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Baud M, Macpherson E, Pérez M, Romero J, Ricart AM. Multiple scale assessment of habitat, landscape, and geographic-specific attributes driving decapod assemblages in Posidonia oceanica seagrass meadows. Mar Environ Res 2024; 197:106464. [PMID: 38583356 DOI: 10.1016/j.marenvres.2024.106464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 03/13/2024] [Accepted: 03/15/2024] [Indexed: 04/09/2024]
Abstract
Seagrass meadows are biodiversity hotspots for invertebrate species including decapods. Understanding the drivers of species abundance, richness and diversity of decapod assemblages is crucial for the conservation of such hotspots, but how drivers act across multiple spatial scales remains unexplored. Here we describe the decapod assemblages of Posidonia oceanica seagrass meadows and assess the influence of attributes from three increasing spatial scales (habitat, landscape, and geographical levels) on the assemblages' structure and composition, as well as the variability partitioning among each one of these levels. Overall, geographical level attributes (i.e., inlet aperture, confinement) affected the most the decapod assemblages, while we only found a modest contribution from habitat (e.g., detritus biomass, sediment organic matter) and landscape attributes (e.g., fragmentation). We suggest that decapod assemblages are driven by the interaction of multiple processes occurring at different scales and other highly stochastic phenomena such as larval dispersion and recruitment.
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Affiliation(s)
- Marine Baud
- Departament de Biologia Evolutiva, Ecologia i Ciències Ambientals, Secció d'Ecologia, Facultat de Biologia, Universitat de Barcelona, Av. Diagonal, 643, 08028, Barcelona, Spain
| | - Enrique Macpherson
- Centre d'Estudis Avançats de Blanes (CEAB-CSIC), C. Acc. Cala Sant Francesc 14, 17300, Blanes, Girona, Spain
| | - Marta Pérez
- Departament de Biologia Evolutiva, Ecologia i Ciències Ambientals, Secció d'Ecologia, Facultat de Biologia, Universitat de Barcelona, Av. Diagonal, 643, 08028, Barcelona, Spain
| | - Javier Romero
- Departament de Biologia Evolutiva, Ecologia i Ciències Ambientals, Secció d'Ecologia, Facultat de Biologia, Universitat de Barcelona, Av. Diagonal, 643, 08028, Barcelona, Spain
| | - Aurora M Ricart
- Institut de Ciències del Mar (ICM-CSIC), Passeig Marítim de la Barceloneta 37, 08003, Barcelona, Spain; Bigelow Laboratory for Ocean Sciences, 60 Bigelow Dr, East Boothbay, ME, 04544, United States.
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Macpherson E, Rodríguez-Flores PC, Machordom A. DNA barcoding and morphology revealed the existence of seven new species of squat lobsters in the family Munididae (Decapoda, Galatheoidea) in the southwestern Pacific. Zookeys 2024; 1188:91-123. [PMID: 38222294 PMCID: PMC10782442 DOI: 10.3897/zookeys.1188.114984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 12/05/2023] [Indexed: 01/16/2024] Open
Abstract
Specimens of squat lobsters belonging to the family MunididaeAhyong et al., 2010, representing the genera Garymunida Macpherson & Baba, 2022, Trapezionida Macpherson & Baba, 2022 and Typhlonida Macpherson & Baba, 2022, were collected during several cruises around New Caledonia and Papua New Guinea, Southwest Pacific. The integrative study of these specimens revealed the presence of one new species in Garymunida, five in Trapezionida and one in Typhlonida. We describe and illustrate these new species, providing some new data on the taxonomy of several rare or scarcely studied species of Trapezionida. Molecular data from different markers (mitochondrial and nuclear) was also included, based on data availability, to support the taxonomic status of different species. Finally, a key to species for each genus is also provided.
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Affiliation(s)
- Enrique Macpherson
- Centre d’Estudis Avançats de Blanes (CEAB-CSIC), C. acc. Cala Sant Francesc 14, 17300 Blanes, Girona, SpainCentre d’Estudis Avançats de BlanesBlanesSpain
| | - Paula C. Rodríguez-Flores
- Department of Organismic and Evolutionary Biology, Museum of Comparative Zoology, Harvard University, 26 Oxford St., Cambridge MA 02138, USAHarvard UniversityCambridgeUnited States of America
| | - Annie Machordom
- Museo Nacional de Ciencias Naturales (MNCN-CSIC), José Gutiérrez Abascal, 2, 28006 Madrid, SpainMuseo Nacional de Ciencias NaturalesMadridSpain
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Gaytáncaballero A, Escobarbriones E, Robles R, Macpherson E. Erratum: ADRIANA GAYTÁN-CABALLERO, ELVA ESCOBAR-BRIONES, RAFAEL ROBLES & ENRIQUE MACPHERSON (2022) Munidopsis geyeri and M. exuta (Crustacea: Munidopsidae): A study of two deep-sea, amphi-Atlantic species that co-occur in the southern Gulf of Mexico. Zootaxa 5213 (4): 301-335. Zootaxa 2023; 5277:600. [PMID: 37518299 DOI: 10.11646/zootaxa.5277.3.12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Indexed: 08/01/2023]
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Macpherson E. G.C.B. Poore and S.T. Ahyong. Marine Decapod Crustacea. A Guide to Families and Genera of the World. CSIRO Publishing, CRC Press, 916 pp. Zootaxa 2023; 5271:188-190. [PMID: 37518134 DOI: 10.11646/zootaxa.5271.1.12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Indexed: 08/01/2023]
Affiliation(s)
- Enrique Macpherson
- Centre d'Estudis Avançats de Blanes (CEAB-CSIC); C. acc. Cala Sant Francesc; 14; 17300 Blanes; Girona; Spain..
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Machordom A, Ahyong ST, Andreakis N, Baba K, Buckley D, García-Jiménez R, McCallum AW, Rodríguez-Flores PC, Macpherson E. Deconstructing the crustacean squat lobster genus. INVERTEBR SYST 2022. [DOI: 10.1071/is22013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Unravelling the evolutionary history of taxa requires solid delimitation of the traits characterising these. This can be challenging especially in groups with a highly complex taxonomy. The squat lobster family Munididae contains more than 450 species distributed among 21 genera, Munida being the most speciose (~300 species). Previous phylogenetic studies, based on a small part of the diversity of the group, have suggested polyphyletic origins for Munida and the paraphyly of Munididae. Here, we use an integrative approach based on multi-locus phylogenies (two mitochondrial and three nuclear markers) paired with 120 morphological characters, to resolve taxonomic and evolutionary relationships within Munididae. Our study covers ~60% of the family’s known diversity (over 800 specimens of 291 species belonging to 19 of the 21 genera collected from the Atlantic, Indian and Pacific oceans). Using this information, we confirm the validity of most genera, proposing new ones in cases where the genetic analyses are compatible with morphological characters. Four well-defined munidid clades were recovered, suggesting that new genera should be erected in the currently recognised Munididae (three for the genus Agononida and eleven in Munida), and the genus Grimothea is resurrected. A key to all genera of the family is presented. Molecular clock estimates and ancestral biogeographic area reconstructions complement the taxonomic profiles and suggest some explosive diversification within Munididae during the Cretaceous and the Palaeogene. Further anagenetic events and narrow sympatry accounting for changes in distribution indicate a more limited dispersal capacity than previously considered. Our study unravels how diversification may occur in deep waters and further highlights the importance of the integrative approach in accurately delineating species in understanding the history of a family and the factors driving the evolution. ZooBank LSID: urn:lsid:zoobank.org:pub:16A61C4A-8D96-4372-820F-8EBDF179B43C
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Powell CA, Modi S, Iwata H, Takahashi S, Smit EF, Siena S, Chang DY, Macpherson E, Qin A, Singh J, Taitt C, Shire N, Camidge DR. Pooled analysis of drug-related interstitial lung disease and/or pneumonitis in nine trastuzumab deruxtecan monotherapy studies. ESMO Open 2022; 7:100554. [PMID: 35963179 PMCID: PMC9434416 DOI: 10.1016/j.esmoop.2022.100554] [Citation(s) in RCA: 63] [Impact Index Per Article: 31.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Revised: 06/10/2022] [Accepted: 07/04/2022] [Indexed: 11/28/2022] Open
Abstract
Introduction This pooled analysis of nine phase I and II trastuzumab deruxtecan (T-DXd) monotherapy studies described drug-related interstitial lung disease (ILD)/pneumonitis in patients treated with T-DXd. Methods Patients who received T-DXd across nine studies were included. Investigator-assessed ILD/pneumonitis events were retrospectively reviewed by an independent adjudication committee; events adjudicated as drug-related ILD/pneumonitis are summarized. Results The analysis included 1150 patients (breast cancer, 44.3%; gastric cancer, 25.6%; lung cancer, 17.7%; colorectal cancer, 9.3%; other cancer, 3.0%). Median treatment duration was 5.8 (range, 0.7-56.3) months, with a median of 4 (range, 1-27) prior lines of therapy. The overall incidence of adjudicated drug-related ILD/pneumonitis was 15.4% (grade 5, 2.2%). Most patients with ILD/pneumonitis experienced low-grade events (grade 1 or 2, 77.4%); 87.0% had their first event within 12 months [median, 5.4 (range, <0.1-46.8) months] of their first dose of T-DXd. Based on data review, adjudicated ILD/pneumonitis onset occurred earlier than identified by investigators for 53.2% of events [median difference in onset date, 43 (range, 1-499) days]. Stepwise Cox regression identified several baseline factors potentially associated with increased risk of adjudicated drug-related ILD/pneumonitis: age <65 years, enrollment in Japan, T-DXd dose >6.4 mg/kg, oxygen saturation <95%, moderate/severe renal impairment, presence of lung comorbidities, and time since initial diagnosis >4 years. Conclusions In this pooled analysis of heavily treated patients, the incidence of ILD/pneumonitis was 15.4%, with most being low grade and occurring in the first 12 months of treatment. The benefit–risk of T-DXd treatment is positive; however, some patients may be at increased risk of developing ILD/pneumonitis, and further investigation is needed to confirm ILD/pneumonitis risk factors. Close monitoring and proactive management of ILD/pneumonitis are warranted for all. Interstitial lung disease (ILD)/pneumonitis is a significant adverse event related to trastuzumab deruxtecan (T-DXd). This pooled analysis of nine T-DXd monotherapy studies evaluated ILD/pneumonitis risk in 1150 heavily pretreated patients. Overall incidence of adjudicated T-DXd-related ILD/pneumonitis was 15.4% (grade 1 or 2, 77.4%; grade 5, 2.2%). Within 12 months of their first T-DXd dose, 87.0% of patients had their first event [median, 5.4 (range, <0.1-46.8) months]. Proactive monitoring and prompt diagnosis and management are important to improving ILD/pneumonitis event outcomes.
