WTS database

Title	Pub Year	Author	SearchLink Sort descending
Low-density solvent-based solvent demulsification dispersive liquid-liquid microextraction for the fast determination of trace levels of sixteen priority polycyclic aromatic hydrocarbons in environmental water samples	2011	Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore.	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full Journal of chromatography.A Periodical, Abbrev. J.Chromatogr.A Pub Date Free Form 5-Aug Volume 1218 Issue 31 Start Page 5040 Other Pages 5046 Notes CI: Copyright (c) 2011; JID: 9318488; 0 (Emulsions); 0 (Polycyclic Hydrocarbons, Aromatic); 0 (Solvents); 0 (Water Pollutants, Chemical); 2011/03/31 [received]; 2011/05/18 [revised]; 2011/05/19 [accepted]; 2011/05/27 [aheadofprint]; ppublish Place of Publication Netherlands ISSN/ISBN 1873-3778; 0021-9673 Accession Number PMID: 21676403 Language eng SubFile Evaluation Studies; Journal Article; Research Support, Non-U.S. Gov't; IM DOI 10.1016/j.chroma.2011.05.069 [doi] Output Language Unknown(0) PMID 21676403 Abstract For the first time, the low-density solvent-based solvent demulsification dispersive liquid-liquid microextraction was developed for the fast, simple, and efficient determination of 16 priority polycyclic aromatic hydrocarbons (PAHs) in environmental samples followed by gas chromatography-mass spectrometric (GC-MS) analysis. In the extraction procedure, a mixture of extraction solvent (n-hexane) and dispersive solvent (acetone) was injected into the aqueous sample solution to form an emulsion. A demulsification solvent was then injected into the aqueous solution to break up the emulsion, which turned clear and was separated into two layers. The upper layer (n-hexane) was collected and analyzed by GC-MS. No centrifugation was required in this procedure. Significantly, the extraction needed only 2-3 min, faster than conventional DLLME or similar techniques. Another feature of the procedure was the use of a flexible and disposable polyethylene pipette as the extraction device, which permitted a solvent with a density lighter than water to be used as extraction solvent. This novel method expands the applicability of DLLME to a wider range of solvents. Furthermore, the method was simple and easy to use, and some additional steps usually required in conventional DLLME or similar techniques, such as the aforementioned centrifugation, ultrasonication or agitation of the sample solution, or refrigeration of the extraction solvent were not necessary. Important parameters affecting the extraction efficiency were investigated in detail. Under the optimized conditions, the proposed method provided a good linearity in the range of 0.05-50 mug/L, low limits of detection (3.7-39.1 ng/L), and good repeatability of the extractions (RSDs below 11%, n=5). The proposed method was successfully applied to the extraction of PAHs in rainwater samples, and was demonstrated to be fast, efficient, and convenient. Descriptors Links Book Title Database Publisher Elsevier B.V Data Source Authors Guo,L., Lee,H.K. Original/Translated Title URL Date of Electronic 20110527 PMCID Editors
A persisting secondhand smoke hazard in urban public places: results from fine particulate (PM2.5) air sampling	2011	Department of Public Health, University of Otago Wellington, PO Box 7343 Wellington South, New Zealand. nick.wilson@otago.ac.nz	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full The New Zealand medical journal Periodical, Abbrev. N.Z.Med.J. Pub Date Free Form 4-Mar Volume 124 Issue 1330 Start Page 34 Other Pages 47 Notes JID: 0401067; 0 (Hazardous Substances); 0 (Particulate Matter); 0 (Tobacco Smoke Pollution); CIN: N Z Med J. 2011 Mar 4;124(1330):5-7. PMID: 21681245; epublish Place of Publication New Zealand ISSN/ISBN 1175-8716; 0028-8446 Accession Number PMID: 21681251 Language eng SubFile Comparative Study; Journal Article; Research Support, Non-U.S. Gov't; IM DOI Output Language Unknown(0) PMID 21681251 Abstract AIM: To assess the need for additional smokefree settings, by measuring secondhand smoke (SHS) in a range of public places in an urban setting. METHODS: Measurements were made in Wellington City during the 6-year period after the implementation of legislation that made indoor areas of restaurants and bars/pubs smokefree in December 2004, and up to 20 years after the 1990 legislation making most indoor workplaces