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Dr. Joo Myun Park
Dokdo Research Center, East Sea Research Institute, Korea Institute of Ocean Science & Technology

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0 Fisheries
0 Marine Ecology
0 food web
0 Stable isotope

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Article
Published: 24 August 2021 in Thalassas: An International Journal of Marine Sciences
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This study reports the first data on length–weight (LWR) and length-length (LLR) relationships, and seasonal body condition factors of Blueline snapper, Lutjanus coeruleolineatus (Rüppell, 1838) inhabiting Salalah Coast, Sultanate of Oman. The regression slopes of LWRs were significantly different between immature and mature groups, and among different seasons, but it was not significant between male and female specimens. The relationships between total and standard length, between standard and fork length, and between fork and total length were linear (r2 > 0.972) regardless of sex. The body condition of fish was significantly higher during the southwest monsoon (both pre- and post-monsoon) than during the non-monsoon seasons. The results from this study contribute to understand biology of L. coeruleolineatus and are useful data for the development of conservation and management plans of this species.

ACS Style

Joo Myun Park; Dawood Almamari; Saeed Rabee; Laith A. Jawad. Length–Weight and Length-Length Relationships, and Seasonal Condition Factors of Blueline Snapper, Lutjanus coeruleolineatus (Rüppell, 1838) from Salalah Coast, Sultanate of Oman. Thalassas: An International Journal of Marine Sciences 2021, 1 -6.

AMA Style

Joo Myun Park, Dawood Almamari, Saeed Rabee, Laith A. Jawad. Length–Weight and Length-Length Relationships, and Seasonal Condition Factors of Blueline Snapper, Lutjanus coeruleolineatus (Rüppell, 1838) from Salalah Coast, Sultanate of Oman. Thalassas: An International Journal of Marine Sciences. 2021; ():1-6.

Chicago/Turabian Style

Joo Myun Park; Dawood Almamari; Saeed Rabee; Laith A. Jawad. 2021. "Length–Weight and Length-Length Relationships, and Seasonal Condition Factors of Blueline Snapper, Lutjanus coeruleolineatus (Rüppell, 1838) from Salalah Coast, Sultanate of Oman." Thalassas: An International Journal of Marine Sciences , no. : 1-6.

Journal article
Published: 30 June 2021 in Fisheries and Aquatic Sciences
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ACS Style

Se Hun Myoung; Joo Myun Park; Hyo Jin Lee; Laith A. Jawad. First record of Brachaluteres ulvarum (Tetraodontiformes: Monacanthidae) from Jeju-do Island, southern Korea. Fisheries and Aquatic Sciences 2021, 24, 228 -234.

AMA Style

Se Hun Myoung, Joo Myun Park, Hyo Jin Lee, Laith A. Jawad. First record of Brachaluteres ulvarum (Tetraodontiformes: Monacanthidae) from Jeju-do Island, southern Korea. Fisheries and Aquatic Sciences. 2021; 24 (6):228-234.

Chicago/Turabian Style

Se Hun Myoung; Joo Myun Park; Hyo Jin Lee; Laith A. Jawad. 2021. "First record of Brachaluteres ulvarum (Tetraodontiformes: Monacanthidae) from Jeju-do Island, southern Korea." Fisheries and Aquatic Sciences 24, no. 6: 228-234.

Journal article
Published: 07 October 2020 in Journal of Marine Science and Engineering
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Recent global climate change often leads to poleward expansions of habitat range of marine organisms in response to increasing water temperature at high latitude. This study investigated latitudinal distribution patterns of Turbo sazae from 2009 to 2018 along the southern and eastern coasts of Korea to verify whether gradual increases in seawater temperature in the East Sea/Sea of Japan (hereafter East/Japan Sea) accelerate changes in the geographic distribution of T. sazae. Between 2009 and 2018, underwater SCUBA surveys were conducted at 19 subtidal rocky shore habitats from the southern and eastern coast of the Korean Peninsula, including Jeju Island. Additionally, long-term seawater temperature records over the last 40 years (between 1980s and 2010s) from the East/Japan Sea were analyzed to verify how changes of water temperature corresponded to geographical distributions of T. sazae. The habitat range of T. sazae was found to have extended from latitude 34°02′ N to latitude 37°06′ N from 2009 to 2018. Although seawater temperature has gradually increased since the 1990s in the East/Japan Sea, habitat expansion was particularly evident during the rapid rise of coastal seawater temperature in the 2010s. Because the strong northward expansion of the Tsushima Current can accelerate the rise of seawater temperature in the East/Japan Sea, studies of the effects of climate change on marine ecosystems of the Korean Peninsula should include data from monitoring the dynamics of the Tsushima Current.

