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Sharks in Crisis: a Call to Action for the Mediterranean
REPORT 2019 SHARKS IN CRISIS: A CALL TO ACTION FOR THE MEDITERRANEAN WWF Sharks in the Mediterranean 2019 | 1 fp SECTION 1 ACKNOWLEDGEMENTS Written and edited by WWF Mediterranean Marine Initiative / Evan Jeffries (www.swim2birds.co.uk), based on data contained in: Bartolí, A., Polti, S., Niedermüller, S.K. & García, R. 2018. Sharks in the Mediterranean: A review of the literature on the current state of scientific knowledge, conservation measures and management policies and instruments. Design by Catherine Perry (www.swim2birds.co.uk) Front cover photo: Blue shark (Prionace glauca) © Joost van Uffelen / WWF References and sources are available online at www.wwfmmi.org Published in July 2019 by WWF – World Wide Fund For Nature Any reproduction in full or in part must mention the title and credit the WWF Mediterranean Marine Initiative as the copyright owner. © Text 2019 WWF. All rights reserved. Our thanks go to the following people for their invaluable comments and contributions to this report: Fabrizio Serena, Monica Barone, Adi Barash (M.E.C.O.), Ioannis Giovos (iSea), Pamela Mason (SharkLab Malta), Ali Hood (Sharktrust), Matthieu Lapinksi (AILERONS association), Sandrine Polti, Alex Bartoli, Raul Garcia, Alessandro Buzzi, Giulia Prato, Jose Luis Garcia Varas, Ayse Oruc, Danijel Kanski, Antigoni Foutsi, Théa Jacob, Sofiane Mahjoub, Sarah Fagnani, Heike Zidowitz, Philipp Kanstinger, Andy Cornish and Marco Costantini. Special acknowledgements go to WWF-Spain for funding this report. KEY CONTACTS Giuseppe Di Carlo Director WWF Mediterranean Marine Initiative Email: [email protected] Simone Niedermueller Mediterranean Shark expert Email: [email protected] Stefania Campogianni Communications manager WWF Mediterranean Marine Initiative Email: [email protected] WWF is one of the world’s largest and most respected independent conservation organizations, with more than 5 million supporters and a global network active in over 100 countries. -
Endoparasitic Helminths of the Whitespotted Rabbitfish
Belg. J. Zool. - Volume 126 ( 1996) - 1ssue 1 - pages 21-36 - Brussels 1996 Received : 13 September 1995 ENDOPARASITIC HELMINTHS OF THE WHITESPOTTED RABBITFISH (SIGANUS SUTOR (Valenciennes,1835)) OF THE KENYAN COAST: DISTRIBUTION WITHIN THE HOST POPULATION AND MICROHABITAT USE ALD EGONDA GEETS AND FRAN S OLLEVIER La bora tory for Ecolo gy and Aquaculture, Zoological lnstitute, Catholic University of Leuven, Naamsestraat 59, B-3000 Leuven (Belgiwn) Summary. The parasitic fatma of the alimentary tract of adult whi tespotted rabbitfish, Siganus sutor, sampled in December 1990 at the Kenyan coast, was in vestigated. Fi ve endoparasites were fo und: the di genean trematodes Opisthogonoporoides hanwnanthai, Gyliauchen papillatus and 1-/exan.gium sigani, the acanthocephalan Sclerocollum rubrimaris and th e nematode Procamm.alanus elatensis. No uninfected fish, nor single species infections occurred. Parasite population data showed ve1y hi gh prevalences for ali endoparasites, ranging from 68. 18 % to 100 %. G. papi/lat us occurred with the hi ghest mean intensity, 201.68 ± 12 .54 parasites per infected fi sb. The parasites were over di spersed within their host's population and frequency distributions generall y fitted the n egative binomial function. The relationship between host size and parasite burden showed that smaller fish were more heavil y infected. The infection with O. hanumanthai and H. sigani decreased significant ly with total length of S. su tor. Study of th e associations between parasites showed that the iutensi ties of the three digenean species were significantly positi ve!y correlated. Possible transmi ssion stra tegies of the di genea and impact of the feeding habits of S. -