smokefree. Fine particulate levels (PM2.5) were measured with a portable real-time airborne particle monitor. We collated data from our previously published work involving random sampling, purposeful sampling and convenience sampling of a wide range of settings (in 2006) and from additional sampling of selected indoor and outdoor areas (in 2007-2008 and 2010). RESULTS: The "outdoor" smoking areas of hospitality venues had the highest particulate levels, with a mean value of 72 mcg/m3 (range of maximum values 51-284 mcg/m3) (n=20 sampling periods). These levels are likely to create health hazards for some workers and patrons (i.e., when considered in relation to the WHO air quality guidelines). National survey data also indicate that these venues are the ones where SHS exposure is most frequently reported by non-smokers. Areas inside bars that were adjacent to "outdoor" smoking areas also had high levels, with a mean of 54 mcg/m3 (range of maximum values: 18-239 mcg/m3, for n=13 measurements). In all other settings mean levels were lower (means: 2-22 mcg/m3). These other settings included inside traditional style pubs/sports bars (n=10), bars (n=18), restaurants (n=9), cafes (n=5), inside public buildings (n=15), inside transportation settings (n=15), and various outdoor street/park settings (n=22). During the data collection in all settings made smokefree by law, there was only one occasion of a person observed smoking. CONCLUSIONS: The results suggest that compliance in pubs/bars and restaurants has remained extremely high in this city in the nearly six years since implementation of the upgraded smokefree legislation. The results also highlight additional potential health gain from extending smokefree policies to reduce SHS exposure in the "outdoor" smoking areas of hospitality venues and to reduce SHS drift from these areas to indoor areas. Descriptors Links Book Title Database Publisher Data Source Authors Wilson,N., Edwards,R., Parry,R. Original/Translated Title URL Date of Electronic 20110304 PMCID Editors
Second-hand smoke in indoor hospitality venues in Pakistan	2011	Medical College, Aga Khan University, Karachi, Pakistan.	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full The international journal of tuberculosis and lung disease : the official journal of the International Union against Tuberculosis and Lung Disease Periodical, Abbrev. Int.J.Tuberc.Lung Dis. Pub Date Free Form Jul Volume 15 Issue 7 Start Page 972 Other Pages 977 Notes JID: 9706389; 0 (Tobacco Smoke Pollution); ppublish Place of Publication France ISSN/ISBN 1815-7920; 1027-3719 Accession Number PMID: 21682974 Language eng SubFile Journal Article; IM DOI 10.5588/ijtld.10.0524 [doi] Output Language Unknown(0) PMID 21682974 Abstract BACKGROUND: Second-hand smoke (SHS) constitutes a significant public health threat in countries with a high smoking prevalence. However, data assessing the quality of indoor air at public venues in Pakistan are limited. OBJECTIVES: To measure mean concentrations of PM(2.5) (particulate matter =2.5 microns in diameter), a sensitive indicator of SHS, in hospitality venues in Pakistan. SETTING AND DESIGN: Data were collected discreetly from 39 indoor venues such as cafes, restaurants and shisha (water-pipe) bars from three major cities in Pakistan. Data were recorded using a portable air quality monitoring device. RESULTS: The overall mean PM(2.5) value for the visited venues was 846 mug/m(3) (95%CI 484-1205). The mean PM(2.5) value was 101 mug/m(3) (95%CI 69-135 mug/m(3)) for non-smoking venues, 689 mug/m(3) (95%CI 241-1138) for cigarette smoking venues and 1745 mug/m(3) (95%CI 925-2565) for shisha smoking venues. CONCLUSION: The significant levels of SHS recorded in this study, in particular from shisha smoking venues, could represent a major public health burden in Pakistan. Appropriate legislation needs to be enforced to protect the health of those exposed to the hazards of second-hand tobacco smoke. Descriptors Links Book Title Database Publisher Data Source Authors Zaidi,S.M., Moin,O., Khan,J.A. Original/Translated Title URL Date of Electronic PMCID Editors
