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Journal articles on the topic 'Turtle'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Will Helmina, Leony Regina. "Upaya Konservasi Penyu sebagai Penyelamat dari Ancaman Kepunahan dalam Perspektif Islam." Es-Syajar:Journal of Islam, Science and Technology Integration 2, no. 1 (2024): 153–59. http://dx.doi.org/10.18860/es.v2i1.18182.

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Turtle is one of the marine fauna that is protected because its existence is threatened with extinction. The high exploitation of turtles will threaten the sustainability of turtles in the future. Turtles are hunted a lot because of the high selling value of turtle body parts. The uniqueness of the shells on turtles to be used as accessories, until they are preserved for display is a common thing. In addition, the extinction of turtles also occurs because turtles are often trapped in fishing nets and turtles are carried by strong currents to hit coral which causes many turtle carcasses to be f

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Adi Eti Harnino, Taurus Zeno, I. Nyoman Yoga Parawangsa, Luthfiana Aprilianita Sari, and Sulastri Arsad. "Effectiveness of Sea Turtle Conservation Management at the Turtle Conservation and Education Center of Serangan, Denpasar Bali." Journal of Marine and Coastal Science 10, no. 1 (2021): 18. http://dx.doi.org/10.20473/jmcs.v10i1.25604.

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Turtles are one of the reptile animals that can migrate long distances along the Indian Ocean, Pacific Ocean and Southeast Asia. The purpose of turtle migration is to mate, find spawning locations and to find food. Sea turtles have an important role in maintaining the balance of the marine ecosystem. However, the high utilization of sea turtles by humans causes the turtle population to decline. One of the conservation sites that help the government program is in Serangan, Denpasar Bali, namely the TCEC (Turtle Conservation and Education Center), where there are several types of turtles such as

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Báez, José C., David Macías, Salvador García-Barcelona, and Raimundo Real. "Interannual Differences for Sea Turtles Bycatch in Spanish Longliners from Western Mediterranean Sea." Scientific World Journal 2014 (2014): 1–7. http://dx.doi.org/10.1155/2014/861396.

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Recent studies showed that regional abundance of loggerhead and leatherback turtles could oscillate interannually according to oceanographic and climatic conditions. The Western Mediterranean is an important fishing area for the Spanish drifting longline fleet, which mainly targets swordfish, bluefin tuna, and albacore. Due to the spatial overlapping in fishing activity and turtle distribution, there is an increasing sea turtle conservation concern. The main goal of this study is to analyse the interannual bycatch of loggerhead and leatherback turtles by the Spanish Mediterranean longline fish

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Setyoningrum, Desy, Aida Sartimbul, Defri Yona, et al. "The Strengthening of BSTC (Bajulmati Sea Turtle Conservation) in Sea Turtle Monitoring Activities in Gajahrejo Village, Malang Regency." Journal of Innovation and Applied Technology 10, no. 2 (2024): 13–18. https://doi.org/10.21776/ub.jiat.2024.10.02.003.

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Sea Turtles are a type ofreptile that predominantly inhabit marine environments, and their populations have experienced a significant decline due to various factors such as natural habitat destruction, marine pollution, predation, and commercial hunting. Conservation efforts are crucial to maintaining the sustainability of turtle populations. The Sea Turtle Conservation Area in Malang Regency, known as Bajulmati Sea Turtle Conservation (BSTC) Malang, has committed to caring for adult turtles, hatching eggs, and nurturing turtle hatchlings. However, these conservation activities have not been f

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Guimarães, Suzana Machado, Davi Castro Tavares, and Cassiano Monteiro-Neto. "Incidental capture of sea turtles by industrial bottom trawl fishery in the Tropical South-western Atlantic." Journal of the Marine Biological Association of the United Kingdom 98, no. 6 (2017): 1525–31. http://dx.doi.org/10.1017/s0025315417000352.

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The five sea turtle species occurring in Brazilian waters are susceptible to threats, including incidental catches by fisheries. Studies on incidental captures in fishing gears are the main focus of several conservation actions due to high sea turtle fishery mortality worldwide. This study provides the first evaluation of incidental sea turtle catches by industrial bottom trawl fisheries operating in Brazilian waters. Four twin-trawler vessels were monitored between July 2010 and December 2011 by captains who voluntarily completed logbooks. Forty-four turtles were captured during the 1996 tows

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Myers, Andrew T., and James P. Gibbs. "Landscape-level Factors Influencing Bog Turtle Persistence and Distribution in Southeastern New York State." Journal of Fish and Wildlife Management 4, no. 2 (2013): 255–66. http://dx.doi.org/10.3996/052012-jfwm-044.

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Abstract The bog turtle Glyptemys muhlenbergii is a highly endangered species inhabiting freshwater wetlands of the eastern United States. Habitat degradation is considered one of the chief causes of bog turtle declines. Most of the studies investigating habitat requirements of bog turtles focus on intrawetland influences on bog turtle habitat, but few have explored landscape-level drivers of bog turtle distribution. To better understand causes of bog turtle declines, we combined bog turtle occurrence records with geographic data to contrast 12 landscape variables among wetlands containing ext

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Fadli, S. N., N. H. Idris, M. J. Osman, N. Othman, and M. H. I. Ishak. "Spatial Distribution and the Influence of Surface Temperature and Green Area on Sea Turtle Nesting Sites in Peninsular Malaysia." IOP Conference Series: Earth and Environmental Science 1240, no. 1 (2023): 012012. http://dx.doi.org/10.1088/1755-1315/1240/1/012012.