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Affiliation(s)
- C A Powell
- Catherine and Henry J. Gaisman Division of Pulmonary Critical Care and Sleep Medicine, Icahn School of Medicine at Mount Sinai, New York, USA.
| | - S Modi
- Memorial Sloan Kettering Cancer Center, New York, USA
| | - H Iwata
- Aichi Cancer Center Hospital, Nagoya, Aichi, Japan
| | - S Takahashi
- Medical Oncology, The Cancer Institute Hospital of JFCR, Koto, Tokyo, Japan
| | - E F Smit
- Department of Thoracic Oncology, Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - S Siena
- Department of Oncology and Hemato-Oncology, Università degli Studi di Milano, Milan; Niguarda Cancer Center, Grande Ospedale Metropolitano Niguarda, Milan, Italy
| | - D-Y Chang
- National Taiwan University Hospital, Taipei City, Taiwan
| | | | - A Qin
- Daiichi Sankyo Inc., Basking Ridge, USA
| | - J Singh
- Daiichi Sankyo Inc., Basking Ridge, USA
| | - C Taitt
- Daiichi Sankyo Inc., Basking Ridge, USA
| | - N Shire
- AstraZeneca Pharmaceuticals, Gaithersburg, USA
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Rodríguez-Flores P, Macpherson E, Schnabel K, Ahyong S, Corbari L, Machordom A. Depth as a driver of evolution and diversification of ancient squat lobsters (Decapoda, Galatheoidea, Phylladiorhynchus). Mol Phylogenet Evol 2022; 171:107467. [DOI: 10.1016/j.ympev.2022.107467] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 03/09/2022] [Accepted: 03/15/2022] [Indexed: 11/28/2022]
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Gerdes K, Kihara TC, Martínez Arbizu P, Kuhn T, Schwarz-Schampera U, Mah CL, Norenburg JL, Linley TD, Shalaeva K, Macpherson E, Gordon D, Stöhr S, Messing CG, Bober S, Guggolz T, Christodoulou M, Gebruk A, Kremenetskaia A, Kroh A, Sanamyan K, Bolstad K, Hoffman L, Gooday AJ, Molodtsova T. Megafauna of the German exploration licence area for seafloor massive sulphides along the Central and South East Indian Ridge (Indian Ocean). Biodivers Data J 2021; 9:e69955. [PMID: 34720635 PMCID: PMC8516849 DOI: 10.3897/bdj.9.e69955] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Accepted: 08/06/2021] [Indexed: 11/26/2022] Open
Abstract
Background The growing interest in mineral resources of the deep sea, such as seafloor massive sulphide deposits, has led to an increasing number of exploration licences issued by the International Seabed Authority. In the Indian Ocean, four licence areas exist, resulting in an increasing number of new hydrothermal vent fields and the discovery of new species. Most studies focus on active venting areas including their ecology, but the non-vent megafauna of the Central Indian Ridge and South East Indian Ridge remains poorly known. In the framework of the Indian Ocean Exploration project in the German license area for seafloor massive sulphides, baseline imagery and sampling surveys were conducted yearly during research expeditions from 2013 to 2018, using video sledges and Remotely Operated Vehicles. New information This is the first report of an imagery collection of megafauna from the southern Central Indian- and South East Indian Ridge, reporting the taxonomic richness and their distribution. A total of 218 taxa were recorded and identified, based on imagery, with additional morphological and molecular confirmed identifications of 20 taxa from 89 sampled specimens. The compiled fauna catalogue is a synthesis of megafauna occurrences aiming at a consistent morphological identification of taxa and showing their regional distribution. The imagery data were collected during multiple research cruises in different exploration clusters of the German licence area, located 500 km north of the Rodriguez Triple Junction along the Central Indian Ridge and 500 km southeast of it along the Southeast Indian Ridge.
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Affiliation(s)
- Klaas Gerdes
- INES - Integrated Environmental Solutions, Wilhelmshaven, Germany INES - Integrated Environmental Solutions Wilhelmshaven Germany
| | - Terue Cristina Kihara
- INES - Integrated Environmental Solutions, Wilhelmshaven, Germany INES - Integrated Environmental Solutions Wilhelmshaven Germany
| | - Pedro Martínez Arbizu
- Senckenberg am Meer, German Centre for Marine Biodiversity Research, Wilhelmshaven, Germany Senckenberg am Meer, German Centre for Marine Biodiversity Research Wilhelmshaven Germany
| | - Thomas Kuhn
- Federal Institute for Geosciences and Natural Resources, Hannover, Germany Federal Institute for Geosciences and Natural Resources Hannover Germany
| | - Ulrich Schwarz-Schampera
- International Seabed Authority, Kingston, Jamaica International Seabed Authority Kingston Jamaica
| | - Christopher L Mah
- Smithsonian Institution National Museum of Natural History, Washington, DC, United States of America Smithsonian Institution National Museum of Natural History Washington, DC United States of America
| | - Jon L Norenburg
- Smithsonian Institution National Museum of Natural History, Washington, DC, United States of America Smithsonian Institution National Museum of Natural History Washington, DC United States of America
| | - Thomas D Linley
- Newcastle University, School of Natural and Environmental Sciences, Newcastle, United Kingdom Newcastle University, School of Natural and Environmental Sciences Newcastle United Kingdom
| | - Kate Shalaeva
- Natural History Museum London, London, United Kingdom Natural History Museum London London United Kingdom
| | - Enrique Macpherson
- Centro de Estudios Avanzados de Blanes (CEAB), Blanes, Girona, Spain Centro de Estudios Avanzados de Blanes (CEAB) Blanes, Girona Spain
| | - Dennis Gordon
- NIWA, Newmarket, Auckland, New Zealand NIWA Newmarket, Auckland New Zealand
| | - Sabine Stöhr
- Swedish Museum of Natural History, Stockholm, Sweden Swedish Museum of Natural History Stockholm Sweden
| | - Charles G Messing
- Department of Marine and Environmental Sciences, Nova Southeastern University, Dania Beach, United States of America Department of Marine and Environmental Sciences, Nova Southeastern University Dania Beach United States of America
| | - Simon Bober
- University of Hamburg, Hamburg, Germany University of Hamburg Hamburg Germany
| | - Theresa Guggolz
- University of Hamburg, Hamburg, Germany University of Hamburg Hamburg Germany
| | - Magdalini Christodoulou
- Senckenberg am Meer, German Centre for Marine Biodiversity Research, Wilhelmshaven, Germany Senckenberg am Meer, German Centre for Marine Biodiversity Research Wilhelmshaven Germany
| | - Andrey Gebruk
- P.P. Shirshov Institute of Oceanology, Moscow, Russia P.P. Shirshov Institute of Oceanology Moscow Russia
| | - Antonina Kremenetskaia
- P.P. Shirshov Institute of Oceanology, Moscow, Russia P.P. Shirshov Institute of Oceanology Moscow Russia
| | - Andreas Kroh
- Naturhistorisches Museum, Vienna, Austria Naturhistorisches Museum Vienna Austria
| | - Karen Sanamyan
- Far-Eastern Branch of the Russian Academy of Sciences, Petropavlovsk-Kamchatsky, Russia Far-Eastern Branch of the Russian Academy of Sciences Petropavlovsk-Kamchatsky Russia
| | - Kathrin Bolstad
- Auckland University of Technology, Auckland, New Zealand Auckland University of Technology Auckland New Zealand
| | - Leon Hoffman
- Senckenberg am Meer, German Centre for Marine Biodiversity Research, Wilhelmshaven, Germany Senckenberg am Meer, German Centre for Marine Biodiversity Research Wilhelmshaven Germany
| | - Andrew J Gooday
- National Oceanography Centre, University of Southampton Waterfront Campus, Southampton, United Kingdom National Oceanography Centre, University of Southampton Waterfront Campus Southampton United Kingdom
| | - Tina Molodtsova
- P.P. Shirshov Institute of Oceanology, Moscow, Russia P.P. Shirshov Institute of Oceanology Moscow Russia
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Rodrguez-Flores PC, Macpherson E, Machordom A. Revision of the squat lobsters of the genus Phylladiorhynchus Baba, 1969 (Crustacea, Decapoda, Galatheidae) with the description of 41 new species. Zootaxa 2021; 5008:1-159. [PMID: 34810473 DOI: 10.11646/zootaxa.5008.1.1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Indexed: 11/04/2022]
Abstract
The genus Phylladiorhynchus Baba, 1969 currently contains 11 species, all occurring in the shallow waters and on the continental shelf of the Indian and Pacific oceans. Recent expeditions in these oceans have resulted in the collection of numerous new specimens in need of analysis. We have studied this material using an integrative approach analysing both morphological and molecular (COI and 16S) characters. We describe 41 new species and resurrect three old names: P. integrus (Benedict, 1902) and P. lenzi (Rathbun, 1907), previously synonymized with P. pusillus (Henderson, 1885), and P. serrirostris (Melin, 1939), previously synonymized with P. integrirostris (Dana, 1852). Most species of the genus are described and illustrated. Some species are barely discernible on the basis of morphological characters but are highly divergent genetically. Species of Phylladiorhynchus are mainly distinguishable by the number of epigastric spines and lateral spines of the carapace, the shape and the armature of the rostrum, the number and pattern of the ridges on the carapace and pleon, the shape of thoracic sternite 3 and the armature of the P24 dactyli. A dichotomous identification key to all species is provided.
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Affiliation(s)
- Paula C Rodrguez-Flores
- Centre dEstudis Avants de Blanes (CEAB-CSIC), C. acc. Cala Sant Francesc, 14, 17300 Blanes, Girona, Spain. Museo Nacional de Ciencias Naturales (MNCN-CSIC), Jos Gutirrez Abascal, 2, 28006 Madrid, Spain. .
| | - Enrique Macpherson
- Centre dEstudis Avants de Blanes (CEAB-CSIC), C. acc. Cala Sant Francesc, 14, 17300 Blanes, Girona, Spain. .
| | - Annie Machordom
- Museo Nacional de Ciencias Naturales (MNCN-CSIC), Jos Gutirrez Abascal, 2, 28006 Madrid, Spain..
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Buñuel X, Alcoverro T, Romero J, Arthur R, Ruiz JM, Pérez M, Ontoria Y, Raventós N, Macpherson E, Torrado H, Pagès JF. Warming intensifies the interaction between the temperate seagrass Posidonia oceanica and its dominant fish herbivore Sarpa salpa. Mar Environ Res 2021; 165:105237. [PMID: 33476979 DOI: 10.1016/j.marenvres.2020.105237] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 12/10/2020] [Accepted: 12/11/2020] [Indexed: 06/12/2023]
Abstract
Apart from directly influencing individual life histories of species, climate change is altering key biotic interactions as well, causing community processes to unravel. With rising temperatures, disruptions to producer-consumer relationships can have major knock-on effects, particularly when the producer is a habitat-forming species. We studied how sea surface temperature (SST) modifies multiple pathways influencing the interaction between the foundational seagrass species, Posidonia oceanica, and its main consumer, the fish Sarpa salpa in the Mediterranean Sea. We used a combination of a field-based temperature gradient approaches and experimental manipulations to assess the effect of temperature on seagrass performance (growth) and fish early life history (larval development) as well as on the interaction itself (seagrass palatability and fish foraging activity). Within the range of temperatures assessed, S. salpa larvae grew slightly faster at warmer conditions but maintained their settlement size, resulting in a relatively small reduction in pelagic larval duration (PLD) and potentially reducing dispersion. Under warmer conditions (>24 °C), P. oceanica reduced its growth rate considerably and seemed to display fewer deterring mechanisms as indicated by a disproportionate consumption in choice experiments. However, our field-based observations along the temperature gradient showed no change in fish foraging time, or in other aspects of feeding behaviour. As oceans warm, our results indicate that, while S. salpa may show little change in early life history, its preference towards P. oceanica might increase, which, together with reduced seagrass growth, could considerably intensify the strength of herbivory. It is unclear if P. oceanica meadows can sustain such an intensification, but it will clearly add to the raft of pressures this threatened ecosystem already faces from global and local environmental change.
