Luis Eduardo Calderon | Centro de Investigación Científica y de Educación Superior de Ensenada, BC. (original) (raw)

Papers by Luis Eduardo Calderon

Ciencia Y Desarrollo, 2013

Hidrobiologica, Sep 1, 2015

Journal of Experimental Marine Biology and Ecology, Feb 1, 2019

The persistence of seaweeds as community-structuring organisms is critical for the maintenance of... more The persistence of seaweeds as community-structuring organisms is critical for the maintenance of many ecosystem functions on rocky intertidal shores. We measured the relative importance of seaweeds in structuring the abundance, richness, and distribution of macroinvertebrates at three tidal levels on a rocky shore. Through manipulative experiments, we characterized temperature, irradiance, and desiccation underneath seaweed canopy plots made up of either Silvetia compressa or Stephanocystis dioica, assembled at three biomasses. We assessed differences in the abundance, richness, and the distribution of macroinvertebrates underneath the canopy as a function of seaweed species and biomass and evaluated differences due to the tidal height of the installed experimental seaweeds. We found that manipulated seaweed biomass significantly affected the community structure of associated macroinvertebrates at all tidal levels, especially at higher biomass treatments. Although contrary to other studies, we found no effect on richness underneath the canopies at any tidal height. Our results show that intertidal seaweeds provide protection from water loss, heat, and irradiance when compared to manipulative controls with no canopy cover. We also found that the relative importance of the experimental seaweed canopies in their ability to mitigate stressful abiotic conditions increased with prolonged emersion periods, such as at higher levels in the intertidal zone. At the higher tidal level tested, a greater abundance of macroinvertebrates was associated with the experimental canopies in comparison to the manipulation-control plots and the natural substrate. These results emphasize the role of intertidal seaweeds as bioengineers and highlight the importance of preserving and restoring high densities of leathery seaweeds on degraded shores in order to preserve the dynamics of the intertidal ecosystem overall.

Hidrobiologica, Dec 1, 2015

Universidad Autonoma de Baja California Sur. Departamento de Biologia Marina. Apartado postal ... more 1) Universidad Autonoma de Baja California Sur. Departamento de Biologia Marina. Apartado postal 19-B, CP 23080. La Paz, B.C.S. Correo electronico: hreyes@uabcs.mx 2) Centro de Investigacion Cientifica y de Educacion Superior de Ensenada. Departamento de Ecologia. km. 107 Carretera Tijuana-Ensenada. CP 22860. Ensenada, B.C. Correo electronico: leca@cicese.mx 3) Centro Interdisciplinario de Ciencias Marinas, Instituto Politecnico Nacional. Avenida Instituto Politecnico Nacional S/N. Colonia Playa Palo de Santa Rita. CP 23096. La Paz, B.C.S. Correo electronico: dherrero@ipn.mx

Ciencia y mar, 1999

... Eugenio Alberto Aragón Noriega * Celio Cervantes Valle ** Alma Rosa García Juárez ** Luis Edu... more ... Eugenio Alberto Aragón Noriega * Celio Cervantes Valle ** Alma Rosa García Juárez ** Luis Eduardo Calderón Aguilera *** ... y Mathews (1981), efectua-ron una revisión amplia sobre los ciclos y zonas de desove de reproductores y concluyeron que el máximo desove ocurre ...