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Abstract Malaysia is home to four of the seven sea turtles in the world, with Malaysian islands being one of the potential areas for sea turtle landing and nesting. However, sea turtles are classified as endangered species because they face extinction mainly due to land use changes, human marine activities, and environmental factors. As a result, they are now among the most important resources for ecotourism. Green turtles are the most prevalent species (endangered), while the hawksbill turtle is one of the world’s most seriously endangered marine turtle species today. Hence, considering the i

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Yudha, Donan Satria, Fidelis Triki Sadewa Aritona, and Rury Eprilurahman. "Characteristics of Shell Bone as an Identification Tool for Turtle Species (Reptiles: Testudines) in Java, Borneo, and Sumatra." Journal of Tropical Biodiversity and Biotechnology 5, no. 1 (2020): 35. http://dx.doi.org/10.22146/jtbb.47227.

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There are 42 species of turtles; including sea turtle, freshwater turtle, tortoise, and softshell turtle (Reptilia: Testudines) living in Indonesia today. Turtles have economic values for quite a long time and it has led to illegal trade such as smuggling of carapace and plastron bones. Identification is needed to find out more details about the turtle species. Turtles have shells as unique features with different characteristics on each species. Shell’s identification usually relies on the shape of carapace and plastron. The purpose of this research is to understand turtle shell morphological

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Sayuti, Mohammad, Ferliana Widasari, Ahmad Junaidi, Agung Setia Abadi, and Achmad Sofian. "EDUCATION ON HANDLING GREEN TURTLE (Chelonia mydas) INJURED DUE TO ILLEGAL ARREST OF COMMUNITY PERSONS IN SUPRAU VILLAGE." Buletin SWIMP 1, no. 02 (2021): 047–56. http://dx.doi.org/10.15578/bs.v1i02.12.

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The number of turtle populations from year to year has decreased. One of the causes is the arrests made by the community for consumption purposes. On April 29, 2021, a green turtle was eaten by the Directorate of Polair, Sorong City, with an injured condition that will be used as food for consumption. The purpose of this activity is to educate the public on the handling of injured turtles and socialize related to turtle conservation. The method of turtle handling activities is direct daily care with medication and turtle feeding programs, while socialization activities are carried out with min

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Dupuis-Desormeaux, Marc, Christina Davy, Amy Lathrop, et al. "Colonization and usage of an artificial urban wetland complex by freshwater turtles." PeerJ 6 (August 8, 2018): e5423. http://dx.doi.org/10.7717/peerj.5423.

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Conservation authorities invest heavily in the restoration and/or creation of wetlands to counteract the destruction of habitat caused by urbanization. Monitoring the colonization of these new wetlands is critical to an adaptive management process. We conducted a turtle mark-recapture survey in a 250 ha artificially created wetland complex in a large North American city (Toronto, Ontario). We found that two of Ontario’s eight native turtle species (Snapping turtle (SN), Chelydra serpentina, and Midland Painted (MP) turtle, Chrysemys picta marginata) were abundant and both were confirmed nestin

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Sri, Hidayat, Waluyo, and H. Buditami Bidari. "EFFECTIVENESS OF CONSERVATION MANAGEMENT OF OLIVE RIDLEY SEA TURTLES (LEPIDOCHELYS OLIVACEA) AT ABADI TURTLE CONSERVATION, TRISIK BEACH, KULONPROGO, YOGYAKARTA." Coastal and Ocean Journal (COJ) 8, no. 1 (2024): 41–52. https://doi.org/10.29244/coj.v8i1.53434.

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Turtles are an endangered biota around the world; one type is the Olive Ridley Turtle (Lepidochelys olivacea). Turtle extinction is caused by a decrease in the number of turtles laying eggs in their native habitat each year, hence turtle conservation is required in order to protect turtle populations. Turtle conservation in Indonesia is not yet deemed optimal; therefore, study on the effectiveness of turtle conservation, such as that of Olive Ridley Turtles at the Abadi Turtle Conservation, Trisik Beach, Kulonprogo, Yogyakarta, is required. This research was conducted in December 2022. This st

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Weir, Caroline R., Tamar Ron, Miguel Morais, and Agostinho Domingos C. Duarte. "Nesting and at-sea distribution of marine turtles in Angola, West Africa, 2000–2006: occurrence, threats and conservation implications." Oryx 41, no. 2 (2007): 224–31. http://dx.doi.org/10.1017/s003060530700186x.

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AbstractThe status of marine turtles in Angola, West Africa, is poorly known, and therefore during 2000–2006 a combination of both dedicated and opportunistic beach and at-sea turtle surveys were carried out, and interviews conducted with fishing communities and at markets. Green Chelonia mydas, olive ridley Lepidochelys olivacea, leatherback Dermochelys coriacea and loggerhead turtles Caretta caretta were recorded, and nesting of the first three species confirmed during September–March (peaking November–December). Green turtles nested mainly in the south, leatherback turtles in north and cent

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I Komang Arya Sentana Mahendra, Anak Agung Sagung Laksmi Dewi, and Luh Putu Suryani. "Penegakan Hukum Terhadap Tindak Pidana Penyelundupan Penyu sebagai Satwa Terlindungi di Bali." Jurnal Interpretasi Hukum 2, no. 2 (2021): 384–90. http://dx.doi.org/10.22225/juinhum.2.2.3445.384-390.