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Affiliation(s)
- Xavier Buñuel
- Centre d'Estudis Avançats de Blanes (CEAB-CSIC), Accés a la cala Sant Francesc 14, 17300, Blanes, Spain.
| | - Teresa Alcoverro
- Centre d'Estudis Avançats de Blanes (CEAB-CSIC), Accés a la cala Sant Francesc 14, 17300, Blanes, Spain; Nature Conservation Foundation, Amritha 1311, 12th Cross, Vijayanagara 1st Stage, Mysore, 570017, India.
| | - Javier Romero
- Departament de Biologia Evolutiva, Ecologia i Ciencies Ambientals, Facultat de Biologia, Universitat de Barcelona, Av. Diagonal, 643, 08028, Barcelona, Spain.
| | - Rohan Arthur
- Centre d'Estudis Avançats de Blanes (CEAB-CSIC), Accés a la cala Sant Francesc 14, 17300, Blanes, Spain; Nature Conservation Foundation, Amritha 1311, 12th Cross, Vijayanagara 1st Stage, Mysore, 570017, India.
| | - Juan M Ruiz
- Seagrass Ecology Group, Oceanographic Center of Murcia, Spanish Institute of Oceanography, C/ Varadero, 30740, San Pedro del Pinatar, Murcia, Spain.
| | - Marta Pérez
- Departament de Biologia Evolutiva, Ecologia i Ciencies Ambientals, Facultat de Biologia, Universitat de Barcelona, Av. Diagonal, 643, 08028, Barcelona, Spain.
| | - Yaiza Ontoria
- Departament de Biologia Evolutiva, Ecologia i Ciencies Ambientals, Facultat de Biologia, Universitat de Barcelona, Av. Diagonal, 643, 08028, Barcelona, Spain.
| | - Núria Raventós
- Centre d'Estudis Avançats de Blanes (CEAB-CSIC), Accés a la cala Sant Francesc 14, 17300, Blanes, Spain.
| | - Enrique Macpherson
- Centre d'Estudis Avançats de Blanes (CEAB-CSIC), Accés a la cala Sant Francesc 14, 17300, Blanes, Spain.
| | - Héctor Torrado
- Centre d'Estudis Avançats de Blanes (CEAB-CSIC), Accés a la cala Sant Francesc 14, 17300, Blanes, Spain; Departament de Genètica, Microbiologia i Estadística and IRBio, Facultat de Biologia, Universitat de Barcelona, Av. Diagonal, 643, 08028, Barcelona, Spain.
| | - Jordi F Pagès
- Centre d'Estudis Avançats de Blanes (CEAB-CSIC), Accés a la cala Sant Francesc 14, 17300, Blanes, Spain; Departament de Biologia Evolutiva, Ecologia i Ciencies Ambientals, Facultat de Biologia, Universitat de Barcelona, Av. Diagonal, 643, 08028, Barcelona, Spain.
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Raventos N, Torrado H, Arthur R, Alcoverro T, Macpherson E. Temperature reduces fish dispersal as larvae grow faster to their settlement size. J Anim Ecol 2021; 90:1419-1432. [PMID: 33508875 DOI: 10.1111/1365-2656.13435] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Accepted: 12/22/2020] [Indexed: 11/30/2022]
Abstract
As species struggle to cope with rising ocean temperatures, temperate marine assemblages are facing major reorganization. Many benthic species have a brief but critical period dispersing through the plankton, when they are particularly susceptible to variations in temperature. Impacts of rising temperatures can thus ripple through the population with community-wide consequences. However, responses are highly species-specific, making it difficult to discern assemblage-wide patterns in the life histories of different fish species. Here, we evaluate the responses to temperature in the early life histories of several fish species using otolith reconstructive techniques. We also assess the consequences of future warming scenarios to this assemblage. We sampled recent settlers of nine common species across a temperature gradient in the Mediterranean Sea and obtained environmental data for each individual. Using otolith microstructure, we measured early life traits including pelagic larval duration (PLD), growth rate, settlement size, hatching and settlement dates. We used a GLM framework to examine how environmental variables influenced early life-history parameters. We show that increasing temperature results in considerable reduction in the dispersal potential of temperate fish. We find a nearly universal, assemblage-wide decline in pelagic larval duration (PLD) of between 10% and 25%. This was because, with increasing temperature, larvae grew quicker to their settlement size. Settlement size itself was less affected by temperature and appears to be an ontogenetically fixed process. Given current estimates of ocean warming, there could be an assemblage-wide reduction in larval dispersal of up to 50 km across the Mediterranean, reducing connectivity and potentially isolating populations as waters warm.
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Affiliation(s)
- Nuria Raventos
- Centre d'Estudis Avançats de Blanes, CEAB-CSIC, Girona, Spain
| | - Héctor Torrado
- Centre d'Estudis Avançats de Blanes, CEAB-CSIC, Girona, Spain.,Department of Genetics, Microbiology and Statistics and IRBIO, University of Barcelona, Barcelona, Spain
| | - Rohan Arthur
- Centre d'Estudis Avançats de Blanes, CEAB-CSIC, Girona, Spain.,Nature Conservation Foundation, Mysore, India
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12
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Gallardo Salamanca MDLÁ, Macpherson E, Tapia Guerra JM, Asorey CM, Sellanes J. A new species of Munida Leach, 1820 (Crustacea: Decapoda: Anomura: Munididae) from seamounts of the Nazca-Desventuradas Marine Park. PeerJ 2021; 9:e10531. [PMID: 33505787 PMCID: PMC7792524 DOI: 10.7717/peerj.10531] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Accepted: 11/19/2020] [Indexed: 11/20/2022] Open
Abstract
Munida diritas sp. nov. is described for the seamounts near Desventuradas Islands, in the intersection of the Salas & Gómez and Nazca Ridges, Chile. Specimens of the new species were collected in the summit (∼200 m depth) of one seamount and observed by ROV at two nearby ones. This species is characterized by the presence of distinct carinae on the thoracic sternites 6 and 7. Furthermore, it is not related with any species from the continental shelf nor the slope of America, while it is closely related to species of Munida from French Polynesia and the West-Pacific Ocean (i.e., M. ommata, M. psylla and M. rufiantennulata). In situ observations indicate that the species lives among the tentacles of ceriantarid anemones and preys on small crustaceans. The discovery of this new species adds to the knowledge of the highly endemic benthic fauna of seamounts of the newly created Nazca-Desventuradas Marine Park, emphasizing the relevance of this area for marine conservation.
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Affiliation(s)
- María de Los Ángeles Gallardo Salamanca
- Sala de Colecciones Biológicas, Facultad de Ciencias del Mar, Universidad Católica del Norte, Coquimbo, Chile.,Departamento de Biología Marina & Núcleo Milenio Ecología y Manejo Sustentable de Islas Oceánicas, Universidad Católica del Norte, Larrondo 1281, Coquimbo, Chile
| | | | - Jan M Tapia Guerra
- Sala de Colecciones Biológicas, Facultad de Ciencias del Mar, Universidad Católica del Norte, Coquimbo, Chile.,Programa de Magister en Ciencias del Mar Mención Recursos Costeros, Facultad de ciencias del Mar, Universidad Católica del Norte, Coquimbo, Chile
| | - Cynthia M Asorey
- Sala de Colecciones Biológicas, Facultad de Ciencias del Mar, Universidad Católica del Norte, Coquimbo, Chile.,Departamento de Biología Marina & Núcleo Milenio Ecología y Manejo Sustentable de Islas Oceánicas, Universidad Católica del Norte, Larrondo 1281, Coquimbo, Chile
| | - Javier Sellanes
- Sala de Colecciones Biológicas, Facultad de Ciencias del Mar, Universidad Católica del Norte, Coquimbo, Chile.,Departamento de Biología Marina & Núcleo Milenio Ecología y Manejo Sustentable de Islas Oceánicas, Universidad Católica del Norte, Larrondo 1281, Coquimbo, Chile
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13
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Macpherson E, Chan TY, Kumar AB, Rodríguez-Flores PC. On some squat lobsters from India (Decapoda, Anomura, Munididae), with description of a new species of Paramunida Baba, 1988. Zookeys 2020; 965:17-36. [PMID: 32973379 PMCID: PMC7483394 DOI: 10.3897/zookeys.965.55213] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Accepted: 08/06/2020] [Indexed: 11/12/2022] Open
Abstract
Squat lobster specimens belonging to the family Munididae were recently collected along the southwestern coast of the mainland of India and in the Andaman Islands. The specimens belong to two known species, Agononida prolixa (Alcock, 1894) and Munida compacta Macpherson, 1997, and a new species, Paramunida bineeshi sp. nov. We here redescribe A. prolixa and describe and figure the new species. Munida compacta is newly recorded from India, and we figure the live coloration. In addition, molecular and phylogenetic analyses of two mitochondrial markers (16S rRNA and COI) revealed the phylogenetic relationships of M. compacta and P. bineeshi sp. nov. with their most closely related congeners. The genetic similarity among the individuals of M. compacta from different locations is also addressed.
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Affiliation(s)
- Enrique Macpherson
- Centre d'Estudis Avançats de Blanes (CEAB-CSIC), C. acc. Cala Sant Francesc 14 17300 Blanes, Girona, Spain Centre d'Estudis Avançats de Blanes Blanes Spain
| | - Tin-Yam Chan
- Institute of Marine Biology and Center of Excellence for the Oceans, National Taiwan Ocean University, Keelung 20224, Taiwan, ROC National Taiwan Ocean University Keelung Taiwan
| | - Appukuttannair Biju Kumar
- Department of Aquatic Biology and Fisheries, University of Kerala, Thiruvananthapuram 695581, Kerala, India Univeristy of Kerala Kerala India
| | - Paula C Rodríguez-Flores
- Centre d'Estudis Avançats de Blanes (CEAB-CSIC), C. acc. Cala Sant Francesc 14 17300 Blanes, Girona, Spain Centre d'Estudis Avançats de Blanes Blanes Spain
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14
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Rodríguez-Flores PC, Macpherson E, Machordom A. A new species of squat lobster of the genus Hendersonida (Crustacea, Decapoda, Munididae) from Papua New Guinea. Zookeys 2020; 935:25-35. [PMID: 32508500 PMCID: PMC7256070 DOI: 10.3897/zookeys.935.51931] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Accepted: 04/02/2020] [Indexed: 11/29/2022] Open
Abstract
Hendersonidaparvirostrissp. nov. is described from Papua New Guinea. The new species can be distinguished from the only other species of the genus, H.granulata (Henderson, 1885), by the fewer spines on the dorsal carapace surface, the shape of the rostrum and supraocular spines, the antennal peduncles, and the length of the walking legs. Pairwise genetic distances estimated using the 16S rRNA and COI DNA gene fragments indicated high levels of sequence divergence between the new species and H.granulata. Phylogenetic analyses, however, recovered both species as sister species, supporting monophyly of the genus.
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Affiliation(s)
- Paula C Rodríguez-Flores
- Centre d'Estudis Avançats de Blanes (CEAB-CSIC), C. acc. Cala Sant Francesc 14 17300 Blanes, Girona, Spain Centre d'Estudis Avançats de Blanes Girona Spain.,Museo Nacional de Ciencias Naturales (MNCN-CSIC), José Gutiérrez Abascal, 2, 28006 Madrid, Spain Museo Nacional de Ciencias Naturales Madrid Spain
| | - Enrique Macpherson
- Centre d'Estudis Avançats de Blanes (CEAB-CSIC), C. acc. Cala Sant Francesc 14 17300 Blanes, Girona, Spain Centre d'Estudis Avançats de Blanes Girona Spain
| | - Annie Machordom
- Museo Nacional de Ciencias Naturales (MNCN-CSIC), José Gutiérrez Abascal, 2, 28006 Madrid, Spain Museo Nacional de Ciencias Naturales Madrid Spain
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15
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Barbanti A, Torrado H, Macpherson E, Bargelloni L, Franch R, Carreras C, Pascual M. Helping decision making for reliable and cost-effective 2b-RAD sequencing and genotyping analyses in non-model species. Mol Ecol Resour 2020; 20. [PMID: 32061018 DOI: 10.1111/1755-0998.13144] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 02/04/2020] [Accepted: 02/10/2020] [Indexed: 12/18/2022]
Abstract
High-throughput sequencing has revolutionized population and conservation genetics. RAD sequencing methods, such as 2b-RAD, can be used on species lacking a reference genome. However, transferring protocols across taxa can potentially lead to poor results. We tested two different IIB enzymes (AlfI and CspCI) on two species with different genome sizes (the loggerhead turtle Caretta caretta and the sharpsnout seabream Diplodus puntazzo) to build a set of guidelines to improve 2b-RAD protocols on non-model organisms while optimising costs. Good results were obtained even with degraded samples, showing the value of 2b-RAD in studies with poor DNA quality. However, library quality was found to be a critical parameter on the number of reads and loci obtained for genotyping. Resampling analyses with different number of reads per individual showed a trade-off between number of loci and number of reads per sample. The resulting accumulation curves can be used as a tool to calculate the number of sequences per individual needed to reach a mean depth ≥20 reads to acquire good genotyping results. Finally, we demonstrated that selective-base ligation does not affect genomic differentiation between individuals, indicating that this technique can be used in species with large genome sizes to adjust the number of loci to the study scope, to reduce sequencing costs and to maintain suitable sequencing depth for a reliable genotyping without compromising the results. Here, we provide a set of guidelines to improve 2b-RAD protocols on non-model organisms with different genome sizes, helping decision-making for a reliable and cost-effective genotyping.
