CARACTERIZAÇÃO DO SISTEMA DE ACASALAMENTO DO BLENÍDEO Salaria Pavo NA RIA FORMOSA

Total Page:16

File Type:pdf, Size:1020Kb

CARACTERIZAÇÃO DO SISTEMA DE ACASALAMENTO DO BLENÍDEO Salaria Pavo NA RIA FORMOSA CARACTERIZAÇÃO DO SISTEMA DE ACASALAMENTO DO BLENÍDEO Salaria pavo NA RIA FORMOSA MARIA TERESA PISSARREIRA MENDES FAGUNDES Tese de doutoramento em Ciência Animal, Especialidade em Morfologia e Fisiologia 2010 MARIA TERESA PISSARREIRA MENDES FAGUNDES CARACTERIZAÇÃO DO SISTEMA DE ACASALAMENTO DO BLENÍDEO Salaria pavo NA RIA FORMOSA Tese de Candidatura ao grau de Doutor em Ciência Animal, Especilidade em Morfologia e Fisiologia, submetida ao Instituto de Ciências Biomédicas de Abel Salazar da Universidade do Porto. Orientador – Doutor Rui Filipe Oliveira Professor Catedrático Instituto Superior de Psicologia Aplicada Instituto Gulbenkian de Ciência Co-orientador – Doutor Adelino Canário Professor Catedrático Faculdade de Ciências de Mar e Ambiente da Universidade do Algarve Co-orientador – Doutor João Coimbra Professor Catedrático Instituto de Ciências Biomédicas Abel Salazar da Universidade do Porto 1 2 Esta tese foi financiada pela Fundação para a Ciência e Tecnologia através de uma bolsa de doutoramento com a referência SFRH/BD/6502/2001 3 4 AGRADECIMENTOS Durante todo o percurso que conduziu a esta tese tive o prazer de conhecer e de me poder relacionar com pessoas que deixaram em mim um marca indelével e pessoas que farão para sempre parte da minha vida e daquilo que eu sou. Pessoas lindas, extraordinárias ou sublimes - quero agradecer a todas elas. Pelos ensinamentos, pelas descobertas e sobretudo pelos momentos vividos. Com elas partilhei grandes momentos de felicidade mas também profundas tristezas. Com elas vivi. E de todas estas alegrias e pesares produziu-se um trabalho com muitas imperfeições que não faz jus à excelência de quem me orientou nem às expectativas em mim depositadas mas que é o meu trabalho. A todas elas gostaria de poder retribuir melhor. Ao Professor Doutor Rui Oliveira pela sua extraordinária e inspiradora presença científica, pela sua visão e pela sua personalidade. Pela sua interpretação inovadora dos factos, intrépido explorador de novas ideias, pela sua coragem e determinação e pela grande humanidade. Ao Professor Doutor Adelino Canário e ao Professor Doutor João Coimbra por terem aceite a co-orientação deste trabalho e por toda a compreensão e disponibilidade de apoio. Ao Professor Doutor Vitor Almada por me ter acolhido na Unidade de Investigação em Eco-Etologia e sobretudo pela constituição de um grupo de investigação tão dinâmico e estimulante que é hoje um marco incontornável da ciência em Portugal. Ao Prof. Doutor Emanuel Gonçalves, ao Prof. Doutor Manuel Eduardo dos Santos pela partilha dos seus conhecimentos e experiências, pelo entusiasmo e todo apoio, sempre disponível e generoso. A toda a equipa do UIEE, de quem evidentemente tenho de destacar os agradecimentos: Ao David Gonçalves, a quem devo sempre um agradecimento especial. Pela motivação, pela disponibilidade, pela discreta amizade. Não posso deixar nunca de evidenciar a sua capacidade de fazer tudo parecer fácil e exequível, a sua capacidade de mobilização de motivações e a sua não menos extraordinária capacidade de análise e abordagem das questões científicas. Obrigada. Ao Albert Ros por acreditar em mim e me fazer acreditar em mim. Pela sua extraordinária capacidade de observação, pelo seu infinito espírito crítico, por rejeitar todos os dogmas e por uma complexificação enriquecedora do mundo. 