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Prohibition of all exploitation of protected animals. Even in the territory of Indonesia, turtle smuggling still occurs, especially in Bali Province where turtle smuggling often occurs. The purpouses of this research are to analyze the legal protection of turtles as protected animals and the criminal sanctions against the perpetrators of turtle smuggling as protected animals? The research method used is normative law, with statutory apporoach and conceptual approach. The results of the research show that forms of legal protection against turtles, if from the international agreement with the CI

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Hossain, M. A., M. S. E. Mahfuj, S. M. A. Rashid, and M. N. Ahsan. "Present status of conservation and management of sea turtle in Cox’s Bazar district, Bangladesh." Mesopotamian Journal of Marine Sciences 28, no. 1 (2022): 45–60. http://dx.doi.org/10.58629/mjms.v28i1.154.

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The study was conducted to know the present status of conservation and management of sea turtle in Cox’s Bazar district, Bangladesh. Two species of sea turtles have been making nest in Bangladesh. A total of 251 turtle individuals were found. The highest nesting frequency of Olive ridley (108) and Green turtles (10) were observed in February. About 21,942 hatchlings were produced and released by the hatcheries for conservational step. A total of one hundred people were selected randomly for taking interview to assess their knowledge and attitude towards sea turtle conservation and management.

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Hirth, Harold F., and Deborah L. H. Rohovit. "Marketing patterns of green and hawksbill turtles in Port Moresby, Papua New Guinea." Oryx 26, no. 1 (1992): 39–42. http://dx.doi.org/10.1017/s0030605300023218.

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Of the six species of marine turtle in Papua New Guinea, the green turtle Chelonia mydas and the hawksbill turtle Eretmochelys imbricata are the most common and the most utilized in the Port Moresby region. This paper describes a study carried out in 1989, which monitored the trade in green turtles in the country's main market and the sale of tortoiseshell in a major shopping centre. The price of turtle meat was higher than that of some common reef fish, but cost less when fish was abundant. The commercial trade in tortoiseshell appeared to be negligible. As the urban population increases it i

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Arthur, Karen E., Judith M. O'Neil, Colin J. Limpus, Kyler Abernathy, and Greg Marshall. "Using Animal-Borne Imaging to Assess Green Turtle (Chelonia mydas) Foraging Ecology in Moreton Bay, Australia." Marine Technology Society Journal 41, no. 4 (2007): 9–13. http://dx.doi.org/10.4031/002533207787441953.

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Traditional techniques for studying green turtle foraging ecology, such as the analysis of food availability and ingested dietary material, have concluded that green turtles are primarily herbivorous but selective foragers. However, green turtles that forage during Lyngbya majuscula blooms are exposed to toxins produced by the cyanobacterium overgrowing the seagrass. We used the Crittercam, an animal-borne imaging device, to observe green turtle foraging behavior in Moreton Bay, Australia, and to evaluate the system for assessing the impacts of Lyngbya blooms on green turtles. Eight large gree

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Xu, Cheng, Jiehao Xu, Yu Chen, Øystein Evensen, Hetron Mweemba Munang’andu, and Guoying Qian. "Immunization with Bovine Serum Albumin (BSA) in Oil-Adjuvant Elicits IgM Antibody Response in Chinese Soft-Shelled Turtle (Pelodiscus Sinensis)." Vaccines 8, no. 2 (2020): 257. http://dx.doi.org/10.3390/vaccines8020257.

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Immunoassays are among the frontline methods used for disease diagnosis and surveillance. Despite this, there are no immunoassays developed for the Chinese soft-shelled turtle (Pelodiscus sinensis), which has expanded into large scale commercial production in several Asian countries. One of the critical factors delaying the development of immunoassays is the lack of characterized soft-shelled turtle immunoglobulins. Herein, we used mass spectrometry together with the ProtQuest software to identify the soft-shelled turtle IgM heavy chain in serum, which again was used to produce a polyclonal an

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Tiara, A., M. D. Kusrini, A. Sunkar, and J. Guntoro. "Local Community’s Knowledge and Perception towards Freshwater Turtle Conservation in Southern Sumatra, Indonesia." Jurnal Manajemen Hutan Tropika (Journal of Tropical Forest Management) 31, no. 2 (2025): 99–113. https://doi.org/10.7226/jtfm.31.2.99.

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The conservation of freshwater turtles relies on local knowledge and perceptions. This phenomenon is especially significant for communities located near turtle habitats. This study aims to investigate the influence of local communities' knowledge and perceptions of freshwater turtles on their attitudes, behaviors, and the resulting conservation outcomes for these species. Knowledge encompasses the empirical understanding of turtle species, their ecological roles, and conservation statuses. Perceptions encompass the subjective beliefs, attitudes, and values influenced by culture that communitie

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Gunawan, Rasyidi, Arizal, and Dwi Ariyanto Kadek. "Empowering the Rural Community as Turtle Breeder: Case Studi of Dunu Village, Gorontalo Utara Regency." INTERNATIONAL JOURNAL OF MULTIDISCIPLINARY RESEARCH AND ANALYSIS 06, no. 07 (2023): 3201–5. https://doi.org/10.5281/zenodo.8177377.