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Affiliation(s)
- Anna Barbanti
- Department of Genetics, Microbiology and Statistics and IRBio, University of Barcelona, Barcelona, Spain
| | - Hector Torrado
- Department of Genetics, Microbiology and Statistics and IRBio, University of Barcelona, Barcelona, Spain.,Center for Advanced Studies of Blanes (CEAB-CSIC), Blanes, Girona, Spain
| | - Enrique Macpherson
- Center for Advanced Studies of Blanes (CEAB-CSIC), Blanes, Girona, Spain
| | - Luca Bargelloni
- Department of Comparative Biomedicine and Food Science, University of Padova, Legnaro, Italy
| | - Rafaella Franch
- Department of Comparative Biomedicine and Food Science, University of Padova, Legnaro, Italy
| | - Carlos Carreras
- Department of Genetics, Microbiology and Statistics and IRBio, University of Barcelona, Barcelona, Spain
| | - Marta Pascual
- Department of Genetics, Microbiology and Statistics and IRBio, University of Barcelona, Barcelona, Spain
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16
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Rodríguez‐Flores PC, Buckley D, Macpherson E, Corbari L, Machordom A. Deep‐sea squat lobster biogeography (Munidopsidae:
Leiogalathea
) unveils Tethyan vicariance and evolutionary patterns shared by shallow‐water relatives. ZOOL SCR 2020. [DOI: 10.1111/zsc.12414] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Paula C. Rodríguez‐Flores
- Museo Nacional de Ciencias Naturales (MNCN‐CSIC) Madrid Spain
- Centre d'Estudis Avançats de Blanes (CEAB‐CSIC) Blanes Spain
| | - David Buckley
- Departamento de Biología (Genética) Facultad de Biología Universidad Autónoma de Madrid Madrid Spain
- Centro de Investigación en Biodiversidad y Cambio Global (CIBC‐UAM) Facultad de Biología Universidad Autónoma de Madrid Madrid Spain
| | | | - Laure Corbari
- Institut de Systématique Évolution Biodiversité (ISYEB, UMR 7205) Muséum national d'Histoire naturelle CNRS Sorbonne UniversitéEPHE Paris France
| | - Annie Machordom
- Museo Nacional de Ciencias Naturales (MNCN‐CSIC) Madrid Spain
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17
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Wu YL, Wang L, Sendur M, Kim YC, Zhu Z, Cheng Y, Li P, Qin Y, Macpherson E, Dennis P, Lu S. PACIFIC-5: Phase III study of durvalumab after either concurrent or sequential chemoradiotherapy (CRT) in patients with stage III NSCLC. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz438.021] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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18
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Schunter C, Pascual M, Raventos N, Garriga J, Garza JC, Bartumeus F, Macpherson E. A novel integrative approach elucidates fine-scale dispersal patchiness in marine populations. Sci Rep 2019; 9:10796. [PMID: 31346216 PMCID: PMC6658486 DOI: 10.1038/s41598-019-47200-w] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Accepted: 07/12/2019] [Indexed: 11/24/2022] Open
Abstract
Dispersal is one of the main determining factors of population structure. In the marine habitat, well-connected populations with large numbers of reproducing individuals are common but even so population structure can exist on a small-scale. Variation in dispersal patterns between populations or over time is often associated to geographic distance or changing oceanographic barriers. Consequently, detecting structure and variation in dispersal on a fine-scale within marine populations still remains a challenge. Here we propose and use a novel approach of combining a clustering model, early-life history trait information from fish otoliths, spatial coordinates and genetic markers to detect very fine-scale dispersal patterns. We collected 1573 individuals (946 adults and 627 juveniles) of the black-faced blenny across a small-scale (2 km) coastline as well as at a larger-scale area (<50 kms). A total of 178 single nucleotide polymorphism markers were used to evaluate relatedness patterns within this well-connected population. In our clustering models we categorized SHORT-range dispersers to be potential local recruits based on their high relatedness within and low relatedness towards other spatial clusters. Local retention and/or dispersal of this potential local recruitment varied across the 2 km coastline with higher frequency of SHORT-range dispersers towards the southwest of the area for adults. An inverse pattern was found for juveniles, showing an increase of SHORT-range dispersers towards the northeast. As we rule out selective movement and mortality from one year to the next, this pattern reveals a complex but not full genetic mixing, and variability in coastal circulation is most likely the main driver of this fine-scale chaotic genetic patchiness within this otherwise homogeneous population. When focusing on the patterns within one recruitment season, we found large differences in temperatures (from approx. 17 °C to 25 °C) as well as pelagic larval duration (PLD) for juveniles from the beginning of the season and the end of the season. We were able to detect fine-scale differences in LONG-range juvenile dispersers, representing distant migrants, depending on whether they were born at the beginning of the season with a longer PLD, or at the end of the reproductive season. The ability to detect such fine-scale dispersal patchiness will aid in our understanding of the underlying mechanisms of population structuring and chaotic patchiness in a wide range of species even with high potential dispersal abilities.
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Affiliation(s)
- C Schunter
- Swire Institute of Marine Science, The University of Hong Kong, Pokfulam, Hong Kong SAR.
| | - M Pascual
- Dept. Genètica, Microbiologia i Estadística - IRBio, Universitat Barcelona, Diagonal 643, 08028, Barcelona, Spain
| | - N Raventos
- Laboratorio de Analisis de Estructurad Biologicas de Crecimiento (CEAB-CSIC), Car. Acc. Cala St. Francesc 14, Blanes, 17300, Girona, Spain
| | - J Garriga
- Centre d'Estudis Avançats de Blanes (CEAB-CSIC), Car. Acc. Cala St. Francesc 14, Blanes, 17300, Girona, Spain
| | - J C Garza
- Southwest Fisheries Science Center, National Marine Fisheries Service and University of California, 110 McAllister Way, Santa Cruz, 95060, USA
| | - F Bartumeus
- Centre d'Estudis Avançats de Blanes (CEAB-CSIC), Car. Acc. Cala St. Francesc 14, Blanes, 17300, Girona, Spain.,Centre de Recerca Ecològica i Aplicacions Forestals (CREAF), E08193 Bellaterra (Cerdanyola del Vallès), Catalonia, Spain.,Catalan Institution for Research and Advanced Studies (ICREA), Passeig de Lluís Companys, 23, 08010, Barcelona, Spain
| | - E Macpherson
- Centre d'Estudis Avançats de Blanes (CEAB-CSIC), Car. Acc. Cala St. Francesc 14, Blanes, 17300, Girona, Spain
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19
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Rodríguez-Flores PC, Macpherson E, Machordom A. Revision of the squat lobsters of the genus Leiogalathea Baba, 1969 (Crustacea, Decapoda, Munidopsidae) with the description of 15 new species. Zootaxa 2019; 4560:zootaxa.4560.2.1. [PMID: 31716578 DOI: 10.11646/zootaxa.4560.2.1] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Indexed: 11/04/2022]
Abstract
The genus Leiogalathea Baba, 1969 currently contains only two benthic species both occurring on the continental shelves and slope: L. laevirostris (Balss, 1913), widely reported in the Indo-Pacific region, and L. agassizii (A. Milne Edwards, 1880), from both sides of the Central Atlantic. A certain degree of morphological variability linked to their geographic distributions was previously noticed, mostly in L. laevirostris. In the present study, we revise numerous specimens collected from the Atlantic, Indian and Pacific Oceans, analysing morphological and molecular characters (COI and 16S rRNA). We found 15 new species; all of them are distinguished from L. laevirostris and L. agassizii by subtle but constant morphological differences and show clear genetic separation. Furthermore, L. imperialis (Miyake Baba, 1967), previously synonymized with L. laevirostris, was found to be a valid species. All species are described and illustrated. Species of the genus Leiogalathea are morphologically distinguishable on the basis of the spinulation of the carapace, the shape and the armature of the rostrum, the shape of the propodi of the walking legs, and the pattern of the setae covering on rostrum, carapace and chelae. Some species are barely discernible on the basis of these characters but are highly divergent genetically.
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Affiliation(s)
- Paula C Rodríguez-Flores
- Museo Nacional de Ciencias Naturales (MNCN-CSIC), José Gutiérrez Abascal, 2, 28006 Madrid, Spain. Centre d'Estudis Avançats de Blanes (CEAB-CSIC), C. d'Accés Cala Sant Francesc, 14, 17300 Blanes, Spain..
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20
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Rodríguez-Flores PC, Macpherson E, Buckley D, Machordom A. High morphological similarity coupled with high genetic differentiation in new sympatric species of coral-reef squat lobsters (Crustacea: Decapoda: Galatheidae). Zool J Linn Soc 2018. [DOI: 10.1093/zoolinnean/zly074] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Paula C Rodríguez-Flores
- Museo Nacional de Ciencias Naturales (MNCN-CSIC), José Gutiérrez Abascal, Madrid, Spain
- Centre d’Estudis Avançats de Blanes (CEAB-CSIC), C. d’Accés Cala Sant Francesc, Blanes, Spain
| | - Enrique Macpherson
- Centre d’Estudis Avançats de Blanes (CEAB-CSIC), C. d’Accés Cala Sant Francesc, Blanes, Spain
| | - David Buckley
- Museo Nacional de Ciencias Naturales (MNCN-CSIC), José Gutiérrez Abascal, Madrid, Spain
- Centre d’Estudis Avançats de Blanes (CEAB-CSIC), C. d’Accés Cala Sant Francesc, Blanes, Spain
| | - Annie Machordom
- Museo Nacional de Ciencias Naturales (MNCN-CSIC), José Gutiérrez Abascal, Madrid, Spain
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21
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Boada J, Pagès JF, Gera A, Macpherson E, Santana Y, Romero J, Alcoverro T. The richness of small pockets: Decapod species peak in small seagrass patches where fish predators are absent. Mar Environ Res 2018; 142:1-6. [PMID: 30253917 DOI: 10.1016/j.marenvres.2018.09.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Revised: 09/08/2018] [Accepted: 09/09/2018] [Indexed: 06/08/2023]
Abstract
Patchy landscapes behave differently from continuous ones. Patch size can influence species behaviour, movement, feeding and predation rates, with flow-on consequences for the diversity of species that inhabit these patches. To understand the importance of patchiness on regional species pools, we measured decapod richness and abundance in several seagrass patches with contrasting sizes. Additionally, we evaluated potential drivers of patch-specific species distribution including resource abundance, predator habitat use and the structural complexity of patches. Our results showed a non-random distribution of decapod species: small patches were clear hotspots of diversity and abundance, particularly of larger-bodied epifaunal decapods. Interestingly, these hotspots were characterized by lower nutrient resources, lower canopy height, but also lower predator use. Small fish invertivores such as Coris julis and several species of Symphodus were mostly restricted to large patches. These resident predators may be critical in clumping predation in large patches with consequences for how biodiversity of their prey is distributed across the seascape. Our results highlight the idea that a habitat mosaic with both large and small seagrass patches would potentially bolster biodiversity because preys and predators may seek refuge in patches of different sizes.
