Zarucki, M., and González-Bergonzoni, I., and Teixeira-de-Mello, F., and Duarte, A., and Serra, S., and Quintans, F., and Loureiro, M.

Based on National Collections records, this article presents the first report of eight freshwater fish speciesfor Uruguay in the middle and lower Uruguay River basin, extending their current distribution: Cyanocharax alegretensisMalabarba and Weitzman, 2003; Leporinus lacustris Amaral Campos, 1945; Microglanis aff. eurystoma Malabarba andMahler, 1998; Tatia boemia Koch and Reis, 1996; Lepthoplosternum pectorale (Boulenger, 1895); Crenicichla missioneiraLucena and Kullander, 1992; C. minuano Luce...

Roberto Iturrino-Monge, and Maria L. Avila-Agüero, and Claudio R. Avila-Agüero, and Tatiana Moya-Moya, and Alejandro Cañas-Coto, and Kattia Camacho-Badilla, and Betzana Zambrano-Mora

OBJECTIVES: Since 1993 dengue has become more frequent in Costa Rica. Adults have been the most affected population, while children have remained virtually unharmed. So far no studies have investigated how many asymptomatic children have been affected by this virus. This pilot study documents the seroprevalence, measured as the presence of IgG antibodies, of dengue virus in asymptomatic children from two different geographical areas. METHODS: This descriptive, prospective epidemiologic study com...

Spišák Ján, and Malindžák Dušan

Narážacie pece Oce¾ s r.o. VSŽ a. s. Košice, zabezpeèujú ohrev brám pre širokú teplú válcovaciu tra TŠP 1700. Súèasný spôsob organizácie toku brám cez narážacie pece spoèíva v cyklickom zavážaní po jednej brame do každej zo štyroch narážacích pecí. Tento postup má za následok, že v druhej zóne narážacích pecí, v ktorej sa bramám dodáva väèšina tepelnej energie, vzniká ich nevýhodná kombinácia a tým aj ve¾ké straty tepla, ktoré zhoršujú ekonomiku spoloènosti. V èlánku je popísaný nový spôsob zav...

Emma E. Johnson, and Miles D. Medina, and Ada C. Bersoza Hernandez, and Gregory A. Kusel, and Audrey N. Batzer, and Christine Angelini

Background Abundance of the commercially and ecologically important Eastern oyster, Crassostrea virginica, has declined across the US Eastern and Gulf coasts in recent decades, spurring substantial efforts to restore oyster reefs. These efforts are widely constrained by the availability, cost, and suitability of substrates to support oyster settlement and reef establishment. In particular, oyster shell is often the preferred substrate but is relatively scarce and increasingly expensive. Thus, th...

Juan B. VILAR

RESUMEN: A comienzos del siglo XIX sobrevivían en los estados musulmanes del norte de África algunas prácticas poco compatibles con el derecho internacional occidental tales como el corso indiscriminado contra la navegación mercante, el cautiverio y rescate de cristianos, y el sistema de regalos o compra de la paz mediante un tributo preceptivo. Entre esos países se hallaba la Regencia turca de Trípoli, regida desde 1711 por bajáes autónomos de la familia Caramanli. Sin embargo tres expediciones...

Danielle Labbé

Jung Nyun Kim, and Jung Hwa Choi, and Yang Jae Im, and Hyun-su Jo

Abstract Balssaxius habereri (Balss, 1903) has been newly reported in Korean waters. This species was previously known from the Pacific coast of northern Japan, Korea Strait, Yellow Sea, and Japanese coast of the East Sea. Specimens were collected from western Jeju Island using otter trawls at depths of 65–85 m. Regarding Korean axiid shrimps, a single species, Boasaxius princeps (Boas, 1880), previously known as Axiopsis princeps in Korea, has been recorded. B. habereri is easily distinguished ...

Dominik Winckelmann, and Franziska Bleeke, and Peter Bergmann, and Clemens Elle, and Gerd Klöck

Abstract The potential use of non-arable land in the al-Wusta region of the Sultanate of Oman for the production of algae biomass was examined. Brackish cleaned production water from oil production supplemented with commercial fertilizer was used as growth medium. The indigenous isolate Cyanobacterium aponinum WP7(1) was grown in open ponds using batch or semi-continuous cultivation. Biomass production rates of 15–24 g/m2/day were achieved. The change of salinity due to evaporation, which was th...