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Turtles are marine reptiles that have existed on Earth for millions of years and have managed to survive until today. Turtles play a crucial role in the marine ecosystem, maintaining the balance of nature and contributing to marine biodiversity. The method used in this research is a qualitative approach, which includes conducting in-depth interviews, participatory observations, and analyzing relevant documents. The data obtained will be analyzed using descriptive and interpretative approaches to illustrate the process of empowering the rural community in Dunu Village. This research aims to und

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Werneck, M. R., and R. J. Da Silva. "Checklist of sea turtles endohelminth in Neotropical region." Helminthologia 53, no. 3 (2016): 211–23. http://dx.doi.org/10.1515/helmin-2016-0045.

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SummaryThis paper presents a list of parasites described in sea turtles from the Neotropical region. Through the review of literature the occurrence of 79 taxa of helminthes parasites were observed, mostly consisting of the Phylum Platyhelminthes with 76 species distributed in 14 families and 2 families of the Phylum Nematoda within 3 species. Regarding the parasite records, the most studied host was the green turtle (Chelonia mydas) followed by the hawksbill turtle (Eretmochelys imbricata), olive ridley turtle (Lepidochelys olivacea), loggerhead turtle (Caretta caretta) and leatherback turtle

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Browne, Constance L., S. Andrew Sullivan, and Donald F. McAlpine. "Freshwater turtle by-catch from angling in New Brunswick, Canada." Canadian Field-Naturalist 134, no. 3 (2020): 222–30. http://dx.doi.org/10.22621/cfn.v134i3.2437.

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Turtles are among the most threatened vertebrate taxa, with populations especially vulnerable to any increase in adult mortality. By-catch from freshwater angling, as a potential cause of turtle mortality is poorly documented and little understood. Here we document cases of turtle by-catch by recreational anglers in an urban park in New Brunswick and among the wider angling communities in the province. We also consider factors that may influence rates of hooking. Although we are unable to estimate turtle hooking frequency for the provincial recreational angling community as a whole, five of 75

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Rumbay, Julia Angel, Roni Koneri, Marnix Langoy, Eko Handoyo, and Pandu Wijaya. "Persepsi Kelompok Pemandu Wisata Terhadap Konservasi Penyu di Pesisir Pulau Bunaken, Taman Nasional Bunaken, Manado, Sulawesi Utara." Jurnal MIPA 11, no. 1 (2022): 38. http://dx.doi.org/10.35799/jm.v11i1.38902.

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Public perception of turtle conservation in an area will determine the success of turtle conservation activities. This study aims to analyze the perception of tour guide groups towards turtle conservation on the coast of Bunaken Island, Bunaken National Park, Manado, North Sulawesi. The research method was carried out by means of observation and surveys. Collecting data in the form of interviews with a questionnaire guide. The selection of respondents was carried out by purposive sampling with the target group of tour guides, especially dive guides. Data analysis was carried out using a qualit

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Li, Min, Cuijuan Niu, and Yixuan Chen. "Diverse Response Pattern to Anoxia in Three Freshwater Turtle Species." Biology 12, no. 1 (2022): 50. http://dx.doi.org/10.3390/biology12010050.

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With increasing water eutrophication and global warming, anoxia and hypoxia are becoming more and more common in water environments. Most vertebrates have a limited tolerance to anoxia of only a few minutes, but some species, such as turtles, can survive for months being exposed to anoxia. Antioxidant defense systems may have a potential role in resisting anoxia stress in freshwater turtles. The three-keeled pond turtle Chinemys reevesii, the snapping turtle Chelydra serpentina and the soft-shelled turtle Pelodiscus sinensis are three popular aquaculture species and share similar habitats in C

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Sunardi, Sunardi, Anton Yudhana, Azrul Mahfurdz, and Sharipah Salwa Mohamed. "Echo voltage reflected by turtle on various angles." International Journal of Advances in Intelligent Informatics 1, no. 1 (2015): 48. http://dx.doi.org/10.26555/ijain.v1i1.9.

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This research proposes the acoustic measurement by using echo sounder for green turtle detection of 1 year, 12 and 18 years. Various positions or angles of turtles are head, tail, shell, lung, left and right side. MATLAB software and echo sounder are used to analyse the frequency and the response of the turtle as echo voltage and target strength parameter. Based on the experiment and analysis have been conducted, the bigger size of the turtle, the higher echo voltage and target strength. The target strength of turtle for lung and shell for all ages are -26.52 dB and –26.17 dB respectively. The

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Mosnier, A., J. F. Gosselin, J. Lawson, S. Plourde, and V. Lesage. "Predicting seasonal occurrence of leatherback turtles (Dermochelys coriacea) in eastern Canadian waters from turtle and ocean sunfish (Mola mola) sighting data and habitat characteristics." Canadian Journal of Zoology 97, no. 5 (2019): 464–78. http://dx.doi.org/10.1139/cjz-2018-0167.

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Part of the western Atlantic population of leatherback turtles (Dermochelys coriacea (Vandelli, 1761)) forage in Canadian waters, where high-use areas have been identified using satellite telemetry and opportunistic sightings. Here, we use sightings of leatherback turtles and ocean sunfish (Mola mola (Linnaeus, 1758)) obtained during a systematic large-scale aerial survey, along with opportunistic turtle sightings, to examine the seasonal occurrence and distribution of leatherback turtles in eastern Canada. Using environmental correlates, we predict the spatial and seasonal development of pote

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Rahman Jayawangsa and Chandrika Eka Larasati. "Teknik Pelestarian Habitat Penyu Lekang (Lepidochelys olivacea) di Kawasan Konservasi Penyu Kurma Asih, Desa Perancak, Kabupaten Jembrana, Bali." Jurnal Ilmu Kelautan Lesser Sunda 4, no. 1 (2024): 14–20. https://doi.org/10.29303/jikls.v4i1.105.