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Affiliation(s)
- Jordi Boada
- Centre d'Estudis Avançats de Blanes, CEAB-CSIC, C/ Acc. Cala St. Francesc 14, 17300, Blanes, Girona, Spain.
| | - Jordi F Pagès
- Centre d'Estudis Avançats de Blanes, CEAB-CSIC, C/ Acc. Cala St. Francesc 14, 17300, Blanes, Girona, Spain; School of Ocean Sciences, Bangor University, Menai Bridge, Anglesey, United Kingdom
| | - Alessandro Gera
- Centre d'Estudis Avançats de Blanes, CEAB-CSIC, C/ Acc. Cala St. Francesc 14, 17300, Blanes, Girona, Spain
| | - Enrique Macpherson
- Centre d'Estudis Avançats de Blanes, CEAB-CSIC, C/ Acc. Cala St. Francesc 14, 17300, Blanes, Girona, Spain
| | - Yaiza Santana
- Centre d'Estudis Avançats de Blanes, CEAB-CSIC, C/ Acc. Cala St. Francesc 14, 17300, Blanes, Girona, Spain
| | - Javier Romero
- Departamento de Ecología, Facultad de Biología, Universidad de Barcelona, Av. Diagonal 645, 08028, Barcelona, Spain
| | - Teresa Alcoverro
- Centre d'Estudis Avançats de Blanes, CEAB-CSIC, C/ Acc. Cala St. Francesc 14, 17300, Blanes, Girona, Spain; Nature Conservation Foundation, 3076/5, 4th Cross, Gokulam Park, 570 002, Mysore, Karnataka, India
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22
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RodrÍguez-Flores PC, Macpherson E, Machordom A. Three new species of squat lobsters of the genus Munidopsis Whiteaves, 1874, from Guadeloupe Island, Caribbean Sea (Crustacea, Decapoda, Munidopsidae). Zootaxa 2018; 4422:569-580. [PMID: 30313485 DOI: 10.11646/zootaxa.4422.4.7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Indexed: 11/04/2022]
Abstract
The genus Munidopsis is one of the most diverse genera within squat lobsters. Here, three new species of Munidopsis, M. cornuata n. sp., M. senticosa n. sp., and M. turgida n. sp., from <500 m off Guadeloupe Island (Caribbean Sea), are fully described and illustrated. Among the Atlantic species of the genus, M. cornuata n. sp. belongs to the group of species having the dorsal surface of the carapace with spines and is most similar to M. robusta (A. Milne-Edwards, 1880), from the Gulf of Mexico and Caribbean Sea. Munidopsis senticosa n. sp. resembles M. barbarae (Boone, 1927) from the Bahamas and the Gulf of Mexico and M. penescabra Pequegnat Williams 1995, from off Georgia and Gulf of Mexico; the three species belong to the group having the carapace covered with sharp spines. Finally, M. turgida n. sp. is characterized by having the dorsal surface of the carapace, abdomen and pereiopods covered by granules; and resembles M. granulens Mayo, 1972, from NW Caribbean Sea. Apart from the morphological evidence, the analysis of mitochondrial genes (COI and 16S) supports establishing these new species, showing very high genetic divergences compared to their congeners (from 14.5 to 17% for COI, and 7.7 to 12.8% for 16S data).
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Affiliation(s)
- Paula C RodrÍguez-Flores
- Museo Nacional de Ciencias Naturales (MNCN-CSIC), José Gutiérrez Abascal, 2, 28006 Madrid, Spain..
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Rodriguez-Flores PC, Machordom A, Macpherson E. Three new species of squat lobsters of the genus <i>Fennerogalathea</i> Baba, 1988 (Decapoda: Galatheidae) from the Pacific Ocean. Zootaxa 2017; 4276:46-60. [PMID: 28610215 DOI: 10.11646/zootaxa.4276.1.2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Indexed: 11/04/2022]
Abstract
The genus Fennerogalathea Baba, 1988 was known to contain two species: F. chacei Baba, 1988, the type species, from the Philippines, Taiwan and Indonesia and F. chirostyloides Tirmizi & Javed, 1993 from the Bay of Bengal. In the present study, three new species of the genus are described and illustrated: F. chani n. sp. from Papua New Guinea, F. cultrata n. sp. from New Caledonia and Vanuatu and F. ensifera n. sp. from Fiji. The new species are morphologically distinguishable on the basis of the shape and spination of the rostrum and the presence/absence of a small spine on the frontal margin of the carapace. The species also show clear genetic differences (COI and 16S rDNA) among them.
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Affiliation(s)
- Paula C Rodriguez-Flores
- Museo Nacional de Ciencias Naturales (MNCN-CSIC), José Gutiérrez Abascal 2, 28006 Madrid, Spain..
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Pascual M, Rives B, Schunter C, Macpherson E. Impact of life history traits on gene flow: A multispecies systematic review across oceanographic barriers in the Mediterranean Sea. PLoS One 2017; 12:e0176419. [PMID: 28489878 PMCID: PMC5425013 DOI: 10.1371/journal.pone.0176419] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Accepted: 04/10/2017] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Marine species can demonstrate strong genetic differentiation and population structure despite the hypothesis of open seas and high connectivity. Some suggested drivers causing the genetic breaks are oceanographic barriers and the species' biology. We assessed the relevance of seven major oceanographic fronts on species connectivity while considering their dispersal capacity and life strategy. METHODS We systematically reviewed the scientific articles reporting population genetic differentiation along the Mediterranean Sea and across the Atlantic-Mediterranean transition. We retained those considering at least one sampling locality at each side of an oceanographic front, and at least two localities with no-front between them to correctly assess the effect of the front. To estimate the impact of life history characteristics affecting connectivity we considered the planktonic larval duration (PLD) and adult life strategy. RESULTS Oceanographic barriers in the Mediterranean Sea seem to reduce gene flow globally; however, this effect is not homogeneous considering the life history traits of the species. The effect of the oceanographic fronts reduces gene flow in highly mobile species with PLD larger than 2-4 weeks. Benthic sessile species and/or with short PLD (< 2 weeks) have more significant genetic breaks between localities than species with higher motility; however, genetic differentiation occurs independently of the presence of a front. CONCLUSION Genetic connectivity is important for populations to recover from anthropogenic or natural impacts. We show that species with low mobility, mostly habitat-formers, have high genetic differentiation but low gene flow reduction mediated by the front, therefore, considering the importance of these species, we emphasize the vulnerability of the Mediterranean ecosystems and the necessity of protection strategies based on the whole ecosystem.
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Affiliation(s)
- Marta Pascual
- Dept Genetics, Microbiology and Statistics/IrBio, Universitat de Barcelona, Diagonal 643, Barcelona, Spain
- * E-mail:
| | - Borja Rives
- Dept Genetics, Microbiology and Statistics/IrBio, Universitat de Barcelona, Diagonal 643, Barcelona, Spain
| | - Celia Schunter
- KAUST Environmental Epigenetic Program (KEEP), Division of Biological and Environmental Sciences & Engineering and Division of Applied Mathematics and Computer Sciences, King Abdullah University of Science and Technology, Thuwal, Kingdom of Saudi Arabia
| | - Enrique Macpherson
- Centre d’Estudis Avançats de Blanes (CEAB-CSIC), Car. Acc. Cala St. Francesc 14, Blanes, Girona, Spain
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Rico C, Cuesta JA, Drake P, Macpherson E, Bernatchez L, Marie AD. Null alleles are ubiquitous at microsatellite loci in the Wedge Clam ( Donax trunculus). PeerJ 2017; 5:e3188. [PMID: 28439464 PMCID: PMC5398275 DOI: 10.7717/peerj.3188] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2016] [Accepted: 03/15/2017] [Indexed: 12/17/2022] Open
Abstract
Recent studies have reported an unusually high frequency of nonamplifying alleles at microsatellite loci in bivalves. Null alleles have been associated with heterozygous deficits in many studies. While several studies have tested for its presence using different analytical tools, few have empirically tested for its consequences in estimating population structure and differentiation. We characterised 16 newly developed microsatellite loci and show that null alleles are ubiquitous in the wedge clam, Donax trunculus. We carried out several tests to demonstrate that the large heterozygous deficits observed in the newly characterised loci were most likely due to null alleles. We tested the robustness of microsatellite genotyping for population assignment by showing that well-recognised biogeographic regions of the south Atlantic and south Mediterranean coast of Spain harbour genetically different populations.
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Affiliation(s)
- Ciro Rico
- School of Marine Studies, Molecular Analytics Laboratory (MOANA), Faculty of Science Technology and Environment, The University of the South Pacific, Suva, Fiji.,Estación Biológica de Doñana, (EBD, CSIC), Sevilla, Spain
| | - Jose Antonio Cuesta
- Instituto de Ciencias Marinas de Andalucía (ICMAN, CSIC), Puerto Real (Cádiz), Spain
| | - Pilar Drake
- Instituto de Ciencias Marinas de Andalucía (ICMAN, CSIC), Puerto Real (Cádiz), Spain
| | | | - Louis Bernatchez
- Institut de Biologie Intégrative et des Systèmes (IBIS), Département de Biologie, Pavillon Charles-Eugène-Marchand, Laval University, Quebec, Canada
| | - Amandine D Marie
- School of Marine Studies, Molecular Analytics Laboratory (MOANA), Faculty of Science Technology and Environment, The University of the South Pacific, Suva, Fiji
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Palero F, Robainas-Barcia A, Corbari L, Macpherson E. Phylogeny and evolution of shallow-water squat lobsters (Decapoda, Galatheoidea) from the Indo-Pacific. ZOOL SCR 2016. [DOI: 10.1111/zsc.12230] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ferran Palero
- INRA, University of Nice Sophia Antipolis; CNRS, UMR 1355-7254, Institut Sophia Agrobiotech; Sophia Antipolis 06900 France
- Centre d'Estudis Avançats de Blanes (CEAB-CSIC); Carrer d'Accés a la Cala Sant Francesc 14 17300 Blanes Spain
| | - Aymee Robainas-Barcia
- Departament de Genètica; Facultat de Biologia; Universitat de Barcelona; Av. Diagonal 645 08028 Barcelona Spain
| | - Laure Corbari
- UMR 7205; Institut de Systématique; Evolution et Biodiversité; département Systématique et Evolution; Muséum national d'Histoire naturelle; 55 rue Buffon CP51 75005 Paris France
| | - Enrique Macpherson
- Centre d'Estudis Avançats de Blanes (CEAB-CSIC); Carrer d'Accés a la Cala Sant Francesc 14 17300 Blanes Spain
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Pascual M, Palero F, García-Merchán VH, Macpherson E, Robainas-Barcia A, Mestres F, Roda T, Abelló P. Temporal and spatial genetic differentiation in the crab Liocarcinus depurator across the Atlantic-Mediterranean transition. Sci Rep 2016; 6:29892. [PMID: 27431989 PMCID: PMC4949458 DOI: 10.1038/srep29892] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Accepted: 06/23/2016] [Indexed: 11/09/2022] Open
Abstract
Spatial genetic studies often require sampling broadly separated areas, difficult to access simultaneously. Although comparing localities surveyed at different time periods might result in spurious genetic differentiation, there is a general believe on the stability of genetic structure through time, particularly if sampled localities are isolated or very distant. By analysing spatial and temporal genetic differentiation of the portunid crab Liocarcinus depurator we assessed the contribution of historical and contemporary processes on population connectivity patterns across three main oceanographic discontinuities along the Atlantic-Mediterranean transition: Gibraltar Strait, Almeria-Oran Front and Ibiza Channel. A partial fragment of the cytochrome oxidase I gene was sequenced in 366 individuals collected from localities at both sides of each discontinuity during three time periods. Although localities showed genetic fluctuations through time, a significant gradient was detected along the coast for all sampling periods. Significant inter-annual differences identified within the Alicante area, north of the Almeria-Oran Front, were associated with shifts in the relative contribution of Atlantic and Mediterranean water masses. The persistence of a clinal pattern in the Atlantic-Mediterranean transition area together with local fluctuations suggests a complex balance of dispersal and selection.
