Samuel Pinya Fernández

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• Ph.D. Dept. Biology, University of the Balearic Islands
• Professor at University of the Balearic Islands

Fallow deer (Dama dama) is a species that was introduced on the island of Mallorca between the Talayotic and Roman times. For centuries it was abundant but during the seventeenth century it became extinct. Since 1997, specific observations of isolated individuals and family groups have been recorded. Here we report a list of records that arises the...

The introduction of species is a major threat to biodiversity conservation. Island biodiversity is especially sensitive to the arrival of new species, and species introductions are one of the major concerns of conservation management policies. Here, we report for the first time the arrival of Callinctes sapidus, a new potentially invasive crab spec...

A first record for Plagionotus arcuatus (Linnaeus, 1758) in the Balearic Islands is documented through firewood pathway. This pathway is novel for the Balearic Islands, consequently biosecurity protocols at the archipelago should be activated in order to prevent the arrival of new alien species that could affect insular biodiversity.

The Mediterranean Sea is one of the most affected areas by the presence of invasive species. Halimeda incrassata (J Ellis) JV Lamoroux is newly arrived tropical seaweed in waters of the Mallorca Island (Balearic Islands, Western Mediterranean). The aim was to evaluate the effect of a potential competition between the invasive Halimeda incrassata, t...

Traditional Mediterranean diet includes the halophyte Crithmum maritimum L. (Apiaceae) which can be found in coastline of the Balearic Islands but also inland. Both areas differed in the environmental conditions, mainly in salinity which can affect the oxidative status of this species. The aim was to evaluate the antioxidant enzyme activities, poly...

Human activities increasingly threaten marine ecosystems through rising waste and temperatures. This study investigated the role of plastics as vectors for Vibrio bacteria and the effects of temperature on the marine sponge Sarcotragus spinosulus. Samples of plastics and sponges were collected during July, August (high-temperature period), and Nove...

A partnership between the Iberostar Foundation and the University of the Balearic Islands through the Chair of the Sea, Coastal Health Monitoring Scheme has a dual purpose: training students in marine biodiversity monitoring and collecting critical coastal ecosystem data. Launched in 2021 on Ibiza with 12 stations, it now boasts 50 stations: 20 in...

Global change has a deep impact on the distribution and prevalence of diseases in fish, leading to the emergence of new pathogens. A recent observation on Ibiza Island in the Balearic Islands highlighted the presence of black spot disease linked to a digenean fluke belonging to the genus Scaphanocephalus in Xyrichthys novacula specimens. The study...

Silene migjornensis is a plant species restricted to a unique location in the south of Mallorca. Its floral syndrome suggests nocturnal pollination by lepidopterans, but pollinators of this species remain unknown. Several surveys were conducted along the flowering period, and potential pollinators were captured for pollen load analyses. Additionall...

La ciencia ciudadana ha emergido como una herramienta vital para la conservación de la biodiversidad, involucrando a la comunidad en la recopilación de datos científicos. Un ejemplo destacado es el proyecto Biodibal, iniciado en 2017 por la Universidad de las Islas Baleares y Red Eléctrica, que contiene 1 799 814 observaciones de biodiversidad en l...

S’investiga la presència de microplàstics (MP) en sediments i tracte digestiu d’Holothuria tubulosa, i per això es van recollir mostres d’arena i espècimens d’holotúria a sis platges de Menorca. La quantitat mitjana de microplàstics trobats als sediments és de 62 MP/kg, amb una mediana de 42 (144); la zona de Son Bou és la que presenta més concentr...

Climate change associated with human activities alters marine ecosystems and causes imbalances and abrupt changes in sea conditions. Scarce freshwater resources for human consumption often prompt the construction of desalination plants, which discharge significant amounts of brine into the sea, potentially elevating salinity levels. Furthermore, gl...

In higher education, motivating and engaging students in projects with practical social value is a challenge for universities. Nowadays, students can actively participate in research projects initiated by their professors. While this participation is seen as a valuable formative activity, it is important to emphasize that its primary purpose is to...

In recent years, there has been an increase in the reporting of plastic pollution in the marine environment and its effects on marine animals, especially bony fish. However, the prevalence and effect, particularly concerning biomarkers of oxidative stress, in elasmobranchs remain underreported and unknown. In this study, microplastics were observed...