5 À Katharina Hirshenhauser pela sua generosa amizade, calma, inspiradora e doce, que contrasta com a determinação que conduz o seu excelente trabalho. Ao Luís Carneiro pela doçura sarcástica da sua personalidade, pelas largas gargalhadas e tantas boas conversas, desabafos e conselhos e todas aquelas pequenas observações que transpareciam todo o seu conhecimento. Foi com muita pena que a nossa amizade não pode crescer... Ao João Saraiva pela sua infindável alegria e entusiasmo pelo trabalho e pela vida em geral. Pelas incontáveis ajudas no campo e por todo o apoio logístico que mais do que apoio logístico representava sempre um prazer. Obrigada por proporcionares sempre bons momentos de convívio a toda a equipa. À Mariana Simões com quem tive o prazer de partilhar uma pequena parte deste trajecto numa fase particularmente atribulada mas feliz. Muito obrigada. À Joana Jordão e à Tânia Oliveira quero agradecer a grande amizade, a partilha de experiências, o apoio de todas as naturezas e ainda o sarcasmo político e as técnicas laboratoriais. Ao Ricardo Matos pela sensibilidade e apurado sentido de cooperação; pelos saudosos bons momentos passados na Ilha da Culatra juntamente com o David Gonçalves e a Ágata Dias e todos os outros voluntários que muito alegremente contribuiram para este trabalho. E não posso deixar também de agradecer a amizade e entreajuda da Clara Amorim, Ricardo Beldade, Vera Domingues, Miguel Barbosa, Magda Teles, Leonor Galhardo, Vera Carvalho, Duarte Fonseca e Sílvia Costa; e a contagiante e refrescante alegria da Margarida Carvalho, Olinda Almeida, Fábio Valério, João Miguel Simões, Ana Sofia Felix, Liza Roque e restantes elementos da UIEE. A toda a equipa da Estação experimental do Ramalhete: Rui Serrano, Pedro, Rita, Anne, Eduardo Barata quero agradecer por me terem recebido tão generosamente, por me terem guiado num ambiente completamente novo e por toda a solidariedade e apoio num ano tão frustrante, com tanto trabalho e tão poucos frutos. A todos os que de alguma maneira, ou de muitas maneiras, participaram neste trabalho incluindo os inúmeros ajudantes de trabalho de campo de que não poderei nomear todos, de tantos que foram. Um reconhecimento muito especial à Susana Matos pelo apoio incondicional, e à Patrícia Salgueiro pela recta final, além da já longínqua amizade de ambas. E aos restantes grandes amigos de infância: Marta Rodrigues, António Costa, 6 Luís Antunes, Anlid Costa, Valentina Cruz pela sua presença tão essencial e compreensiva. E ao Filipe Canário pelo exemplo de capacidade de trabalho e pelo contagiante entusiasmo na realização até do mais árduo trabalho de campo. No que respeita a trabalho de campo devo um grande agradecimento aos residentes da Ilha da Culatra por terem permitido trabalhar nos seus campos de cultivo de ameijoa e muito em especial ao Sr. Zé e à D. Maria José e a restante família por tão carinhoso acolhimento, sempre prestável e alegre. Tenho também de agradecer o apoio logístico constante do Parque Natural da Ria Formosa sem o qual este trabalho não teria sido possível. Em particular aos vigilantes da natureza de quem tenho de destacar o Virgílio, sempre disponível a qualquer hora do dia ou da madrugada, e por nos dar a conhecer o bom peixe de Olhão. Gostaria sobretudo de agradecer à minha família. Ao meu pai e à minha mãe pelo constante apoio e motivação, pelas preocupações, pela compreensão e pela sua dedicação e amor - mesmo à distância estão sempre presentes. Finalmente, quero agradecer aos meus grandes amores, Albert e Luís, indissociáveis deste trabalho pela sua presença constante em casa, no laboratório, no campo. Pelo apoio, compreensão e dedicação sem limites e acima de tudo pela felicidade com que enchem os meus dias, mesmo os daqueles fins de semana que não pude partilhar com eles. 7 8 CONTENTS AGRADECIMENTOS 5 CONTENTS 9 PUBLICAÇÕES E COMUNICAÇÕES EM REUNIÕES CIENTÍFICAS RESULTANTES DA DISSERTAÇÃO DE DOUTORAMENTO 11 RESUMO 15 ABSTRACT 21 RÉSUMÉ 25 GENERAL INTRODUCTION 31 CHAPTER I: Female mate choice and mate search tactics in a sex role reversed population of the peacock blenny Salaria pavo (Risso, 1810) 59 CHAPTER II: Brood size manipulation and androgen levels in nest-holder males of the peacock blenny 79 CHAPTER III: Life-history pathways associated with sequential reproductive tactics in the peacock blenny, Salaria pavo 107 CHAPTER IV: Social cues in the expression of sequential alternative reproductive tactics in young males of the peacock blenny, Salaria pavo 129 CHAPTER V: Seasonal and tidal variation of microhabitat