Abdel-Aziz A. Khidr, and Ashraf E. Said, and Ola A. Abu Samak, and Sheren E. Abu Sheref

The present study has revealed, for the first time, the presence of the monogenean parasite, Microcotyloides sp., on the gills of the small scaled terapon fish, Terapon puta, inhabiting the costal region of the Mediterranean Sea near Damietta province, Egypt. This work was carried out between May 2006 and April 2007. A total sample of 180 fish specimens, 15 fish a month, were examined. Seasonally, the prevalence and mean intensity of the Microcotyloides sp. are found to be 84% and 3.38 parasite/...

Reecha A Parikh, and Toral P Kobawala, and Trupti I Trivedi, and Mahnaz M Kazi, and Nandita R Ghosh

Aim: The aim of this study is to analyze the protein expression of interleukin 18 (IL-18) in patients with untreated breast cancer and further to evaluate its clinical efficacy in predicting treatment outcome. Methods: In the present study, a total of 50 untreated patients with invasive ductal carcinoma of breast were included in the study. Expression of IL-18 was studied by immunohistochemistry method. Statistical analysis was carried out using Statistical Package for Social Sciences statistica...

Jusset Teresa García-Navia, and Javier Tornero López, and Juan José Egea-Guerrero, and Angel Vilches Arenas, and Tiburcio Vázquez Gutiérrez

Background and goal of study: there is evidence that perioperative intravenous ketamine and lidocaine reduce postoperative pain, postoperative opioids consumption, shortens hospital stay and accelerates intestinal function recovery. However, it has not been studied the beneficial effects in the intraoperative period. The aim of this study was to evaluate the effect of a single dose of lidocaine and ketamine on intraoperative opioids requirements in patients undergoing elective gynecological lapa...

Shayeghi Mansoreh, and Doosti Soghra, and Bazrafkan Sara, and Hosseini-Vasoukolaei Nasibeh, and Vatandoost Hassan, and Akhavan Amir Ahmad, and Vatandoost Sajad, and Arandian Mohamd Hossein

Objective: To determine the fauna of aquatic insects in Zayandeh River of Isfahan carried out in Tehran University of Medical Sciences in 2011. Methods: This study was performed in Isfahan, central of Iran in Zayandeh River. This was a descriptive study. Having fulfilled sampling for several times, we collected nearly 76 samples from different parts of river. Then they were sealed in an individual jars containing some water obtained from their habitat. Next, the insects were put in jars con...

Ez-zaki, H., and Diouri, A., and Kamali-Bernard, S., and Sassi, O.

Additions of dredged marine sediments and oyster shell powder (OS) as cement substitute materials in mortars are examined by several techniques. The sediments have high water and chloride contents and calcite, quartz, illite and kaolinite as principal minerals. The OS powders are entirely composed of calcium carbonate and traces of other impurities. Four mixtures of treated sediments and OS powders at 650 °C and 850 °C are added to Portland cement at 8%, 16% and 33% by weight. The hydration of c...

Vlaho Brailo, and Ivica Richter, and Ana Andabak Rogulj, and Vanja Vučićević Boras, and Ivana Škrinjar

This study presents the process of implementing an e-learning course for clinical education in oral medicine and examines its impact on students’ knowledge and satisfaction. Thirty six (39.6%) fifth-year undergraduate students participated in the study. Every week before their clinical practice, students studied relevant e-learning materials and completed an assessment test. At the end of the semester, students’ knowledge and attitudes towards e-learning were assessed by the knowledge test and a...

Małgorzata Kostecka

Background. A healthy diet in early life not only contributes to physical and intellectual development, but it can also reduce the risk of disease in adulthood. There is growing evidence to indicate that childhood diets are highly correlated with health in adult years. Eating habits formed in childhood persist in later life. Objective. The objective of this study was to evaluate the diets of preschool children aged 3 to 6 years and to identify statistical correlations between dietary factors an...

E. C. H. van Dongen, and E. C. H. van Dongen, and E. C. H. van Dongen, and E. C. H. van Dongen, and N. Kirchner, and N. Kirchner, and M. B. van Gijzen, and R. S. W. van de Wal, and T. Zwinger, and G. Cheng, and G. Cheng, and P. Lötstedt, and P. Lötstedt, and L. von Sydow, and L. von Sydow

<p>Ice flow forced by gravity is governed by the full Stokes (FS) equations, which are computationally expensive to solve due to the nonlinearity introduced by the rheology. Therefore, approximations to the FS equations are commonly used, especially when modeling a marine ice sheet (ice sheet, ice shelf, and/or ice stream) for 10³ years or longer. The shallow ice approximation (SIA) and shallow shelf approximation (SSA) are commonly used but are accurate only for certain parts o...