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The Olive Ridley Sea Turtle population in Indonesia continues to decline due to natural and human factors. So it is necessary to conserve it so that its population does not become extinct. One of the conservation areas that protect sea turtle eggs is in the Kurma Asih Conservation Area, Perancak Village, Jembrana Regency, Bali. This study aims to observe and collect physical data on beach habitats that are considered suitable as sea turtle nesting habitats and collect data on Olive Ridley Sea Turtle tracks and nests in Perancak Village. Data collection is done by going directly to the field (m

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Tarigan, Aditya P., Ricardo F. Tapilatu, and Marthin Matulessy. "Suhu inkubasi, pasir pantai peneluran dan sukses penetasan telur penyu pada sarang semi alami di Pantai Warebar - Yenbekaki Distrik Waigeo Timur, Kabupaten Raja Ampat." Cassowary 3, no. 1 (2020): 21–31. http://dx.doi.org/10.30862/casssowary.cs.v3.i1.36.

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The research took place between May and October 2019, and divided into two stages. The first stage was field research to collect data by identifying turtles, calculating hatching successes, measuring the temperature of the nesting beach and nest temperature of each species of turtle in semi-natural nests at Warebar Beach, Yenbekaki village, East Waigeo Sub District, Raja Ampat. The second stage after the field was conducting an analysis of hatching rate in hatchery, sand temperature and nest temperature for each species of turtle. The species of turtles nesting at Warebar Beach are olive-ridle

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Febrinal, Febrinal, Azzahrah Khairunnisa Mardhiyah, Maysyarah Ardiana, Zultsatunni’mah Zultsatunni’mah, Pati Hariyose, and FITRA ARYA DWI NUGRAHA. "Sosialization of Sea Turtle Under Threatened in Pasir Jambak." Pelita Eksakta 2, no. 2 (2019): 148. http://dx.doi.org/10.24036/pelitaeksakta/vol2-iss2/72.

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All sea turtles are listed as endangered and critically endangered by IUCN Red List due to human consumption and lifestyle. In West Sumatra, Pasir Jambak Beach is an important habitat for nesting of sea turtles, but human activities in this area becomes serious threats for sea turtles. Based on our interview, the local people of Pasir Jambak still consume the sea turtle eggs and mistaken for the effect of this egg to human. During our activity, we share our knowledge especially to the children of Pasir Jambak, hoping that they will not continue the habit of consuming the sea turtle egg, and be

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Mascovich, Katie A., Lincoln R. Larson, and Kimberly M. Andrews. "Talking Turtles With Tourists: Evaluating the Relative Conservation Impacts of Different Types of Sea Turtle Education Programs at Jekyll Island, GA, USA." Journal of Interpretation Research 28, no. 1 (2023): 95–120. http://dx.doi.org/10.1177/10925872231157608.

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We used a pre-post survey approach to compare learning and conservation-focused behavioral outcomes for tourists participating in two different types of field-based wildlife education programs at the Jekyll Island Authority Georgia Sea Turtle Center (GSTC) on Jekyll Island, GA, USA: a low-interaction program ( n = 59) led by education guides that featured minimal direct contact between visitors and sea turtles, and a high-interaction program ( n = 42) led by turtle biologists that featured more intimate interactions between visitors and turtles. Both programs revealed comparable positive effec

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Pratama, Vian Dedi, Sukandar Sukandar, Marjono Marjono, and Andi Kurniawan. "Suitability Analysis of Habitat and Ecotourism of Olive Ridley Sea Turtle (Lepidochelys olivacea) in Development of Turtle Conservation Strategy at Taman Kili-Kili Beach." Economic and Social of Fisheries and Marine Journal 009, no. 01 (2021): 86–100. http://dx.doi.org/10.21776/ub.ecsofim.2021.009.01.07.

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Taman Kili-Kili Beach is designated as an Essential Ecosystem Area (KEE). 188/39/KPTS/013/2020. According to the Supervisory Community Group (Pokmaswas), in 2011-2020, there was an increase in broodstock as many as 52 turtles, and the eggs saved as many as 3323 eggs. However, since 2013 Pokmaswas data shows a decrease in the population of hawksbill and green turtles in turtle conservation areas, which is thought to be caused by climate change, global warming, and animals. This study aims to analyze environmental baselines, turtle populations, and the value of turtle ecotourism (ecological, eco

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Khetrin, Enjelin, Gunawan Widi Santoso, and Ervia Yudiati. "Percentage of Hatching Success of Olive Ridley Turtle (Lepidochelyis oliviceae) Eggs in Natural and Semi-Natural Nests and the Quality of the Turtle Conservation Community (TCC), Lombok, Indonesia." Journal of Marine Biotechnology and Immunology 2, no. 3 (2024): 12–26. http://dx.doi.org/10.61741/g534fv37.

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Sea turtles are internationally and nationally protected marine reptiles. One of the turtle species that can be found in Indonesia is the Olive Ridley turtle or Lepidochelys oliviceae. This study aims to determine the percentage of hatching success of turtle eggs in semi-natural and natural nests at TCC (Turtle Conservation Community), Lombok, determine the physical characteristics of natural and semi-natural nests of turtle eggs, and determine the quality of hatchlings produced in natural and semi-natural nests. The research method used is the descriptive exploration method, including determi

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Rini, Indri Putri Sekar, Dimas Wahyu Anggara, Ardy Ardy, et al. "POPULATION STUDIES OF SEA TURTLE IN BA'BATOA LAPEO BEACH POLEWALI MANDAR REGENCY, WEST SULAWESI, INDONESIA." Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology 20, no. 3 (2024): 148–51. https://doi.org/10.14710/ijfst.20.3.148-151.