use by the peacock blenny, an intertidal fish with alternative reproductive tactics 165 GENERAL CONCLUSIONS 191 9 10 PUBLICAÇÕES E COMUNICAÇÕES EM REUNIÕES CIENTÍFICAS RESULTANTES DA DISSERTAÇÃO DE DOUTORAMENTO Artigos em publicações indexadas: Fagundes, T. & Oliveira, R.F. Seasonal and tidal variation of microhabitat use by the peacock blenny, an intertidal fish with alternative reproductive tactics. Submitted to Journal of the Marine Biological Association of the United Kingdom. Fagundes, T., Simões, M.G., Gonçalves, D.M. & Oliveira, R.F. Social cues in the expression of sequential alternative reproductive tactics in young males of the peacock blenny, Salaria pavo. Submitted to Behaviour. Ros, A.F.H., Fagundes, T. & Oliveira, R.F. 2009. Adjustment of brood size and androgen levels in a teleost species with exclusive male parental care. Anim. Behav. 78: 25-33. Fagundes, T., Gonçalves, D.M. & Oliveira, R.F. 2007. Female mate choice and mate search tactics in a sex role reversed population of the peacock blenny, Salaria pavo (Risso, 1810). J. Fish Biol. 71: 77-89. Comunicações em reuniões científicas: Ros, A.F.H., Fagundes, T. & Oliveira, R.F. Is brood size related to male quality and androgen levels in the peacock blenny? Apresentação oral. 4th European Conference on Behavioural Biology, Dijon, 18 a 20 Julho, 2008. Fagundes, T., Simões, M., Gonçalves, D.M. & Oliveira, R.F. Life history pathways in a fish with alternative reproductive tactics. Apresentação oral. 3rd European Conference on Behavioural Biology, Belfast, 4 a 6 de Setembro, 2006. Fagundes, T., Simões, M., Gonçalves, D.M. & Oliveira, R.F. Life history pathways in a fish with alternative reproductive tactics. Apresentação de poster. 11th International Behavioral Ethology Congress, Tours, 23 a 29 Julho, 2006. Fagundes, T., Simões, M., Gonçalves, D.M. & Oliveira, R.F. Decisões da história vital de um peixe com tácticas de reprodução alternativas. Apresentação oral. VII Congresso Nacional de Etologia, Coimbra, 2 e 3 Junho, 2006. Fagundes, T., Simões, M., Gonçalves, D.M. & Oliveira, R.F. Effects of social status on mating tactic choice in a fish species with alternative reproductive tactics. Apresentação oral. XXIX International Ethological Conference, Budapeste, 20 a 27 Agosto, 2005. 11 Gonçalves, D.M., Fagundes, T., Simões, M.
Recommended publications
  • New Biological Data for Salaria Fluviatilis (Asso, 1801) (Blenniidae) from North of Algeria
    Zoology and Ecology, 2020, Volume 30, Number 2 Print ISSN: 2165-8005 Online ISSN: 2165-8013 https://doi.org/10.35513/21658005.2020.2.2 NEW BIOLOGICAL DATA FOR SALARIA FLUVIATILIS (ASSO, 1801) (BLENNIIDAE) FROM NORTH OF ALGERIA Djamel Amalou*, Djamila Ider, Zouhir Ramdane and Riadh Moulaï Laboratoire de Zoologie Appliquée et d’Ecophysiologie Animale, Faculté des Sciences de la Nature et de la Vie, Université A. Mira de Bejaia, 06000 Bejaia, Algérie *Corresponding author. Email: [email protected] Article history Abstract. The family Blenniidae inhabiting freshwater systems has been scarcely studied, particu- Received: 30 April 2020; ac- larly in North Africa. The present study focused on the biology of Salaria fluviatilis (Asso, 1801) cepted 12 August 2020 from Kabylie region (northern Algeria). A total of 198 specimens were sampled from May 2015 to May 2016. The total length of this fish varied between 4.9 and 12.7 cm and its total weight varied Keywords: between 1.2 and 23.7 g. The age of this fish species varied between 1 and 3 years. The sex ratio ofS. Salaria fluviatilis; age; fluviatiliswas in balance (SR = 0.98). The results of our investigation of length-weight relationship growth parameters; repro- show highly significant correlation (p > 0.001); the correlation coefficient r varied between 0.966 duction period; Kabylie and 0.985. The specimens of this fish species exhibited positive allometry in males (b = 3.195) and region negative allometry in females (b = 2.782). Growth parameters were higher in males than in females, except for the growth rate (K) where the values were close.