Christyn Bailey, and Aurélie Rubin, and Nicole Strepparava, and Helmut Segner, and Jean-François Rubin, and Thomas Wahli

Many ecosystems are influenced simultaneously by multiple stressors. One important environmental stressor is aquatic pollution via wastewater treatment plant (WWTP) effluents. WWTP effluents may contribute to eutrophication or contain anthropogenic contaminants that directly and/or indirectly influence aquatic wildlife. Both eutrophication and exposure to anthropogenic contaminants may affect the dynamics of fish-parasite systems. With this in mind, we studied the impact of WWTP effluents on inf...

Wojciech lgnalewski, and Joanna Sęk

One of the most important aspects in inland waterway transport is to deal with the issues of construction both transport and entire transportation systems. According to the Inland Naviga&shy;tion Offices in Poland, in the period 2001-2014, there were 350 accidents on national inland water&shy;ways. The main reasons for them are: human factor, hydrological conditions, and technical faults. The main effects of the accidents include hull damage caused by collisions and ship grounding. In order to p...

Shin Eun Chul, and Kim Sung Hwan

Recently, because of the shortage of natural rock, traditional forms of the river and coastal structures have become very expensive to build and maintain. Therefore, the materials used in hydraulic and coastal structures are changing from the traditional rubble and concrete systems to the cheaper materials and systems. One of these alternatives employs geotextile tube technology in the construction of coastal and shore protection structures, such as embankment, groins, jetties, detached breakwat...

Dag Dolmen, and Jon K. Skei, and Inggard Blakar

To determine the impact that anthropogenic acidification has had on natural amphibian populations in Scandinavia and to trace the species’ tolerance limits, in 1988-89 four poorly buffered areas in Norway were investigated; three were anthropogenically acidified and the fourth was not. The increasing acidification from the coastal to inland/highland region of Southern and Southeastern Norway (pH 7.2-4.1) was accompanied by a decreasing frequency of amphibian (Rana temporaria, Bufo bufo and Tr...

Bin Kang, and Xiaoxia Huang, and Yunzhi Yan, and Yunrong Yan, and Hungdu Lin

Effective conservation of ecosystems requires deep knowledge concerning multiple aspects of biodiversity including alpha and beta components of species richness, taxonomic, and functional diversity, as well as their relationships. The taxonomic and functional α-diversity positively correlated to species richness and functional evolution exceeded taxonomic differentiation. We divided the Yangtze whole basin into 56 units, and then the information on fish composition and their distribution in each...

Bethan C. O'Leary, and Callum M. Roberts

Coastal nations have embarked on a rapid program of marine protected area (MPA) establishment, incentivised by the approaching 2020 deadline of United Nations global marine protection targets. Alongside, efforts are underway to extend protection into areas beyond national jurisdiction through a new international legally binding instrument. These developments are welcome but there are risks that in meeting them, nations will still fail to supply adequate protection to marine life. An increasing n...

Tormod Haraldstad, and Thrond Oddvar Haugen, and Reidar Borgstrøm, and Bror Jonsson

The precision of growth estimates based on fish scales often remains uncertain because of withinindividual variation in scale size and scale patterns, and also due to measurement errors. Based on scale readings of Atlantic salmon, we show that errors decreased with number of times and number of scales read per fish. The annual number of scale circuli was not constant, but positively correlated with annual specific growth rates. Number of circuli deposited after the last winter correlated positiv...

Andrey Przhiboro, and Lauri Paasivirta

Shores of lentic waters are poorly studied as habitats of Chironomidae. We investigated floating shore marsh surrounding the lakes Bol’shoe Rakovoe (Äyräpäänjärvi or Eteläjärvi) and Okhotnich’e (Muolaanlampi), shallow mesotrophic wetlands in the Karelian Isthmus. Our research aimed to identify species structure of immature chironomid assemblages in this peculiar habitat and to provide their quantitative assessment. Five sites of the water margin zone (a 20-m part of floating marsh adjoining the...

Odd Terje Sandlund, and Eivind Haugerud, and Sigurd Rognerud, and Reidar Borgstrøm

In the complex fish community of Lake Skasen, southeastern Norway, the relative population density, habitat use and diet of Arctic charr, perch, roach and burbot was studied by a gill net survey during June-September 2010. A marked segregation in habitat use was observed, with Arctic charr and burbot captured in the profundal and deepest part of the pelagic habitat, and perch and roach captured in the littoral and upper part of the pelagic. Perch dominated the total catches, followed by roach. A...