ACS Style

Min Ho Son; Chung Il Lee; Joo Myun Park; Hyun Jung Kim; Ralf Riedel; InSeo Hwang; Young-Nam Kim; Hae Kun Jung. The Northward Habitat Expansion of the Korean Top Shell Turbo sazae (Gastropoda: Vetigastropoda: Turbinidae) in the Korean Peninsula: Effects of Increasing Water Temperature. Journal of Marine Science and Engineering 2020, 8, 782 .

AMA Style

Min Ho Son, Chung Il Lee, Joo Myun Park, Hyun Jung Kim, Ralf Riedel, InSeo Hwang, Young-Nam Kim, Hae Kun Jung. The Northward Habitat Expansion of the Korean Top Shell Turbo sazae (Gastropoda: Vetigastropoda: Turbinidae) in the Korean Peninsula: Effects of Increasing Water Temperature. Journal of Marine Science and Engineering. 2020; 8 (10):782.

Chicago/Turabian Style

Min Ho Son; Chung Il Lee; Joo Myun Park; Hyun Jung Kim; Ralf Riedel; InSeo Hwang; Young-Nam Kim; Hae Kun Jung. 2020. "The Northward Habitat Expansion of the Korean Top Shell Turbo sazae (Gastropoda: Vetigastropoda: Turbinidae) in the Korean Peninsula: Effects of Increasing Water Temperature." Journal of Marine Science and Engineering 8, no. 10: 782.

Journal article
Published: 05 July 2020 in Journal of Marine Science and Engineering
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Variabilities of biological communities in lower reaches of urban river systems are highly influenced by artificial constructions, alterations of flow regimes and episodic weather events. Impacts of estuary weirs on fish assemblages are particularly distinct because the weirs are disturbed in linking between freshwater and estuarine fish communities, and migration successes for regional fish fauna. This study conducted fish sampling at the lower reaches of the Nakdong River to assess spatio-temporal variations in fish assemblages, and effects of estuary weir on structuring fish assemblage between freshwater and estuary habitats. In total, 20,386 specimens comprising 78 species and 41 families were collected. The numerical dominant fish species were Tachysurus nitidus (48.8% in total abundance), Hemibarbus labeo (10.7%) and Chanodichthys erythropterus (3.6%) in the freshwater region, and Engraulis japonicus (10.0%), Nuchequula nuchalis (7.7%) and Clupea pallasii (5.2%) in the estuarine site. The fish sampled were primarily small species or the juveniles of larger species at the estuary region, while all life stages of fishes were observed at the freshwater habitats. The diversity patterns of fish assemblages varied greatly according to study site and season, with higher trends at estuarine sites during the warm-rainy season. No significant difference in diversity between freshwater and estuarine sites during the cold-dry season were found. Multivariate analyses of fish assemblage showed spatial and seasonal differences of assemblage structures. Higher effects of between-site variability but not within seasonal variability at each site were observed. Variations in assemblage structures were due to different contributions of dominant species in each habitat. Common freshwater species characterized the fish assemblage in the freshwater region, while marine juveniles were significantly associated with the estuarine habitat. The results from the ecological guild analyses showed distinct ecological roles for freshwater and marine species, and overlapping roles for fish sampled at the fishways. The lower reaches of the Nakdong River are an important ecosystem for both freshwater and marine juveniles. Nakdong River estuarine residents and migrant fishes, however, have been negatively affected by the construction of the weir (gravity dam), due to the obstruction to migration from and to freshwater habitats. Conservation and management policies aimed at minimizing anthropogenic influences on estuary ecosystems should focus on evaluating ecological functions of estuary weirs.

ACS Style

Joo Myun Park; Ralf Riedel; Hyun Hee Ju; Hee Chan Choi. Fish Assemblage Structure Comparison between Freshwater and Estuarine Habitats in the Lower Nakdong River, South Korea. Journal of Marine Science and Engineering 2020, 8, 496 .

AMA Style

Joo Myun Park, Ralf Riedel, Hyun Hee Ju, Hee Chan Choi. Fish Assemblage Structure Comparison between Freshwater and Estuarine Habitats in the Lower Nakdong River, South Korea. Journal of Marine Science and Engineering. 2020; 8 (7):496.

Chicago/Turabian Style

Joo Myun Park; Ralf Riedel; Hyun Hee Ju; Hee Chan Choi. 2020. "Fish Assemblage Structure Comparison between Freshwater and Estuarine Habitats in the Lower Nakdong River, South Korea." Journal of Marine Science and Engineering 8, no. 7: 496.