    [Show full text]
  • Diversity and Length-Weight Relationships of Blenniid Species (Actinopterygii, Blenniidae) from Mediterranean Brackish Waters in Turkey
    EISSN 2602-473X AQUATIC SCIENCES AND ENGINEERING Aquat Sci Eng 2019; 34(3): 96-102 • DOI: https://doi.org/10.26650/ASE2019573052 Research Article Diversity and Length-Weight relationships of Blenniid Species (Actinopterygii, Blenniidae) from Mediterranean Brackish Waters in Turkey Deniz İnnal1 Cite this article as: Innal, D. (2019). Diversity and length-weight relationships of Blenniid Species (Actinopterygii, Blenniidae) from Mediterranean Brackish Waters in Turkey. Aquatic Sciences and Engineering, 34(3), 96-102. ABSTRACT This study aims to determine the species composition and range of Mediterranean Blennies (Ac- tinopterygii, Blenniidae) occurring in river estuaries and lagoon systems of the Mediterranean coast of Turkey, and to characterise the length–weight relationship of the specimens. A total of 15 sites were surveyed from November 2014 to June 2017. A total of 210 individuals representing 3 fish species (Rusty blenny-Parablennius sanguinolentus, Freshwater blenny-Salaria fluviatilis and Peacock blenny-Salaria pavo) were sampled from five (Beşgöz Creek Estuary, Manavgat River Es- tuary, Karpuzçay Creek Estuary, Köyceğiz Lagoon Lake and Beymelek Lagoon Lake) of the locali- ties investigated. The high juvenile densities of S. fluviatilis in Karpuzçay Creek Estuary and P. sanguinolentus in Beşgöz Creek Estuary were observed. Various threat factors were observed in five different native habitats of Blenny species. The threats on the habitat and the population of the species include the introduction of exotic species, water ORCID IDs of the authors: pollution, and more importantly, the destruction of habitats. Five non-indigenous species (Prus- D.İ.: 0000-0002-1686-0959 sian carp-Carassius gibelio, Eastern mosquitofish-Gambusia holbrooki, Redbelly tilapia-Copt- 1Burdur Mehmet Akif Ersoy odon zillii, Stone moroko-Pseudorasbora parva and Rainbow trout-Oncorhynchus mykiss) were University, Department of Biology, observed in the sampling sites.
    [Show full text]
  • The Morphology and Evolution of Tooth Replacement in the Combtooth Blennies
    The morphology and evolution of tooth replacement in the combtooth blennies (Ovalentaria: Blenniidae) A THESIS SUBMITTED TO THE FACULTY OF THE UNIVERSITY OF MINNESOTA BY Keiffer Logan Williams IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF MASTER OF SCIENCE Andrew M. Simons July 2020 ©Keiffer Logan Williams 2020 i ACKNOWLEDGEMENTS I thank my adviser, Andrew Simons, for mentoring me as a student in his lab. His mentorship, kindness, and thoughtful feedback/advice on my writing and research ideas have pushed me to become a more organized and disciplined thinker. I also like to thank my committee: Sharon Jansa, David Fox, and Kory Evans for feedback on my thesis and during committee meetings. An additional thank you to Kory, for taking me under his wing on the #backdattwrasseup project. Thanks to current and past members of the Simons lab/office space: Josh Egan, Sean Keogh, Tyler Imfeld, and Peter Hundt. I’ve enjoyed the thoughtful discussions, feedback on my writing, and happy hours over the past several years. Thanks also to the undergraduate workers in the Simons lab who assisted with various aspects of my work: Andrew Ching and Edward Hicks for helping with histology, and Alex Franzen and Claire Rude for making my terms as curatorial assistant all the easier. In addition, thank you to Kate Bemis and Karly Cohen for conducting a workshop on histology to collect data for this research, and for thoughtful conversations and ideas relating to this thesis. Thanks also to the University of Guam and Laurie Raymundo for hosting me as a student to conduct fieldwork for this research.