Effects of 24 hours of tobacco withdrawal and subsequent tobacco smoking among low and high sensation seekers	2011	Department of Psychology, University of Kentucky College of Arts and Sciences, University of Kentucky, Lexington, KY 40503, USA. dclee2@email.uky.edu	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco Periodical, Abbrev. Nicotine Tob.Res. Pub Date Free Form Oct Volume 13 Issue 10 Start Page 943 Other Pages 954 Notes LR: 20151119; GR: P50 DA05312/DA/NIDA NIH HHS/United States; JID: 9815751; 6M3C89ZY6R (Nicotine); 7U1EE4V452 (Carbon Monoxide); OID: NLM: PMC3179670; 2011/06/20 [aheadofprint]; ppublish Place of Publication England ISSN/ISBN 1469-994X; 1462-2203 Accession Number PMID: 21690318 Language eng SubFile Comparative Study; Journal Article; Randomized Controlled Trial; Research Support, N.I.H., Extramural; IM DOI 10.1093/ntr/ntr102 [doi] Output Language Unknown(0) PMID 21690318 Abstract INTRODUCTION: Previous studies have indicated that high sensation seekers are more sensitive to the reinforcing effects of nicotine, initiate smoking at an earlier age, and smoke greater amounts of cigarettes. This study examined the influence of sensation-seeking status on tobacco smoking following deprivation in regular tobacco users. METHODS: Twenty healthy tobacco-smoking volunteers with low or high impulsive sensation-seeking subscale scores completed 2 consecutive test days per week for 3 consecutive weeks. Each week, a range of self-report, performance, and cardiovascular assessments were completed during ad libitum smoking on Day 1 and before and after the paced smoking of a tobacco cigarette containing 0.05, 0.6, or 0.9 mg of nicotine following 24 hr of tobacco deprivation on Day 2. In addition, self-administration behavior was analyzed during a 2-hr free access period after the initial tobacco administration. RESULTS: In high sensation seekers, tobacco smoking independent of nicotine yield ameliorated deprivation effects, whereas amelioration of deprivation effects was dependent on nicotine yield among low sensation seekers. However, this effect was limited to a small subset of measures. Subsequent cigarette self-administration increased in a nicotine-dependent manner for high sensation seekers only. CONCLUSIONS: Compared with low sensation seekers, high sensation seekers were more sensitive to the withdrawal relieving effects of nonnicotine components of smoking following 24 hr of deprivation on selective measures and more sensitive to nicotine yield during subsequent tobacco self-administration. These results are consistent with studies suggesting that factors driving tobacco dependence may vary as a function of sensation-seeking status. Descriptors Links Book Title Database Publisher Data Source Authors Lee,D.C., Perkins,K.A., Zimmerman,E., Robbins,G., Kelly,T.H. Original/Translated Title URL Date of Electronic 20110620 PMCID PMC3179670 Editors
Changing patterns of tobacco use in a middle-aged population: the role of snus, gender, age, and education	2011	Department of Public Health and Clinical Medicine, Epidemiology and Global Health, Umea University, Sweden. margareta.norberg@epiph.umu.se	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full Global health action Periodical, Abbrev. Glob.Health.Action Pub Date Free Form Volume 4 Issue Start Page 10.3402/gha.v4i0.5613. Epub 2011 Jun 3 Other Pages Notes LR: 20150204; JID: 101496665; OID: NLM: PMC3118776; OTO: NOTNLM; 2010/09/10 [received]; 2011/03/21 [revised]; 2011/05/03 [accepted]; 2011/06/03 [epublish]; ppublish Place of Publication Sweden ISSN/ISBN 1654-9880; 1654-9880 Accession Number PMID: 21695071 Language eng SubFile Journal Article; Research Support, Non-U.S. Gov't; IM DOI 10.3402/gha.v4i0.5613 [doi] Output Language Unknown(0) PMID 21695071 Abstract BACKGROUND: In Sweden, the smoking prevalence has declined. In 2007, it was among the lowest in the industrialized world. A steady increase in the use of Swedish oral moist snuff, snus, has occurred in parallel. This development is neither solicited by authorities nor the medical establishment, but rather has occurred along with increased awareness of the dangers of smoking, and has been promoted by product development and marketing of snus. OBJECTIVE: To evaluate time trends in patterns of tobacco use in northern Sweden during 1990-2007. DESIGN: Cross-sectional (99,381 subjects) and longitudinal (26,867 subjects) data from the Vasterbotten Intervention Programme (VIP) 1990-2007 were analyzed. All adults in Vasterbotten County are invited to a VIP health examination at ages 40, 50, and 60 years, and until 1995 also 30 years. Smoking and use of snus were evaluated by gender, age and educational