DIE LEDERSCHILDKRÓTE DERMOCHELYS CORIACEA L. IN KOLUMBIEN

Bulletin of Marine and Coastal Research ◽

10.25268/bimc.invemar.1971.5.0.575 ◽

2016 ◽

Vol 5 ◽

Author(s):

Reinhard Kaufmann

Keyword(s):

Natural History ◽

Sea Turtle ◽

Dermochelys Coriacea ◽

Long Beach ◽

Caribbean Coast ◽

Loggerhead Sea Turtle ◽

Leatherback Turtle ◽

First Report ◽

Nesting Behaviour ◽

The Caribbean

This is the first report of the leatherback turtle, Dermochelys coriacea, nesting on the Caribbean coast of Colombia. On a 7.5 km long beach east of Santa Marta, in 1970 7 nesting females, 4 other nests, and 7 emergences of hatchlings were observed. Some natural history notes in comparison with the nesting behaviour of the loggerhead sea turtle are given. Two of the females were tagged with tags numbered D 602 and D 605 (Gainesville), one of them reobserved nesting again at the same beach, 20 days later.

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First study of sea turtle strandings in Algeria (western Mediterranean) and associated threats: 2016–2017

Herpetozoa ◽

10.3897/herpetozoa.33.e48541 ◽

2020 ◽

Vol 33 ◽

pp. 113-120

Author(s):

Alae Eddine Belmahi ◽

Youcef Belmahi ◽

Mouloud Benabdi ◽

Amaria Latefa Bouziani ◽

Samira Ait Darna ◽

...

Keyword(s):

Chelonia Mydas ◽

Sea Turtle ◽

Western Mediterranean ◽

Dermochelys Coriacea ◽

Adult Size ◽

The West ◽

Loggerhead Sea Turtle ◽

Leatherback Turtle ◽

Loggerhead Turtles ◽

Algerian Coast

Between December 2015 and December 2017 a total of 63 sea turtles were recorded as being stranded along the Algerian coast. The loggerhead sea turtle Caretta caretta was the most commonly stranded species (n = 44) (69.8%), followed by the leatherback Dermochelys coriacea (n = 18) (28.6%) and the green turtle Chelonia mydas (n = 1). There was a slight dominance of the adult size class for stranded loggerhead turtles, while, for the leatherback, late juveniles and adults prevailed. Most loggerhead turtles stranded during the summer months (July and August), whereas most leatherbacks stranded during winter. The breakdown of the strandings by region shows a slight dominance along the western and central shores for C. caretta and a clear dominance in the west for D. coriacea. The primary cause of death was determined in 50.8% of the stranded turtles. Regarding the evidence of interactions with humans the major cause of stranding in loggerhead turtles was incidental catch by artisanal fisheries, followed by boats’ collisions. The main causes of leatherback strandings were boats’ collisions. Algerian data show that human activities affect loggerhead turtles and also prove a significant presence of the leatherback turtle on this coast.

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Globally significant nesting of the leatherback turtle (Dermochelys coriacea) on the Caribbean coast of Colombia and Panama

Biological Conservation ◽

10.1016/j.biocon.2008.05.012 ◽

2008 ◽

Vol 141 (8) ◽

pp. 1982-1988 ◽

Cited By ~ 20

Author(s):

Juan Patino-Martinez ◽

Adolfo Marco ◽

Liliana Quiñones ◽

Brendan Godley

Keyword(s):

Dermochelys Coriacea ◽

Caribbean Coast ◽

Leatherback Turtle ◽

The Caribbean

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Quantifying Illegal Extraction of Sea Turtles in Costa Rica

Frontiers in Conservation Science ◽

10.3389/fcosc.2021.705556 ◽

2021 ◽

Vol 2 ◽

Author(s):

Helen Pheasey ◽

George Glen ◽

Nicole L. Allison ◽

Luis G. Fonseca ◽

Didiher Chacón ◽

...

