First record of the hawksbill turtle (Eretmochelys imbricata, Reptilia: Testudines: Cheloniidae) from South Korea

Kim, Il-Hun; Yi, Chang-Ho; Han, Dong-Jin; Park, Daesik; Park, Jaejin; Cho, In-Young; Kim, Min-Seop

doi:10.1016/j.japb.2020.02.006

Cited by 4 publications

(4 citation statements)

References 14 publications

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“…It diverged from the haplotype EiIP33, which is typically observed in rookeries around northern Australia and the Solomon Islands (Vargas et al, 2016;Gaos et al, 2018;Gaos et al, 2020). Additionally, haplotype EiIP53 (EIJ11) detected previously in a turtle stranded on Jeju Island (Kim et al, 2020) has been identified in rookeries in Malaysia (Nishizawa et al, 2016;Vargas et al, 2016). For olive ridley turtles, haplotype Lo1, from which Lo108 diverged, has been observed in rookeries in Malaysia, Indonesia, and northern Australia (Jensen et al, 2013;Vilaca et al, 2022).…”

Section: Connectivity With Neighboring Rookeriesmentioning

confidence: 75%

“…For the remaining three species, mitochondrial sequences were compared with previously reported haplotype data from the Pacific region, given the lack of defined RMUs. For hawksbill turtles, the long sequences (>700 bp) were compared to haplotypes from the western Pacific (Nishizawa et al, 2010;Nishizawa et al, 2012;Nishizawa et al, 2016;Vargas et al, 2016;Kim et al, 2020) and the eastern Pacific (Zuñiga-Marroquin and Espinosa de los Monteros, 2017; Gaos et al, 2018;Gaos et al, 2020) to identify the nomenclature of newly obtained sequences and compare the regional haplotype frequency (Supplementary Table 5). Haplotypes were distinguished according to the phylogenetic clades in Arantes et al (2020).…”

Section: Molecular Analysismentioning

confidence: 99%

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Connectivity between sea turtles off Jeju Island on the Korean Peninsula, and other populations in the western Pacific

Jang,

Jo,

Jang

et al. 2024

Front. Mar. Sci.

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The northwestern Pacific region is an important habitat for sea turtles, hosting five species out of seven. There is still limited information available about the sea turtle aggregations around the Korean Peninsula, which is the northern boundary for many sea turtle species in the western Pacific area. The present study aims to investigate the migratory route of sea turtles visiting Jeju Island. Five species of sea turtles were identified from by-catch and stranding data between 2013 and 2022 on Jeju Island in Korea: green (Chelonia mydas; 24 individuals), loggerhead (Caretta caretta; 9), hawksbill (Eretmochelys imbricata; 2), olive ridley (Lepidochelys olivacea; 2), and leatherback (Dermochelys coriacea; 1). Mixed stock analysis using mitochondrial DNA haplotypes revealed that Jeju green turtles primarily originate from the rookeries of the Japanese Archipelago. This connectivity between two regions was also supported by the similar genetic composition of loggerhead turtles. Similarly, satellite tracking data showed that several green turtles originating from Jeju Island migrated to waters near the Ryukyu Archipelago in Japan. Nevertheless, about 60% of the tracked green turtles stayed near Jeju Island, with most overwintering there, indicating the long residency in Jeju Island. This study also provides the genetic sequences of other three species including new orphan haplotypes of hawksbill and olive ridley turtles. Our findings suggest that Jeju Island serves as a stable foraging habitat and provide insight into understanding the habitat range of sea turtles in the western Pacific.

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Section: Connectivity With Neighboring Rookeriesmentioning

confidence: 75%

Section: Molecular Analysismentioning

confidence: 99%

Connectivity between sea turtles off Jeju Island on the Korean Peninsula, and other populations in the western Pacific

Jang,

Jo,

Jang

et al. 2024

Front. Mar. Sci.

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“…Although the specimen was identified as a Balanus species, the photograph clearly indicates that the taxon in question was C. testudinaria (refer to Figure 8 in Moon et al, 2009). Observations made by us over the years (the personal observations of Y. N. Choi, C. Yi, I.-H. Kim, and Y. N. Choi), as well as photographs provided by other authors (Moon et al, 2009;Kim et al, 2017Kim et al, , 2019Kim I. H. et al, 2020), suggest that green turtles in Korea (but also hawksbills and olive ridleys) rarely carry any barnacles. (Hayashi and Tsuji, 2008), Queensland in Australia (Limpus et al, 1994;Doell et al, 2017), Aldabra Atoll (Frazier, 1971), Mabul Island in N. Borneo (Lim et al, 2021), and Natal and Tongland (Hughes, 1974).…”

Section: Literature-based Comparison Of Frequency and Intensity Of Oc...mentioning

confidence: 87%

Barnacle Epibiosis on Sea Turtles in Korea: A West Pacific Region With Low Occurrence and Intensity of Chelonibia testudinaria (Cirripedia: Chelonibiidae)

Kim

Chan

et al. 2022

Front. Ecol. Evol.