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Sea turtles are marine biota that have an important role in the lives of coastal communities, but their existence has decreased due to threats to their habitat. The protection status of sea turtles has been regulated nationally and internationally, where they are fully protected. One location with potential sea turtle habitat in West Sulawesi is Ba'batoa Lapeo Beach in Polewali Mandar Regency. This is evidenced by the existence of community groups that carry out sea turtle conservation activities. This research analyzes the population of landed sea turtles, analyzes the success rate of hatchin

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Carstairs, Sue, Marc Dupuis-Desormeaux, and Christina M. Davy. "Revisiting the hypothesis of sex-biased turtle road mortality." Canadian Field-Naturalist 132, no. 3 (2019): 289–95. http://dx.doi.org/10.22621/cfn.v132i3.1908.

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Road mortality poses a major threat to turtle populations. Several studies have suggested that the terrestrial movements associated with nesting increase this risk for females. The Ontario Turtle Conservation Centre (OTCC) is home to the Kawartha Turtle Trauma Centre, which admits 900 or more turtles a year, with road injuries the primary cause of admission. We tested the hypothesis that road mortality in turtles is female-biased using data from injured Midland Painted Turtles (Chrysemys picta marginata), Snapping Turtles (Chelydra serpentina), Blanding’s Turtles (Emydoidea blandingii), and No

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KARL, HANS-VOLKER, GOTTFRIED TICHY, and AMTYAZ SAFI. "New insight into the paleobiology and systematics of the Mesozoic turtles of central europe (Chelonipus triunguis Karl & Tichy, 2000; Priscochelys hegnabrunnensis Karl, 2005) and their morphological relationship with the toothed turtle (Odontochelys semitestacea Li et al ., 2008) of china." Mesozoic 2, no. 2 (2025): 143–54. https://doi.org/10.11646/mesozoic.2.2.4.

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The origin of the turtle body plan remains one of the great mysteries of reptile evolution. To establish the relationships between turtles of different clades in palaeobiological aspects is highly difficult. Here we describe a review of the oldest Mesozoic turtles of Central Europe (Chelyopsis triunguis; Priscochelys hegnabrunnensis) and their morphological relationship with the toothed turtle (Odontochelys semitestacea) of China. P. hegnabrunnensis is a fossil turtle from the Middle Triassic (lower Ladinian) of Hegnabrunn, Germany. It is known from a single, fragmentary shell plate and is con

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Yu, Ziyi. "Analysis on Global Sea Turtle Conservation." Transactions on Environment, Energy and Earth Sciences 3 (November 26, 2024): 396–401. https://doi.org/10.62051/7xj10s62.

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Climate change is a major concern to sea turtle populations, notably in terms of temperature-dependent sex determination (TSD) and sea level rise. TSD is a biological mechanism that decides the sex of turtle hatchlings dependent on hatching temperature, and with global warming, sex ratios are becoming increasingly imbalanced. Furthermore, increasing sea levels endanger vital nesting locations, aggravating the threat to turtle populations. This article investigates these climate-related concerns while also looking at various habitat restoration strategies. Strategies such as collaborating with

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Ananta. "Desain Produk Cenderamata Berbasis Konsep Metafora dari Konservasi Penyu di Sindu Dwarawati Turtle Conservation." Meraki: Journal of Creative Industries 2, no. 01 (2024): 20–29. https://doi.org/10.24123/meraki.v2i01.6960.

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This study describes the process of designing souvenir products based on the metaphorical concept derived from the conservation of green turtles at Sindu Dwarawati Turtle Conservation, Sindu Beach, Sanur, Denpasar. The metaphorical concept serves as the foundation for capturing the form and anatomical characteristics of the green turtle to design products that are not only aesthetically pleasing but also carry profound meaning in the context of environmental conservation. Qualitative methods were employed, involving direct interviews with the Chairman of Sindu Dwarawati Turtle Conservation, I

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Rakotonirina, Berthin, and Andrew Cooke. "Sea turtles of Madagascar – their status, exploitation and conservation." Oryx 28, no. 1 (1994): 51–61. http://dx.doi.org/10.1017/s0030605300028295.

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Five species of sea turtles are known from Madagascar's coastal waters. Fishermen on the western and south-western coasts take green turtle Chelonia mydas, loggerhead turtle Caretta caretta and olive ridley Lepidochelys olivacea for their meat. The hawksbill turtle Eretmochelys imbricata is taken mainly for its shell and for making stuffed specimens while the leatherback Dermochelys coriacea is seldom caught. Anecdotal evidence of fishermen and dealers in turtle products, measurement of captured animals and personal observations of the authors all point to declines in numbers and average size

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Kennett, Rod, N. Munungurritj, and Djawa Yunupingu. "Migration patterns of marine turtles in the Gulf of Carpentaria, northern Australia: implications for Aboriginal management." Wildlife Research 31, no. 3 (2004): 241. http://dx.doi.org/10.1071/wr03002.

