for this species after stock release represents an obstacle to its management and conservation. To provide scientific guidance f...

The Ninety East Ridge is a submarine north–south oriented volcanic ridge in the eastern Indian Ocean. Surface-layer ichthyoplankton collected in this area from September to October were identified by combined morphological and molecular (DNA barcoding) techniques, and their species composition, diversity, and abundance, and correlations with enviro...

Dongshan Bay is located on the west side of the Taiwan Strait, which had abundant fishery resources in the past. With the increase in fishing pressure, resources have declined. To restore the fishery resources in Dongshan Bay and to increase fishing yield, much enhancement and release work has been carried out in Dongshan Bay. The yellowfin seabrea...

Sediment has been considered as an important sink for microplastics (MPs), but there are limited reports about the spatial and temporal variability of MPs in sediment from the Arctic Ocean. Furthermore, understanding is lacking on the correlation between Arctic sea ice variation and MP abundance in sediment. This study aimed to assess the MP contam...

Yellowfin seabream is an important economic fish that is widely distributed in the East and South China seas. Many attempts to enhance stocks of yellowfin seabream have occurred in China, but a lack of genetic information for this species after stock release represents an obstacle to its management and conservation. To provide scientific guidance f...

Background: Factors such as climate change (especially ocean warming) and overfishing have led to a decline in the supply of Pampus echinogaster and a trend of decreasing age. Exploring the genetic structure and local adaptive evolutionary mechanisms is crucial for the management of P. echinogaster. Results: This population genomic study of nine ge...

Understanding the genetic diversity and habitat adaptation patterns of different geographic populations of marine organisms is essential for the rational maintenance, development, and utilization of their resources. Pampus minor Liu and Li 1998 is an economically valuable marine fish species. To determine the population genetic structure and elucid...

DNA barcoding by sequencing a standard region of cytochrome c oxidase subunit I (COⅠ) provides an accurate, rapid method for identifying different species. In this study, we provide a molecular taxonomic assessment of demersal fishes in the Bering Sea and Chukchi Sea based on DNA barcoding, and a total of 123 mitochondrial COⅠ partial fragments wit...

Chub mackerel (Scomber japonicus) in the northwest Pacific Ocean is generally divided into the Tsushima Warm Current (TWC) and Pacific Ocean (Pacific stock) stocks, based on habitat and migratory patterns. Since the 1970s, the abundance of the Pacific stock has undergone more extreme fluctuations than the TWC stock, which decreased sharply in the l...

On the basis of traditional morphological classification, Gymnothorax minor has been misidentified as Gymnothorax reticularis in China. Because of the special ecological habits and aggressiveness of this species, little research has been performed on its population genetics. Given the general decline in offshore fishery resources, it is necessary t...

Decapterus macarellus and D. macrosoma are economically important pelagic fish species that are widely distributed in tropical and subtropical seas. The two species are often mistakenly identified due to their morphological similarities as described in the Chinese literature on fish identification. In this study, D. macarellus and D. macrosoma samp...

Microplastics (MPs) in the Arctic have raised increasing concern, but knowledge on MP contamination in benthic organisms from Arctic shelf regions, e.g., the Chukchi Sea is still limited. Therefore, the present study investigated the occurrence, characteristics, sources, and environmental implications of MPs in the three most common benthic species...

Thryssa kammalensis (Bleeker, 1849) is a common pelagic species in the Chinese Seas and plays an important role in marine ecosystems. In the present study, 196 individuals of T. kammalensis were collected from nine localities along the Chinese coastal waters. The partial control region sequences of them were sequenced for analysis. Variable numbers...

Pomfret, which are widely distributed throughout the western Pacific and Indian Oceans, are economically important fish species. As their similar external morphological characteristics can inhibit proper species identification, numerous errors exist in the morphological characterization and DNA barcoding data of pomfret. In this study, we extensive...

Lycodes polaris is one of the most widely distributed and abundant eelpout species on the Arctic continental shelves with full mitogenome information unavailable. In this paper, complete mitochondrial genome of L. Polaris was determined with 16,595 bp in length, containing 13 protein-coding genes, 2 ribosomal RNA genes, 22 transfer RNA genes, and 2...

The complete mitochondrial genome was determined for Arctic staghorn sculpin Gymnocanthus tricuspis (Reinhardt, 1830), which is considered an important part of Arctic food webs. The mitogenome sequence is 16,570 bp in length containing 2 ribosomal RNA genes, 22 tRNA genes, 13 protein-coding genes, and 2 non-coding regions consist of control region...

Myoxocephalus scorpius (Linnaeus, 1758) is the second abundant fish species in coastal Arctic ecosystems with very less genetic information. In this study, the complete mitochondrial genome sequence of M. scorpius was sequenced with 16,626 bp in length, including the structure of 13 protein-coding genes, two ribosomal RNA genes, 22 transfer RNA gen...

Lycodes brevipes is one of the representative species of zoarcid fishes with little genetic information. The complete mitochondrial genome sequence of L. brevipes was sequenced by long PCR and primer walking methods. The mitogenome is a circular molecule of 16,537 bp in length including the structure of 13 protein-coding genes, two ribosomal RNA ge...

In order to better understand the impact of the Fukushima Daiichi Nuclear Power Plant (FDNPP) accident on a commercial marine species, neon flying squid (Ommastrephes bartramii) samples obtained from the northwestern Pacific in November 2011 were analyzed for a range of artificial and natural radionuclides (Cs-134, Cs-137, Ag-110m, U-238, Ra-226, a...