    [Show full text]
  • Updated Checklist of Marine Fishes (Chordata: Craniata) from Portugal and the Proposed Extension of the Portuguese Continental Shelf
    European Journal of Taxonomy 73: 1-73 ISSN 2118-9773 http://dx.doi.org/10.5852/ejt.2014.73 www.europeanjournaloftaxonomy.eu 2014 · Carneiro M. et al. This work is licensed under a Creative Commons Attribution 3.0 License. Monograph urn:lsid:zoobank.org:pub:9A5F217D-8E7B-448A-9CAB-2CCC9CC6F857 Updated checklist of marine fishes (Chordata: Craniata) from Portugal and the proposed extension of the Portuguese continental shelf Miguel CARNEIRO1,5, Rogélia MARTINS2,6, Monica LANDI*,3,7 & Filipe O. COSTA4,8 1,2 DIV-RP (Modelling and Management Fishery Resources Division), Instituto Português do Mar e da Atmosfera, Av. Brasilia 1449-006 Lisboa, Portugal. E-mail: [email protected], [email protected] 3,4 CBMA (Centre of Molecular and Environmental Biology), Department of Biology, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal. E-mail: [email protected], [email protected] * corresponding author: [email protected] 5 urn:lsid:zoobank.org:author:90A98A50-327E-4648-9DCE-75709C7A2472 6 urn:lsid:zoobank.org:author:1EB6DE00-9E91-407C-B7C4-34F31F29FD88 7 urn:lsid:zoobank.org:author:6D3AC760-77F2-4CFA-B5C7-665CB07F4CEB 8 urn:lsid:zoobank.org:author:48E53CF3-71C8-403C-BECD-10B20B3C15B4 Abstract. The study of the Portuguese marine ichthyofauna has a long historical tradition, rooted back in the 18th Century. Here we present an annotated checklist of the marine fishes from Portuguese waters, including the area encompassed by the proposed extension of the Portuguese continental shelf and the Economic Exclusive Zone (EEZ). The list is based on historical literature records and taxon occurrence data obtained from natural history collections, together with new revisions and occurrences.
    [Show full text]
  • Authorship, Availability and Validity of Fish Names Described By
    ZOBODAT - www.zobodat.at Zoologisch-Botanische Datenbank/Zoological-Botanical Database Digitale Literatur/Digital Literature Zeitschrift/Journal: Stuttgarter Beiträge Naturkunde Serie A [Biologie] Jahr/Year: 2008 Band/Volume: NS_1_A Autor(en)/Author(s): Fricke Ronald Artikel/Article: Authorship, availability and validity of fish names described by Peter (Pehr) Simon ForssSSkål and Johann ChrisStian FabricCiusS in the ‘Descriptiones animaliumÂ’ by CarsSten Nniebuhr in 1775 (Pisces) 1-76 Stuttgarter Beiträge zur Naturkunde A, Neue Serie 1: 1–76; Stuttgart, 30.IV.2008. 1 Authorship, availability and validity of fish names described by PETER (PEHR ) SIMON FOR ss KÅL and JOHANN CHRI S TIAN FABRI C IU S in the ‘Descriptiones animalium’ by CAR S TEN NIEBUHR in 1775 (Pisces) RONALD FRI C KE Abstract The work of PETER (PEHR ) SIMON FOR ss KÅL , which has greatly influenced Mediterranean, African and Indo-Pa- cific ichthyology, has been published posthumously by CAR S TEN NIEBUHR in 1775. FOR ss KÅL left small sheets with manuscript descriptions and names of various fish taxa, which were later compiled and edited by JOHANN CHRI S TIAN FABRI C IU S . Authorship, availability and validity of the fish names published by NIEBUHR (1775a) are examined and discussed in the present paper. Several subsequent authors used FOR ss KÅL ’s fish descriptions to interpret, redescribe or rename fish species. These include BROU ss ONET (1782), BONNATERRE (1788), GMELIN (1789), WALBAUM (1792), LA C E P ÈDE (1798–1803), BLO C H & SC HNEIDER (1801), GEO ff ROY SAINT -HILAIRE (1809, 1827), CUVIER (1819), RÜ pp ELL (1828–1830, 1835–1838), CUVIER & VALEN C IENNE S (1835), BLEEKER (1862), and KLUNZIN G ER (1871).