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Affiliation(s)
- Marta Pascual
- Dept. Genètica, Microbiologia i Estadística and IRBio, University of Barcelona, Av. Diagonal 643, 08028 Barcelona, Spain
| | - Ferran Palero
- Centre d'Estudis Avançats de Blanes (CEAB-CSIC), Carrer d'Accés a la Cala Sant Francesc 14, 17300 Blanes, Spain
| | | | - Enrique Macpherson
- Centre d'Estudis Avançats de Blanes (CEAB-CSIC), Carrer d'Accés a la Cala Sant Francesc 14, 17300 Blanes, Spain
| | - Aymée Robainas-Barcia
- Dept. Genètica, Microbiologia i Estadística and IRBio, University of Barcelona, Av. Diagonal 643, 08028 Barcelona, Spain
| | - Francesc Mestres
- Dept. Genètica, Microbiologia i Estadística and IRBio, University of Barcelona, Av. Diagonal 643, 08028 Barcelona, Spain
| | - Tania Roda
- Dept. Genètica, Microbiologia i Estadística and IRBio, University of Barcelona, Av. Diagonal 643, 08028 Barcelona, Spain
| | - Pere Abelló
- Institut de Ciències del Mar (ICM-CSIC), Passeig Marítim de la Barceloneta 37-49, 08003 Barcelona, Catalonia, Spain
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Macpherson E, Beuck L, Freiwald A. Some species of Munidopsis from the Gulf of Mexico, Florida Straits and Caribbean Sea (Decapoda: Munidopsidae), with the description of two new species. Zootaxa 2016; 4137:405-16. [PMID: 27470732 DOI: 10.11646/zootaxa.4137.3.7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2016] [Indexed: 11/04/2022]
Abstract
During two cruises to the Gulf of Mexico and Caribbean Sea, some specimens of squat lobsters belonging to the genus Munidopsis Whiteaves, 1874 (family Munidopsidae Ortmann, 1898) were collected. The present collection comprises five species, where two are considered as new species: M. karukera, closely related to M. ariadne Macpherson, 2011, from the Mediterranean Sea; and M. tuerkayi, which resembles M. kareenae Ahyong, 2013, from New Zealand. The specimens were caught at six stations between 522 and 1162 m; some were associated with live cold-water corals, such as Lophelia pertusa (Linnaeus, 1758), Enallopsammia profunda (Pourtalès, 1867) and Candidella imbricata (Johnson, 1862).
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Affiliation(s)
- Enrique Macpherson
- Centre d'Estudis Avançats de Blanes (CEAB-CSIC) C. acc. Cala San Fracesc 14, 17300 Blanes, Girona, Spain.;
| | - Lydia Beuck
- Senckenberg am Meer, Marine Research Department, Südstrand 40, D-26382 Wilhelmshaven, Germany.;
| | - Andrè Freiwald
- Senckenberg am Meer, Marine Research Department, Südstrand 40, D-26382 Wilhelmshaven, Germany.;
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Galil B, Boero F, Fraschetti S, Piraino S, Campbell M, Hewitt C, Carlton J, Cook E, Jelmert A, Macpherson E, Marchini A, Occhipinti-Ambrogi A, Mckenzie C, Minchin D, Ojaveer H, Olenin S, Ruiz G. The Enlargement of the Suez Canal and Introduction of Non-Indigenous Species to the Mediterranean Sea. ACTA ACUST UNITED AC 2015. [DOI: 10.1002/lob.10036] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Galil BS, Boero F, Campbell ML, Carlton JT, Cook E, Fraschetti S, Gollasch S, Hewitt CL, Jelmert A, Macpherson E, Marchini A, McKenzie C, Minchin D, Occhipinti-Ambrogi A, Ojaveer H, Olenin S, Piraino S, Ruiz GM. ‘Double trouble’: the expansion of the Suez Canal and marine bioinvasions in the Mediterranean Sea. Biol Invasions 2014. [DOI: 10.1007/s10530-014-0778-y] [Citation(s) in RCA: 129] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Cabezas P, Macpherson E. A new species of Paramunida Baba, 1988 from the Central Pacific Ocean and a new genus to accommodate P. granulata (Henderson, 1885). Zookeys 2014; 425:15-32. [PMID: 25147446 PMCID: PMC4137303 DOI: 10.3897/zookeys.425.7882] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2014] [Accepted: 06/26/2014] [Indexed: 11/29/2022] Open
Abstract
The genus Paramunida belongs to the most diverse family of galatheoids and it is commonly reported from the continental slope across the Indian and Pacific Oceans. Examination of material collected by the NOAA RV Townsend Cromwell Cruise near Christmas (Kiritimati) Island, Kiribati, revealed the existence of a new species of Paramunida (P. haigae), which represents the fourth record of the genus for the Central Pacific. Furthermore, recent efforts to unravel phylogenetic relationships and diversification patterns in Paramunida revealed P. granulata (Henderson, 1885) to be the most basally diverging taxon within the genus. This species is clearly distinguished from other species of Paramunida by the spinulation of the carapace and the length of the distomesial spine of the second antennal peduncle article, which in combination with a high level of genetic divergence suggest that this species represents a separate monotypic lineage. A new genus, Hendersonida gen. n., is proposed to accommodate this species based on morphological and molecular evidence. An updated dichotomous identification key for all species of Paramunida is presented.
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Affiliation(s)
- Patricia Cabezas
- Smithsonian Institution, National Museum of Natural History, Department of Invertebrate Zoology, Museum Support Center, MRC 534, 4210 Silver Hill Road. Suitland, MD 20746
| | - Enrique Macpherson
- Centre d’Estudis Avançats de Blanes (CEAB-CSIC), C. d’Accés Cala Sant Francesc 14, 17300 Blanes, Spain
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Abstract
Connectivity is crucial for the persistence and resilience of marine species, the establishment of networks of marine protected areas and the delineation of fishery management units. In the marine environment, understanding connectivity is still a major challenge, due to the technical difficulties of tracking larvae. Recently, parentage analysis has provided a means to address this question effectively. To be effective, this method requires limited adult movement and extensive sampling of parents, which is often not possible for marine species. An alternative approach that is less sensitive to constraints in parental movement and sampling could be the reconstruction of sibships. Here, we directly measure connectivity and larval dispersal in a temperate marine ecosystem through both analytical approaches. We use data from 178 single nucleotide polymorphism markers to perform parentage and sibship reconstruction of the black-faced blenny (Tripterygion delaisi) from an open coastline in the Mediterranean Sea. Parentage analysis revealed a decrease in dispersal success in the focal area over 1 km distance and approximately 6.5% of the juveniles were identified as self-recruits. Sibship reconstruction analysis found that, in general, full siblings did not recruit together to the same location, and that the largest distance between recruitment locations was much higher (11.5 km) than found for parent-offspring pairs (1.2 km). Direct measurements of dispersal are essential to understanding connectivity patterns in different marine habitats, and show the degree of self-replenishment and sustainability of populations of marine organisms. We demonstrate that sibship reconstruction allows direct measurements of dispersal and family structure in marine species while being more easily applied in those species for which the collection of the parental population is difficult or unfeasible.
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Affiliation(s)
- C Schunter
- Centre d'Estudis Avançats de Blanes (CEAB-CSIC), , Car. Acc. Cala St. Francesc 14, Blanes, Girona 17300, Spain, Department of Genetics and IRBio, Universitat de Barcelona, , Diagonal 643, Barcelona 08028, Spain, Southwest Fisheries Science Center, National Marine Fisheries Service and University of California, , 110 Shaffer Road, Santa Cruz 95060, USA
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Guidetti P, Baiata P, Ballesteros E, Di Franco A, Hereu B, Macpherson E, Micheli F, Pais A, Panzalis P, Rosenberg AA, Zabala M, Sala E. Large-scale assessment of Mediterranean marine protected areas effects on fish assemblages. PLoS One 2014; 9:e91841. [PMID: 24740479 PMCID: PMC3989174 DOI: 10.1371/journal.pone.0091841] [Citation(s) in RCA: 122] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2013] [Accepted: 02/16/2014] [Indexed: 11/18/2022] Open
Abstract
Marine protected areas (MPAs) were acknowledged globally as effective tools to mitigate the threats to oceans caused by fishing. Several studies assessed the effectiveness of individual MPAs in protecting fish assemblages, but regional assessments of multiple MPAs are scarce. Moreover, empirical evidence on the role of MPAs in contrasting the propagation of non-indigenous-species (NIS) and thermophilic species (ThS) is missing. We simultaneously investigated here the role of MPAs in reversing the effects of overfishing and in limiting the spread of NIS and ThS. The Mediterranean Sea was selected as study area as it is a region where 1) MPAs are numerous, 2) fishing has affected species and ecosystems, and 3) the arrival of NIS and the northward expansion of ThS took place. Fish surveys were done in well-enforced no-take MPAs (HP), partially-protected MPAs (IP) and fished areas (F) at 30 locations across the Mediterranean. Significantly higher fish biomass was found in HP compared to IP MPAs and F. Along a recovery trajectory from F to HP MPAs, IP were similar to F, showing that just well enforced MPAs triggers an effective recovery. Within HP MPAs, trophic structure of fish assemblages resembled a top-heavy biomass pyramid. Although the functional structure of fish assemblages was consistent among HP MPAs, species driving the recovery in HP MPAs differed among locations: this suggests that the recovery trajectories in HP MPAs are likely to be functionally similar (i.e., represented by predictable changes in trophic groups, especially fish predators), but the specific composition of the resulting assemblages may depend on local conditions. Our study did not show any effect of MPAs on NIS and ThS. These results may help provide more robust expectations, at proper regional scale, about the effects of new MPAs that may be established in the Mediterranean Sea and other ecoregions worldwide.
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Affiliation(s)
- Paolo Guidetti
- Université de Nice Sophia-Antipolis, Faculté des Sciences, EA 4228 ECOMERS, Nice, France
- CoNISMa, Rome, Italy
- * E-mail:
| | - Pasquale Baiata
- Université de Nice Sophia-Antipolis, Faculté des Sciences, EA 4228 ECOMERS, Nice, France
| | - Enric Ballesteros
- Centre d'Estudis Avançats de Blanes, CEAB-CSIC, Accés Cala Sant Francesc, Blanes, Spain
| | - Antonio Di Franco
- Université de Nice Sophia-Antipolis, Faculté des Sciences, EA 4228 ECOMERS, Nice, France
- CoNISMa, Rome, Italy
| | - Bernat Hereu
- Department of Ecology, University of Barcelona, Barcelona, Spain
| | - Enrique Macpherson
- Centre d'Estudis Avançats de Blanes, CEAB-CSIC, Accés Cala Sant Francesc, Blanes, Spain
| | - Fiorenza Micheli
- Hopkins Marine Station, Stanford University, Pacific Grove, California, United States of America
| | - Antonio Pais
- Laboratorio di Acquacoltura e Gestione delle Risorse Acquatiche, Sezione di Scienze Zootecniche, Dipartimento di Agraria, Università di Sassari, Italy
| | | | - Andrew A. Rosenberg
- Union of Concerned Scientists, Cambridge, Massachusetts, United States of America
| | - Mikel Zabala
- Department of Ecology, University of Barcelona, Barcelona, Spain
| | - Enric Sala
- Centre d'Estudis Avançats de Blanes, CEAB-CSIC, Accés Cala Sant Francesc, Blanes, Spain
- National Geographic Society, Washington, D. C., United States of America
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Schunter C, Vollmer SV, Macpherson E, Pascual M. Transcriptome analyses and differential gene expression in a non-model fish species with alternative mating tactics. BMC Genomics 2014; 15:167. [PMID: 24581002 PMCID: PMC4029132 DOI: 10.1186/1471-2164-15-167] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2013] [Accepted: 02/20/2014] [Indexed: 12/22/2022] Open
Abstract
Background Social dominance is important for the reproductive success of males in many species. In the black-faced blenny (Tripterygion delaisi) during the reproductive season, some males change color and invest in nest making and defending a territory, whereas others do not change color and ‘sneak’ reproductions when females lay their eggs. Using RNAseq, we profiled differential gene expression between the brains of territorial males, sneaker males, and females to study the molecular signatures of male dimorphism. Results We found that more genes were differentially expressed between the two male phenotypes than between males and females, suggesting that during the reproductive period phenotypic plasticity is a more important factor in differential gene expression than sexual dimorphism. The territorial male overexpresses genes related to synaptic plasticity and the sneaker male overexpresses genes involved in differentiation and development. Conclusions Previously suggested candidate genes for social dominance in the context of alternative mating strategies seem to be predominantly species-specific. We present a list of novel genes which are differentially expressed in Tripterygion delaisi. This is the first genome-wide study for a molecular non-model species in the context of alternative mating strategies and provides essential information for further studies investigating the molecular basis of social dominance.