Los arrecifes coralinos son ecosistemas de alto valor ecologico, economico y social. Son “oasis m... more Los arrecifes coralinos son ecosistemas de alto valor ecologico, economico y social. Son “oasis marinos” de alta productividad, albergan una gran biodiversidad y proveen valiosos servicios ambientales como proteccion de la linea de costa, banco de germoplasma, turismo, recreacion, investigacion y valor estetico. Asimismo, funcionan como almacenes de carbonato de calcio ya que estan compuestos por organismos calcificadores como corales hermatipicos, algas calcareas, esponjas, pastos marinos, macroalgas, moluscos, crustaceos y otros grupos taxonomicos. Con base en la ultima informacion publicada sobre tasas de crecimiento, densidad esqueletal, tasa de calcificacion, cobertura de coral y caracteristicas del arrecife, se calcula la tasa anual bruta de secuestro de carbono en las principales comunidades coralinas del Pacifico mexicano. En Cabo Pulmo, Baja California Sur, dicha tasa es de 8 657 toneladas de carbonato de calcio al ano, mientras que en Ixtapa-Zihuatanejo, Guerrero, es de 162; en Islas Marietas 53.85, en Bahias de Huatulco, Oaxaca, 47, en Manzanillo, Colima, 26, en Isla Isabel, Nayarit 16 y en Tenacatita, Jalisco, 12 toneladas al ano. Por lo anterior, se proponen como politica publica una mayor coordinacion entre autoridades, el desarrollo de una politica nacional para la proteccion de arrecifes de coral, la reactivacion del Consejo Consultivo Nacional Cientifico y Tecnico de los Arrecifes Coralinos de Mexico y la aplicacion efectiva de sanciones.

Ciencia y desarrollo, 2011

Ciencias Marinas, Aug 1, 1992

An ecological analysis of benthic polychaete assemblages is presented.

Hidrobiologica, Aug 31, 2022

Research capability gaps hinder understanding of the impact of climate change on ecosystem servic... more Research capability gaps hinder understanding of the impact of climate change on ecosystem services in the Latin American Pacific coast Las brechas en la capacidad de investigación dificultan la comprensión del impacto del cambio climático en los servicios ecosistémicos en la costa del Pacífico latinoamericano

Marine Ecology, Mar 5, 2015

Coral reefs are in crisis worldwide. Fish play a key role in the resilience of reefs because most... more Coral reefs are in crisis worldwide. Fish play a key role in the resilience of reefs because most of the biomass of the ecosystem flows through them. Evidence indicates that the response to stressors will vary markedly depending on the resilience of the ecosystem. In order to assess the functional groups of reef fishes, morphometric and ecomorphological analyses were carried out on the shape and diet of 117 reef fish species from the Mexican Eastern Pacific (MEP) from 23°N to 15°N, spanning the years 2009-2012. Six trophic groups were identified and subdivided into 19 functional groups: (A) detritus and plants consumers, three morphologies; (B) plants and zoobenthos consumers, four morphologies; (C) zoobenthos consumers, two morphologies; (D) zoobenthos and zooplankton consumers, three morphologies; (E) zooplankton and nekton consumers, three morphologies; and (F) nekton consumers, four morphologies. Our main conclusions are: (i) fish communities of the MEP have a high degree of ecological redundancy; (ii) fish diversity is not related to the coral cover; and (iii) the combination of using both morphology and diet produce a more effective classification of functional groups. Future studies such as these will allow a deeper understanding of environment and it will help illuminate the effects of fish morphology and diet on population structure.

Hydrobiologia, Oct 26, 2022

Rocky reefs and kelp forests form conspicuous habitats that promote species diversity and support... more Rocky reefs and kelp forests form conspicuous habitats that promote species diversity and support livelihoods in coastal communities. However, a taxonomic approach represents disregards biological identity and differences between species. In this study, we explore the relationship between functional diversity of fish communities and habitat complexity in temperate reefs and test if greater habitat complexity, such as rugosity, or kelp threedimensional structure, would result in higher functional diversity. We conducted fish surveys using SCUBA at four sites where both a rocky reef with no kelp and a kelp forest existed nearby. Although rocky reefs and kelp forests had different habitat complexity, Accepted for publication in Hydrobiologia Springer there were no significant differences in taxonomic or functional diversity found between the two habitat types. However, we did find differences at smaller spatial scales in the kelp forest sites, where number of stipes, stipes diameter, and kelp density influenced functional richness, but not species richness, highlighting the importance of functional approaches. These differences found among kelp forests may be linked with small-scale spatiotemporal oceanographic drivers of productivity such as upwelling exposure or nutrient availability. We recommend considering small-scale spatial drivers when aiming to understand how habitat characteristics link with functional diversity.