Molecular Circumscription of New Species of Gyrocotyle Diesing, 1850 (Cestoda) from Deep-Sea Chimaeriform Holocephalans in the North Atlantic
Title Molecular circumscription of new species of Gyrocotyle Diesing, 1850 (Cestoda) from deep-sea chimaeriform holocephalans in the North Atlantic Authors Bray, RA; Waeschenbach, A; Littlewood, T; Halvorsen, O; Olson, PD Date Submitted 2020-06-11 Syst Parasitol https://doi.org/10.1007/s11230-020-09912-w (0123456789().,-volV)(0123456789().,-volV) Molecular circumscription of new species of Gyrocotyle Diesing, 1850 (Cestoda) from deep-sea chimaeriform holocephalans in the North Atlantic Rodney A. Bray . Andrea Waeschenbach . D. Timothy J. Littlewood . Odd Halvorsen . Peter D. Olson Received: 14 November 2019 / Accepted: 1 March 2020 Ó The Author(s) 2020 Abstract Chimaeras, or ratfishes, are the only extant and their specific host associations has remained group of holocephalan fishes and are the sole host highly speculative. Here we report the presence of group of gyrocotylidean cestodes, which represent a Gyrocotyle spp. from rarely-caught deep-sea chi- sister group of the true tapeworms (Eucestoda). These maeras collected in the North-East Atlantic, and unique, non-segmented cestodes have been known describe two new species: G. haffii n. sp. from the since the 1850s and multiple species and genera have bent-nose chimaera, Harriota raleighana Goode & been erected despite a general agreement that the Bean, and G. discoveryi n. sp. from the large-eyed delineation of species on the basis of morphology is rabbit fish, Hydrolagus mirabilis (Collett). Nuclear effectively impossible. Thus, in the absence of ribosomal sequence data were generated for individual molecular studies, the validity of gyrocotylid taxa parasites taken from different host species collected on different dates and from different localities and were combined with previously published sequences. -
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. -
A Preliminary Study on the Reproduction of the Rabbitfish (Siganus Rivulatus (Forsskal, 1775)) in the Northeastern Mediterranean
Turk J Zool 24 (2000) 173–182 © TÜBİTAK A Preliminary Study on the Reproduction of the Rabbitfish (Siganus rivulatus (Forsskal, 1775)) in the Northeastern Mediterranean Hacer YELDAN, Dursun AVŞAR Fisheries Faculty, Çukurova University, P.O. Box 173, Tr 01330 Balcalı, Adana-TURKEY Received: 23.03.1999 Abstract: This study was carried out to identify some aspects of the reproductive cycle of the rabbitfish (Siganus rivulatus) inhabiting the northeastern Mediterranean. For this reason, monthly sampling was conducted between February 1995 and June 1996, and a total of 473 specimens were used. By using the monthly changes in the values of the gonadosomatic index (GSI) and Condition Factor (K), it was found that their reproduction takes place during July and August. The mean diameter of ripe gonadal eggs was 0.44 mm; and mean fecundity and its standard deviation was found to be 434761±181006. Fecundity-total length, fecundity-total weight and fecundity-age relationships were also estimated using regression analysis as follows: Total Length (cm) F= 0.49 * L4.61 (r= 0.96) Total Weight (g) F= -57584.67 + 4851.96 * W (r= 0.96) Age (years) F= -1029631.33 + 255261.18 * A (r= 0.64) Key Words: Northeastern Mediterranean, Rabbitfish (Siganus rivulatus), Reproduction. Kuzeydoğu Akdeniz’deki Sokar Balığı (Siganus rivulatus (Forsskal, 1775))’nın Üremesi Üzerine Bir Ön Çalışma Özet: Bu çalışma, kuzeydoğu Akdeniz’deki Sokar balıkları (Siganus rivulatus)’nın bazı üreme özelliklerini belirlemek amacıyla gerçekleştirildi. Bunun için Şubat 1995-Haziran 1996 tarihleri arasında aylık olarak örnekleme çalışmaları yapıldı ve toplam 473 adet örnek kullanıldı. Ortalama Gonadosomatik İndeks (GSI) değerleri ile Kondisyon Faktörü (K)’nün aylık değişimleri kullanılarak, sokar balıklarında üremenin Temmuz-Ağustos arasında gerçekleştiği saptandı. -