    [Show full text]
  • Spatial Learning Based on Visual Landmarks in the Freshwater Blenny Salaria Fluviatilis
    1 Spatial learning based on visual landmarks in the 2 freshwater blenny Salaria fluviatilis (Asso, 1801). 3 4 Noëlle Fabre *, Eduardo García-Galea * & Dolors Vinyoles *, 1 5 *Department of Animal Biology (Vertebrates), Faculty of Biology, 6 University of Barcelona, Avda. Diagonal 645, 08028 Barcelona, Spain. 7 8 9 10 11 12 13 14 15 16 17 1 Corresponding author: Tel.: +34 (0) 934039808; fax: +34 (0) 934035740; email: [email protected] 1 18 Abstract 19 The use and learning of visual landmarks seems to be strongly influenced by ecological 20 demands and vary according to habitat, sex and, presumably, dominance status. In 21 blennies, sexes differ in their home-range extension and this could predispose them to 22 use different mechanisms to navigate. The main aim of this study was to investigate if 23 Salaria fluviatilis (a benthonic and polyginic freshwater blenny) was able to solve a 24 learning maze using direct visual landmarks. Performances between sexes were 25 compared and the possible relationship between the males’ secondary sexual 26 characteristics (SSCs) development and their spatial ability was considered. In this 27 species the SSCs consist of a cephalic crest and a pair of anal glands. Fish were 28 subjected to 10 sessions (each one consisting of 11 consecutive trials) in a specially 29 designed apparatus where they had to find the correct exit using direct visual 30 landmarks. The proportion of males that learned the task (80%) was higher than that 31 of females (30%). Cephalic crest development of the male was associated with a higher 32 readiness in solving the spatial task.
    [Show full text]
  • Effects of Climate Changes on the Mediterranean Nektonic Communities, and Consequences on Commercial Fisheries
    Università Ca’Foscari Venezia Scuola Dottorale di Ateneo Graduate School Dottorato di Ricerca in Scienze Ambientali Ciclo 27° Anno di discussione 2014 Effects of Climate Changes on the Mediterranean Nektonic communities, and consequences on commercial fisheries SETTORE SCIENTIFICO DISCIPLINARE DI AFFERENZA: BIO/07 Tesi di dottorato di Alberto Caccin, matricola 823427 Coordinatore del Dottorato Tutore del Dottorando Prof. Gabriele Capodaglio Prof. Fabio Pranovi Contents Page Contents I List of Figures III List of Tables V 1 Introduction 1 2 Venetian lacuna or Boreal enclosure? 7 2.1 Introduction . 11 2.1.1 Peculiarities of the Venetian lacuna . 12 2.2 Materials and Methods . 15 2.2.1 Shore-dunes plant communities comparison . 15 2.2.2 Temporal variations in biological communities . 17 2.2.3 Winter sea surface isotherm trend analysis . 19 2.3 Results . 19 2.3.1 Shore-dunes plant communities comparison . 19 2.3.2 Temporal variations in biological communities . 21 2.3.3 Winter sea surface isotherm trend . 25 2.4 Discussion . 28 3 Vulnerability of Artisanal Fisheries to Climate Changes in the Venice Lagoon 35 3.1 Introduction . 39 3.2 Materials and methods . 40 3.2.1 Sampling activities . 40 3.2.2 Data analysis . 42 3.3 Results . 43 3.3.1 Field sampling activity . 43 3.3.2 Time series analysis . 46 3.4 Discussion . 50 I II CONTENTS 4 Vulnerability of the northern Adriatic Sea Fishery to Climate Change 57 4.1 Introduction . 61 4.2 Materials and Methods . 61 4.3 Results . 63 4.4 Discussion . 65 5 Marine food-webs and warming scenarios 69 5.1 Introduction .
    [Show full text]
  • Euryhalinity in an Evolutionary Context Eric T
    University of Connecticut OpenCommons@UConn EEB Articles Department of Ecology and Evolutionary Biology 2013 Euryhalinity in an Evolutionary Context Eric T. Schultz University of Connecticut - Storrs, [email protected] Stephen D. McCormick USGS Conte Anadromous Fish Research Center, [email protected] Follow this and additional works at: https://opencommons.uconn.edu/eeb_articles Part of the Comparative and Evolutionary Physiology Commons, Evolution Commons, and the Terrestrial and Aquatic Ecology Commons Recommended Citation Schultz, Eric T. and McCormick, Stephen D., "Euryhalinity in an Evolutionary Context" (2013). EEB Articles. 29. https://opencommons.uconn.edu/eeb_articles/29 RUNNING TITLE: Evolution and Euryhalinity Euryhalinity in an Evolutionary Context Eric T. Schultz Department of Ecology and Evolutionary Biology, University of Connecticut Stephen D. McCormick USGS, Conte Anadromous Fish Research Center, Turners Falls, MA Department of Biology, University of Massachusetts, Amherst Corresponding author (ETS) contact information: Department of Ecology and Evolutionary Biology University of Connecticut Storrs CT 06269-3043 USA [email protected] phone: 860 486-4692 Keywords: Cladogenesis, diversification, key innovation, landlocking, phylogeny, salinity tolerance Schultz and McCormick Evolution and Euryhalinity 1. Introduction 2. Diversity of halotolerance 2.1. Empirical issues in halotolerance analysis 2.2. Interspecific variability in halotolerance 3. Evolutionary transitions in euryhalinity 3.1. Euryhalinity and halohabitat transitions in early fishes 3.2. Euryhalinity among extant fishes 3.3. Evolutionary diversification upon transitions in halohabitat 3.4. Adaptation upon transitions in halohabitat 4. Convergence and euryhalinity 5. Conclusion and perspectives 2 Schultz and McCormick Evolution and Euryhalinity This chapter focuses on the evolutionary importance and taxonomic distribution of euryhalinity. Euryhalinity refers to broad halotolerance and broad halohabitat distribution.