Marine Biology, Mar 17, 2022

Journal of Shellfish Research, Mar 1, 2015

ABSTRACT In the upper Gulf of California, a lucrative fishery of the Cortes geoduck Panopea globo... more ABSTRACT In the upper Gulf of California, a lucrative fishery of the Cortes geoduck Panopea globosa (Dall 1898) is developing rapidly. Both exploited and unexploited areas for this fishery still exist in this area. The effect of the data source of the length-atage data on growth models fitted to Panopea globosa was evaluated. Five growth models were tested: von Bertalanffy, logistic, Gompertz, Schnute, and Schnute-Richards. The parameters of each model and their confidence intervals (CIs) were computed using the maximum likelihood method. Multimodel inference was used to average the asymptotic length for each area. The bestfitting model was selected using Akaike's information criterion (AIC). According to this criterion, the logistic growth model best described the growth of P. globosa in unexploited beds, and the Schnute models performed best in exploited beds. The asymptotic length values obtained frommultimodel inferencewere 161.88 mm (95% CI, 161.83–161.93 mm) in unexploited beds and 205.20 mm (95% CI, 197.60–212.96 mm) in exploited beds. The latter value is the largest asymptotic length obtained for any Panopea species worldwide. In conclusion, the data source of the length-at-age data clearly affects the performance of growth models.

Marine Ecology Progress Series, 1989

Effect of anthropogenic and environmental factors on the blue whiting Micromesistius poutassou of... more Effect of anthropogenic and environmental factors on the blue whiting Micromesistius poutassou off the Catalonian coast, 1950-1982 Carlos as', Luis E. C a l d e r o n-~g u i l e r a~, *

Latin American Journal of Aquatic Research, Sep 10, 2018

The brown sea cucumber Isostichopus fuscus is the most important commercial holothurian in the ea... more The brown sea cucumber Isostichopus fuscus is the most important commercial holothurian in the eastern Pacific, and its high market value caused overfishing and sharp declines of its populations and catches in several Latin American countries. In Mexico, the fishery has been intense in the northern Gulf of California since the 1990s, and it is currently under strong regulation. To evaluate the current status of the organisms, we measured the size, weight and estimated the relative condition index (Kn) of 702 specimens sampled in 86 rocky reefs of that region in 2016, at depths from 3 to 22 m. Mean length ± SD was 22.32 ± 5.23 cm, lower than average in the northern Gulf, but nevertheless, the average weight was 420.61 ± 192.48 g, among the highest recorded in the eastern Pacific; this is presumably due to the high primary production of the region that favors the presence of well-nourished organisms. The weight (W)-length (L) relationship was W = 3.27 L 1.56 , and condition index ranged from 0.045 to 2.13 (mean Kn = 0.96 ± 0.29), a figure that did not differ to that reported along the Mexican Pacific. There were differences in the value of Kn among sites, being higher in areas that are subject to the low fishing effort.

Revista De Biologia Tropical, 1994

The abundance of Porites panamensis was estimated with 21 belt transects (SO X 1 m; total sampled... more The abundance of Porites panamensis was estimated with 21 belt transects (SO X 1 m; total sampled alea lOSO mI) atibe Cabo Pulmo Reef, Mexico. The species occupies 4-8% of Ibe bouom and is more abundant in deeper zones (cITctI10 m). The c:alculated yearly mortality rate (8-14%) is constant throughout tbe reef and it is similar 10 othen reported for Ibe genus. Assuming a steady state of Ibe populatioo, tbe yearly RlaUitmellt rate should be low, since recruit density ranged from 0.3 10 0.8colonies/m". The renewal time ollbe populatian was estimated in 7 10 13 years, suggesting a constant genetic recombinatian Ibat may help develop local adaptatians by llelectian. The recruit abundance was not proportianal 10 adult abundance, pedlaps because P. panamensis is gonocoric and ita larvae spend several days in the water, a procesa which helps homogenize Ibe disuibutian of planulae in the reef.