Journal article
Published: 28 February 2020 in Diversity
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Decapod assemblages in Zostera marina beds from two bays adjacent to unvegetated habitats were investigated to assess their influence on decapod assemblages. Thirty-eight decapod species belonging to four taxa were collected using a small beam trawl at four habitat types from two different locations off the coast of Namhae Island, South Korea. Dominant decapod taxon at all habitats was the caridean shrimps, with Eualus leptognathus, Heptacarpus pandaloides, Latreutes anoplonyx, La. Laminirostris, and Palaemon macrodactylus being the most abundant caridean species. Crabs were characterized with the highest biomass, but with moderate species richness and abundance. Penaeoid and sergestoid shrimps only accounted for

ACS Style

Joo Myun Park; Seok Nam Kwak; Ralf Riedel. Crustacean Decapod Assemblage Associated with Seagrass (Zostera marina) Beds in Southern Waters of Korea. Diversity 2020, 12, 89 .

AMA Style

Joo Myun Park, Seok Nam Kwak, Ralf Riedel. Crustacean Decapod Assemblage Associated with Seagrass (Zostera marina) Beds in Southern Waters of Korea. Diversity. 2020; 12 (3):89.

Chicago/Turabian Style

Joo Myun Park; Seok Nam Kwak; Ralf Riedel. 2020. "Crustacean Decapod Assemblage Associated with Seagrass (Zostera marina) Beds in Southern Waters of Korea." Diversity 12, no. 3: 89.

Short communication
Published: 21 January 2020 in Journal of Sea Research
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Prey selection by marine fishes is highly dependent on whether available food resources are abundant or deficient in their feeding grounds. The influence of fishing method on prey choice was analyzed via stomach content analyses of three coastal fishes: Pennahia argentata, Sillago japonica, and Thryssa kammalensis. Fish samples were collected from northern Jinju Bay, Korea, using two types of fishing gear that covered two different fishing layers in the water column: beam-trawl (bottom layer) and set-net (surface layer). When caught via beam-trawl, all three target species were function as bottom-feeding carnivores that consumed mainly benthic crustaceans and other invertebrates. In contrast, when caught via set-net, teleosts were the most abundant prey items in the diets of the three species. Significant differences in the diet composition between beam-trawl and set-net samples were revealed using permutational multivariate analysis of variance. Although seasonal changes in diet composition were also evident, the influence of season was weaker than that of fishing gear. Consequently, in this study, stomach content analysis demonstrated that set-net made a strong effect on prey selection by the co-occurring P. argentata, S. japonica, and T. kammalensis in southern Korean waters.

ACS Style

Joo Myun Park; Seok Nam Kwak; Won Chan Lee. Dietary study using set-nets produces bias in prey choice of fish: A case of three coastal fishes inhabiting southern Korean waters. Journal of Sea Research 2020, 157, 101846 .

AMA Style

Joo Myun Park, Seok Nam Kwak, Won Chan Lee. Dietary study using set-nets produces bias in prey choice of fish: A case of three coastal fishes inhabiting southern Korean waters. Journal of Sea Research. 2020; 157 ():101846.

Chicago/Turabian Style

Joo Myun Park; Seok Nam Kwak; Won Chan Lee. 2020. "Dietary study using set-nets produces bias in prey choice of fish: A case of three coastal fishes inhabiting southern Korean waters." Journal of Sea Research 157, no. : 101846.

Article
Published: 16 July 2019 in Thalassas: An International Journal of Marine Sciences
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Diets and feeding patterns of brown croaker, Miichthys miiuy were studied using 293 specimens collected from the coastal waters of south-western Korea. Total length (TL) of these specimens ranged from 30.7 to 84.8 cm. Miichthys miiuy was a piscivore that primarily consumed teleosts. They also ate crustacean decapods including caridean shrimps, prawns and crabs. Multivariate analyses of dietary data revealed that the diets of M. miiuy were significantly associated with TL, maturity, and month, but not influenced by season or sex. Although teleosts were dominant in the diets of all sizes, decapods also contributed substantially to the diets of smaller individuals. In terms of month, a little change was observed among months. A graphical method of feeding pattern revealed that M. miiuy was a specialized predator, consuming mainly teleosts from both immature and mature groups. Taken together, stomach content analysis in this study indicated that fish size is the most important indicator on dietary changes of M. miiuy inhabiting south-western waters off Korea.

