Caracterização do hábitat de Epinephelus marginatus (Lowe, 1834) na ilha do Campeche, Santa Catarina, Brasil

Orientador : Prof. Dr. Maurício Hostim-SilvaDissertação (mestrado) - Universidade Federal do Paraná, Setor de Ciências Biológicas, Programa de Pós-Graduação em Zoologia. Defesa: Curitiba, 05/03/2009Inclui bibliografiaArea de concentração: ZoologiaResumo: O estudo da comunidade de peixes recifais da ilha do Campeche, SC, é apresentado neste trabalho, com primeira lista de espécies de peixes recifais para a ilha e dados de densidade, abundância e categorias trófica. Foram encontradas 65 espécies pertencentes a 33 famílias. A densidade média total foi de 44,14 indivíduos/40m² ± 32,58. Parablennius pilicornis e Parablennius marmoreus, Stegastes fuscus, Abudefduf saxatilis e Diplodus argenteus foram as espécies que apresentaram as maiores densidade médias e abundancia. A alta abundancia de juvenis indica que a Ilha do Campeche é um importante local de assentamento de peixes recifais e, provavelmente, uma área que exporta recrutas para costões, parcéis e ilhas próximas. Outros objetivos desta pesquisa fioram de determinar as principais características do ambiente para a espécie Mycteroperca marginata e aumentar o conhecimento sobre a utilização do hábitat pela garoupa verdadeira na Ilha do Campeche, SC. A garoupa verdadeira é o serranídeo mais abundante da região Sul do Brasil. É o principal alvo dos caçadores submarinos sendo um importante recurso pesqueiro para o estado de Santa Catarina. Atualmente está na lista das espécies ameaçadas da IUCN. Apresenta hábitos demersais estando sempre relacionada a ambientes de costão rochoso. Por ser uma espécie predadora de topo, exercem grande influência sobre a densidade de suas presas, assumindo um importante papel na manutenção do equilíbrio ecológico dos ambientes de costão rochoso Após um ano de pesquisa somando 24 horas de esforço amostral subaquático foram coletados dados de 324 indivíduos de garoupa verdadeira com duas metodologias: censo visual em transecções e busca intensiva. A espécie apresentou uma densidade média anual de 18,50 ind./40m² ±12,07. A presença de juvenis da nos 12 meses de amostragem, sugere que a reprodução de M. marginata ocorre parceladamente, ao longo de toda primavera e verão. Foi possivel determinar algumas características do habitat, com detalhes importantes para uma melhor compreensão da preferência pelo tipo e complexidade do substrato. Durante as amostragens foi registrada a primeira ocorrência de uma espécie exótica, Chromis limbata para o oceano Atlântico ocidental.Abstract: The community structure of reef fishes of the Campeche island, SC, is presented in this study with the first local reef fish checklist for the island, their densitiy, abundance and trophic structure. Sixty-five species belonging to thirty-three families were observed. Total mean density found for all individuals was 44,14 individuals/40m² ± 32,58. Parablennius pilicornis and Parablennius marmoreus , Stegastes fuscus, Abudefduf saxatilis e Diplodus argenteus presented the higher values for mean density and abundance. Individuals measuring less than 10 cm were the most abundant. These important results indicate that Campeche Island is an important settlement and export site for reef fishes, being a possible recruits export area for the neighborhood. This research also had as objective determine the main characteristics of the microhabitat of the dusky grouper, Mycteroperca marginata and increase the knowledge on it’s habitat in Campeche Island, SC. The Dusky grouper, Mycteroperca marginata, is the most abundant grouper on South Brazil. It is the main target of spear diving represents an important fishery resource in Santa Catarina State and is listed on the IUCN red list. This species has demersal habits and is associated with rocky bottom environments. As a top predator it has great influence on its preys density, assuming an important role in the maintenance of the ecological balance of rocky shore environments. Throughout the study year, after 24 hours of sub aquatic surveys using two different visual census techniques, 324 individuals of Dusky grouper were observed. This species showed a mean density of 18,50 ind./40m² ±12,07 in this site. This island represents an important settlement site and possible source of recruits export in this region. The obtained data suggest that the M. marginata reproduction occurs at in dispersed events throughout spring and summer. It was possible to determine some of the characteristics of this species habitat, with important details on type and substrate complexity preference. The first record for an exotic species, Chromis limbata, in Western Atlantic coast is reported