Contiene los datos resultantes del seguimiento de las aves comunes que se realiza en diferentes localizaciones de las Islas Baleares en dos épocas del año con el objetivo de obtener información sobre las tendencias de las poblaciones de aves comunes y a partir de éstas, generar indicadores ambientales. La metodología de campo consiste en identifica...

The 10th International Symposium Monitoring of Mediterranean Coastal Areas: problems and measurements techniques was organized by CNR-IBE in collaboration with Italian Society of Silviculture and Forest Ecology , and Natural History Museum of the Mediterranean and under the patronage of University of Florence, University of Catania, Accademia dei L...

Global change produces substantial modification to the distribution and rhythm of infection of diseases in fish, favouring the introduction of new pathogens. Recently, the presence of black spot disease, associated with a digenean fluke of the genus Scaphanocephalus, has been observed in specimens of Xyrichthys novacula on the island of Ibiza (Bale...

This study explores the potential of photo-identification methods (PIMs) as a viable, non-invasive, and ethical tool for wildlife studies, with a specific focus on anuran species such as Bufotes viridis balearicus (Boettger, 1880). Although the automatic photo-identification suite (APHIS) software was initially designed for lizard identification, o...

The blue crab Callinectes sapidus Rathbun, 1896 is native to the western coasts of the Atlantic Ocean and is currently considered an invasive species in the Mediterranean Sea. In this study, we examined the stomach contents of C. sapidus to determine the frequency of occurrence of microplastics (MPs) and microfibers (MFs) in the Balearic Islands ar...

Under the frame of the project “Diversity and community structure of moths as bioindicators of habitats quality of natural areas at the Balearic Islands”, a moth monitoring network has created. The network is composed by 10 monitoring stations distributed all over the archipelago: five stations at Mallorca, two at Menorca, two at Eivissa and one at...

Amphibian populations around the world are facing significant declines, underscoring the urgency of monitoring and understanding their life history. The use of capture, mark and recapture techniques provide essential tools for such studies, offering valuable information on the spatial ecology and movement patterns of species. This summary presents...

In recent years, photo-identification has emerged as a valuable method for identifying and studying individuals. This study focuses on Bufotes balearicus (Boettger, 1880) and highlights the use of its distinctive individual colour patterns for photo-identification in population studies. The colour patterns present on the back of B. balearicus indiv...

The introduction of alien species in insular ecosystems is one of the main causes of population decrease and extinction of native biodiversity. This is the first time that the arrival of Cydalima perspectalis in the Balearic Islands has been reported, which makes it possible to complete the distribution of this Asian moth in Europe. The box tree mo...

Desde el año 2016 el Consorcio per a la Recuperació de la Fauna de les Illes Balears (COFIB) ejecuta las actuaciones de control de ofidios invasores en las islas de Ibiza y Formentera que le encomienda el Govern de les Illes Balears. Estos ofidios invasores en las islas Pitiusas incluyen a Hemorrhois hippocrepis y Zamenis scalaris. Las dos especies...

En el presente estudio, se proporciona información sobre algunos parámetros ecológicos del sapo balear Bufotes balearicus (Boettger, 1880) en de la Isla de Mallorca. Para ello se realizaron un total de 31 salidas de campo comprendidas entre los años 20182020 en 5 puntos de cría de la especie en el Parque Natural de Mondragó. En este periodo se real...

La ciencia ciudadana es una potente herramienta en la recogida de información por parte de la ciudadanía cuando está conectada con entidades científicas que la impulsan y gestionan. En este sentido en el año 2017 desde la Universitat de les Illes Balears se impulsó el proyecto Biodibal a través de un convenio de colaboración con Red Eléctrica de Es...

La distribución global y la presencia de basura marina, en todos los niveles de la columna de agua, son extremadamente preocupantes ya que representan una amenaza potencial para los organismos marinos en términos de enmallamiento e ingestión. Ante la creciente contaminación, el objetivo de este trabajo es evidenciar, por primera vez, el impacto que...