ACS Style

Jae Mook Jeong; Yeonghye Kim; Se-Hyun Song; Joo Myun Park. Feeding Patterns of Brown Croaker, Miichthys miiuy (Basilewsky, 1855) from the South-Western Waters off Korea: Size-Related and Seasonal Trends. Thalassas: An International Journal of Marine Sciences 2019, 35, 413 -420.

AMA Style

Jae Mook Jeong, Yeonghye Kim, Se-Hyun Song, Joo Myun Park. Feeding Patterns of Brown Croaker, Miichthys miiuy (Basilewsky, 1855) from the South-Western Waters off Korea: Size-Related and Seasonal Trends. Thalassas: An International Journal of Marine Sciences. 2019; 35 (2):413-420.

Chicago/Turabian Style

Jae Mook Jeong; Yeonghye Kim; Se-Hyun Song; Joo Myun Park. 2019. "Feeding Patterns of Brown Croaker, Miichthys miiuy (Basilewsky, 1855) from the South-Western Waters off Korea: Size-Related and Seasonal Trends." Thalassas: An International Journal of Marine Sciences 35, no. 2: 413-420.

Journal article
Published: 15 March 2019 in Regional Studies in Marine Science
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Dietary studies of elasmobranch species are an essential component for developing management and conservation frameworks, because of their ecological importance as top predators in coastal marine ecosystems. The diets of cloudy catshark Scyliorhinus torazame were studied with the aid of 117 specimens collected from the southern sea of Korea. S. torazame was mainly piscivorous, but also ingested polychaetes and small amounts of benthic crustaceans. This dietary composition led to an estimated trophic level of 3.90 for the species. The diets of S. torazame changed significantly with season, but not length or sex of the sharks. Graphical analysis indicated that S. torazame is a benthic generalist feeder that consumes a variety of prey, but also showed high individual diet specialization.

ACS Style

Joo Myun Park; Gun Wook Baeck; Vincent Raoult. First observation on the diet and feeding strategy of cloudy catshark Scyliorhinus torazame (Tanaka, 1908). Regional Studies in Marine Science 2019, 28, 100596 .

AMA Style

Joo Myun Park, Gun Wook Baeck, Vincent Raoult. First observation on the diet and feeding strategy of cloudy catshark Scyliorhinus torazame (Tanaka, 1908). Regional Studies in Marine Science. 2019; 28 ():100596.

Chicago/Turabian Style

Joo Myun Park; Gun Wook Baeck; Vincent Raoult. 2019. "First observation on the diet and feeding strategy of cloudy catshark Scyliorhinus torazame (Tanaka, 1908)." Regional Studies in Marine Science 28, no. : 100596.

Original article
Published: 10 December 2018 in Acta Zoologica
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Measures of biodiversity are often hindered by a lack of methodological practices that distinguish cryptic or morphologically similar cohabiting species. This is particularly difficult for marine fishes where direct observations of the ecology and demography of populations are difficult. Dragonets (Foetorepus c.f. calauropomus) were collected as bycatch from research trawls deployed in waters off north‐eastern Tasmania, Australia. Morphometric and genetic analyses were conducted on the 43 specimens recovered. Sequence analysis of two mitochondrial loci distinguished three genetic clusters, each having levels of dissimilarity consistent with species‐level distinctions between other members of the Callionymidae. While clear morphological distinctions were observed between male and female fish, limited morphometric analyses could not differentiate between members of the three genetic groups. This finding highlights questions about the ability of genetically distinct but morphologically similar groups to occupy the same ecological niche, and points to additional and undescribed hidden biodiversity amongst cryptic species of fish.

ACS Style

Joo Myun Park; Nicholas N. Powell; Michael R. Gillings; Troy F. Gaston; Jane E. Williamson. Phylogeny and form in fishes: Genetic and morphometric characteristics of dragonets ( Foetorepus sp.) do not align. Acta Zoologica 2018, 101, 218 -226.

AMA Style

Joo Myun Park, Nicholas N. Powell, Michael R. Gillings, Troy F. Gaston, Jane E. Williamson. Phylogeny and form in fishes: Genetic and morphometric characteristics of dragonets ( Foetorepus sp.) do not align. Acta Zoologica. 2018; 101 (2):218-226.

Chicago/Turabian Style

Joo Myun Park; Nicholas N. Powell; Michael R. Gillings; Troy F. Gaston; Jane E. Williamson. 2018. "Phylogeny and form in fishes: Genetic and morphometric characteristics of dragonets ( Foetorepus sp.) do not align." Acta Zoologica 101, no. 2: 218-226.

