Technological Institute of the Bay of Banderas
Tepic, Mexico
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Tortolero-Langarica J.J.A.,Technological Institute of the Bay of Banderas | Tortolero-Langarica J.J.A.,University of Guadalajara | Rodriguez-Troncoso A.P.,University of Guadalajara | Cupul-Magana A.L.,University of Guadalajara | Carricart-Ganivet J.P.,National Autonomous University of Mexico
PeerJ | Year: 2017

Pocilloporids are one of the major reef-building corals in the eastern tropical Pacific (ETP) and also the most affected by thermal stress events, mainly those associated with El Niño/Southern Oscillation (ENSO) periods. To date, coral growth parameters have been poorly reported in Pocillopora species in the northeastern region of the tropical Pacific. Monthly and annual growth rates of the three most abundant morphospecies (P. cf. verrucosa, P. cf. capitata, and P. cf. damicornis) were evaluated during two annual periods at a site on the Pacific coast of Mexico. The first annual period, 2010-2011 was considered a strong ENSO/La Niña period with cool sea surface temperatures, then followed by a non-ENSO period in 2012-2013. The linear extension rate, skeletal density, and calcification rate averaged (±SD) were 2.31 ± 0.11 cm yr-1, 1.65 ± 0.18 g cm-3, 5.03 ± 0.84 g cm-2 yr-1 respectively, during the strong ENSO event. In contrast, the respective non-ENSO values were 3.50 ± 0.64 cm yr-1, 1.70 ± 0.18 g cm-3, and 6.02 ± 1.36 g cm-2yr-1. This corresponds to 52% and 20% faster linear extension and calcification rates, respectively, during non-ENSO period. The evidence suggests that Pocillopora branching species responded positively with faster growth rates following thermal anomalies, which allow them to maintain coral communities in the region. © 2017 Tortolero-Langarica et al.

Tortolero-Langarica J.J.A.,University of Guadalajara | Tortolero-Langarica J.J.A.,Technological Institute of the Bay of Banderas | Rodriguez-Troncoso A.P.,University of Guadalajara | Carricart-Ganivet J.P.,National Autonomous University of Mexico | Cupul-Magana A.L.,University of Guadalajara
Journal of Experimental Marine Biology and Ecology | Year: 2016

Hermatypic corals are an important sessile group in the benthic structure of tropical coral reef communities. Many organisms, in response to the environmental conditions, have developed different strategies of growth by modifying their morphologies and reproduction mode, as is the case of free-living colonies called coralliths. So far, important parameters such as calcification, growth rates and their relation with biotic and abiotic factors on coralliths have not been described. This study represents the first record of a corallith form of Porites lobata and provides information on its sclerochronology. Coral growth parameters of different coralliths were compared by measuring extension rate (cm y-1), skeletal density (g cm-3), calcification rate (g cm-2 y-1), average age (yr) and sphericity (S). The influence of the environment on corallith growth was assessed using water temperature as an abiotic factor and bioturbation by fish as a biotic factor. Analysis of annual density bands using X-ray densitometry provided a mean extension rate of 0.47 ± 0.23 cm y-1, skeletal density of 1.08 ± 0.14 g cm-3, and calcification rate of 0.51 ± 0.26 g cm-2 y-1. The results reveal differences in growth parameters between coralliths including a strong relationship of calcification rate with seawater temperature. In addition, direct and indirect bioturbations promoted the colony rotation resulting in a hemispherical form. Hence, the evidence suggests that scleractinian corals have developed an important growth strategy that allows the species to form new colonies and maintain successful coral reef communities through free-living corallith growth. © 2016 Elsevier B.V.

Hart C.E.,University of Guadalajara | Ley-Quinonez C.,National Polytechnic Institute of Mexico | Maldonado-Gasca A.,Technological Institute of the Bay of Banderas | Zavalanorzagaray A.,National Polytechnic Institute of Mexico | Alberto Abreu-Grobois F.,National Autonomous University of Mexico
Herpetological Conservation and Biology | Year: 2014

We analyzed relative abundance of nesting Olive Ridley Turtles, Lepidochelys olivacea, on El Naranjo beach, Mexico during 1993–2010, as well as seasonal and spatial distribution of nesting, size of nesting females, and hatching success of nests incubated artificially in polystyrene boxes. El Naranjo beach is located in Bahia de Jaltemba, Nayarit, Mexico where a local non-governmental organization protects a total of 8.3 km of coastline on the north side of the bay. A total of 2,571 nests were protected ex situ with a mean annual 144.5 ± 77.0 (mean ± SD) protected nests (range: 48–267), and 9,457 ± 5,424, hatchlings released (range: 1,850–23,467). During the months of beach monitoring (June-November) significant differences were observed in number of nesting events per month, with maximum nesting occurring between August–October. A total of 57 nesting females were measured during 2009 (n = 18) and 2010 (n = 39). Mean curved carapace length and width was 65.5 cm and 70.7 cm, respectively. Overall hatching success was a relatively high 74.7%. We recommend further research into artificial methods of incubation as this can be an important option in maintaining some populations of sea turtles. © 2014. Catherine Hart. All rights reserved.