groups. Intermittent smoking was categorized as smoking. RESULTS: From the period 1990-1995 to the period 2002-2007, smoking prevalence decreased from 26 to 16% among men and from 27 to 18% among women. The differences in prevalence increased between educational groups. The decline in smoking was less and the increase of snus use was greater among those with basic education. The use of snus among basic-educated 40-year-olds reached 35% among men and 14% among women during 2002-2007. Dual smoking and snus use increased among men and women with basic education. Smoking without snus use was more prevalent among women. Gender differences in total smoking prevalence (smoking only plus dual use) were small in all age groups, but increased among those with basic education reaching 7.3% during 2002-2007, with women being more frequent smokers. Smoking prevalences were similar among never, former and current snus users. Among the 30,000 former smokers, 38% of men and 64% of women had never used snus. Longitudinal data showed a decline in total tobacco use from baseline until follow-up and this was mainly due to a smoking cessation rate of Descriptors Links Book Title Database Publisher Data Source Authors Norberg,M., Lundqvist,G., Nilsson,M., Gilljam,H., Weinehall,L. Original/Translated Title URL Date of Electronic 20110603 PMCID PMC3118776 Editors
Diversity of lactic acid bacteria associated with traditional fermented dairy products in Mongolia	2011	Key Laboratory of Dairy Biotechnology and Engineering, Education Ministry of P. R. China, Inner Mongolia Agricultural University, Hohhot, Inner Mongolia 010018, P. R. China.	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full Journal of dairy science Periodical, Abbrev. J.Dairy Sci. Pub Date Free Form Jul Volume 94 Issue 7 Start Page 3229 Other Pages 3241 Notes CI: Copyright (c) 2011; JID: 2985126R; 0 (RNA, Bacterial); 0 (RNA, Ribosomal, 16S); 2010/08/16 [received]; 2011/03/18 [accepted]; ppublish Place of Publication United States ISSN/ISBN 1525-3198; 0022-0302 Accession Number PMID: 21700007 Language eng SubFile Journal Article; Research Support, Non-U.S. Gov't; IM DOI 10.3168/jds.2010-3727 [doi] Output Language Unknown(0) PMID 21700007 Abstract Spontaneous milk fermentation has a long history in Mongolia, and beneficial microorganisms have been handed down from one generation to the next for use in fermented dairy products. The objective of this study was to investigate the diversity of lactic acid bacteria (LAB) communities in fermented yak, mare, goat, and cow milk products by analyzing 189 samples collected from 13 different regions in Mongolia. The LAB counts in these samples varied from 3.41 to 9.03 log cfu/mL. Fermented yak and mare milks had almost identical mean numbers of LAB, which were significantly higher than those in fermented goat milk but slightly lower than those in fermented cow milk. In total, 668 isolates were obtained from these samples using de Man, Rogosa, and Sharpe agar and M17 agar. Each isolate was considered to be presumptive LAB based on gram-positive and catalase-negative properties, and was identified at the species level by 16S rRNA gene sequencing, multiplex PCR assay, and restriction fragment length polymorphism analysis. All isolates from Mongolian dairy products were accurately identified as Enterococcus faecalis (1 strain), Enterococcus durans (3 strains), Lactobacillus brevis (3 strains), Lactobacillus buchneri (2 strains), Lactobacillus casei (16 strains), Lactobacillus delbrueckii ssp. bulgaricus (142 strains), Lactobacillus diolivorans (17 strains), Lactobacillus fermentum (42 strains), Lactobacillus helveticus (183 strains), Lactobacillus kefiri (6 strains), Lactobacillus plantarum ssp. plantarum (7 strains), Lactococcus lactis ssp. lactis (7 strains), Leuconostoc lactis (22 strains), Leuconostoc mesenteroides (21 strains), Streptococcus thermophilus (195 strains), and Weissella cibaria (1 strain). The predominant LAB were Strep. thermophilus and Lb. helveticus, which were isolated from all sampling sites. The results demonstrate that traditional fermented dairy products from different regions of Mongolia have complex compositions of LAB species. Such diversity of LAB provides useful information for further studies of probiotic strain selection and starter culture design, with regard to the industrial production of traditional fermented milk. Descriptors Links Book Title Database Publisher American Dairy Science Association. Published by Elsevier Inc Data Source Authors Yu,J., Wang,W.H., Menghe,B.L., Jiri,M.T., Wang,H.M., Liu,W.J., Bao,Q.H., Lu,Q., Zhang,J.C., Wang,F., Xu,H.Y., Sun,T.S., Zhang,H.P. Original/Translated Title URL Date of Electronic PMCID Editors