Caretta caretta L. 1758 (Reptilia, Cheloniidae) es la tortuga marina más abundante en el mar mediterráneo. A pesar de ello, su población está en declive debido principalmente a la interacción con la pesca, el tráfico marítimo, la creciente presencia de residuos plásticos y la contaminación. Los parámetros sanguíneos permiten realizar un seguimiento...

En las Islas Baleares se encuentran dos especies de tortugas pertenecientes al género Testudo. Las dos especies son consideradas especies introducidas por el hombre en tiempos históricos. En el caso de Testudo hermanni se han documentado casos de individuos melánicos en un área situada en el sur de Mallorca conocida como la marina de Llucmajor. Se...

Con la finalidad de establecer las directrices básicas de gestión de las especies de anfibios y reptiles más amenazados de las Illes Balears se ha desarrollado el Plan de recuperación y conservación de anfibios y reptiles de les Illes Balears, conocido como Plan Boscà, el cual está pendiente de su aprobación definitiva. Se trata de un plan grupal q...

Las poblaciones de tortugas marinas en todo el mundo se encuentran entre los grupos de vida silvestre más afectados por las actividades humanas. La tortuga boba Caretta caretta L. 1758 (Reptilia, Cheloniidae), distribuida mundialmente habitando en aguas tropicales y templadas, es la especie de tortuga más abundante en el Mar Mediterráneo. En la act...

En las últimas décadas se han introducido tres especies de serpientes en las Islas Baleares a través del comercio de viveros desde la Península Ibérica, su área de distribución nativa. La culebra de escalera Zamenis scalaris fue citada por primera vez en 2006 en Formentera, la culebra de herradura Hemorrhois hippocrepis en 2003 en Ibiza y la culebr...

The ladder snake Zamenis scalaris was first reported in 2006 in Formentera (Balearic Islands, Spain), until then a snake‐free Mediterranean island. Since 2016, intense control campaigns have been carried out and, for the first time, snake captures over 2017–2020 have been used to analyze the sex ratio, age, fat percentage, population density, and s...

Plastic pollution in the oceans is a growing problem, with negative effects on exposed species and ecosystems. Xyrichtys novacula L. is a very important fish species both culturally and economically in the Balearic Islands. The aim of the present study was to detect and categorise the presence of microplastics (MPs) in the digestive tract of X. nov...

The western Mediterranean Sea is one of the most affected areas by the introduction of alien seaweed. Penicillus capitatus Lam. and the recently introduced Halimeda incrassata (J.Ellis) J.V.Lamour are tropical algae that invade native algae assemblies in the shallow sandy beds of Mallorca (Balearic Islands, western Mediterranean) where they are alr...

The adaptation of sponges to freshwater environments was a major event in the evolutionary history of this clade. The transition from a marine environment to freshwater ecosystems entailed a great number of adaptations to more unstable habitats , such as the ability to form resistance gemmules as a defense mechanism against environmental adversity....

Xyricthys novacula is very popular fish species in the Balearic Islands and a main target for recreational fishing. Over the last years, spots were observed on many individuals, which seems to be progressively more common. The aim of the present study was to identify the parasite, determine its abundance in a marine protected area (MPA) and in a no...

Increasing worldwide rates of plant introductions is an environmental issue that makes necessary to continuously update alien checklists. The Balearic Islands (an archipelago located in the Western Mediterranean basin) has been strongly influenced by tourism during the last decades, causing an increase of alien species arrival. After two years of f...

Stressful situations induce an increase in the production of reactive oxygen species (ROS) which can lead to molecular damage and alteration of cell function. The introduction of new potential predators induces physiological stress in native fauna. However, behavioral responses have been reported in preys, demonstrating an induction of the defenses...

Biodibal és un projecte multifuncional que es va establir oficialment l’any 2017 i des de llavors ha acumulat 1.342.316 registres d’observacions de gairebé 1200 usuaris. El seu objectiu general és reunir i organitzar el coneixement sobre biodiversitat de els Illes Balears per tal de convertir-lo en actiu intel·lectual i posar-lo a l’abast de qualse...