Note
Published: 08 November 2018 in Ocean Science Journal
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Diel and gastrointestinal changes in relation to the feeding intensity and prey composition of Apogon lineatus were investigated through the analysis of the diet contents of 174 fishes collected from the southeastern coast of Korea. Fish samples were collected at both day and night times during winter using a small bottom trawl. Stomach fullness, stomach contents index (SCI) and intestine contents index (ICI) of A. lineatus varied with day-night changes. Multivariate analyses revealed that dietary contents differed significantly between the stomach and intestine, but were similar between day and night in both stomachs and intestines. In the stomachs, prey items mostly consisted of caridean shrimps and euphausiids, while the relative contributions of amphipods and unidentifiable items tended to be high in the intestine contents, indicating that the intestines mainly contained content made up of nearly digested and/or hard shell items.

ACS Style

Joo Myun Park; Hae Kun Jung; Chung Il Lee; Sung-Hoi Huh. Day-Night and Gastrointestinal Changes in Winter Feeding Intensity and Prey Composition of Apogon lineatus Inhabiting the Southeastern Waters of Korea. Ocean Science Journal 2018, 54, 141 -146.

AMA Style

Joo Myun Park, Hae Kun Jung, Chung Il Lee, Sung-Hoi Huh. Day-Night and Gastrointestinal Changes in Winter Feeding Intensity and Prey Composition of Apogon lineatus Inhabiting the Southeastern Waters of Korea. Ocean Science Journal. 2018; 54 (1):141-146.

Chicago/Turabian Style

Joo Myun Park; Hae Kun Jung; Chung Il Lee; Sung-Hoi Huh. 2018. "Day-Night and Gastrointestinal Changes in Winter Feeding Intensity and Prey Composition of Apogon lineatus Inhabiting the Southeastern Waters of Korea." Ocean Science Journal 54, no. 1: 141-146.

Journal article
Published: 01 September 2018 in Journal of Sea Research
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ACS Style

Joo Myun Park; Seok Nam Kwak. Seagrass fish assemblages in the Namhae Island, Korea: The influences of seagrass vegetation and biomass. Journal of Sea Research 2018, 139, 41 -49.

AMA Style

Joo Myun Park, Seok Nam Kwak. Seagrass fish assemblages in the Namhae Island, Korea: The influences of seagrass vegetation and biomass. Journal of Sea Research. 2018; 139 ():41-49.

Chicago/Turabian Style

Joo Myun Park; Seok Nam Kwak. 2018. "Seagrass fish assemblages in the Namhae Island, Korea: The influences of seagrass vegetation and biomass." Journal of Sea Research 139, no. : 41-49.

Journal article
Published: 30 June 2018 in Acta Ichthyologica et Piscatoria
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ACS Style

Joo Myun Park; Hae Kun Jung; Chung Il Lee. Weight–length relations for ten demersal fishes (Actinopterygii) from eastern Korean waters. Acta Ichthyologica et Piscatoria 2018, 48, 209 -211.

AMA Style

Joo Myun Park, Hae Kun Jung, Chung Il Lee. Weight–length relations for ten demersal fishes (Actinopterygii) from eastern Korean waters. Acta Ichthyologica et Piscatoria. 2018; 48 (2):209-211.

Chicago/Turabian Style

Joo Myun Park; Hae Kun Jung; Chung Il Lee. 2018. "Weight–length relations for ten demersal fishes (Actinopterygii) from eastern Korean waters." Acta Ichthyologica et Piscatoria 48, no. 2: 209-211.

Journal article
Published: 13 June 2018 in Remote Sensing
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The climate-induced decrease in fish catches in South Korea has been a big concern over the last decades. The increase in sea surface temperature (SST) due to climate change has led to not only a decline in fishery landings but also a shift in the fishing grounds of several fish species. The habitat suitability index (HSI), a reliable indicator of the capacity of a habitant to support selected species, has been widely used to detect and forecast fishing ground formation. In this study, the catch data of the chub mackerel and satellite-derived environmental factors were used to calculate the HSI for the chub mackerel in the South Sea, South Korea. More than 80% of the total catch was found in areas with an SST of 14.72–25.72 °C, chlorophyll-a of 0.30–0.92 mg m−3, and primary production of 523.7–806.46 mg C m−2 d−1. Based on these results, the estimated climatological monthly HSI from 2002 to 2016 clearly showed that the wintering ground of the chub mackerel generally formed in the South Sea of South Korea, coinciding with the catch distribution during the same period. This outcome implies that our estimated HSI can yield a reliable prediction of the fishing ground for the chub mackerel in the East/Japan Sea and South Sea of South Korea.