    [Show full text]
  • Tides and Moon Drive Fish Movements in a Brackish Lagoon T ∗ Marco Milardi , Mattia Lanzoni, Anna Gavioli, Elisa Anna Fano, Giuseppe Castaldelli
    Estuarine, Coastal and Shelf Science 215 (2018) 207–214 Contents lists available at ScienceDirect Estuarine, Coastal and Shelf Science journal homepage: www.elsevier.com/locate/ecss Tides and moon drive fish movements in a brackish lagoon T ∗ Marco Milardi , Mattia Lanzoni, Anna Gavioli, Elisa Anna Fano, Giuseppe Castaldelli Department of Life Sciences and Biotechnology, University of Ferrara, Via Luigi Borsari 46, Ferrara, 44121, Italy ARTICLE INFO ABSTRACT Keywords: Brackish lagoons, on the edge between marine and freshwater ecosystems, are vulnerable aquatic environments Moon that act as nursery grounds for several of the most commercially exploited fish families. We used long-term Tide passive gear data, to investigate whether the moon and tides affected fish movement between inner and outer Shallow lagoon habitats in a Northern Mediterranean coastal lagoon. In particular, we used multivariate, threshold and non- Juvenile fishes linear correlation analyses to explore the relationship between fish catches and moon and tide variables in Movement transitional habitats, accounting for the presence of potential prey and other major temporal and environmental Grey shrimp variables. Fish movements between habitats were influenced by moon and tide factors, which had effects comparable to annual and seasonal variations, respectively. Overall, the magnitude of effects related to the moon parameters were smaller than most environmental parameters examined, but still larger than e.g. the presence of invertebrate prey (lagoon shrimp) or some of the tide factors. European flounder catches were positively cor- related with disk illumination, while sand and black goby were influenced by the moon phase. Other benthic and pelagic species showed no significant correlation.
    [Show full text]
  • UNEP-MAP RAC/SPA 2010. the Mediterranean Sea Biodiversity: State of the Ecosystems, Pressures, Impacts and Future Priorities
    United Nations Environment Programme Mediterranean Action Plan Regional Activity Centre for Specially Protected Areas The Mediterranean Sea Biodiversity: state of the ecosystems, pressures, impacts and future priorities A September, 2010 CA D C Note: The designations employed and the presentation of the material in this document do not imply the expression of any opinion whatsoever on the part of UNEP or RAC/SPA concerning the legal status of any State, Territory, city or area, or of its authorities, or concerning the delimitation of their frontiers or boundaries. ©2010 United Nations Environment Programme (UNEP) Mediterranean Action Plan Regional Activity Centre for Specially Protected Areas (RAC/SPA) Boulevard du Leader Yasser Arafat BP 337 –1080 Tunis Cedex –TUNISIA E-mail : [email protected] This publication may be reproduced in whole or in part and in any form for educational or non-profit purposes without special permission from the copyright holder, provided acknowledgement of the source is made. UNEP-MAP-RAC/SPA would appreciate receiving a copy of any publication that uses this publication as a source. No use of this publication maybe made for resale of for another commercial purpose what over without permission in writing from UNEP-MAP-RAC/SPA. This report should be quoted as: UNEP-MAP RAC/SPA 2010. The Mediterranean Sea Biodiversity: state of the ecosystems, pressures, impacts and future priorities. By Bazairi, H., Ben Haj, S., Boero, F., Cebrian, D., De Juan, S., Limam, A., Lleonart, J., Torchia, G., and Rais, C., Ed. RAC/SPA, Tunis; 100 pages. © Art drawings by Alberto Gennari CONTENTS INTRODUCTORY NOTE ....................................................................................................................................