The presence of plastic in oceans is extremely worrying because it poses potential threats for marine organisms, including plastic entanglement and ingestion. In the present study, we examined the occurrence of marine debris in the gastrointestinal tract of 28 cetaceans: Stenella coeruleoalba (n=16), Tursiops truncatus (n=8), Grampus griseus (n=2),...

Xyricthys novacula és una espècie de peix molt popular a les Illes Balears i un objectiu principal per a la pesca recreativa. Les taques en molts dels individus són progressivament més freqüents. Aquest estudi volia identificar i determinar l'abundància del paràsit en una àrea marina protegida (MPA) i en una àrea no protegida amb més influència ant...

The Mediterranean Sea is one of the most affected areas by the presence of invasive species. Halimeda incrassata (J Ellis) JV Lamoroux and Penicillus capitatus Lam. are tropical seaweeds recently reported in waters of the Mallorca Island. The aim was to evaluate the effect of a potential competition between the invasive algae and the native Padina...

Des del Grup d’Acció Local de Pesca d’Eivissa i Formentera en col·laboració amb el Consell d’Eivissa i la Fundació Natura Parc en el període 2009-2013 i 2019-2021 es varen realitzar campanyes de marcatge de Seriola dumerili Risso, 1810. Els marcatges es varen realitzar mitjançant marques individuals T-tag i els exemplars foren alliberats. Després d...

Xyrichtys novacula is a target in the recreational fishery of the Balearic Islands, and one of the most expensive fish in these islands. Its benthic behaviour is due to its burying habit, and its feeding, which consists mostly of sand-dwelling invertebrates. Microplastic (MP) ubiquity and abundance greatly favours ingestion, passively (attached to...

Microplastics (MPs) are characterized by their high persistence in marine ecosystems, and due to their small size, they can be easily ingested by very diverse organisms. Although the presences of MPs in wild marine species are well documented, there is still limited information on their potential to induce adverse effects in sea cucumbers. This stu...

El programa CHMS arreplega dades de diferents poblacions d'espècies bioindicadores per totes les Illes Balears. A Eivissa, s’ha fet el seguiment de Patella rustica, Patella caerulea i Phorcus turbinatus. La seva condició d’organismes herbívors a primera línia de costa les converteix en bioindicadors de futur interès de l’estat litoral de les costes...

Durant la campanya de monitoratge de salut costanera duta a terme de dia 1 a dia 14 d’agost del 2022, es van dur a terme un total de 30 transsectes de 60 m2 cada un, repartits en un total de 10 localitats diferents repartides per tota l’illa d’Eivissa. A cada localitat es va fer un total de 3 transsectes, amb l’excepció de la localitat de Portinatx...

A les costes de les Balears es poden trobar diverses espècies de crancs. En el marc del Coastal Health Monitoring Scheme s’ha iniciat un estudi per a la recol·lecció de dades de les poblacions i diversitat dels diferents decàpodes més comuns de la zona litoral rocosa. Les dades recollides aporten informació sobre la densitat i abundància relativa d...

Les espècies invasores són aquelles que no es troben en el seu ambient natural, es troben en quantitats excessives i causen alteracions o impactes al medi. Callinectes sapidus, o cranc blau és una espècie invasora, nativa de la costa oest de l’Atlàntic, que entrà a Europa al segle XX, i a les illes Balears al segle XXI, a Mallorca a 2017 i a Eiviss...

Microplastics (MPs) are small ubiquitous plastic particles present in all marine environments that can be ingested by a wide range of organisms, including holothurians. The aim was to evaluate the presence of MPs in specimens Holothuria tubulosa from areas with different human activities and their potential effect by measuring some biomarkers. Spec...

El Coastal Health Monitoring Scheme (CHMS) es va realitzar amb l’objectiu d’avaluar la variació de les poblacions de diferents grups d’animals marins. Les holotúries són un grup molt freqüent a les costes mediterrànies occidentals. Per aquesta raó, s’ha realitzat el seguiment de Holothuria tubulosa (Gmelin, 1790), on s’ha estudiat la densitat i est...

To evaluate the ecological conditions of P. oceanica meadows around the Balearic Islands four indices based on benthic foraminiferal assemblages, such as, the modified FORAM Index (FI'), the "Long vs Short life span" index (ILS), the Foram Stress Index (FSI), and Shannon-Weaver index (H'), were calculated. High indices values for all sampling sites...