Keyword(s):

Costa Rica ◽

Sea Turtles ◽

Chelonia Mydas ◽

Sea Turtle ◽

Wildlife Trade ◽

Caribbean Coast ◽

Turtle Species ◽

Illegal Wildlife Trade ◽

The Caribbean ◽

The Impact

Estimates of illegal wildlife trade vary significantly and are often based on incomplete datasets, inferences from CITES permits or customs seizures. As a result, annual global estimates of illegal wildlife trade can vary by several billions of US dollars. Translating these figures into species extraction rates is equally challenging, and estimating illegal take accurately is not achievable for many species. Due to their nesting strategies that allow for census data collection, sea turtles offer an exception. On the Caribbean coast of Costa Rica, three sea turtle species (leatherback, Dermochelys coriacea; green, Chelonia mydas; and hawksbill, Eretmochelys imbricata) are exploited by poachers. Despite the consumption of turtle eggs and meat being illegal, they are consumed as a cultural food source and seasonal treat. Conservation programmes monitor nesting beaches, collect abundance data and record poaching events. Despite the availability of robust long-term datasets, quantifying the rate of poaching has yet to be undertaken. Using data from the globally important nesting beach, Tortuguero, as well as beaches Playa Norte and Pacuare on the Caribbean coast of Costa Rica, we modelled the spatial and temporal distribution of poaching of the three sea turtle species. Here, we present data from 2006 to 2019 on a stretch of coastline covering c.37 km. We identified poaching hotspots that correlated with populated areas. While the poaching hotspots persisted over time, we found poaching is declining at each of our sites. However, we urge caution when interpreting this result as the impact of poaching varies between species. Given their low abundance on these beaches, the poaching pressure on leatherback and hawksbill turtles is far greater than the impact on the abundant green turtles. We attribute the decline in poaching to supply-side conservation interventions in place at these beaches. Finally, we highlight the value of data sharing and collaborations between conservation NGOs.

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Strandings of sea turtles on beaches around the oil capital in Brazil

Neotropical Biology and Conservation ◽

10.3897/neotropical.16.e68662 ◽

2021 ◽

Vol 16 (4) ◽

pp. 521-538

Author(s):

Raísa da Silva Costa Rêgo ◽

Eric Azevedo Cazetta ◽

Caio Henrique Gonçalves Cutrim ◽

Amanda Soares Miranda ◽

Ana Paula Albano Araújo ◽

...

Keyword(s):

Sea Turtles ◽

Chelonia Mydas ◽

Sea Turtle ◽

The State ◽

Dermochelys Coriacea ◽

Anthropogenic Factors ◽

Long Beach ◽

Eretmochelys Imbricata ◽

Lepidochelys Olivacea ◽

The North

The south-western region of the Atlantic Ocean has feeding and nesting areas for the five species of sea turtles registered in Brazil, which are in different degrees of extinction threat, mainly due to anthropogenic factors. Fishing and the ingestion of solid waste, were identified as causing stranding and the mortality of sea turtles. In this work, data from the monitoring of beaches in the Municipalities of Macaé and Rio das Ostras, important oil zone in Brazil, in the north-central region of the State of Rio de Janeiro, were used in order to analyse the effects of seasonality on the sea turtle stranding. The monitoring was carried out daily from September 2017 to June 2019, in a study area covering 23.8 km long beach. Stranding data were obtained from active (n = 126) and passive (n = 66) monitoring of beaches and included the records of Chelonia mydas (n = 151), Caretta caretta (n = 23), Lepidochelys olivacea (n = 14), Dermochelys coriacea (n = 2) and Eretmochelys imbricata (n = 1). The largest stranding record occurred in the summer (n = 61) and spring (n = 60), a period compatible with the reproductive season of the species. The results obtained in this study emphasise the importance of the analysis of strandings of sea turtles, which provide relevant data on the biology of the group, the intra and interspecific dynamics and the state of conservation of these animals.