Cooper Cindy L, and Campbell Michael J, and Arain Mubashir, and Lancaster Gillian A

<p>Abstract</p> <p>Background</p> <p>In 2004, a review of pilot studies published in seven major medical journals during 2000-01 recommended that the statistical analysis of such studies should be either mainly descriptive or focus on sample size estimation, while results from hypothesis testing must be interpreted with caution. We revisited these journals to see whether the subsequent recommendations have changed the practice of reporting pilot studies. We also conducted a survey to identify th...

Szmant Alina M, and Miller David J, and Manohar Chitra F, and Terry Astrid Y, and Voolstra Christian, and Brokstein Peter B, and Schwarz Jodi A, and Coffroth Mary, and Medina Mónica

Björklund Martin, and Röijezon Ulrik, and Bergenheim Mikael, and Djupsjöbacka Mats

<p>Abstract</p> <p>Background</p> <p>Chronic neck pain is a common problem and is often associated with changes in sensorimotor functions, such as reduced proprioceptive acuity of the neck, altered coordination of the cervical muscles, and increased postural sway. In line with these findings there are studies supporting the efficacy of exercises targeting different aspects of sensorimotor function, for example training aimed at improving proprioception and muscle coordination. To further develop...

Anna Echterhoff

Faghir, M.B., and Shafii, S.

In the present study the freshwater algae of Siahdarvishan River were sampled on a montly basis from December 2007 through November 2008. Three sampling stations (Gaght roudkhan , Shahkezr dame and Talab laleh ) were chosen in the river. Some physical and chemical parameters (water temperature , total hardness , nitrate , nitrite, phosphate and pH) of water samples were measured. A total of 84 species were identified including: Chlorophyta, 36 species; Cyanophyta, 24 species; Bacillariophyta...

Park Sunju, and Park Jeong-Su, and Cheon ChunHoo, and Yang Yong Joon, and An Changsuk, and Jang Bo-Hyoung, and Song Yun-Kyung, and Go Hoyeon, and Lee Ju Ah, and Shin Yongcheol, and Ko Seong-Gyu

<p>Abstract</p> <p>Background</p> <p>Obesity, which is described as excessive or abnormal body fat, increases the risk of diet-related diseases. In Korea and around the world, the prevalence of obesity has grown annually from 1998 to 2008. This growth has continued despite various therapeutic efforts. The discovery of new and alternative treatments for obesity should be considered an important priority. Taeumjowi-tang (TJ001), a traditional Korean medicinal extract consisting of eight herbs, is ...

Sven Ebser, and Arne Kersting, and Tim Stöven, and Zhongyi Feng, and Lisa Ringena, and Maximilian Schmidt, and Toste Tanhua, and Werner Aeschbach, and Markus K. Oberthaler

The rare noble gas isotope 39Ar is the ideal tracer to investigate the ventilation of the deep ocean in the time range of 50 to 1000 years. Here the authors constrain transit time distributions in the eastern Tropical Atlantic with 39Ar-measurements done on a sample size of 5 L of water utilising modern atom-optical techniques.

Lyons Devin A, and Mant Rebecca C, and Bulleri Fabio, and Kotta Jonne, and Rilov Gil, and Crowe Tasman P

<p>Abstract</p> <p>Background</p> <p>Anthropogenic activities are believed to have caused an increase in the magnitude, frequency, and extent of macroalgal blooms in marine and estuarine environments. These blooms may contribute to declines in seagrasses and non-blooming macroalgal beds, increasing hypoxia, and reductions in the diversity of benthic invertebrates. However, they may also provide other marine organisms with food and habitat, increase secondary production, and reduce eutrophication...

Glück Tobias M, and Maercker Andreas

<p>Abstract</p> <p>Background</p> <p>Mindfulness has been shown to be effective in treating various medical and mental problems. Especially its incorporation in cognitive-behavioural interventions has improved long-term outcomes of those treatments. It has also been shown, that brief mindfulness-based trainings are effective in reducing distress. There have been few web-based interventions incorporating mindfulness techniques in their manual and it remains unclear whether a brief web-based mindf...