Es presenten els resultats preliminars del seguiment de Paracentrotus lividus i Arbacia lixula a les costes d’Eivissa mitjançant la realització de 30 transectes a 10 estacions de seguiment. Les dades obtingudes mostren diferències significatives tant en relació a la freqüència de cada espècie a la localitat, la densitat observada i l’estructura de...

Es presenten els resultats preliminars del seguiment d’Anemonia sulcata i Aiptasia mutabilis a les costes d’Eivissa mitjançant la realització de 30 transectes a 8 estacions de seguiment. Les dades obtingudes mostren diferències significatives tant en relació a la freqüència de cada espècie a la localitat, la densitat observada i la estructura de la...

La intrusió marina és una de les majors amenaces per als ecosistemes de les zones humides com les albuferes. L’increment de la salinitat de l’aigua a s’Albufera de Mallorca causa un desequilibri metabòlic en els organismes que hi habiten, causant estrès oxidatiu. Donada la importància dels macròfits a s’Albufera de Mallorca s’analitzà l’efecte de l...

Oxidative stress and behavioral responses of the moorish gecko Tarentola mauritanica submitted to the presence of an introduced potential predator, the horseshoe whip snake Hemorrhois hippocrepis Estrès oxidatiu i respostes conductuals del dragó comú Tarentola mauritanica sotmès a la presència d'un potencial depredador introduït, la serp de ferradu...

Les espècies invasores són un dels principals problemes ecològics, provocant impactes negatius a la fauna local i pèrdues socioeconòmiques. Des de l’arribada de Procyon lotor a l’illa de Mallorca fins a dia d’avui, s’està duent a terme una campanya de control de l’espècie per part del Consorci per a la Recuperació de la Fauna de les Illes Balears (...

El coneixement sobre biodiversitat a les Illes Balears es troba dispers i, pel que fa a molts de grups, desactualitzat o mai s’ha arribat a estudiar en profunditat. Aquest projecte té dos objectius principals. Per una banda, reunir i posar a disposició d’investigadors, gestors i el públic en general informació actualitzada sobre totes les espècies...

The Mediterranean Sea is one of the seas that harbours the most biodiversity and includes unique species of all the flora and fauna. One of the most significant groups are the fish which comprises many types with peculiar singularities. The objective of the study consists of an analysis of different points on the coast of the Pityusics. It is focus...

A les Illes Balears se poden trobar dues espècies de tortugues que pertanyen al gènere Testudo. Ambdues són considerades espècies introduïdes per l’home, per tant, pertanyen a la fauna al·lòctona de les Illes Balears. El present treball es centrà amb Testudo hermanni, espècie que es distribueix per regions on hi ha clima mediterrani i submediterran...

L’any 2020 es va establir una xarxa de seguiment de papallones nocturnes a les Illes Balears amb 8 estacions a les illes de Mallorca, Menorca i Eivissa. S’han realitzat un total de 122 mostrejos, restant pendents els corresponents als mesos d’octubre i novembre d’enguany. La informació obtinguda actualment està essent analitzada i constitueix una e...

The presence of plastic in oceans is extremely concerning as it poses a potential threat to marine organisms; for instance, they could become entangled in the plastic or they could ingest it. The objective of this work is to provide evidence, for the first time, of the impact that plastic debris has on stranded cetaceans in the Balearic Islands, in...

Pollution in the seas and oceans is a global problem, which highlights emerging pollutants and plastics, specifically microplastics (MPs), which are tiny (1 μm to 5 mm) ubiquitous plastic particles present in marine environments that can be ingested by a wide range of organisms. Holothurians are benthic organisms that feed on sediment; therefore, t...

Natural marks have increasingly been used as a tool for individual identification in capture–mark–recapture techniques. Photo-identification is a noninvasive alternative to traditional marking techniques, allowing individual recognition of species through time and space. We tested the APHIS (Automatic Photo Identification Suite) software as a softw...

Because of their toxicity, persistence and difficult biodegradability heavy metals are one of the most significant pollutants in marine environments, including seagrass meadows. Epiphytic foraminifers are conspicuous in the Posidonia oceanica meadows and can be utilized as cost-effective bioindicators. To evaluate the ecological conditions of P. oc...