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Affiliation(s)
- Celia Schunter
- Centre d'Estudis Avançats de Blanes (CEAB-CSIC), Car, Acc, Cala St, Francesc 14 Blanes 17300 Girona, Spain.
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Macpherson E, Amon D, Clark PF. A new species of Munidopsis from a seamount of the Southwest Indian Ocean Ridge (Decapoda: Munidopsidae). Zootaxa 2014; 3753:291-6. [PMID: 24872299 DOI: 10.11646/zootaxa.3753.3.8] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2014] [Indexed: 11/04/2022]
Abstract
Wood and whale bone colonisation experiments were undertaken on the Southwest Indian Ocean Ridge, 18 November 2009. Later, 14 December 2011, squat lobsters were recovered from the submerged wood and assigned to Munidopsis sp. Further study indicated that the specimens belonged to the group of species having a rostrum without lateral spines, presence of two strong epigastric spines, unarmed abdominal segments, one dorsal eye-spine, and with the second pereiopod not reaching the end of the first. They were similar to M. hemingi Alcock & Anderson, 1899 but differed in that the epigastric spines are well developed (vs. tubercles in M. hemingi), the lateral margins of the carapace are straight (vs. more convex in M. hemingi), the eye has a tubercular process mediodorsally (vs. a papilliform spinule at mesial angle) and the epipods on the fourth pereiopod were absent (vs. present in M. hemingi). Consequently the Munidopsis specimens from the Southwest Indian Ocean Ridge were considered to be an undescribed species.
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Affiliation(s)
- Enrique Macpherson
- Centro de Estudios Avanzados de Blanes (CEAB-CSIC) C. acc. Cala San Fracesc 14, 17300 Blanes, Girona, Spain.;
| | - Diva Amon
- Aquatic Invertebrates Division, Department of Life Sciences, The Natural History Museum, Cromwell Road, London SW7 5BD, England.;
| | - Paul F Clark
- Aquatic Invertebrates Division, Department of Life Sciences, The Natural History Museum, Cromwell Road, London SW7 5BD, England.;
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Schunter C, Garza JC, Macpherson E, Pascual M. SNP development from RNA-seq data in a nonmodel fish: how many individuals are needed for accurate allele frequency prediction? Mol Ecol Resour 2013; 14:157-65. [PMID: 23992151 DOI: 10.1111/1755-0998.12155] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2013] [Revised: 07/13/2013] [Accepted: 07/18/2013] [Indexed: 01/10/2023]
Abstract
Single nucleotide polymorphisms (SNPs) are rapidly becoming the marker of choice in population genetics due to a variety of advantages relative to other markers, including higher genomic density, data quality, reproducibility and genotyping efficiency, as well as ease of portability between laboratories. Advances in sequencing technology and methodologies to reduce genomic representation have made the isolation of SNPs feasible for nonmodel organisms. RNA-seq is one such technique for the discovery of SNPs and development of markers for large-scale genotyping. Here, we report the development of 192 validated SNP markers for parentage analysis in Tripterygion delaisi (the black-faced blenny), a small rocky-shore fish from the Mediterranean Sea. RNA-seq data for 15 individual samples were used for SNP discovery by applying a series of selection criteria. Genotypes were then collected from 1599 individuals from the same population with the resulting loci. Differences in heterozygosity and allele frequencies were found between the two data sets. Heterozygosity was lower, on average, in the population sample, and the mean difference between the frequencies of particular alleles in the two data sets was 0.135 ± 0.100. We used bootstrap resampling of the sequence data to predict appropriate sample sizes for SNP discovery. As cDNA library production is time-consuming and expensive, we suggest that using seven individuals for RNA sequencing reduces the probability of discarding highly informative SNP loci, due to lack of observed polymorphism, whereas use of more than 12 samples does not considerably improve prediction of true allele frequencies.
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Affiliation(s)
- C Schunter
- Centre d'Estudis Avançats de Blanes (CEAB-CSIC), Car. Acc. Cala St. Francesc 14, Blanes, 17300, Spain; Department of Genètica, Universitat Barcelona, Diagonal 643, Barcelona, 08028, Spain
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Abelló P, Ai W, Altmann C, Bernardi G, Bonato O, Burchhardt KM, Chen X, Chen Z, Cížková D, Clouet C, Cubeta MA, Garcia-Merchan VH, Gauthier N, Gibson S, Halačka K, Hamdi F, Hankeln T, Hochkirch A, Hrbek T, Jackson AM, Lin C, Lin SM, Macpherson E, Macrander J, Marešová E, Mendel J, Nowak M, Orti G, Palero F, Papoušek I, Pascual M, Schmitt T, Semmens BX, Streito JC, Tian EW, Tseng SP, Veith M, Vetešník L, Wang HY, Weyer J, Willis S, Yu H, Zhou Z. Permanent genetic resources added to molecular ecology resources database 1 April 2012 - 31 May 2012. Mol Ecol Resour 2012; 12:972-4. [PMID: 22898144 DOI: 10.1111/j.1755-0998.2012.03173.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
This article documents the addition of 123 microsatellite marker loci to the Molecular Ecology Resources Database. Loci were developed for the following species: Brenthis ino, Cichla orinocensis, Cichla temensis, Epinephelus striatus, Gobio gobio, Liocarcinus depurator, Macrolophus pygmaeus, Monilinia vaccinii-corymbosi, Pelochelys cantorii, Philotrypesis josephi, Romanogobio vladykovi, Takydromus luyeanus and Takydromus viridipunctatus. These loci were cross-tested on the following species: Cichla intermedia, Cichla ocellaris, Cichla pinima, Epinephelus acanthistius, Gobio carpathicus, Gobio obtusirostris, Gobio sp. 1, Gobio volgensis, Macrolophus costalis, Macrolophus melanotoma, Macrolophus pygmaeus, Romanogobio albipinnatus, Romanogobio banaticus, Romanogobio belingi, Romanogobio kesslerii, Romanogobio parvus, Romanogobio pentatrichus, Romanogobio uranoscopus, Takydromus formosanus, Takydromus hsuehshanesis and Takydromus stejnegeri.
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Affiliation(s)
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- Molecular Ecology Resources Editorial Office, 6270 University Blvd, Vancouver, BC, V6T 1Z4, Canada
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Cabezas P, Sanmartín I, Paulay G, Macpherson E, Machordom A. Deep under the sea: unraveling the evolutionary history of the deep-sea squat lobster Paramunida (Decapoda, Munididae). Evolution 2012; 66:1878-96. [PMID: 22671553 DOI: 10.1111/j.1558-5646.2011.01560.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The diversification of Indo-Pacific marine fauna has long captivated the attention of evolutionary biologists. Previous studies have mainly focused on coral reef or shallow water-associated taxa. Here, we present the first attempt to reconstruct the evolutionary history--phylogeny, diversification, and biogeography--of a deep-water lineage. We sequenced the molecular markers 16S, COI, ND1, 18S, and 28S for nearly 80% of the nominal species of the squat lobster genus Paramunida. Analyses of the molecular phylogeny revealed an accelerated diversification in the late Oligocene-Miocene followed by a slowdown in the rate of lineage accumulation over time. A parametric biogeographical reconstruction showed the importance of the southwest Pacific area, specifically the island arc of Fiji, Tonga, Vanuatu, Wallis, and Futuna, for diversification of squat lobsters, probably associated with the global warming, high tectonic activity, and changes in oceanic currents that took place in this region during the Oligocene-Miocene period. These results add strong evidence to the hypothesis that the Neogene was a period of major diversification for marine organisms in both shallow and deep waters.
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Affiliation(s)
- Patricia Cabezas
- Museo Nacional de Ciencias Naturales, MNCN-CSIC, José Gutiérrez Abascal 2, 28006 Madrid, Spain.
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Sala E, Ballesteros E, Dendrinos P, Di Franco A, Ferretti F, Foley D, Fraschetti S, Friedlander A, Garrabou J, Güçlüsoy H, Guidetti P, Halpern BS, Hereu B, Karamanlidis AA, Kizilkaya Z, Macpherson E, Mangialajo L, Mariani S, Micheli F, Pais A, Riser K, Rosenberg AA, Sales M, Selkoe KA, Starr R, Tomas F, Zabala M. The structure of Mediterranean rocky reef ecosystems across environmental and human gradients, and conservation implications. PLoS One 2012; 7:e32742. [PMID: 22393445 PMCID: PMC3290621 DOI: 10.1371/journal.pone.0032742] [Citation(s) in RCA: 119] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2011] [Accepted: 01/30/2012] [Indexed: 11/18/2022] Open
Abstract
Historical exploitation of the Mediterranean Sea and the absence of rigorous baselines makes it difficult to evaluate the current health of the marine ecosystems and the efficacy of conservation actions at the ecosystem level. Here we establish the first current baseline and gradient of ecosystem structure of nearshore rocky reefs at the Mediterranean scale. We conducted underwater surveys in 14 marine protected areas and 18 open access sites across the Mediterranean, and across a 31-fold range of fish biomass (from 3.8 to 118 g m(-2)). Our data showed remarkable variation in the structure of rocky reef ecosystems. Multivariate analysis showed three alternative community states: (1) large fish biomass and reefs dominated by non-canopy algae, (2) lower fish biomass but abundant native algal canopies and suspension feeders, and (3) low fish biomass and extensive barrens, with areas covered by turf algae. Our results suggest that the healthiest shallow rocky reef ecosystems in the Mediterranean have both large fish and algal biomass. Protection level and primary production were the only variables significantly correlated to community biomass structure. Fish biomass was significantly larger in well-enforced no-take marine reserves, but there were no significant differences between multi-use marine protected areas (which allow some fishing) and open access areas at the regional scale. The gradients reported here represent a trajectory of degradation that can be used to assess the health of any similar habitat in the Mediterranean, and to evaluate the efficacy of marine protected areas.
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Affiliation(s)
- Enric Sala
- National Geographic Society, Washington, DC, United States of America.
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Schunter C, Carreras-Carbonell J, Macpherson E, Tintoré J, Vidal-Vijande E, Pascual A, Guidetti P, Pascual M. Matching genetics with oceanography: directional gene flow in a Mediterranean fish species. Mol Ecol 2011; 20:5167-81. [PMID: 22097887 DOI: 10.1111/j.1365-294x.2011.05355.x] [Citation(s) in RCA: 107] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Genetic connectivity and geographic fragmentation are two opposing mechanisms determining the population structure of species. While the first homogenizes the genetic background across populations the second one allows their differentiation. Therefore, knowledge of processes affecting dispersal of marine organisms is crucial to understand their genetic distribution patterns and for the effective management of their populations. In this study, we use genetic analyses of eleven microsatellites in combination with oceanographic satellite and dispersal simulation data to determine distribution patterns for Serranus cabrilla, a ubiquitous demersal broadcast spawner, in the Mediterranean Sea. Pairwise population F(ST) values ranged between -0.003 and 0.135. Two genetically distinct clusters were identified, with a clear division located between the oceanographic discontinuities at the Ibiza Channel (IC) and the Almeria-Oran Front (AOF), revealing an admixed population in between. The Balearic Front (BF) also appeared to dictate population structure. Directional gene flow on the Spanish coast was observed as S. cabrilla dispersed from west to east over the AOF, from north to south on the IC and from south of the IC towards the Balearic Islands. Correlations between genetic and oceanographic data were highly significant. Seasonal changes in current patterns and the relationship between ocean circulation patterns and spawning season may also play an important role in population structure around oceanographic fronts.