DEEP SEA LEBANON RESULTS of the 2016 EXPEDITION EXPLORING SUBMARINE CANYONS Towards Deep-Sea Conservation in Lebanon Project
DEEP SEA LEBANON RESULTS OF THE 2016 EXPEDITION EXPLORING SUBMARINE CANYONS Towards Deep-Sea Conservation in Lebanon Project March 2018 DEEP SEA LEBANON RESULTS OF THE 2016 EXPEDITION EXPLORING SUBMARINE CANYONS Towards Deep-Sea Conservation in Lebanon Project Citation: Aguilar, R., García, S., Perry, A.L., Alvarez, H., Blanco, J., Bitar, G. 2018. 2016 Deep-sea Lebanon Expedition: Exploring Submarine Canyons. Oceana, Madrid. 94 p. DOI: 10.31230/osf.io/34cb9 Based on an official request from Lebanon’s Ministry of Environment back in 2013, Oceana has planned and carried out an expedition to survey Lebanese deep-sea canyons and escarpments. Cover: Cerianthus membranaceus © OCEANA All photos are © OCEANA Index 06 Introduction 11 Methods 16 Results 44 Areas 12 Rov surveys 16 Habitat types 44 Tarablus/Batroun 14 Infaunal surveys 16 Coralligenous habitat 44 Jounieh 14 Oceanographic and rhodolith/maërl 45 St. George beds measurements 46 Beirut 19 Sandy bottoms 15 Data analyses 46 Sayniq 15 Collaborations 20 Sandy-muddy bottoms 20 Rocky bottoms 22 Canyon heads 22 Bathyal muds 24 Species 27 Fishes 29 Crustaceans 30 Echinoderms 31 Cnidarians 36 Sponges 38 Molluscs 40 Bryozoans 40 Brachiopods 42 Tunicates 42 Annelids 42 Foraminifera 42 Algae | Deep sea Lebanon OCEANA 47 Human 50 Discussion and 68 Annex 1 85 Annex 2 impacts conclusions 68 Table A1. List of 85 Methodology for 47 Marine litter 51 Main expedition species identified assesing relative 49 Fisheries findings 84 Table A2. List conservation interest of 49 Other observations 52 Key community of threatened types and their species identified survey areas ecological importanc 84 Figure A1. -
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. -
Solomon Islands Marine Life Information on Biology and Management of Marine Resources
Solomon Islands Marine Life Information on biology and management of marine resources Simon Albert Ian Tibbetts, James Udy Solomon Islands Marine Life Introduction . 1 Marine life . .3 . Marine plants ................................................................................... 4 Thank you to the many people that have contributed to this book and motivated its production. It Seagrass . 5 is a collaborative effort drawing on the experience and knowledge of many individuals. This book Marine algae . .7 was completed as part of a project funded by the John D and Catherine T MacArthur Foundation Mangroves . 10 in Marovo Lagoon from 2004 to 2013 with additional support through an AusAID funded community based adaptation project led by The Nature Conservancy. Marine invertebrates ....................................................................... 13 Corals . 18 Photographs: Simon Albert, Fred Olivier, Chris Roelfsema, Anthony Plummer (www.anthonyplummer. Bêche-de-mer . 21 com), Grant Kelly, Norm Duke, Corey Howell, Morgan Jimuru, Kate Moore, Joelle Albert, John Read, Katherine Moseby, Lisa Choquette, Simon Foale, Uepi Island Resort and Nate Henry. Crown of thorns starfish . 24 Cover art: Steven Daefoni (artist), funded by GEF/IWP Fish ............................................................................................ 26 Cover photos: Anthony Plummer (www.anthonyplummer.com) and Fred Olivier (far right). Turtles ........................................................................................... 30 Text: Simon Albert, -