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Marine turtles regularly migrate hundreds to thousands of kilometres between nesting beaches and home foraging grounds. Effective conservation of marine turtles requires understanding of migration patterns in order to facilitate regional cooperation across the turtles' migratory range. Indigenous Australians maintain traditional rights and responsibilities for marine turtle management across much of the northern Australian coast. To better understand turtle migrations and identify with whom the Aboriginal people of north-east Arnhem Land (Yolngu) share turtles, we used satellite telemetry to t

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Glorioso, Brad M., Allison J. Vaughn, and J. Hardin Waddle. "The Aquatic Turtle Assemblage Inhabiting a Highly Altered Landscape in Southeast Missouri." Journal of Fish and Wildlife Management 1, no. 2 (2010): 161–68. http://dx.doi.org/10.3996/072010-jfwm-020.

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Abstract Turtles are linked to energetic food webs as both consumers of plants and animals and prey for many species. Turtle biomass in freshwater systems can be an order of magnitude greater than that of endotherms. Therefore, declines in freshwater turtle populations can change energy transfer in freshwater systems. Here we report on a mark–recapture study at a lake and adjacent borrow pit in a relict tract of bottomland hardwood forest in the Mississippi River floodplain in southeast Missouri, which was designed to gather baseline data, including sex ratio, size structure, and population si

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Maldonado-Gasca,, A., and M. Zapata-Rosales. "PRIMEROS REGISTROS DE TORTUGAS BLANCAS Chelonia mydas CON FIBROPAPILOMAS, EN YUCATÁN, MÉXICO." CICIMAR Oceánides 22, no. 1-2 (2007): 29. http://dx.doi.org/10.37543/oceanides.v22i1-2.35.

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First reports of green turtles Chelonia mydas with fibropapillomas, in Yucatán, México Fibropapillomas are cutaneous tumors that affect the health of marine turtles worldwide. In July 11th of 1998, a juvenile green turtle (Chelonia mydas) with tumors was captured by fishermen in the Sea Turtles Sanctuary of Rio Lagartos, Yucatán. The straight carapace length of this turtle was 44.6 cm, and we found 30 tumors with a size from 1 cm - 10 cm on the back flippers, neck, front flippers and in both eyes. On July 10th, 1999, another juvenile green turtle with fibropapillomatosis was captured by fisher

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Maldonado-Gasca,, A., and M. Zapata-Rosales. "PRIMEROS REGISTROS DE TORTUGAS BLANCAS Chelonia mydas CON FIBROPAPILOMAS, EN YUCATÁN, MÉXICO." CICIMAR Oceánides 22, no. 1-2 (2007): 29. http://dx.doi.org/10.37543/oceanides.v22i1-2.35.

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First reports of green turtles Chelonia mydas with fibropapillomas, in Yucatán, México Fibropapillomas are cutaneous tumors that affect the health of marine turtles worldwide. In July 11th of 1998, a juvenile green turtle (Chelonia mydas) with tumors was captured by fishermen in the Sea Turtles Sanctuary of Rio Lagartos, Yucatán. The straight carapace length of this turtle was 44.6 cm, and we found 30 tumors with a size from 1 cm - 10 cm on the back flippers, neck, front flippers and in both eyes. On July 10th, 1999, another juvenile green turtle with fibropapillomatosis was captured by fisher

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Rauzana, Anita, Lenni Fitri, Yekki Yasmin, Suwarno Suwarno, and Wira Dharma. "Konservasi Penyu Di Pantai Pasi Jalang, Lhoknga, Kabupaten Aceh Besar." COMSEP: Jurnal Pengabdian Kepada Masyarakat 4, no. 3 (2022): 266–72. http://dx.doi.org/10.54951/comsep.v3i3.309.

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The Lhoknga beach area is one of the areas in Aceh that has beautiful beaches and enormous potential for marine wealth, including turtles. This area is a paradise for turtles to lay their eggs. Turtles are reptiles living in the sea and whose existence has long been threatened by nature and human activities. Internationally, sea turtles are included in the 'red list' in the International Union for Conservation of Nature and Natural Resources (IUCN), which means that their existence in nature is threatened with extinction, so all forms of utilization and distribution must receive serious attent

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Sterli, Juliana. "A new, nearly complete stem turtle from the Jurassic of South America with implications for turtle evolution." Biology Letters 4, no. 3 (2008): 286–89. http://dx.doi.org/10.1098/rsbl.2008.0022.

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Turtles have been known since the Upper Triassic (210 Myr old); however, fossils recording the first steps of turtle evolution are scarce and often fragmentary. As a consequence, one of the main questions is whether living turtles (Testudines) originated during the Late Triassic (210 Myr old) or during the Middle to Late Jurassic ( ca 160 Myr old). The discovery of the new fossil turtle, Condorchelys antiqua gen. et sp. nov., from the Middle to Upper Jurassic ( ca 160–146 Myr old) of South America (Patagonia, Argentina), presented here sheds new light on early turtle evolution. An updated clad

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Julyansyah, Teddy, Deddy Bakhtiar, and Ari Anggoro. "Analisis Akustik Target Strength Penyu Hijau (Chelonia Mydas) Melalui Pengukuran Secara Terkontrol Pada Frekuensi 200 kHz." Barakuda 45: Jurnal Ilmu Perikanan dan Kelautan 3, no. 2 (2021): 94–108. http://dx.doi.org/10.47685/barakuda45.v3i2.158.