ACS Style

Dabin Lee; Seunghyun Son; Wonkook Kim; Joo Myun Park; HuiTae Joo; Sang Heon Lee. Spatio-Temporal Variability of the Habitat Suitability Index for Chub Mackerel (Scomber Japonicus) in the East/Japan Sea and the South Sea of South Korea. Remote Sensing 2018, 10, 938 .

AMA Style

Dabin Lee, Seunghyun Son, Wonkook Kim, Joo Myun Park, HuiTae Joo, Sang Heon Lee. Spatio-Temporal Variability of the Habitat Suitability Index for Chub Mackerel (Scomber Japonicus) in the East/Japan Sea and the South Sea of South Korea. Remote Sensing. 2018; 10 (6):938.

Chicago/Turabian Style

Dabin Lee; Seunghyun Son; Wonkook Kim; Joo Myun Park; HuiTae Joo; Sang Heon Lee. 2018. "Spatio-Temporal Variability of the Habitat Suitability Index for Chub Mackerel (Scomber Japonicus) in the East/Japan Sea and the South Sea of South Korea." Remote Sensing 10, no. 6: 938.

Journal article
Published: 01 June 2018 in Journal of Asia-Pacific Biodiversity
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ACS Style

Joo Myun Park; Sung-Hoi Huh. Epibenthic invertebrate fauna in the southern coast of the East Sea, Korea. Journal of Asia-Pacific Biodiversity 2018, 11, 217 -222.

AMA Style

Joo Myun Park, Sung-Hoi Huh. Epibenthic invertebrate fauna in the southern coast of the East Sea, Korea. Journal of Asia-Pacific Biodiversity. 2018; 11 (2):217-222.

Chicago/Turabian Style

Joo Myun Park; Sung-Hoi Huh. 2018. "Epibenthic invertebrate fauna in the southern coast of the East Sea, Korea." Journal of Asia-Pacific Biodiversity 11, no. 2: 217-222.

Journal article
Published: 01 May 2018 in Journal of Coastal Research
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ACS Style

Myung Joon Kim; Hyung Chul Kim; Won Chan Lee; Joo Myun Park; Seok Nam Kwak; Younggeun Oh; Min Gu Kang; Sang Heon Lee. Ecological Characteristics of the New Recorded Seahorse (Hippocampus haema) in Geoje-Hansan Bay, Korea. Journal of Coastal Research 2018, 85, 351 -355.

AMA Style

Myung Joon Kim, Hyung Chul Kim, Won Chan Lee, Joo Myun Park, Seok Nam Kwak, Younggeun Oh, Min Gu Kang, Sang Heon Lee. Ecological Characteristics of the New Recorded Seahorse (Hippocampus haema) in Geoje-Hansan Bay, Korea. Journal of Coastal Research. 2018; 85 ():351-355.

Chicago/Turabian Style

Myung Joon Kim; Hyung Chul Kim; Won Chan Lee; Joo Myun Park; Seok Nam Kwak; Younggeun Oh; Min Gu Kang; Sang Heon Lee. 2018. "Ecological Characteristics of the New Recorded Seahorse (Hippocampus haema) in Geoje-Hansan Bay, Korea." Journal of Coastal Research 85, no. : 351-355.

Journal article
Published: 01 May 2018 in Journal of Coastal Research
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Choi, H.C.; Youn, S.H.; Huh, S.-H., and Park, J.M., 2018. Diet composition and feeding habits of two engraulid fish larvae (Engraulis japonicus and Coilia nasus) in the Nakdong River estuary, Korea. In: Shim, J.-S.; Chun, I., and Lim, H.S. (eds.), Proceedings from the International Coastal Symposium (ICS) 2018 (Busan, Republic of Korea). Journal of Coastal Research, Special Issue No. 85, pp. 346–350. Coconut Creek (Florida), ISSN 0749-0208. Engraulis japonicus and Coilia nasus are members of the family Engraulidae, and their larvae are important components in the estuarian ecosystems that they inhabit. The dietary study of fish larvae is essential to understanding early survival and recruitment in fish populations. This study investigated the dietary compositions and size-related dietary changes in E. japonicus and C. nasus larvae in the Nakdong River estuary. Larvae samples were collected monthly between April and August 2011 using an RN80 net at two stations in the estuary. Gut content analyses revealed that E. japonicus fed mostly on copepods, and secondarily on tintinnids and cladocerans, while C. nasus preferred to consume freshwater cladocerans. These dietary differences between the two larvae were closely related with habitat preference, which provided different local prey sources at each station. As the larvae of both species grew, the consumption of copepods for E. japonicus, and cladocerans for C. nasus, gradually increased, indicating distinct ontogenetic dietary changes. This dietary study of larval E. japonicus and C. nasus is important information for the development of fisheries, and can be implemented in related further studies of areas other than estuaries.