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Loggerhead and green turtles inhabit all oceans except the polar regions. External surfaces of sea turtles are often colonized by epibiotic chelonibiid barnacles. Barnacle taxonomy studies in Korea began in 1985, but until present, no turtle barnacles were recorded. This suggests that either the diversity and frequency of occurrence of turtle barnacles in Korean waters are low or the turtle barnacles have been understudied. This study complies with data collected over 6 years of sea turtle stranding events in Korea (2015–2020). We examined the diversity, frequency, and intensity of turtle barnacle occurrence. Of the 55 recorded strandings, loggerhead turtles were the most common (58%), followed by green turtles (33%). Only one species of barnacle, Chelonibia testudinaria, was found on both loggerhead and green turtles. The frequency of barnacle occurrence on loggerhead turtles was 28%, with an intensity of 2.4 ± 2.7 barnacles per turtle. Notably, 11% of green turtles had barnacles, with an average of one individual per turtle. The frequency and intensity of barnacle occurrence on green turtles analyzed in this study were five times lower than that on green turtle populations in Okinawan, Bornean, and Australian waters in the Indo-Pacific. Based on these new data and the available literature, we speculated that the barnacle larval pools in cold, high-latitude Korean waters are smaller than those occurring in other locations in the Indo-Pacific. The frequency and intensity of occurrence of barnacles on loggerhead turtles in Korea fall within the range recorded in other Indo-Pacific locations. The longer migratory routes of loggerhead turtles allow them to pass through different larval pools in the Indo-Pacific water, exposing them to higher barnacle abundances.

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“…Five sea turtle species have been reported from the coasts of the Republic of Korea, including the loggerhead ( Caretta caretta ; Linnaeus, 1758), green ( Chelonia mydas ; Linnaeus, 1758), hawksbill ( Eretmochelys imbricata ; Linnaeus, 1766), olive ridley ( Lepidochelys olivacea ; Eschscholtz, 1829), and leatherback ( Dermochelys coriacea ; Vandelli, 1761) turtles [ 11 , 12 , 13 , 14 , 15 ]. The observation frequency of sea turtles is increasing near the Korean Peninsula [ 13 , 16 ], with up to 30 observations reported in one year, of which loggerhead and green turtles were the most frequently observed [ 11 , 12 , 16 ].…”

Section: Introductionmentioning

confidence: 99%

Movement Patterns of Juvenile Loggerhead Turtles (Caretta caretta L. 1758) and Green Turtles (Chelonia mydas L. 1758) Hatched in Captivity and Released in the Korean Waters

Kim

Park

Han³

et al. 2022

Animals

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With most sea turtle populations declining, activities to conserve their habitat and nesting grounds and restore their populations are being implemented worldwide. To preserve the Northwestern Pacific populations, the National Marine Biodiversity Institute of Korea has been releasing artificially propagated sea turtles, but whether these individuals join the wild population remains unknown. The present study aimed to determine the movement patterns of artificially propagated juvenile loggerhead (Caretta caretta) and green (Chelonia mydas) turtles fitted with satellite transmitters on their carapaces and released in the waters of Jeju or Yeosu, Republic of Korea, between August 2018 and April 2022. Loggerheads traveled northward to the East Sea, whereas green turtles moved west or southwest. Two 36-month-old and two 48-month-old loggerheads moved toward their potential nursery grounds and toward their feeding grounds, respectively. Three green turtles with a curved carapace length (CCL) of <40 cm moved toward their nursery or feeding grounds, while three individuals (CCL > 45 cm) moved toward their inshore foraging areas. The travel paths were closely related to the direction of local sea currents. Our results implied that releasing artificially propagated sea turtles, considering their age and CCL, can positively contribute to the conservation of Northwestern Pacific populations.

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First record of the hawksbill turtle (Eretmochelys imbricata, Reptilia: Testudines: Cheloniidae) from South Korea

Cited by 4 publications

References 14 publications

Connectivity between sea turtles off Jeju Island on the Korean Peninsula, and other populations in the western Pacific

Connectivity between sea turtles off Jeju Island on the Korean Peninsula, and other populations in the western Pacific

Barnacle Epibiosis on Sea Turtles in Korea: A West Pacific Region With Low Occurrence and Intensity of Chelonibia testudinaria (Cirripedia: Chelonibiidae)

Movement Patterns of Juvenile Loggerhead Turtles (Caretta caretta L. 1758) and Green Turtles (Chelonia mydas L. 1758) Hatched in Captivity and Released in the Korean Waters

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