    [Show full text]
  • Dimorfismo Sessuale E Preferenze Femminili in Salaria Pavo (Pisces: Blenniidae)
    Università degli Studi di Padova Facoltà di Scienze MM. FF. NN. Laurea Specialistica in Biologia Marina Dimorfismo sessuale e preferenze femminili in Salaria pavo (Pisces: Blenniidae) Relatore: prof.ssa Maria Berica Rasotto Dipartimento di Biologia Laureanda: Nicole Chimento Anno Accademico 2008/2009 1 2 INDICE 1. INTRODUZIONE 1 Selezione sessuale 1 Caratteri multipli 5 I Teleostei come modelli per lo studio della selezione sessuale 7 Blenniidae 9 Salaria pavo 11 SCOPO DELLA TESI 14 2. MATERIALI E METODI 15 Siti di raccolta 15 Preparazione delle sagome 16 Esperimenti 17 Esperimento 1 - Scelta per le Ghiandole Anali 19 Esperimento 2 – Scelta per la Cresta 19 Esperimento 3 – Scelta in presenza di entrambi i caratteri 19 Osservazioni sul Campo 19 Analisi dei Dati 20 3. RISULTATI 21 Esperimento 1 21 Esperimento 2 24 Esperimento 3 27 Osservazioni sul Campo 28 4. DISCUSSIONE 29 5. BIBLIOGRAFIA 34 3 4 1. INTRODUZIONE Molte specie animali presentano uno spiccato dimorfismo sessuale: basti pensare alle livree variopinte dei maschi di molte specie di uccelli o alle corna di alcuni mammiferi, o ancora semplicemente alle differenze dimensionali tra gli individui dei due sessi presenti in moltissimi taxa. Spesso questi caratteri appaiono ingombranti, vistosi e compromettono la sopravvivenza di chi li porta, e per questo, fin dalla prima stesura della teoria dell’evoluzione, Darwin (1859) propose dei meccanismi particolari, diversi dalla selezione naturale, per la loro comparsa e mantenimento. Selezione sessuale I meccanismi proposti da Darwin vengono riuniti sotto la definizione generale di selezione sessuale. Essa si distingue dalla selezione naturale perché agisce sull’evoluzione dei tratti avvantaggiando o svantaggiando l’individuo non in termini di sopravvivenza, ma bensì nella possibilità di riprodursi (Darwin, 1859).
    [Show full text]
  • Length-Weight Relationship and Condition Factor of Freshwater Blenny Salaria Fluviatilis (Asso, 1801) in Asi River (Hatay, Turkey)
    Mar. Sci. Tech. Bull. (2021) 10(1): 54-61 dergipark.org.tr/en/pub/masteb e–ISSN: 2147–9666 www.masteb.com [email protected] DOI: 10.33714/masteb.782384 RESEARCH ARTICLE Length-weight relationship and condition factor of freshwater blenny Salaria fluviatilis (Asso, 1801) in Asi River (Hatay, Turkey) Sibel Alagöz Ergüden1* 1 Çukurova University, Imamoglu Vocational School, Fisheries Department, 01700, Imamoglu, Adana, Turkey ARTICLE INFO ABSTRACT Article History: In this study, a total of 109 specimens (57 female and 52 male) of Salaria fluviatilis were Received: 18.08.2020 captured by tulle net and scooped net between October 2017 and March 2018 from the Asi River Received in revised form: 26.10.2020 system, Turkey. The length-weight relationship was W =0.0013L3.054 (r²= 0.967) for both sexes Accepted: 29.10.2020 Available online: 14.11.2020 with isometric growth. The values of the exponent b of the length-weight relationships (LWRs) were 3.055 for females and 3.052 for males. The b values for females, males, and both sexes were Keywords: not significantly different from 3.0 (P>0.05). Fulton condition factor (CF) was calculated Blenniidae 1.3955±0.034 for females, 1.4495±0.042 for males and 1.4212±0.027, for both sexes. Estimations Regression parameters of LWRs and CF for both sexes of S. fluviatilis, captured from Asi River, were provided for the Inland waters first time. Asi River Basin Turkey Please cite this paper as follows: Alagöz Ergüden, S. (2021). Length-weight relationship and condition factor of freshwater blenny Salaria fluviatilis (Asso, 1801) in Asi River (Hatay, Turkey).
    [Show full text]