Bidi and hookah use among Canadian youth: an examination of data from the 2006 Canadian Youth Smoking Survey	2011	Department of Health Studies and Gerontology, University of Waterloo, Waterloo, Ontario, Canada.	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full The Journal of adolescent health : official publication of the Society for Adolescent Medicine Periodical, Abbrev. J.Adolesc.Health Pub Date Free Form Jul Volume 49 Issue 1 Start Page 102 Other Pages 104 Notes LR: 20131121; CI: Copyright (c) 2011; JID: 9102136; 059QF0KO0R (Water); 2010/05/25 [received]; 2010/11/16 [revised]; 2010/11/17 [accepted]; 2011/03/12 [aheadofprint]; ppublish Place of Publication United States ISSN/ISBN 1879-1972; 1054-139X Accession Number PMID: 21700168 Language eng SubFile Journal Article; Research Support, Non-U.S. Gov't; IM DOI 10.1016/j.jadohealth.2010.11.250 [doi] Output Language Unknown(0) PMID 21700168 Abstract PURPOSE: To examine the prevalence and associated factors of bidi and hookah use among Canadian youth. METHODS: Data from 41,886 grade 7 to 12 youth were used to examine factors associated with bidi and hookah use. RESULTS: Youth who are current or former cigarette smokers, have tried marijuana or alcohol, were more likely to use bidi or hookah. CONCLUSIONS: Results suggest bidi and hookah use may be an emerging issue in tobacco control among youth. Findings also support an integrated approach where future prevention efforts should address multiple risk behaviors. Descriptors Links Book Title Database Publisher Society for Adolescent Health and Medicine. Published by Elsevier Inc Data Source Authors Chan,W.C., Leatherdale,S.T., Burkhalter,R., Ahmed,R. Original/Translated Title URL Date of Electronic 20110312 PMCID Editors
Waterpipe smoking, oral cancer and other oral health effects	2011	Oral Medicine, Department of Clinical & Diagnostic Sciences, King's College London Dental Institute, WHO Collaborating Centre for Oral Cancer, UK.	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full Evidence-based dentistry Periodical, Abbrev. Evid Based.Dent. Pub Date Free Form Volume 12 Issue 2 Start Page 44 Other Pages 45 Notes JID: 100883603; CON: Int J Epidemiol. 2010 Jun;39(3):834-57. PMID: 20207606; ppublish Place of Publication England ISSN/ISBN 1476-5446; 1462-0049 Accession Number PMID: 21701545 Language eng SubFile Comment; Journal Article DOI 10.1038/sj.ebd.6400790 [doi] Output Language Unknown(0) PMID 21701545 Abstract DATA SOURCES: MEDLINE, EMBASE and ISI the Web of Science. STUDY SELECTION: Articles in any language that assessed the association between water pipe smoking and any health outcome. Included studies were cohort, case-control and cross-sectional. Studies were excluded if they looked at physiological outcomes, non-tobacco pipe use, or didn't differentiate between this and other smoking habits. DATA EXTRACTION AND SYNTHESIS: Data were abstracted independently by two reviewers using a standardised screening guide and GRADE used to evaluate study quality. The I(2) statistic was used to measure heterogeneity. Odds ratios for the effect of pipe smoking on lung, bladder, oesophageal and nasopharyngeal cancer, oral dysplasia, pregnancy outcomes, periodontal disease, hepatitis, respiratory illness and infertility were extracted. RESULTS: Twenty-three studies were included. Based on the available evidence, waterpipe tobacco smoking was significantly associated with lung cancer, respiratory illness, low birth-weight and periodontal disease. It was not significantly associated with bladder, nasopharyngeal and oesophageal cancers, neither with oral dysplasia or infertility, but the confidence Intervals (CIs) did not exclude important associations. Smoking a waterpipe in groups was not significantly associated with hepatitis C infection. The overall quality of evidence varied from very low to low. CONCLUSIONS: The evidence from very low to low quality studies is that waterpipe tobacco smoking is possibly associated with a number of deleterious health outcomes including lung cancer, respiratory illness, low birth-weight and periodontal disease. Descriptors Links Book Title Database Publisher Data Source Authors Warnakulasuriya,S. Original/Translated Title URL Date of Electronic PMCID Editors