The length‐weight relationships (LWRs) for five myctophid species were estimated, named Symbolophorus evermanni (Gilbert, 1905), Nannobrachium nigrum Günther, 1887, Ceratoscopelus warmingii (Lütken, 1892), Lampadena yaquinae (Coleman & Nafpaktitis, 1972) and Myctophum asperum Richardson, 1845. Specimens were collected using light‐purse seine (mesh...

The length–weight relationships (LWRs) were analyzed for three fish species collected from Beibu Gulf between October 2012 and March 2013. The study used bottom trawl with 40 mm mesh size. The values of parameter b varied from 2.8495 to 3.0277.

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 n...

The seafloor is recognized as one of the major sinks for microplastics (MPs). However, to date there have been no studies reported the MP contamination in benthic organisms from the Arctic and sub-Arctic regions. Therefore, this study provided the first data on the abundances and characteristics of MPs in a total of 413 dominant benthic organisms r...

In order to better understand the impact of Fukushima Nuclear Power Plant (NPP) Accident on commercial marine species, squid (Ommastrephe bartrami) samples, obtained from the northwestern Pacific in November 2011, were analyzed for a range of artificial and natural radionuclides (Cs-134, Cs-137, Ag-110m, U-238, Ra-226 and K-40). Short-lived radionu...

A new identification of Gymnothoraxminor (Temminck & Schlegel, 1846) is documented based on morphological characteristics and DNA barcoding. Sixty-one individuals of G.minor were collected from the East China Sea and the South China Sea. This species was previously reported as Gymnothoraxreticularis Bloch, 1795 in China because of the similarity in...

Genetic variation among seven populations of Pampus echinogaster collected from the coastal waters of China was investigated based on the mitochondrial DNA control region and microsatellite molecular markers. The results revealed a high level of genetic diversity that may be related primarily to the life history traits and diverse habitats of this...

Pampus minor is often mistakenly identified as the larva of Pampus argenteus or Pampus cinereus because of its small size. Despite its importance, studies on the population genetics of P. minor are not yet available. In the present study, the mitochondrial Cytb gene was employed to investigate the population genetics of P. minor collected along the...

Pampus argenteus is an economically important fish that is often erroneously identified as Pampus echinogaster. No population genetic analyses have been performed on the true P. argenteus species. Here, the mitochondrial control region (CR) was used to evaluate the population genetics and elaborate the historical demography of the Silver pomfret co...

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, W...

This study investigated the radioactive impacts on 10 nekton species in the Northwest Pacific more than one year after the Fukushima Nuclear Accident (FNA) from the two perspectives of contamination and harm. Squids were especially used for the spatial and temporal comparisons to demonstrate the impacts from the FNA. The radiation doses to nekton s...

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...

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 sh...

Abstract The long PCR and primer walking methods are employed for determining the complete mitochondrial genome sequence of Pampus echinogaster. The mitogenome is a circular molecule of 17,694 bp in length including the structure of 13 protein-coding genes, 2 ribosomal RNA genes, 23 transfer RNA genes and 2 non-coding regions (L-strand replication...

Abstract The long PCR and primer walking methods were applied for obtaining the complete mitochondrial genome of the tessellated leatherjacket Thamnaconus tessellatus. The complete mitochondrial genome was 16,437 bp in length and contained 13 protein-coding genes, 2 ribosomal RNA genes, 22 transfer RNA genes, an origin of L-strand replication and a...

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Deep brain evoked potentials play an important role in exploring the mechanism of nerve stimulator to treat diseases. In clinical treatment, there is a problem defined as underdetermined blind source separation that the number of collect electrodes is fewer than the source signal's. To solve this problem, an improved blind source separation without...

Trachurus japonicus is a pelagic fish widely distributed from China, Korea to Japan. To examine the gene flow of T. japonicus between Chinese and Japanese coastal waters, eight populations were collected for the present study. Eighty-seven variable sites defined 168 haplotypes. The populations of T. japonicus showed high haplotype diversity (h) wit...

Pacific herring show an abrupt genetic discontinuity in the central North Pacific that represents secondary contact between refuge populations previously isolated during Pleistocene glaciations. Paradoxically, high levels of gene flow produce genetic homogeneity among ocean-type populations within each group. Here, we surveyed variability in mtDNA...

Levels of genetic variability at ten microsatellite loci in the nine populations of Pacific herring and for all populations pooled. (DOCX)

Haplotypes distribution of the three lineages in the ten populations. (DOCX)

To detect the diversity of the degradation bacteria of halogenated-alkane form the surface seawater of the Arctic Ocean. Twelve surface-water samples from the Arctic Ocean were collected and enriched using C16 H33 Cl as the sole carbon and energy source. Bacteria from the enriched cultures were isolated on marine agar, and followed by 16S rRNA gene...

To understand mercury (Hg) toxicity in marine fish, we measured Hg accumulation in juvenile Japanese flounder (Paralichthys olivaceus) and assessed the effects on growth and antioxidant responses. After Hg exposure (control, 5, 40, and 160 μg/L Hg) for 28 d, fish growth was significantly reduced. The accumulation of Hg in fish was dose-dependent an...

The source of bioelectrical signal can be accurately located by improving the precision of surface Laplacian potential, based on which the formula of calculating surface Laplacian potential by 25-point matrix method was theoretically derived in this paper, with truncation error not influenced by six-order derivative. This approach reaches the six-o...