Spawning Behaviour and the Softmouth Trout Dilemma
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
WILD LANDFILLS and IMPACT on WATERCOURSES WEST HERZEGOVINA COUNTY (Bih)
WILD LANDFILLS AND IMPACT ON WATERCOURSES WEST HERZEGOVINA COUNTY (BiH) Project developer: Association for Development, Environment and Culture EKO ZH NGO Our Action WILD LANDFILLS AND IMPACT ON WATERCOURSES IPA – Cross - border cooperation program BiH - Montenegro Project YOUth Drive – Program for raising awareness on proper waste management and empowering legislators for taking action Program for raising awareness on proper waste management and empowering legislators for taking action Project developer: Association for Development, Environment and Culture EKO ZH NGO Our Action Expert team for the study: TEHNOZAŠTITA d.o.o. Mostar Project manager: M.sc. Radoslav Udovičić, dig Designers and collaborators: Assoc. prof. Ph.D Željko Rozić, dig Jure Udovičić, dig Selma Mrgan, dig September, 2020. "This publication was made with the help of the European Union. The content of this publication is the exclusive responsibility of the Association for the Development, Environment and Culture of EKO ZH and NGO Our Action, and does not necessarily represent the views of the European Union. 2 WEST HERZEGOVINA COUNTY (BiH) CONTENT 1. REVIEW OF THE CURRENT SITUATION .........................................................................................................5 1.1. Introduction – West Herzegovina County ................................................................................................... 5 1.2. Natural characteristics ......................................................................................................................................... -
Factors Affecting the Distribution of Two Synechococcus Ecotypes in the Coastal Adriatic Sea
ISSN: 0001-5113 ACTA ADRIAT., ORIGINAL SCIENTIFIC PAPER AADRAY 59(1): 51 - 60, 2018 Factors affecting the distribution of two Synechococcus ecotypes in the coastal Adriatic Sea Danijela ŠANTIĆ1, Mladen ŠOLIĆ1, Ivana MARIN1, Ana VRDOLJAK1*, Grozdan KUŠPILIĆ1 and Živana NINČEVIĆ GLADAN1 1Institute of Oceanography and Fisheries, P.O. Box 500, 21000 Split, Croatia * Corresponding author: e-mail: [email protected] Distribution and abundance of two Synechococcus ecotypes, phycocyanin-rich cells (PC-SYN) and phycoerythrin-rich cells (PE-SYN) were studied in the surface layer of the central Adriatic Sea during the 2015-2016 period. The studied area included several estuarine areas, and coastal to open sea trophic gradients, covering a wide range of seawater temperatures (11.82 - 20.75oC), salinity (4.47 - 38.84) and nutrient concentration. The abundance of PC-SYN ranged from 0 to 79.79 x 103 cell mL-1 and that of PE-SYN from 5.01 x 103 to 76.74 x 103 cell mL-1. Both ecotypes coexisted in the studied waters with PC-SYN cells dominating during spring and PE-SYN during winter and autumn. PC-SYN showed a significant positive relationship with temperature and strong positive responses to nitrogen nutrients, whereas PE-SYN positively responded to phosphate availability. The relative ratio of phosphorus availability and total inorganic nitrogen nutrients (N/P ratio) affects the spatial distribution of the two Synechococcus ecotypes. Key words: phycocyanin-rich cells, phycoerythrin-rich cells, nitrogen, phosphorus, trophic status INTRODUCTION from turbid coastal waters to the most transpar- ent waters of the open ocean (OLSON et al., 1990; The marine cyanobacteria Synechococcus WOOD et al., 1998; HAVERKAMP et al., 2008). -
Spawning Behaviour and the Softmouth Trout Dilemma
Arch. Pol. Fish. (2014) 22: 159-165 DOI 10.2478/aopf-2014-0016 RESEARCH ARTICLE Spawning behaviour and the softmouth trout dilemma Manu Esteve, Deborah Ann McLennan, John Andrew Zablocki, Gašper Pustovrh, Ignacio Doadrio Received – 05 November 2013/Accepted – 26 February 2014. Published online: 30 June 2014; ©Inland Fisheries Institute in Olsztyn, Poland Citation: Esteve M., McLennan D.A., Zablocki J.A., Pustovrh G., Doadrio I. 2014 – Spawning behaviour and the softmouth trout dilemma – Arch. Pol. Fish. 22: 159-165. Abstract. Morphological, ecological and molecular data sets nest digging behaviour-widespread in all the salmonines, do not completely agree