Rodriguez Flores R.,Technological Institute of the Bay of Banderas | Lazareno Morfin M.,University of Guadalajara | Espinosa Chaurand L.D.,University of Guadalajara | Basto Rosales M.E.R.,Technological Institute of the Bay of Banderas | Vega Villasante F.,University of Guadalajara
Boletim do Instituto de Pesca | Year: 2012

The objective was to determine the optimal temperature, thermal preference and maximum incipient lethal temperature (TLImax) and minimum (TLImin) for juveniles prawn Macrobrachium tenellum under laboratory conditions using the acute method. The determination of the optimum temperature was made based on the results of growth and survival of juvenile M. tenellum (0.17 ± 0.02 g and 28.56 ± 1.60 mm) maintained at three temperatures (22, 29 and 36°C) for 15 days, in triplicate. The thermal preference was determined in a thermal gradient table with temperatures adjusted to 20, 23, 25, 27, 30, 33, 35 and 39°C, using the acute method, in which 10 juveniles were introduced (0.38 ± 0.21 g and 40.38 ± 10.33 mm) and acclimated for 72 h at 23, 30 and 32°C, recording the percentage of occurrence per camera every 10 min for three hours (in triplicate). The TLImin and TLImax was estimated at 10 organisms (0.50 ± 0.20 g and 39.65 ± 0.72 mm) acclimated for 72 h at 21, 29 and 36°C by increasing or decreasing the water temperature until the death 50% of population. The highest growths in organisms were obtained at 29°C (optimum temperature). The final preferred temperature was 32.25°C, while TLImin and TLImax to 21°C were 42 and 8.1°C; to 29°C, of 43.2 and 10.2°C; and to 36°C, of 43.5 and 11.1°C, respectively.

Salazar-Silva P.,Colegio de Mexico | Salazar-Silva P.,Technological Institute of the Bay of Banderas
Journal of Natural History | Year: 2013

The genus Halosydna is a member of the family Polynoidae, comprising a group of polychaete annelids commonly known as scale worms. The main results in this study are the redescriptions of 14 species. Four new species are described from the Mexican Pacific. Halosydna leucohyba is newly recorded for the Mexican Caribbean, and H. leius and H. tuberculifer from the Mexican Pacific. The identities of some widely recorded species are clarified, among them H. brevisetosa, H. glabra, H. fuscomarmorata and H. parva. Finally, H. nebulosa and H. virgini are re-established as valid species and a dichotomous key for Halosydna specimens from the tropical eastern Pacific, Grand Caribbean, and other worldwide localities is included. © 2013 Copyright Taylor and Francis Group, LLC.

Salazar-Silva P.,Colegio de Mexico | Salazar-Silva P.,Technological Institute of the Bay of Banderas | Carrera-Parra L.F.,Colegio de Mexico
Zootaxa | Year: 2014

Lepidonopsis humilis (Augener, 1922) has been considered as an amphiamerican species, widely recorded in both the Grand Caribbean region and the Tropical Eastern Pacific. Based on type material and additional materials, L. humilis is redescribed herein and its distribution clarified and restricted. Furthermore, the identity of specimens from the Mexican Pacific is clarified and a new species L. barnichae sp. nov. is described. This species is characterized by conical macrotubercles with slightly curved tips; all elytra with a tuft of papillae on the surface, isolated from the marginal papillae; and the second segment dorsally projecting over the prostomium as a small lobe. Additionally, there is a 17.6% genetic divergence in the nucleotide sequence variation of COI between L. humilis and L. barnichae sp. nov., which supports the morphological differences observed. Thus, L. humilis does not have an amphiamerican distribution but is restricted to the Gran Caribbean region; whereas the specimens from the Tropical Eastern Pacific belong to the newly described species L. barnichae sp. nov. A key to the three known species of Lepidonopsis is included. Copyright © 2014 Magnolia Press.

Tovar-Avila J.,Centro Regional Of Investigaciones Pesqueras Bahia Of Banderas | Gallegos-Camacho R.,Technological Institute of the Bay of Banderas
Hidrobiologica | Year: 2014

The estimated age (around 45 years) from vertebral growth band counts for the largest Sphyrna mokarran caught in the Gulf of California and Central Mexican Pacific in the last decades, locates it as the oldest elasmobranch reported to date in Mexican Pacific waters. The specimen studied was a mature female of approximately 550 kg of total weight and 424 cm of total length, caught by artisanal fishermen using longlines south of the archipelago of Islas Marías on November 11th 2010. The distance between growth bands showed fast growth during the first 10 years. Growth bands after the age of 38 were only visible in the corpus calcareum, though difficult to separate and count. The age estimated in the present study was similar to the maximum age reported for the species in the Atlantic Ocean and Gulf of Mexico, confirming the species as long lived.

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Baha de Banderas, mayo 31 de 2016PROCESO DE ADSCRIPCIN AL IMSSA todos los estudiantes del Instituto Tecnolgico de Baha de Banderas se les anexa el proceso de adscripcin la IMSS, en la parte posterior encontrarn los datos que requieren para hacer dicho trmite.Dudas o ms informacin Departamento de Servicios Escolares ...

Technological Institute of the Bay of Banderas | Entity website

Instituto Tecnolgico de Baha de Banderas - Algunos derechos reservados 2015 Crucero a Punta de Mita S/N, Baha de Banderas, NayaritC.P ...

Technological Institute of the Bay of Banderas | Entity website

Que es el CIIE del Instituto Tecnolgico de Baha de Banderas? El Centro de Incubacin e Innovacin Empresarial, CIIE, del Tecnolgico de Baha de Banderas, es una incubadora de negocios eminentemente verdes o con enfoque de la economa azul. Es un proyecto gestado en colaboracin con el Gobierno Federal, el Gobierno del Estado de Nayarit y el Ayuntamiento de Baha de Banderas ...

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