Steiner Gerhard, and Dreyer Hermann

<p>Abstract</p> <p>Background</p> <p>Mitochondrial (mt) gene arrangement is highly variable among molluscs and especially among bivalves. Of the 30 complete molluscan mt-genomes published to date, only one is of a heterodont bivalve, although this is the most diverse taxon in terms of species numbers. We determined the complete sequence of the mitochondrial genomes of <it>Acanthocardia tuberculata and Hiatella arctica</it>, (Mollusca, Bivalvia, Heterodonta) and describe their gene contents and g...

Zdena Křesinová, and Klára Petrů, and Ondřej Lhotský, and Torgeir Rodsand, and Tomáš Cajthaml

Passive sampling is a rapidly developing technology, which is widely used for the monitoring of pollutants in different environments. Passive sampling offers significant advantages over traditional grab sampling. In the present review, the authors summarize the current literature on the methods of passive sampling used in the environmental monitoring of polar or semi-polar compounds in aqueous matrices. Methods of calibrating, design and deployment of samplers are also discussed. A major focus o...

Rajasekar Thirunavukkarasu, and Priyadharshini Pandiyan, and Deivasigamani Balaraman, and Kumaran Subaramaniyan, and George Edward Gnana Jothi, and Sakthivel Manikkam, and Balamurugan Sadaiyappan

Objective: Fresh marine seaweeds Gracilaria edulis, Gracillaria verrcosa, Acanthospora spicifera, Ulva facita, Ulva lacta (U. lacta), Kappaphycus spicifera, Sargassum ilicifolium, Sargassum wightii (S. wightii), Padina tetramatica and Padina gymonospora were collected from Mandapam (Rameshwaram, Tamil Nadu) of South East coast of India and were screened for antibacterial activity. Methods: All the collected seaweeds were extracted by using five different solvent (methanol, isopropanol, acet...

Acivrida Mega Charisma, and Bambang Irawan, and Agoes Soegianto

Contamination of Pb, Cd, Cu, Zn in the flesh on the two types of fish consisting pelagic fish include Black pomfert (Formio niger) whereas among other demersal fish include Tongue sand (Cynoglossus lingua), was conducted in March-December 2013, which was taken from the western part of Madura Strait (Gresik-Ujung pangkah, Surabaya-Kenjeran, and Sidoarjo-Sedati). Pb, Cd, Cu, and Zn detected using AAS (Atomic Absorption Spectrometry) brand Shimadzu AA-6200. The highest content of heavy metals, name...

Víctor Vasquez-Villalobos, and Danny Vergaray, and Sandibel Suarez, and John Valladares, and Augusto Zamora, and Katia Gaspar, and Xiomara Escurra

The study focused on the influence of the variables seawater proportion (%) and bicarbonate concentration on Spirulina sp. biomass production, using a Central Composite Rotational Design (CCRD) to evaluate the optimal regions of biomass production (ϕ), adaptation phase (λ), specific growth rate (µ) and generation time (G), using for each treatment the Gompertz mathematical model. The highest values of biomass (ϕ) log N/N0 : 0.93 were obtained at 168.8 hours; in a culture medium with pH 8.8±0.1; ...

Marcelo D. M. Burns, and Alexandre M. Garcia, and João P. Vieira, and Marlise A. Bemvenuti, and David M. L. Motta Marques, and Vinicius Condini

The communication between the Patos and Mirim lagoon systems occurs via a natural channel called São Gonçalo. In 1977, a dam was built in this channel to prevent entrance of saline waters from Patos Lagoon estuary into the Mirim Lagoon. Our results showed an abrupt discontinuity in salinity and fish species distribution along the study sites. Sites below the dam showed salinity values higher than zero, whereas sites above had zero salinity values across all sampling periods. Marine and estuarine...

Nurhadi Siswanto, and Uly Kurniawati, and Effi Latiffianti, and Ahmad Rusdiansyah, and Ruhul Sarker

Every company desires to have an ideal delivery system with no disruption and no downtime. In reality, disruption events cannot be avoided, especially when delivering products using maritime transportation. Such unwanted and uncontrolled events can include sudden factory downtime, vessel breakdown, jetty congestion at a port, and more. Due to the serious consequences, disruption needs to be subjected to considerable scrutiny because it may influence the performance of the company. Many studies h...