Photography-based taxonomy is inadequate, unnecessary, and potentially harmful for biological sciences

The question whether taxonomic descriptions naming new animal species without type specimen(s) deposited in collections should be accepted for publication by scientific journals and allowed by the Code has already been discussed in Zootaxa (Dubois & Nemésio 2007; Donegan 2008, 2009; Nemésio 2009a–b; Dubois 2009; Gentile & Snell 2009; Minelli 2009; Cianferoni & Bartolozzi 2016; Amorim et al. 2016). This question was again raised in a letter supported by 35 signatories published in the journal Nature (Pape et al. 2016) on 15 September 2016. On 25 September 2016, the following rebuttal (strictly limited to 300 words as per the editorial rules of Nature) was submitted to Nature, which on 18 October 2016 refused to publish it. As we think this problem is a very important one for zoological taxonomy, this text is published here exactly as submitted to Nature, followed by the list of the 493 taxonomists and collection-based researchers who signed it in the short time span from 20 September to 6 October 2016

A922 Sequential measurement of 1 hour creatinine clearance (1-CRCL) in critically ill patients at risk of acute kidney injury (AKI)

Meeting abstrac

Multidifferential study of identified charged hadron distributions in ZZ-tagged jets in proton-proton collisions at s=\sqrt{s}=13 TeV

Jet fragmentation functions are measured for the first time in proton-proton collisions for charged pions, kaons, and protons within jets recoiling against a $Z$ boson. The charged-hadron distributions are studied longitudinally and transversely to the jet direction for jets with transverse momentum 20 $< p_{\textrm{T}} < 100$ GeV and in the pseudorapidity range $2.5 < \eta < 4$. The data sample was collected with the LHCb experiment at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 1.64 fb$^{-1}$. Triple differential distributions as a function of the hadron longitudinal momentum fraction, hadron transverse momentum, and jet transverse momentum are also measured for the first time. This helps constrain transverse-momentum-dependent fragmentation functions. Differences in the shapes and magnitudes of the measured distributions for the different hadron species provide insights into the hadronization process for jets predominantly initiated by light quarks.Comment: All figures and tables, along with machine-readable versions and any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2022-013.html (LHCb public pages

Study of the B−→Λc+Λˉc−K−B^{-} \to \Lambda_{c}^{+} \bar{\Lambda}_{c}^{-} K^{-} decay

The decay $B^{-} \to \Lambda_{c}^{+} \bar{\Lambda}_{c}^{-} K^{-}$ is studied in proton-proton collisions at a center-of-mass energy of $\sqrt{s}=13$ TeV using data corresponding to an integrated luminosity of 5 $\mathrm{fb}^{-1}$ collected by the LHCb experiment. In the $\Lambda_{c}^+ K^{-}$ system, the $\Xi_{c}(2930)^{0}$ state observed at the BaBar and Belle experiments is resolved into two narrower states, $\Xi_{c}(2923)^{0}$ and $\Xi_{c}(2939)^{0}$, whose masses and widths are measured to be $$m(\Xi_{c}(2923)^{0}) = 2924.5 \pm 0.4 \pm 1.1 \,\mathrm{MeV}, \\ m(\Xi_{c}(2939)^{0}) = 2938.5 \pm 0.9 \pm 2.3 \,\mathrm{MeV}, \\ \Gamma(\Xi_{c}(2923)^{0}) = \phantom{000}4.8 \pm 0.9 \pm 1.5 \,\mathrm{MeV},\\ \Gamma(\Xi_{c}(2939)^{0}) = \phantom{00}11.0 \pm 1.9 \pm 7.5 \,\mathrm{MeV},$$ where the first uncertainties are statistical and the second systematic. The results are consistent with a previous LHCb measurement using a prompt $\Lambda_{c}^{+} K^{-}$ sample. Evidence of a new $\Xi_{c}(2880)^{0}$ state is found with a local significance of $3.8\,\sigma$, whose mass and width are measured to be $2881.8 \pm 3.1 \pm 8.5\,\mathrm{MeV}$ and $12.4 \pm 5.3 \pm 5.8 \,\mathrm{MeV}$, respectively. In addition, evidence of a new decay mode $\Xi_{c}(2790)^{0} \to \Lambda_{c}^{+} K^{-}$ is found with a significance of $3.7\,\sigma$. The relative branching fraction of $B^{-} \to \Lambda_{c}^{+} \bar{\Lambda}_{c}^{-} K^{-}$ with respect to the $B^{-} \to D^{+} D^{-} K^{-}$ decay is measured to be $2.36 \pm 0.11 \pm 0.22 \pm 0.25$, where the first uncertainty is statistical, the second systematic and the third originates from the branching fractions of charm hadron decays.Comment: All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2022-028.html (LHCb public pages