on the phylogenetic placement of the including softmouths, they seem to be mal-adaptive. softmouth trout, Salmo (Salmothymus) obtusirostris (Heckel). Molecules posit that softmouths are closely related to brown Keywords: phylogeny, spawning behavior, underwater trout, Salmo trutta L. while some morphological, ecological video and life history traits place them in the most basal position of the Salmoninae subfamily between grayling (Thymallus) and lenok (Brachymystax). Here we add an additional source of data, behavioural characters based on the first reported Introduction observations of softmouth spawning. During spawning softmouth females present three important behaviours not The softmouth trout, also known as the Adriatic found in the other Salmo members: they continually abandon trout, Salmo (Salmothymus) obtusirostris (Heckel), is their nests, rarely staying on them for periods over nine a cold freshwater salmonid found naturally in only minutes; they expel different batches of eggs at the same nest five river drainages of the Adriatic Sea: the Vrljika, at intervals of several minutes; and they do not cover their eggs immediately after spawning. -
Baseline Assessment of the Lake Ohrid Region - Albania
TOWARDS STRENGTHENED GOVERNANCE OF THE SHARED TRANSBOUNDARY NATURAL AND CULTURAL HERITAGE OF THE LAKE OHRID REGION Baseline Assessment of the Lake Ohrid region - Albania IUCN – ICOMOS joint draft report January 2016 Contents ........................................................................................................................................................................... i A. Executive Summary ................................................................................................................................... 1 B. The study area ........................................................................................................................................... 5 B.1 The physical environment ............................................................................................................. 5 B.2 The biotic environment ................................................................................................................. 7 B.3 Cultural Settings ............................................................................................................................ 0 C. Heritage values and resources/ attributes ................................................................................................ 6 C.1 Natural heritage values and resources ......................................................................................... 6 C.2 Cultural heritage values and resources....................................................................................... 12 D. -
Aquatic Molluscs of the Mrežnica River
NAT. CROAT. VOL. 28 No 1 99-106 ZAGREB June 30, 2019 original scientific paper / izvorni znanstveni rad DOI 10.20302/NC.2019.28.9 AQUATIC MOLLUSCS OF THE MREŽNICA RIVER Luboš Beran Nature Conservation Agency of the Czech Republic, Regional Office Kokořínsko – Máchův kraj Protected Landscape Area Administration, Česká 149, CZ–276 01 Mělník, Czech Republic (e-mail: [email protected]) Beran, L.: Aquatic molluscs of the Mrežnica River. Nat. Croat. Vol. 28, No. 1., 99-106, Zagreb, 2019. Results of a malacological survey of the Mrežnica River are presented. The molluscan assemblages of this river between the boundary of the Eugen Kvarternik military area and the inflow to the Korana River near Karlovac were studied from 2013 to 2018. Altogether 29 aquatic molluscs (19 gastropods, 10 bivalves) were found at 9 sites. Theodoxus danubialis, Esperiana esperi, Microcolpia daudebartii and Holandriana holandrii were dominant at most of the sites. The molluscan assemblages were very similar to assemblages documented during previous research into the Korana River. The populations of the endangered bivalves Unio crassus and Pseudanodonta complanata were recorded. An extensive population of another endangered gastropod Anisus vorticulus was found at one site. Physa acuta is the only non-native species confirmed in the Mrežnica River. Key words: Mollusca, Unio crassus, Anisus vorticulus, Mrežnica, faunistic, Croatia Beran, L.: Vodeni mekušci rijeke Mrežnice. Nat. Croat. Vol. 28, No. 1., 99-106, Zagreb, 2019. U radu su predstavljeni rezultati malakološkog istraživanja rijeke Mrežnice. Sastav mekušaca ove rijeke proučavan je na području od Vojnog poligona Eugen Kvarternik do njenog utoka u Koranu blizu Karlovca, u razdoblju 2013. -