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Does prey size matter? Novel observations of feeding in the leatherback turtle ( Dermochelys coriacea ) allow a test of predator–prey size relationships

Biology Letters ◽

10.1098/rsbl.2011.0965 ◽

2011 ◽

Vol 8 (3) ◽

pp. 351-354 ◽

Cited By ~ 27

Author(s):

Sabrina Fossette ◽

Adrian C. Gleiss ◽

James P. Casey ◽

Andrew R. Lewis ◽

Graeme C. Hays

Keyword(s):

Energy Intake ◽

Prey Size ◽

General Pattern ◽

Sea Turtle ◽

Dermochelys Coriacea ◽

Intake Rate ◽

Large Prey ◽

Small Individual ◽

Leatherback Turtle ◽

Size Matter

Optimal foraging models predict that large predators should concentrate on large prey in order to maximize their net gain of energy intake. Here, we show that the largest species of sea turtle, Dermochelys coriacea , does not strictly adhere to this general pattern. Field observations combined with a theoretical model suggest that a 300 kg leatherback turtle would meet its energetic requirements by feeding for 3–4 h a day on 4 g jellyfish, but only if prey were aggregated in high-density patches. Therefore, prey abundance rather than prey size may, in some cases, be the overriding parameter for foraging leatherbacks. This is a classic example where the presence of small prey in the diet of a large marine predator may reflect profitable foraging decisions if the relatively low energy intake per small individual prey is offset by high encounter rates and minimal capture and handling costs. This study provides, to our knowledge, the first quantitative estimates of intake rate for this species.

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Checklist of sea turtles endohelminth in Neotropical region

Helminthologia ◽

10.1515/helmin-2016-0045 ◽

2016 ◽

Vol 53 (3) ◽

pp. 211-223 ◽

Cited By ~ 5

Author(s):

M. R. Werneck ◽

R. J. Da Silva

Keyword(s):

Sea Turtles ◽

Loggerhead Turtle ◽

Chelonia Mydas ◽

Neotropical Region ◽

Dermochelys Coriacea ◽

Olive Ridley ◽

Eretmochelys Imbricata ◽

Leatherback Turtle ◽

Lepidochelys Olivacea ◽

The Caribbean

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 (Dermochelys coriacea). Overall helminths were reported in 12 countries and in the Caribbean Sea region. This checklist is the largest compilation of data on helminths found in sea turtles in the Neotropical region.

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FIRST RECORD OF THE LOBSTER ENOPLOMETOPUS ANTILLENSIS LÜTKEN, 1865 (DECAPODA: ASTACIDEA: ENOPLOMETOPIDAE) FROM THE COLOMBIAN CARIBBEAN, WITH ANNOTATIONS ON ITS REPRODUCTIVE STRUCTURES

Bulletin of Marine and Coastal Research ◽

10.25268/bimc.invemar.2005.34.0.271 ◽

2016 ◽

Vol 34 ◽

Author(s):

Lina Ceballos ◽

Irene Valderrama ◽

Néstor Hernando Campos

Keyword(s):

First Record ◽

Caribbean Coast ◽

First Report ◽

Reproductive Structures ◽

The Caribbean

This is the first report of Enoplometopus antillensis from the Caribbean coast of Colombia. Eleven specimens were collected between 10 m and 25 m of depth. The morphology of the external reproductive structures were described and illustrated.

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Leatherback turtles (Dermochelys coriacea) in the Gulf of Venezuela: An update stranding assessment 2001-2014

Marine and Fishery Sciences (MAFIS) ◽

10.47193/mafis.3412021010305 ◽

2021 ◽

Vol 34 (1) ◽

Author(s):

Daniela Rojas-Cañizales ◽

Nínive Espinoza-Rodríguez ◽

María Alejandra Rodríguez ◽

Jordano Palmar ◽

María Gabriela Montiel-Villalobos ◽

...

Keyword(s):

Dry Season ◽

Dermochelys Coriacea ◽

Leatherback Turtles ◽

Leatherback Turtle ◽

Fisheries Bycatch ◽

The Caribbean ◽

Minimum Estimate ◽

The Impact

Leatherback turtle (Dermochelys coriacea) is highly impacted by fisheries’ bycatch worldwide. This study updates and estimates the leatherback turtle stranding records from 2001 to 2014 in the Gulf of Venezuela. Eighty-six stranded leatherback turtles were documented in the coast of the Gulf of Venezuela. Immature leatherback turtles were the most affected (85.1%) and the highest number of strandings were recorded during the dry season (55.8%). Our findings represent the minimum estimate of stranding events for the Gulf of Venezuela, especially considering the current lack of fisheries regulations. This is the latest update for the leatherback turtle strandings in the Gulf of Venezuela and could help to create new management solutions in the area aiming to minimize the impact on leatherback turtle populations in the Caribbean.

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