Comparative Study on Morphometric Relationships and Condition Factor of Siganus Rivulatus Inhabits the Red Sea, Suez Canal and the Mediterranean Sea, Egypt
Egyptian Journal of Aquatic Biology & Fisheries Zoology Department, Faculty of Science, Ain Shams University, Cairo, Egypt. ISSN 1110 – 6131 Vol. 24(7): 955- 972 (2020) www.ejabf.journals.ekb.eg Comparative study on morphometric relationships and condition factor of Siganus rivulatus inhabits the Red Sea, Suez Canal and the Mediterranean Sea, Egypt Elham M. Abdelhak1,*, Azza A. El Ganainy2, Fedekar F. Madkour1, Mohamed A. Abu El-Regal 1&3, Mohamed I. Ahmed4 1. Department of Marine Science, Faculty of Science, Port-Said University, Egypt. 2. National Institute of Oceanography and Fisheries, Suez, Egypt. 3. Marine Biology Department, Faculty of Marine Science, King Abdul-Aziz University-80207, Jeddah, Kingdom of Saudi Arabia. (present address) 4. Department of Marine Science, Faculty of Science, Suez Canal University, Egypt. *Corresponding author: [email protected] ARTICLE INFO ABSTRACT Article History: Siganus rivulatus is one of the most successful Lessipsian migrant fish from Received: Nov. 12, 2020 the Red Sea to the Mediterranean Sea through Suez Canal. In the present study, a Accepted: Dec. 9, 2020 comparison between the populations in native and new habitats was estimated based Online: on morphometric characters, meristic count and condition of the fish. A total of 1741 _______________ individuals of S. rivulatus (334 from Red Sea; Hurghada, 581 from Suez Canal; Ismailia and 826 from Mediterranean; Port-Said) were collected seasonally from Keywords: autumn 2017 to summer 2018. The total length (TL) fluctuated between 14-28cm in Lessepsian migration, Red Sea with mode at length-class 16-16.9cm (14.37%), while TL in Suez Canal and Siganus rivulatus, Mediterranean ranged from 8 to 22cm, the mode was 10-10.9cm (25.3%) and 12- Morphometry, 12.9cm (15.25%), respectively. -
Accepted Manuscript
ACCEPTED MANUSCRIPT miR-24 is involved in vertebrate LC-PUFA biosynthesis as demonstrated in marine teleost Siganus canaliculatus Cuiying Chen1#, Shuqi Wang1#, Mei Zhang1, Baojia Chen1, Cuihong You1, Dizhi Xie2, Yang Liu1, Óscar Monroig3, Douglas R. Tocher4, Khor Waiho1, Yuanyou Li2* 1 Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou 515063, China. 2 College of Marine Sciences, South China Agricultural University, Guangzhou 510642, China. 3 Instituto de Acuicultura Torre de la Sal, Consejo Superior de Investigaciones Científicas (IATS-CSIC), 12595 Ribera de Cabanes, Castellón, Spain 4 Institute of Aquaculture, Faculty of Natural Sciences, University of Stirling, Stirling FK9 4LA, Scotland, UK. Present address: College of Marine Sciences, South China Agricultural University, 483 Wushan Road, Guangzhou 510642, China ACCEPTED MANUSCRIPT # These authors contributed equally to this work. * To whom correspondence should be addressed. Email: [email protected]; tel/fax number: +86 20 85283529. 1 ACCEPTED MANUSCRIPT ABSTRACT Recently, microRNAs (miRNAs) have emerged as crucial regulators of lipid metabolism. However, the miRNA-mediated regulatory mechanism on long-chain (≥C20) polyunsaturated fatty acids (LC-PUFA) biosynthesis in vertebrates remains largely unknown. Here, we address a potentially important role of miRNA-24 (miR-24) in the regulation of LC-PUFA biosynthesis in rabbitfish Siganus canaliculatus. miR-24 showed significantly higher abundance in liver of rabbitfish reared in brackish water than in seawater for fish fed vegetable oil diets and in S. canaliculatus hepatocyte line (SCHL) cells incubated with alpha-linolenic acid (ALA) than the control group. Similar expression patterns were also observed on the expression of sterol regulatory element-binding protein-1 (srebp1) and LC-PUFA biosynthesis related genes. -