Measurement of the ratios of branching fractions R(D∗)\mathcal{R}(D^{*}) and R(D0)\mathcal{R}(D^{0})

The ratios of branching fractions $\mathcal{R}(D^{*})\equiv\mathcal{B}(\bar{B}\to D^{*}\tau^{-}\bar{\nu}_{\tau})/\mathcal{B}(\bar{B}\to D^{*}\mu^{-}\bar{\nu}_{\mu})$ and $\mathcal{R}(D^{0})\equiv\mathcal{B}(B^{-}\to D^{0}\tau^{-}\bar{\nu}_{\tau})/\mathcal{B}(B^{-}\to D^{0}\mu^{-}\bar{\nu}_{\mu})$ are measured, assuming isospin symmetry, using a sample of proton-proton collision data corresponding to 3.0 fb${ }^{-1}$ of integrated luminosity recorded by the LHCb experiment during 2011 and 2012. The tau lepton is identified in the decay mode $\tau^{-}\to\mu^{-}\nu_{\tau}\bar{\nu}_{\mu}$. The measured values are $\mathcal{R}(D^{*})=0.281\pm0.018\pm0.024$ and $\mathcal{R}(D^{0})=0.441\pm0.060\pm0.066$, where the first uncertainty is statistical and the second is systematic. The correlation between these measurements is $\rho=-0.43$. Results are consistent with the current average of these quantities and are at a combined 1.9 standard deviations from the predictions based on lepton flavor universality in the Standard Model.Comment: All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2022-039.html (LHCb public pages

Rationale, study design, and analysis plan of the Alveolar Recruitment for ARDS Trial (ART): Study protocol for a randomized controlled trial

Background: Acute respiratory distress syndrome (ARDS) is associated with high in-hospital mortality. Alveolar recruitment followed by ventilation at optimal titrated PEEP may reduce ventilator-induced lung injury and improve oxygenation in patients with ARDS, but the effects on mortality and other clinical outcomes remain unknown. This article reports the rationale, study design, and analysis plan of the Alveolar Recruitment for ARDS Trial (ART). Methods/Design: ART is a pragmatic, multicenter, randomized (concealed), controlled trial, which aims to determine if maximum stepwise alveolar recruitment associated with PEEP titration is able to increase 28-day survival in patients with ARDS compared to conventional treatment (ARDSNet strategy). We will enroll adult patients with ARDS of less than 72 h duration. The intervention group will receive an alveolar recruitment maneuver, with stepwise increases of PEEP achieving 45 cmH(2)O and peak pressure of 60 cmH2O, followed by ventilation with optimal PEEP titrated according to the static compliance of the respiratory system. In the control group, mechanical ventilation will follow a conventional protocol (ARDSNet). In both groups, we will use controlled volume mode with low tidal volumes (4 to 6 mL/kg of predicted body weight) and targeting plateau pressure &lt;= 30 cmH2O. The primary outcome is 28-day survival, and the secondary outcomes are: length of ICU stay; length of hospital stay; pneumothorax requiring chest tube during first 7 days; barotrauma during first 7 days; mechanical ventilation-free days from days 1 to 28; ICU, in-hospital, and 6-month survival. ART is an event-guided trial planned to last until 520 events (deaths within 28 days) are observed. These events allow detection of a hazard ratio of 0.75, with 90% power and two-tailed type I error of 5%. All analysis will follow the intention-to-treat principle. Discussion: If the ART strategy with maximum recruitment and PEEP titration improves 28-day survival, this will represent a notable advance to the care of ARDS patients. Conversely, if the ART strategy is similar or inferior to the current evidence-based strategy (ARDSNet), this should also change current practice as many institutions routinely employ recruitment maneuvers and set PEEP levels according to some titration method.Hospital do Coracao (HCor) as part of the Program 'Hospitais de Excelencia a Servico do SUS (PROADI-SUS)'Brazilian Ministry of Healt