ACS Style

Hee Chan Choi; Seok Hyun Youn; Sung-Hoi Huh; Joo Myun Park. Diet Composition and Feeding Habits of Two Engraulid Fish Larvae (Engraulis Japonicus and Coilia Nasus) in the Nakdong River Estuary, Korea. Journal of Coastal Research 2018, 85, 346 -350.

AMA Style

Hee Chan Choi, Seok Hyun Youn, Sung-Hoi Huh, Joo Myun Park. Diet Composition and Feeding Habits of Two Engraulid Fish Larvae (Engraulis Japonicus and Coilia Nasus) in the Nakdong River Estuary, Korea. Journal of Coastal Research. 2018; 85 ():346-350.

Chicago/Turabian Style

Hee Chan Choi; Seok Hyun Youn; Sung-Hoi Huh; Joo Myun Park. 2018. "Diet Composition and Feeding Habits of Two Engraulid Fish Larvae (Engraulis Japonicus and Coilia Nasus) in the Nakdong River Estuary, Korea." Journal of Coastal Research 85, no. : 346-350.

Article
Published: 12 April 2018 in Acta Oceanologica Sinica
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Short-term tidal and diel variations of autumn fish assemblage in a Zostera marina bed were investigated using 3 h interval samplings for 24 h in both spring and neap tide using a small beam trawl. A total of 1 346 fishes belonging to 19 species were collected at spring tide, whereas 1 115 fishes belonging to 17 species were at neap tide. The common fish species were Nuchequula nuchalis, Acanthogobius flavimanus, Takifugu niphobles, Acentrogobius pflaumii, and Pholis nebulosa with the former three species dominating at spring tide, while the latter two species being abundant at neap tide. Diel variation in abundance was significant with higher abundance at night than day, but there were no significant differences between spring and neap tides, and between ebb and flood tides (three-way ANOVAs). Diel variation in the abundance of fishes may be influenced by tidal range and cycle, and day-night differences of food availability and behaviors of fishes indirectly. Non-metric multidimensional scaling (nMDS) ordination and analysis of similarity (ANOSIM) results revealed significant differences in species compositions both between day and night, and between spring and neap tide. Eelgrass beds are highly productive marine ecosystem, and thus, our results will contribute to conservation of seagrass ecosystem in the study area.

ACS Style

Seok Nam Kwak; Joo Myun Park; Seong Oh Im; Laith A. Jawad. Influences of diel and tidal cycles on fish assemblage in eelgrass (Zostera marina) bed of southern Korea during autumn. Acta Oceanologica Sinica 2018, 37, 40 -47.

AMA Style

Seok Nam Kwak, Joo Myun Park, Seong Oh Im, Laith A. Jawad. Influences of diel and tidal cycles on fish assemblage in eelgrass (Zostera marina) bed of southern Korea during autumn. Acta Oceanologica Sinica. 2018; 37 (4):40-47.

Chicago/Turabian Style

Seok Nam Kwak; Joo Myun Park; Seong Oh Im; Laith A. Jawad. 2018. "Influences of diel and tidal cycles on fish assemblage in eelgrass (Zostera marina) bed of southern Korea during autumn." Acta Oceanologica Sinica 37, no. 4: 40-47.

Journal article
Published: 31 March 2018 in Indian Journal of Fisheries
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The dietary patterns of the glowbelly Acropoma japonicum Gunther, 1859 were studied based on 180 specimens collected during January to December 2006 off the south-eastern coast of Korea. The standard length (SL) of the specimens ranged from 3.0 to 10.3 cm. A. japonicum was found to be a benthopelagic predator that primarily consumed copepods and carid shrimps, but also preyed moderately on teleosts and euphausiids. The dietary composition of A. japonicum differed between length classes, with copepods and carid shrimps being dominant in the diet of small and large length class, respectively. The diets also were different among seasons, with the difference particularly being evident between warm (summer and autumn) and cold (winter and spring) seasons. Permutational multivariate analysis of variance (PERMANOVA) and analysis of similarities (ANOSIM) revealed significant dietary differences by size and season. These differences in the diets were related to first maturity in female and seasonal changes in water temperature.

ACS Style

Joo Myun Park; Sung-Hoi Huh. Ontogenetic and seasonal changes in the diets of the glowbelly Acropoma japonicum Gunther, 1859 in the south-eastern waters of Korea. Indian Journal of Fisheries 2018, 65, 1 .