Los datos incluidos en este recurso provienen en su mayoría de varamientos de tortugas marinas registrados en las Illes Balears. También se incluyen, aunque en baja proporción, encuentros en alta mar de ejemplares de tortugas marinas heridas o enmalladas. De la mayoría de ejemplares se incluyen los siguientes datos biométricos: peso en kilogramos,...

The occurrence of the brackish water shrimp Palaemon varians Leach, 1814 (Palaemonidae) is documented for the first time in the Balearic Islands. The specimen studied was collected at the mouth of the torrent of Na Borges, in the north of the island of Mallorca, located inside a Site of Community Importance (SCI). It is a decapod crustacean typical...

Microplastics (MPs) are characterized by their high persistence in marine ecosystems, and due to their small size, they can be easily ingested by very diverse organisms. Although the presence of MPs in wild fish is well documented, there is still limited information on their potential to induce adverse effects. Pelagic fish species, because of thei...

Plastic waste and its ubiquity in the oceans represent a growing problem for marine life worldwide. Microplastics (MPs) are ubiquitous in the sea and easily enter food webs. Xyrichtys novacula L. is one of the main target species of recreational fishing in the Balearic Islands, Spain. In the present study, the quantity of MPs in gastrointestinal tr...

Natural marks have increasingly been used as a tool for individual identification. One of the most popular techniques used by natural marks as an individual recognition tool is photo-identification. Photo-identification is a non-invasive alternative to traditional marking, which allows individual recognition of species through time and space. In th...

Plastic waste has become ubiquitous pollutants in seas and oceans and can affect a wide range of species. For some marine species, plastic debris could pose a considerable threat through entanglement, ingestion, and habitat degradation and loss. Sea turtles are one of the most sensitive species, as their migratory behaviour and multifaceted life cy...

En los últimos años han aumentado significativamente las capturas de Cerambyx cerdo en los encinares de la isla de Mallorca. Este hecho pone de manifiesto la necesidad de actuar de manera urgente. En el año 2021 se inician un conjunto de estudios en el marco de un proyecto llamado Seguimiento y control científico de las capturas de Cerambyx cerdo e...

Se aportan datos corológicos para 27 briófitos de las Islas Baleares. La mayoría de las citas de esta contribución corresponden a especies relativamente raras de áreas montañosas de las Islas Baleares (principalmente de Mallorca), para las cuales, la información sobre su distribución en el archipiélago es escasa y poco actualizada. Se cita por prim...

Chelonians are among the most threatened animal groups because due to life history strategy, they are extremely vulnerable to human pressure. At the ""Mediterranean workshop to develop tortoise conservation strategies"" scientists, conservation associations, environmental managers, IUCN advisers and CITES inspectors met in 2019 in Spain. The aims w...

La cartografía de la distribución de las especies, así como de su área de distribución geográfica histórica, es una cuestión clave para la gestión y la planificación de la conservación de la biodiversidad. En las Islas Baleares (España), la distribución del género Testudo ha sufrido cambios significativos. Por ello se ha realizado una comparación c...

In recent years, two alien snake species have been reported in two islands of the Balearic Archipelago: Eivissa and Formentera. These introductions represent a hazardous threat to native biota and are associated with the nursery trade from mainland Spain. The horseshoe whip snake (Hemorrhois hippocrepis (Linnaeus, 1758)) and the ladder snake (Zamen...

Las nuevas Tecnologías de la Información y la Comunicación (TIC) son un recurso que bien utilizado por el profesorado puede permitir la motivación del alumnado con respecto a diferentes especialidades, como serían las ciencias. Dentro de las diferentes TIC que se pueden escoger, la revista digital supone una herramienta digital que permitiría alcan...

Los seminarios en grupos reducidos pueden contribuir a la pérdida de motivación del alumnado si se limitan a transmitir información de forma similar a las clases teóricas o realizando / corrigiendo actividades de forma mecánica y repetitiva. El objetivo es desarrollar un diseño integrado de seminarios y prácticas que sean motivantes y donde el alum...