Bioinvasions in the Mediterranean Sea 2 7
Metamorphoses: Bioinvasions in the Mediterranean Sea 2 7 B. S. Galil and Menachem Goren Abstract Six hundred and eighty alien marine multicellular species have been recorded in the Mediterranean Sea, with many establishing viable populations and dispersing along its coastline. A brief history of bioinvasions research in the Mediterranean Sea is presented. Particular attention is paid to gelatinous invasive species: the temporal and spatial spread of four alien scyphozoans and two alien ctenophores is outlined. We highlight few of the dis- cernible, and sometimes dramatic, physical alterations to habitats associated with invasive aliens in the Mediterranean littoral, as well as food web interactions of alien and native fi sh. The propagule pressure driving the Erythraean invasion is powerful in the establishment and spread of alien species in the eastern and central Mediterranean. The implications of the enlargement of Suez Canal, refl ecting patterns in global trade and economy, are briefl y discussed. Keywords Alien • Vectors • Trends • Propagule pressure • Trophic levels • Jellyfi sh • Mediterranean Sea Brief History of Bioinvasion Research came suddenly with the much publicized plans of the in the Mediterranean Sea Saint- Simonians for a “Canal de jonction des deux mers” at the Isthmus of Suez. Even before the Suez Canal was fully The eminent European marine naturalists of the sixteenth excavated, the French zoologist Léon Vaillant ( 1865 ) argued century – Belon, Rondelet, Salviani, Gesner and Aldrovandi – that the breaching of the isthmus will bring about species recorded solely species native to the Mediterranean Sea, migration and mixing of faunas, and advocated what would though mercantile horizons have already expanded with be considered nowadays a ‘baseline study’. -
Investigation of the Implications of Different Reef Fish Life History Strategies on Fisheries Management, Final Technical
Investigation of the implications of different reef fish life history strategies on fisheries management Final Technical Report 10 50 8 6 40 4 30 Frequency 2 20 Fork Length (cm) 0 10 25 27 29 31 33 35 37 39 41 43 45 Total Length (cm) 0 0 2 4 6 8 10 12 14 16 Age (yrs) Back-calculated Individual length at age Observed data Assessment Management Advice Biological Fishery Fishery Management Sampling Sampling Regulations Catch Growth Natural Recruitment Mortality Operating model August 2004 Front cover: Length-based and age-based assessment methods for Lethrinus mahsena (left) and Siganus sutor (right). Images available from Fishbase: www.fishbase.org (Froese and Pauly, 2000) Document to be cited as: Wakeford, R.C., Pilling, G.M., O’Neill, C.J. and A. Hine. (2004). Investigation of the implications of different reef fish life history strategies on fisheries management. FMSP Final Tech. Rep. MRAG, London. 139pp. Final Report – Administrative Details DATE COMPLETED: 31/03/2004 TITLE OF PROJECT R7835: Investigation of the implications of different reef fish life history strategies on fisheries management PROGRAMME MANAGER / Professor John Beddington INSTITUTION MRAG Ltd 47 Prince’s Gate London SW7 2QA FROM TO REPORTING PERIOD 01/04/2001 31/03/2004 AUTHORS OF THIS REPORT Dr Robert Wakeford, Dr Graham Pilling, Mrs Catherine O’Neill, Mr Adrian Hine R7835 Effects of fish life history strategies on management Page i Page ii R7835 Effects of fish life history strategies on management Acknowledgments Thanks go to Dr Geoff Kirkwood and Dr Chris Mees for their helpful consultations during the project and Dr Ashley Halls for his assistance in part of the analyses.