Papers by cesar bordehore
Jellyfish blooms have demonstrated to be an important driving force of changes in local biodivers... more Jellyfish blooms have demonstrated to be an important driving force of changes in local biodiversity as well as change in ecosystems due to their interactions with other species or with ecosystem services. Recently, high numbers of the cubomedusae Carybdea marsupialis (Carybdeidae) have been found in the coast of Denia (SW Mediterranean, Spain). Some negative interactions with tourist and local people due to their painful sting have been found and ecological consequences probably occur because of the high density found in those beaches. Due to the geographic specificity of this phenomenon we considered the niche modeling approach, as a tool to elucidate which environmental restrictions influence their presence in the area. We used BIOMOD R-Package which also allows taking into consideration some possible spread ranges of this cubodemusae species. Variables as sea temperature and salinity, current direction and percentage of sandy bottom, were the most important variables which expla...
Journal of Travel Medicine, 2014
A woman stung by the box jellyfish Carybdea marsupialis (Cnidaria, Cubozoa) at a Spanish Mediterr... more A woman stung by the box jellyfish Carybdea marsupialis (Cnidaria, Cubozoa) at a Spanish Mediterranean beach showed systemic manifestations over several months [pain far from the inoculation point, arthralgia, paresthesia, hyperesthesia, increase in eosinophils and immunoglobulin E (IgE)] in addition to the skin condition.
Hydrobiologia, Jan 1, 2010
Blooms of the invasive ctenophore, Mnemiopsis leidyi, occurred in 2009 along the Mediterranean Se... more Blooms of the invasive ctenophore, Mnemiopsis leidyi, occurred in 2009 along the Mediterranean Sea coasts of Spain and Israel. This voracious zooplanktivore spread throughout the Black Sea basin after its introduction in the early 1980s, throughout northern European coastal waters, and now occurs throughout the Mediterranean Sea. M. leidyi occurred throughout the summer along the entire Catalan Spanish and Israeli coasts in 2009. Those locations had high temperatures (18-26°C) and salinities (37-38) during the blooms. The patterns of abundance of large jellyfish along the Catalan coast were unusual in 2009, with low numbers during July, August, and September when ctenophores were abundant. Small populations of those potential predators and food competitors of M. leidyi could have contributed to the ctenophore bloom. The identity of the ctenophores from Spain and Israel was confirmed as M. leidyi by molecular analysis based on DNA sequencing of the nuclear internal transcribed spacer (ITS) regions. This is the first molecular confirmation of M. leidyi in the Mediterranean Sea. Most ctenophores had an ITS genotype previously found in M. leidyi from other invaded regions (the Black, Azov, and Mediterranean seas), as well as native regions in the United States, suggesting common ancestry. Based on the circulation patterns of Mediterranean surface waters and shipping activities, we conclude that the spread of M. leidyi in the Mediterranean probably resulted from re-introductions by ballast water transport and subsequent distribution by currents. We also conclude that the near-simultaneous blooms in opposite ends of both the Mediterranean basins indicate that M. leidyi is resident around the Mediterranean. We discuss environmental conditions, food, and predators of M. leidyi in both regions that would influence the future effects of this voracious consumer on the pelagic food web of the Mediterranean Sea.
El medio ambiente no es ajeno a la especie humana. Las características físicas, químicas y biológ... more El medio ambiente no es ajeno a la especie humana. Las características físicas, químicas y biológicas del medio que nos rodea ofrecen el marco óptimo para nuestro desarrollo. El medio ambiente se define como todos aquellos elementos que nos envuelven, vivos o inertes, además de sus interrelaciones. La erradicación o alteración de cualquiera de sus elementos o flujos de materia o energía, puede desembocar en una pérdida de la función que venía desarrollando ese ecosistema. La pérdida de los componentes vivos, las especies, tiene una especial trascendencia social y también una importancia económica creciente.
International Journal of Numerical Methods for Heat & Fluid Flow, 2003
Faltung equations (closed cycle type) have a wide range of biological applications, nonetheless, ... more Faltung equations (closed cycle type) have a wide range of biological applications, nonetheless, they are poorly studied. We use a Volterra-Kostitzin model (which is a Faltung equation) to study the dynamics of a certain species, where the integral term represents a residual action. The complexity of resolution of this non-linear equation using classical numeric methods is here solved with the Adomian decomposition method. Our method provides the same graphic solution as others do, such as the numeric method Miladie. However, the decomposition method of Adomian has the advantage that neither time nor space are considered discontinuous and that it gives an analytical solution with a reliable approximation.
Hydrobiologia, 2010
Blooms of the invasive ctenophore, Mnemiopsis leidyi, occurred in 2009 along the Mediterranean Se... more Blooms of the invasive ctenophore, Mnemiopsis leidyi, occurred in 2009 along the Mediterranean Sea coasts of Spain and Israel. This voracious zooplanktivore spread throughout the Black Sea basin after its introduction in the early 1980s, throughout northern European coastal waters, and now occurs throughout the Mediterranean Sea. M. leidyi occurred throughout the summer along the entire Catalan Spanish and Israeli coasts in 2009. Those locations had high temperatures (18–26°C) and salinities (37–38) during the blooms. The patterns of abundance of large jellyfish along the Catalan coast were unusual in 2009, with low numbers during July, August, and September when ctenophores were abundant. Small populations of those potential predators and food competitors of M. leidyi could have contributed to the ctenophore bloom. The identity of the ctenophores from Spain and Israel was confirmed as M. leidyi by molecular analysis based on DNA sequencing of the nuclear internal transcribed spacer (ITS) regions. This is the first molecular confirmation of M. leidyi in the Mediterranean Sea. Most ctenophores had an ITS genotype previously found in M. leidyi from other invaded regions (the Black, Azov, and Mediterranean seas), as well as native regions in the United States, suggesting common ancestry. Based on the circulation patterns of Mediterranean surface waters and shipping activities, we conclude that the spread of M. leidyi in the Mediterranean probably resulted from re-introductions by ballast water transport and subsequent distribution by currents. We also conclude that the near-simultaneous blooms in opposite ends of both the Mediterranean basins indicate that M. leidyi is resident around the Mediterranean. We discuss environmental conditions, food, and predators of M. leidyi in both regions that would influence the future effects of this voracious consumer on the pelagic food web of the Mediterranean Sea.
Page 1. Composición y variabilidad del ictioplancton costero en la reserva marina de Tabarca, sud... more Page 1. Composición y variabilidad del ictioplancton costero en la reserva marina de Tabarca, sudeste ibérico C. Bordehore, JT Bayle Sempere y AA Ramos Esplá Unitat de Biología Marina. Facultat de Ciències. Universitat d'Alacant. Apartado 99. E-03080 Alicante, España. ...
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Papers by cesar bordehore