Article N° 09 Conf. CM², Split, Croatie, 2017
Conférence Méditerranéenne Côtière et Maritime EDITION 4, SPLIT, CROATIA (2017) Coastal and Maritime Mediterranean Conference Disponible en ligne – http://www.paralia.fr – Available online Adriatic karstic estuaries, their characteristics and evolution Mladen JURAČIĆ 1 1. University of Zagreb, Faculty of Science, Department of Geology, Horvatovac 102a, 10 000 Zagreb, Croatia. [email protected] Abstract: The coastal area of the eastern Adriatic is characterized with a prevalence of carbonate rocks and well-developed karst. Present freshwater input into the Adriatic is quite large, mostly through coastal and submarine springs. However, there are also a number of rivers debouching in the Adriatic from the eastern coast. Most of them have canyon like fluviokarstic valleys that were carved dominantly during Pleistocene and were drowned during post-LGM sea-level rise forming estuaries. These estuaries are filled to a different extent during Holocene highstand (last 7.500 years). The intraestuarine delta progradation is rather different in those estuaries depending on the quantity of the river- borne material. Human impact on progradation rate in some of the estuaries has been shown. Keywords: Estuaries, Sedimentation, Intraestuarine delta, Progradation, Allogenic river, Anthopo- genic influence. https://dx.doi.org/10.5150/cmcm.2017.009 45 Mediterranean rocky coasts: Features, processes, evolution and problems 1. Introduction Eastern Adriatic coastal area is formed predominantly in Mesozoic carbonate rocks with well-developed karst (PIKELJ & JURAČIĆ, 2013). Due to prevalent humid climatic conditions and karst maturation present freshwater input into the Adriatic is large, mostly through coastal and submarine springs (vruljas). However, there are also a number of rivers debouching into the Adriatic. -
Genetika 2006
GENETIKA 2006 September, 28th – October, 1st, 2006 Biološko središče, Večna pot 111, Ljubljana 4th Congress of Slovenian Genetic Society and 2nd Meeting of The Slovenian Society of Human Genetics with International Participation IV. Kongres Slovenskega genetskega društva in II. srečanje Slovenskega društva za humano genetiko z mednarodno udeležbo Genetika 2006 4th Congress of Slovenian Genetic Society and 2nd meeting of The Slovenian Society of Human Genetics with inter- national participation / IV. Kongres Slovenskega genetskega društva in II. srečanje Slovenskega društva za humano genetiko, z mednarodno udeležbo Edited by / Uredili: Metka Filipič in Irena Zajc Editorial Board / Uredniški odbor: Branka Javornik, Metka Filipič, Gregor Anderluh, Milena Kovač, Peter Dovč, Irena Mlinarič Raščan, Damjan Glavač, Uroš Potočnik, Nadja Kokalj Vokač, Darja Žgur Bertok, Metka Ravnik Glavač Design & Layout / Oblikovanje & Prelom: Jure Filipič Printed by / Tisk: Birotisk d.o.o., Ljubljana Number of copies / Naklada 250 Published by / Izdal: Slovensko Genetsko Društvo, Ljubljana, September 2006 The contents and language of the abstracts is responsibility of the authors. / Za vsebino in jezik povzetkov odgovarjajo avtorji. CIP - Kataložni zapis o publikaciji Narodna in univerzitetna knjižnica, Ljubljana 575(063) SLOVENSKO genetsko društvo. Kongres (4 ; 2006 ; Ljubljana) Book of abstract = Knjiga povzetkov / 4th Congress of Slovenian Genetic Society and 2nd Meeting of the Slovenian Society of Human Genetics with International Participation = IV. kongres Slovenskega genetskega društva in II. srečanje Slovenskega društva za humano genetiko, z mednarodno udeležbo ; [edited by Metka Filipič in Irena Zajc]. - Ljubljana : Slovensko genetsko društvo, 2006 ISBN-10 961-90534-4-3 ISBN-13 978-961-90534-4-7 1. Filipič, Metka, 1954- 2. -
Groundwater Bodies at Risk