Mainstream smoke of the waterpipe: does this environmental matrix reveal as significant source of toxic compounds?	2011	German Federal Institute for Risk Assessment (BfR), Department of Product Safety, Thielallee 88-92, 14195 Berlin, Germany. Jens.Schubert@bfr.bund.de	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full Toxicology letters Periodical, Abbrev. Toxicol.Lett. Pub Date Free Form 10-Sep Volume 205 Issue 3 Start Page 279 Other Pages 284 Notes LR: 20151119; CI: Copyright (c) 2011; JID: 7709027; 0 (4-(methylnitrosamino)-1-(3-pyridyl)-1-butan-1-ol); 0 (Carcinogens); 0 (Hygroscopic Agents); 0 (Nitrosamines); 0 (Polycyclic Hydrocarbons, Aromatic); 0 (Pyridines); 0 (Smoke); 059QF0KO0R (Water); 3417W Place of Publication Netherlands ISSN/ISBN 1879-3169; 0378-4274 Accession Number PMID: 21712083 Language eng SubFile Comparative Study; Journal Article; Research Support, Non-U.S. Gov't; IM DOI 10.1016/j.toxlet.2011.06.017 [doi] Output Language Unknown(0) PMID 21712083 Abstract In recent years the number of waterpipe smokers has increased substantially worldwide. Here we report on the concentrations of tobacco-specific nitrosamines (TSNAs) and polycyclic aromatic hydrocarbons (PAHs) in waterpipe smoke and the analysis of selected biomarkers indicative for the body burden in waterpipe users. We further identify high amounts of unburned humectants (glycerol and propylene glycol) in the waterpipe smoke as main part of the so-called "tar" fraction. These results give cause for serious concern. For standardization we applied a machine smoking protocol. Smoke was collected on glass fiber filters and analyzed for nicotine, water, humectants, TSNAs, and PAHs. In addition, we determined carbon monoxide and found high amounts in the smoke being causative for high levels of carboxyhemoglobin (COHb) in the blood of smokers. In comparison to the reference cigarette 3R4F, the nicotine contents were 10-times higher, but TSNA levels were found lower in waterpipe smoke. This finding explained the low levels of 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanol detected in the urine of waterpipe smokers. Finally, the levels of benzo[a]pyrene were three times higher in waterpipe smoke compared to the reference cigarette. Altogether, the data presented in this study point to the health hazards associated with the consumption of waterpipes. Descriptors Links Book Title Database Publisher Elsevier Ireland Ltd Data Source Authors Schubert,J., Hahn,J., Dettbarn,G., Seidel,A., Luch,A., Schulz,T.G. Original/Translated Title URL Date of Electronic 20110625 PMCID Editors
Biology and fishery of the lobster Panulirus gracilis in Playa Lagarto, Guanacaste, Costa Rica	2011	helvenn@hotmail.com	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full Revista de biologia tropical Periodical, Abbrev. Rev.Biol.Trop. Pub Date Free Form Jun Volume 59 Issue 2 Start Page 619 Other Pages 633 Notes JID: 0404267; ppublish Place of Publication Costa Rica ISSN/ISBN 0034-7744; 0034-7744 Accession Number PMID: 21721230 Language spa SubFile English Abstract; Journal Article; IM DOI Output Language Unknown(0) PMID 21721230 Abstract Panulirus gracilis is a high valuable lobster species with considerable captures along the tropical Pacific coast. In this study, I present some biological and fishery parameters described after a sample of 843 lobsters, landed in Playa Lagarto from November 2007 to October 2008. From landing records, a total of 74.9% of lobsters were below the minimum legal catch size (80 mm CL). Carapace lengths were in the range of 42.8 and 143.6 mm for males and 115 and 35.8 mm for females. The size structure showed a wide overlapping of population segments, and a trend to increase with depth, where lung diving and "hooka" diving operations take place. Sex ratio was 1.36 M:H. The relationship between weight and LC revealed that females are heavier than males of the same size, and this difference was significant (p Descriptors Links Book Title Database Publisher Data Source Authors Madrigal,H.N. Original/Translated Title Biologia pesquera de la langosta Panulirus gracilis en Playa Lagarto, Guanacaste, Costa Rica URL Date of Electronic PMCID Editors

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