Zhang X, and Shi H, and Zhou J, and Xu Y, and Pu S, and Lv Y, and Wu J, and Cheng Y, and Du D

Xin Zhang,1,2 Haifeng Shi,1,3 Jin Zhou,1 Yongming Xu,1 Shaofeng Pu,1 Yingying Lv,1 Junzhen Wu,1 Yueping Cheng,1 Dongping Du1 1Department of Anesthesiology, Pain Management Center, Shanghai Jiao Tong University Affiliated Sixth People&rsquo;s Hospital, Shanghai, China; 2Center for Translational Pain Medicine, Department of Anesthesiology, Duke University School of Medicine, Durham, NC, USA; 3Department of Anesthesiology, Shanghai Fourth People&rsquo;s Hospital, Shanghai, China Background: Cervica...

Paul Foley, and Dinah A. Okyere, and Charles Mather

We use a Foucault-inspired environmentalities analytical lens to conceptualize alternative sustainability auditing frameworks. The Marine Stewardship Council (MSC) claims to administer the international gold standard for sustainability evaluation of fisheries, yet the livelihoods of many people who depend on Canada's first MSC-certified fishery are in serious jeopardy. After decades of growth that helped fishers and coastal communities alleviate the social consequences of the infamous cod collap...

Hidekazu Yoshioka, and Yuta Yaegashi

A stochastic control model for finding an ecologically sound, fit-for-purpose dam operation policy to suppress bloom of attached algae in its downstream is presented. A singular exactly solvable and a more realistic regular-singular cases are analysed in terms of a Hamilton–Jacobi–Bellman equation. Regularity and consistency of the value function are analysed and its classical verification theorem is established. Practical implications of the mathematical analysis results are discussed focusing ...

Vladimir Kaftan, and Boris Komitov, and Sergey Lebedev

Analysis results of the average annual sea levels in the Caspian Sea obtained from ground and satellite observations, corresponding to solar activity characteristics, magnetic field data, and length of day are presented. Spectra of the indicated processes were investigated and their approximation models were also built. Previously assumed statistical relationships between space-geophysical processes and Caspian Sea level (CSL) changes were confirmed. A close connection was revealed between the l...

Alfredo Bolaños-Herrera, and Adoración Cabrera-Caballero, and Rocío Recio-Castro

La secuencia 18/25S rDNA de la soja y la TTTAGGG de A. thaliana fueron utilizadas como sondas con el objetivo de analizar la organización de los genomas de Pisum sativum, P. fulvum y las líneas F4 (P. sativum X P. fulvum) con la técnica de la hibridación in situ fluorescente (FISH). El experimento se realizó en la Universidad de Córdoba, España, en el verano del 2006. La sonda 18/25S produjo señales de intensidad varia ble en las tres líneas. Estas señales corresponden con los pares de ...

Courtenay E. Parlee, and Melanie G. Wiber

Management of and planning for the Canadian marine environment can be disrupted by conflict, but conflict is inevitable given the plurality of actors, interests, values, and uses of marine space. Unresolved conflict may impede governance objectives and threaten the sustainability of social-ecological systems. Innovative institutional arrangements such as adaptive comanagement theoretically reduce conflict and support sustainable management. The southwest New Brunswick Bay of Fundy Marine Advisor...

Ingrid E. van Putten, and Éva E. Plagányi, and Kate Booth, and Christopher Cvitanovic, and Rachel Kelly, and Andre E. Punt, and Shane A. Richards

Successfully managing current threats to marine resources and ecosystems is largely dependent on our ability to understand and manage human behavior. In recent times we have seen increased growth in research to understand the human dimension of marine resource use, and the associated implications for management. However, despite progress to date, marine research and management have until recently largely neglected the critically important role of "sense of place," and its role in influencing th...

Sohier S. El-Sherif, and Gihan M. El-Khodary, and Amal Z. Ghonim

Mantis shrimp Oratosquilla massevensis is an abundant marine crustacean in Egypt. It is common among the most important predators in many shallow, tropical and subtropical marine habitats. It is poorly understood as many species spend most of their life tucked away in burrows and holes. The objective of this study is to provide information on the histological characteristics of the ovary of female mantis shrimp O. massevensis and the morphology of the spawned egg, using scanning electron microsc...

Green Kathryn, and McDougall Carmel, and Jackson Daniel J, and Simpson Fiona, and Wörheide Gert, and Degnan Bernard M

<p>Abstract</p> <p>Background</p> <p>Instructions to fabricate mineralized structures with distinct nanoscale architectures, such as seashells and coral and vertebrate skeletons, are encoded in the genomes of a wide variety of animals. In mollusks, the mantle is responsible for the extracellular production of the shell, directing the ordered biomineralization of CaCO₃and the deposition of architectural and color patterns. The evolutionary origins of the ability to synthesize calcifie...