AMA Style

Joo Myun Park, Sung-Hoi Huh. Ontogenetic and seasonal changes in the diets of the glowbelly Acropoma japonicum Gunther, 1859 in the south-eastern waters of Korea. Indian Journal of Fisheries. 2018; 65 (1):1.

Chicago/Turabian Style

Joo Myun Park; Sung-Hoi Huh. 2018. "Ontogenetic and seasonal changes in the diets of the glowbelly Acropoma japonicum Gunther, 1859 in the south-eastern waters of Korea." Indian Journal of Fisheries 65, no. 1: 1.

Journal article
Published: 12 March 2018 in Journal of the Marine Biological Association of the United Kingdom
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Crustacean decapod assemblages were surveyed in Zostera marina beds adjacent to tidal flats (ET) and rocky shore (ER), and in unvegetated habitats (UV). Decapod samples were collected monthly throughout 2002 using a small beam trawl from northern Jinhae Bay, Korea. Water temperature, salinity, eelgrass biomass, sediment composition and organic matter were also monitored to assess any correlation between environmental variables and decapod fauna. A total of 31 decapod species belonging to five taxa (three prawns, 13 caridean shrimps, one hermit crab, one mud shrimp and 13 crabs) were collected at three different habitats. To assess variations in decapod assemblages in relation to habitat type and season, various multivariate analyses were used. The dominant caridean shrimps were Palaemon macrodactylus, Alpheus digitalis and Crangon uritai, and the dominant crabs were Charybdis japonica, Hemigrapsus penicillatus and Charybdis bimaculata. The number, abundance and diversity of decapod species varied greatly with habitat type and season, peaking in eelgrass beds and during spring, and showing the lowest catch rate in unvegetated habitat and during winter months. The nMDS ordination and multivariate analyses revealed that habitat type and season were determinant factors affecting the structure of decapod assemblages. Seasonal shifts in the abundance of decapods corresponded with changes in eelgrass biomass and loss on ignition (LOI), but not with water temperature or salinity.

ACS Style

Joo Myun Park; Seok Nam Kwak. Seasonal and habitat structures of crustacean decapod assemblages associated with Zostera marina beds in northern Jinhae Bay, Korea. Journal of the Marine Biological Association of the United Kingdom 2018, 99, 461 -471.

AMA Style

Joo Myun Park, Seok Nam Kwak. Seasonal and habitat structures of crustacean decapod assemblages associated with Zostera marina beds in northern Jinhae Bay, Korea. Journal of the Marine Biological Association of the United Kingdom. 2018; 99 (2):461-471.

Chicago/Turabian Style

Joo Myun Park; Seok Nam Kwak. 2018. "Seasonal and habitat structures of crustacean decapod assemblages associated with Zostera marina beds in northern Jinhae Bay, Korea." Journal of the Marine Biological Association of the United Kingdom 99, no. 2: 461-471.

Journal article
Published: 09 February 2018 in Journal of Applied Ichthyology
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Relationships between fish and otolith measurements were analyzed in nine demersal fishes from the north-eastern Tasmanian waters: Foetorepus calauropomus, Trachurus declivis, Parequula melbournensis, Neosebastes scorpaenoides, Platycephalus aurimaculatus, Platycephalus bassensis, Platycephalus conatus, Lepidotrigla mulhalli and Lepidotrigla vanessa. The values of exponent b from the relationships between fish weight and fish total length, total length and otolith length, total length and otolith width, and fish weight and otolith length were estimated. All above relationships were statistically significant. The analysis of covariance (ANCOVA) was used to test the effect of the categorical factor of species in the fish length and otolith length relationship. Significant differences in fish length and otolith length relationship between species were highlighted in both gurnards and flatheads. Results from this study will provide novel information on quantitative biometric relationships between body and otolith measurements of fish species in Australian waters.

ACS Style

Joo Myun Park; T. F. Gaston; R. Riedel; J. E. Williamson. Biometric relationships between body and otolith measurements in nine demersal fishes from north-eastern Tasmanian waters, Australia. Journal of Applied Ichthyology 2018, 34, 801 -805.

AMA Style

Joo Myun Park, T. F. Gaston, R. Riedel, J. E. Williamson. Biometric relationships between body and otolith measurements in nine demersal fishes from north-eastern Tasmanian waters, Australia. Journal of Applied Ichthyology. 2018; 34 (4):801-805.

Chicago/Turabian Style

Joo Myun Park; T. F. Gaston; R. Riedel; J. E. Williamson. 2018. "Biometric relationships between body and otolith measurements in nine demersal fishes from north-eastern Tasmanian waters, Australia." Journal of Applied Ichthyology 34, no. 4: 801-805.