Results of initial characterization of the groundwater bodies in Croatian karst Zeljka Brkic Croatian Geological Survey Department for Hydrogeology and Engineering Geology, Zagreb, Croatia Contractor: Croatian Geological Survey, Department for Hydrogeology and Engineering Geology Team leader: dr Zeljka Brkic Co-authors: dr Ranko Biondic (Kupa river basin – karst area, Istria, Hrvatsko Primorje) dr Janislav Kapelj (Una river basin – karst area) dr Ante Pavicic (Lika region, northern and middle Dalmacija) dr Ivan Sliskovic (southern Dalmacija) Other associates: dr Sanja Kapelj dr Josip Terzic dr Tamara Markovic Andrej Stroj { On 23 October 2000, the "Directive 2000/60/EC of the European Parliament and of the Council establishing a framework for the Community action in the field of water policy" or, in short, the EU Water Framework Directive (or even shorter the WFD) was finally adopted. { The purpose of WFD is to establish a framework for the protection of inland surface waters, transitional waters, coastal waters and groundwater (protection of aquatic and terrestrial ecosystems, reduction in pollution groundwater, protection of territorial and marine waters, sustainable water use, …) { WFD is one of the main documents of the European water policy today, with the main objective of achieving “good status” for all waters within a 15-year period What is the groundwater body ? { “groundwater body” means a distinct volume of groundwater within an aquifer or aquifers { Member States shall identify, within each river basin district: z all bodies of water used for the abstraction of water intended for human consumption providing more than 10 m3 per day as an average or serving more than 50 persons, and z those bodies of water intended for such future use. -
Water Supply System of Diocletian's Palace in Split - Croatia
Water supply system of Diocletian's palace ın Split - Croatia K. Marasović1, S. Perojević2 and J. Margeta 3 1University of Split, Faculty of Civil Engineering Architecture and Geodesy 21000 Split, Matice Hrvatske 15, Croatia; [email protected]; phone : +385 21 360082; fax: +385 21 360082 2University of Zagreb, Faculty of Architecture, Mediterranean centre for built heritage 21000 Split, Bosanska 4, Croatia; [email protected]; phone : +385 21 360082; fax: +385 21 360082 3University of Split, Faculty of Civil Engineering Architecture and Geodesy 21000 Split, Matice Hrvatske 15, Croatia; [email protected]; phone : +385 21 399073; fax: +385 21 465117 Abstract Roman water supply buildings are a good example for exploring the needs and development of infrastructure necessary for sustainable living in urban areas. Studying and reconstructing historical systems contributes not only to the preservation of historical buildings and development of tourism but also to the culture of living and development of hydrotechnical profession. This paper presents the water supply system of Diocletian's Palace in Split. It describes the 9.5 km long Roman aqueduct, built at the turn of 3rd century AD. It was thoroughly reconstructed in the late 19th century and is still used for water supply of the city of Split. The fact that the structure was built 17 centuries ago and is still technologically acceptable for water supply, speaks of the high level of engineering knowledge of Roman builders. In the presentation of this structure this paper not only departs from its historical features, but also strives to present its technological features and the possible construction technology. -
Olm, Proteus Anguinus
Olm, Proteus anguinus Compiler: Jelić, D. Contributors: Jelić, D.; Jalžić, B.; Kletečki, E.; Koller, K.; Jalžić, V.; Kovač-Konrad, P. Suggested citation: Jelić, D. (2014): A survival blueprint for the olm, Proteus anguinus. Croatian Institute for Biodiversity, Croatian Herpetological Society, Zagreb, Croatia. 1. STATUS REVIEW 1.1 Taxonomy: Chordata > Amphibia > Caudata > Proteidae > Proteus > anguinus Most populations are assigned to the subterranean subspecies Proteus anguinus anguinus. Unlike the nominate form, the genetically similar subspecies P.a. parkelj from Bela Krajina in Slovenia is pigmented and might represent a distinct species, although a recent genetic study suggests that the two subspecies are poorly differentiated at the molecular level and may not even warrant subspecies status (Goricki and Trontelj 2006). Isolated populations from Istria peninsula in Croatia are genetically and morphologically differentiated as separate unnamed taxon (Goricki and Trontelj 2006). Croatian: Čovječja ribica English: Olm, Proteus, Cave salamander French: Protee Slovenian: Čovješka ribica, močeril German: Grottenolm 1.2 Distribution and population status: 1.2.1 Global distribution: Country Population Distribution Population trend Notes estimate (plus references) (plus references) Croatia 68 localities (Jelić 3 separate Decline has been et al. 2012) subpopulations: observed through Istria, Gorski devastation of kotar and several cave Dalmatia systems in all regions (Jelić et al. 2012) Italy 29 localities (Sket Just the A decline has been 1997) easternmost observed in the region around population of Trieste, Gradisce Goriza (Italy) (Gasc and Monfalcone et al. 1997). Slovenia 158 localities 4 populations A decline has been (Sket 1997) distributed from observed in the Vipava river in the population in west (border with Postojna (Slovenia) Italy) to Kupa (Gasc et al. -
(Annelida : Clitellata) on Freshwater Crayfish in Croatia
Ann. Limnol. - Int. J. Lim. 2006, 42 (4), 251-260 Occurrence of Branchiobdellida (Annelida : Clitellata) on freshwater crayfish in Croatia G.I.V. Klobucar√1*, I. Maguire1, S. Gottstein1, S. R. Gelder2 1 Department of Zoology, Faculty of Science, University of Zagreb, Rooseveltov trg 6, 10000 Zagreb, Croatia 2 Department of Science and Math, University of Maine at Presque Isle, 181 Maine Street, Maine 04769, USA There is very little information on the genus Branchiobdella and the species relationships with their freshwater crayfish hosts in Croatia. Therefore, a base-line study was needed so that future changes in available habitat brought about by urban development and the probable introduction of non-native species can be accurately assessed. This investigation used preserved freshwater crayfish collected from across Croatia between 1995 and 2005 as its source of the ectosymbionts. Crayfish species included Astacus astacus, A. leptodactylus, Austropotamobius pallipes, A. torrentium, and the allochtonous North American species, Orconectes limosus. Only native European species of branchiobdellids were found: Branchiobdella astaci, B. parasita, B. pentodonta, B. hexodonta, B. italica, and B. balcanica, and this is the first report on the occurrence of these species, apart from B. italica, in Croatia. The distribution of these branchiobdellidans is compared with climatic and river drainage systems, and literature reports of populations in other countries in the region. Keywords: Branchiobdellidans, distribution, epibionts, freshwater crayfish, Croatia. Introduction stated the name balcanica due to its seniority over Pop’s (1965) proposed orientalis. At the higher taxonomic Branchiobdellidans are ectosymbiotic clitellate anne- level we have followed the common naming convention lids living primarily on freshwater astacoidean crayfish used in Brinkhurst and Gelder (2001) that uses bran- (Brinkhurst & Gelder 2001). -
Inland Treasures of Croatia
Inland treasures of Croatia Full of inspiration Don’t fill your life with days, fill your days with life. photos by zoran jelača Discover your story at croatia.hr CroatiaInland Treasures KOPAčKI RIT | 4-7 VUKOVAR | 8-11 FROM ILOK TO VUKOVAR | 12-15 EASTERN CROATIA | 16-19 PAPUK | 20-23 POŽEGA | 24-27 LONJSKO POLJE | 28-31 MOSLAVAČKA GORA | 32-33 MEĐIMURJE | 34-37 CYCLING TOURISM | 38-41 VARAŽDIN | 42-45 CASTLES OF ZAGORJE | 46-49 HEALTH TOURISM | 50-51 MEDVEDNICA | 52-55 ZAGREB | 56-59 KARLOVAC | 60-63 AQUATIKA | 64-67 GORSKI KOTAR | 68-71 VIA ADRIATICA | 72-75 Over UčKA MOUNTAIN | 76-77 ISTRIA BY BIKE | 78-81 THE UNA RIVER | 82-83 LIKA | 84-87 VELEBIT | 89-93 THE ZRMANJA AND THE KruPA | 94-95 SINJ | 96-99 IMOTSKI | 100-103 NeretvA RIVER PARADISE | 104-107 LIST OF REPRESENTATIVE OffICES | 108 2 Introduction Croatia hides a secret. A secret that deserves to be revealed. Hidden in the obvious and ready for you. If you really think you deserve a vacation other than the sea or skiing, we suggest that after the daily stresses, the rush and the constant commitment, you finally decide to replace the stone and the sea, the holm oaks and the pines with the shade of Slavonian oak, the ash, the thick forest arch of Gorski Kotar, the greenery of Međimurje... Head, therefore, to that part of our country which is within our reach, green and flat or hilly and golden in its summer or autumn colors, and yet mostly distant and unknown to the most.