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ABSTRACT Turtles are reptiles that live in the sea and are able to migrate over long distances along the Indian Ocean, Pacific Ocean and Southeast Asia. Currently the number of turtle populations in nature has greatly decreased. This population decline is caused by natural factors and human activities that endanger the population directly or indirectly. At this time the tagging set technique (ID tag code) is a method that is often used to detect the presence of turtles by attaching tags to female turtles who are landing to lay eggs on the beach or while in captivity or the discovery of t

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Delu, Vikram, Vinod Karwasra, and Ashish Panda. "Conservation of two freshwater turtle species in the Guru Gorakhnath Community Reserve in Western Haryana, India." Reptiles & Amphibians 31, no. 1 (2024): e20609. http://dx.doi.org/10.17161/randa.v31i1.20609.

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The active involvement of local communities in conservation efforts is pivotal in ensuring the long-term protection and preservation of our natural environment. In the village of Kajalheri, located in Fatehabad district, the environmentally conscious Bishnoi community has been engaged in the conservation of the Indian soft-shell turtle (Nilssonia gangetica) population in the village pond for nearly a century. As a testament to their efforts, the pond was officially designated as a community reserve in 2019 to safeguard these turtles. Previously, the Indian soft-shell turtle was the sole known

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Karson, Alyson, Siow Yan Jennifer Angoh, and Christina M. Davy. "Depredation of gravid freshwater turtles by Raccoons (Procyon lotor)." Canadian Field-Naturalist 132, no. 2 (2019): 122–25. http://dx.doi.org/10.22621/cfn.v132i2.2043.

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During summer 2017, we found 19 dead or fatally wounded adult female turtles belonging to three at-risk species at a nesting site on the north shore of Lake Erie, Ontario. Individuals were found flipped onto their carapace, had similar holes in their body cavities, and were eviscerated. Their eggs had also been consumed. Although turtle nest depredation by Raccoons (Procyon lotor) is common, it is unusual for them to target large numbers of gravid turtles within a season. Depredated species included Snapping Turtle (Chelydra serpentina), Northern Map Turtle (Graptemys geographica), and Blandin

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Chou, Wei-Rung, Po-Yu Wu, and Tsung-Hsien Li. "Assessing the Relationship between Sea Turtle Strandings and Anthropogenic Impacts in Taiwan." Journal of Marine Science and Engineering 11, no. 10 (2023): 1962. http://dx.doi.org/10.3390/jmse11101962.

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Data acquired from stranded sea turtles can provide awareness of human activities that adversely affect sea turtle populations. We assessed strandings of five sea turtle species between 2017 and 2021. This study utilizes principal component analysis (PCA) and structural equation modeling (SEM) to reveal potential causes of sea turtle strandings linked to anthropogenic effects in Taiwan. Although our study did not observe a statistically significant impact of offshore wind turbines on sea turtle strandings, it did find evidence of a significant direct effect of coral colony density, heavy metal

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Ahsan, M. Farid, Shital Kumar Nath, and Ashim Barua. "Conservation of sea turtles on the beach areas from Sonadia Island to Saint Martin’s Island in the Bay of Bengal in Bangladesh." Journal of Threatened Taxa 16, no. 12 (2024): 26213–24. https://doi.org/10.11609/jott.9194.16.12.26213-26224.

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Five species of sea turtle are known to nest on the coastal beaches of Bangladesh: Loggerhead Sea Turtle Caretta caretta, Green Sea Turtle Chelonia mydas, Hawksbill Sea Turtle Eretmochelys imbricata, Olive Ridley Turtle Lepidochelys olivacea, and Leatherback Sea Turtle Dermochelys coriacea. Olive Ridleys are more common than Green Turtles, and the others are very rare. Sea turtle hatcheries were visited on the Bay of Bengal beaches running from Sonadia Island to the Saint Martin’s Island Beaches of Cox’s Bazar in Bangladesh, from January to March 2022. During this period 22 hatcheries were fou

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Dubey, K. P., Niraj Kumar, N. K. Janoo, et al. "Community-led turtle conservation in the Rivers Ganga and Ramganga, Uttar Pradesh, India." Reptiles & Amphibians 32, no. 1 (2025): e21505. https://doi.org/10.17161/randa.v32i1.21505.

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The Gangetic River System in Uttar Pradesh, India, supports 14 species of turtles. Excessive riverbedfarming has encroached on turtle habitat used for nesting and basking. To conserve threatened turtles in the UpperGanga, an in-situ turtle conservation program was initiated jointly by the Uttar Pradesh Forest Department andWWF-India in 2012 to engage the community in turtle conservation. The local riparian community was sensitizedand mobilized to participate in conservation efforts. Turtles and the Ganga River have religious significance and arehonored by the local riparian community, which en

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Rodriguez, AR, and KL Heck Jr. "Green turtle herbivory and its effects on the warm, temperate seagrass meadows of St. Joseph Bay, Florida (USA)." Marine Ecology Progress Series 639 (April 2, 2020): 37–51. http://dx.doi.org/10.3354/meps13285.

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Green turtles Chelonia mydas occur sporadically in tropical and subtropical latitudes, but effective conservation efforts are leading to increasing abundances at higher latitudes. One consequence of increased green turtle abundance in some locations has been the overgrazing of seagrasses, their preferred food item. Recent, large increases in juvenile green turtle abundance in the warm temperate northern Gulf of Mexico, especially in the clear waters of St Joseph Bay, FL, make this a prime location to study effects of their feeding activities on the extensive turtlegrass Thalassia testudinum-do

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