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Affiliation(s)
- C Schunter
- Centre d'Estudis Avançats de Blanes-CSIC, Car Acc Cala St Francesc 14, Blanes, 17300 Girona, Spain
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Ledermann JA, Harter P, Gourley C, Friedlander M, Vergote IB, Rustin GJS, Scott C, Meier W, Shapira-Frommer R, Safra T, Matei D, Macpherson E, Watkins C, Carmichael J, Matulonis U. Phase II randomized placebo-controlled study of olaparib (AZD2281) in patients with platinum-sensitive relapsed serous ovarian cancer (PSR SOC). J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.5003] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Puillandre N, Macpherson E, Lambourdière J, Cruaud C, Boisselier-Dubayle MC, Samadi S. Barcoding type specimens helps to identify synonyms and an unnamed new species in Eumunida Smith, 1883 (Decapoda : Eumunididae). INVERTEBR SYST 2011. [DOI: 10.1071/is11022] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The primary purpose of DNA-barcoding projects is to generate an efficient expertise and identification tool. This is an important challenge to the taxonomy of the 21st century, as the demand increases and the expert capacity does not. However, identifying specimens using DNA-barcodes requires a preliminary analysis to relate molecular clusters to available scientific names. Through a case study of the genus Eumunida (Decapoda : Eumunididae), we illustrate how naming molecule-based units, and thus providing an accurate DNA-based identification tool, is facilitated by sequencing type specimens. Using both morphological and unlinked molecular markers (COI and 28S genes), we analysed 230 specimens from 12 geographic areas, covering two-thirds of the known diversity of the genus, including type specimens of 13 species. Most hypotheses of species delimitation are validated, as they correspond to molecular units linked to only one taxonomic name (and vice versa). However, a putative cryptic species is also revealed and three entities previously named as distinct species may in fact belong to a single one, and thus need to be synonymised. Our analyses, which integrate the current naming rules, enhance the α-taxonomy of the genus and provide an effective identification tool based on DNA-barcodes. They illustrate the ability of DNA-barcodes, especially when type specimens are included, to pinpoint where a taxonomic revision is needed.
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Gelmon KA, Hirte HW, Robidoux A, Tonkin KS, Tischkowitz M, Swenerton K, Huntsman D, Carmichael J, Macpherson E, Oza AM. Can we define tumors that will respond to PARP inhibitors? A phase II correlative study of olaparib in advanced serous ovarian cancer and triple-negative breast cancer. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.3002] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Palero F, Lopes J, Abelló P, Macpherson E, Pascual M, Beaumont MA. Rapid radiation in spiny lobsters (Palinurus spp) as revealed by classic and ABC methods using mtDNA and microsatellite data. BMC Evol Biol 2009; 9:263. [PMID: 19900277 PMCID: PMC2777881 DOI: 10.1186/1471-2148-9-263] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2009] [Accepted: 11/09/2009] [Indexed: 11/10/2022] Open
Abstract
Background Molecular tools may help to uncover closely related and still diverging species from a wide variety of taxa and provide insight into the mechanisms, pace and geography of marine speciation. There is a certain controversy on the phylogeography and speciation modes of species-groups with an Eastern Atlantic-Western Indian Ocean distribution, with previous studies suggesting that older events (Miocene) and/or more recent (Pleistocene) oceanographic processes could have influenced the phylogeny of marine taxa. The spiny lobster genus Palinurus allows for testing among speciation hypotheses, since it has a particular distribution with two groups of three species each in the Northeastern Atlantic (P. elephas, P. mauritanicus and P. charlestoni) and Southeastern Atlantic and Southwestern Indian Oceans (P. gilchristi, P. delagoae and P. barbarae). In the present study, we obtain a more complete understanding of the phylogenetic relationships among these species through a combined dataset with both nuclear and mitochondrial markers, by testing alternative hypotheses on both the mutation rate and tree topology under the recently developed approximate Bayesian computation (ABC) methods. Results Our analyses support a North-to-South speciation pattern in Palinurus with all the South-African species forming a monophyletic clade nested within the Northern Hemisphere species. Coalescent-based ABC methods allowed us to reject the previously proposed hypothesis of a Middle Miocene speciation event related with the closure of the Tethyan Seaway. Instead, divergence times obtained for Palinurus species using the combined mtDNA-microsatellite dataset and standard mutation rates for mtDNA agree with known glaciation-related processes occurring during the last 2 my. Conclusion The Palinurus speciation pattern is a typical example of a series of rapid speciation events occurring within a group, with very short branches separating different species. Our results support the hypothesis that recent climate change-related oceanographic processes have influenced the phylogeny of marine taxa, with most Palinurus species originating during the last two million years. The present study highlights the value of new coalescent-based statistical methods such as ABC for testing different speciation hypotheses using molecular data.
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Affiliation(s)
- Ferran Palero
- Departament de Genètica, Facultat de Biologia, Universitat de Barcelona, Av. Diagonal 645, Barcelona, Spain.
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Ellis MJ, Llombart A, Rolski J, Feltl D, Macpherson E, Lindemann J, Robertson JF. A comparison of high-dose (HD, 500 mg) fulvestrant vs anastrozole (1 mg) as first-line treatments for advanced breast cancer: results from FIRST. Cancer Res 2009. [DOI: 10.1158/0008-5472.sabcs-6126] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Abstract #6126
Background: The estrogen-receptor (ER) antagonist fulvestrant (Faslodex™) at the approved dose (AD, 250mg) has confirmed efficacy in postmenopausal women with advanced breast cancer following recurrence or progression on an anti-estrogen. However, evidence suggests that higher doses may have greater biological and clinical activity. A recent neoadjuvant study in patients with ER+, locally advanced disease showed significantly greater reductions in Ki67 LI and ER expression for fulvestrant high dose (HD, 500 mg) compared with AD.
 Methods: FIRST (Fulvestrant fIRst-line Study comparing endocrine Treatments) is a Phase II, randomized, open-label, multicentre study comparing fulvestrant HD (500 mg/month [2×250 mg im injections] plus 500 mg on Day 14 of Month 1) vs anastrozole (1 mg/day) as first-line treatments for postmenopausal women with advanced breast cancer. Eligible patients had no prior treatment for advanced disease and ER+, evaluable disease. Patients received treatment until disease progression or an event necessitating discontinuation. The primary endpoint was clinical benefit rate (CBR), ie the proportion of patients achieving a complete response, a partial response or stable disease for ≥24 weeks. Secondary endpoints included: objective response (OR), time to progression (TTP), duration of response (DoR), duration of clinical benefit (DoCB) and tolerability (adverse events [AEs] and laboratory tests).
 Results: In total, 205 women (median age 67 years) were included (fulvestrant HD: n=102; anastrozole: n=103). Median follow-up was 6.5 months. CBR was similar between treatments: fulvestrant HD 72.5%, anastrozole 67.0% (odds ratio 1.3023, 95% confidence interval [CI] 0.7170, 2.3976, p=0.3860). OR rates were: fulvestrant HD 36%, anastrozole 35.5%. Median TTP for anastrozole: 12.5 months; fulvestrant HD: not yet reached, corresponding to a 60% longer TTP for fulvestrant HD (hazard ratio=0.6266, 95% CI 0.3929, 0.9991, p=0.0496). DoR and DoCB were also numerically longer for fulvestrant HD. Both treatments were well tolerated, with no significant differences in the incidence of pre-specified AEs or the small number of withdrawals due to AEs.
 Discussion: Fulvestrant HD offers CB and OR rates similar to those obtained with anastrozole 1 mg, with a significantly longer TTP. Fulvestrant HD was well tolerated, with no unexpected AEs. The AE profile of fulvestrant HD appears consistent with the known toxicity profile of the AD. These results are encouraging and provide further support for the improved clinical activity anticipated with fulvestrant HD. Confirmation of these findings is awaited from an ongoing Phase III, double-blind comparison of fulvestrant HD and AD (CONFIRM).
Citation Information: Cancer Res 2009;69(2 Suppl):Abstract nr 6126.
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Affiliation(s)
- MJ Ellis
- 1 Washington University School of Medicine, St Louis
| | - A Llombart
- 2 Hospital Arnau de Vilanova, Lerida, Spain
| | - J Rolski
- 3 Oncological Institute, Krakow, Poland
| | - D Feltl
- 4 University Hospital Ostrava, Ostrava, Czech Republic
| | - E Macpherson
- 5 AstraZeneca Pharmaceuticals, Macclesfield, United Kingdom
| | - J Lindemann
- 5 AstraZeneca Pharmaceuticals, Macclesfield, United Kingdom
| | - JF Robertson
- 6 University of Nottingham, Nottingham, United Kingdom
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Palero F, Crandall KA, Abelló P, Macpherson E, Pascual M. Phylogenetic relationships between spiny, slipper and coral lobsters (Crustacea, Decapoda, Achelata). Mol Phylogenet Evol 2008; 50:152-62. [PMID: 18957325 DOI: 10.1016/j.ympev.2008.10.003] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2008] [Revised: 09/30/2008] [Accepted: 10/04/2008] [Indexed: 10/21/2022]
Abstract
Molecular data can aid in the resolution of conflicting hypotheses generated through difficulties in the interpretation of morphological data and/or an incomplete fossil record. Moreover, the reconstruction of phylogenetic relationships using molecular data may help to trace back the origin of morphological innovations which had a major impact on the radiation of a taxonomical group. In this work, different nuclear (18S, 28S, and H3) and mitochondrial (16S and COI) gene regions were sequenced in a total of 35 Achelatan species to test conflicting hypotheses of evolutionary relationships within the Achelata infraorder and solve the taxonomic disagreements in the group. The combined molecular dataset strongly supports the hypothesis that Achelata is a monophyletic group composed of two main families: Palinuridae and Scyllaridae. Synaxidae is found to be a polyphyletic group, which should be included within Palinuridae. Consequently, our results indicate that the origin of the stridulating organ occurred only once during Achelata evolution. Finally, the two main clades found within the Scyllaridae are in agreement with previous inferences based on adult morphological data. The dating of divergence of Achelata obtained with a relaxed-clock model is compatible with previous hypotheses of a Triassic origin of the Achelata.
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Affiliation(s)
- Ferran Palero
- Departament de Genètica, Facultat de Biologia, Universitat de Barcelona, Av. Diagonal 645, 08028 Barcelona, Spain.
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Cabezas P, Bloor P, Acevedo I, Toledo C, Calvo M, Macpherson E, Machordom A. Development and characterization of microsatellite markers for the endangered anchialine squat lobster Munidopsis polymorpha. CONSERV GENET 2008. [DOI: 10.1007/s10592-008-9611-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Carreras-Carbonell J, Macpherson E, Pascual M. Utility of pairwise mtDNA genetic distances for predicting cross-species microsatellite amplification and polymorphism success in fishes. CONSERV GENET 2007. [DOI: 10.1007/s10592-007-9322-2] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Roques S, Galarza JA, Macpherson E, Turner GF, Carreras-Carbonell J, Rico C. Isolation of eight microsatellites loci from the saddled bream, Oblada melanura and cross-species amplification in two sea bream species of the genus Diplodus. CONSERV GENET 2007. [DOI: 10.1007/s10592-006-9254-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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