DOCSLIB.ORG

Catches, Fishing Efforts, Catches Per Fishing Effort, and Fishing Locations

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Catches, Fishing Efforts, Catches Per Fishing Effort, and Fishing Locations CATCHES, FISHING F1FOHIS, CATCHES PER FISHING mar, AND FISHING LOCATIONS FOR THE GULF OF SUEZ AND EGYPTIAN RED SEA COAST PURSE SEINE FISHERY DURING 1979 to 1982 UNITED NATIONS DEVELOPMENT PROGRAMME FOOD AND AGRICULTURE ORGANIZATION OF THE UNITED NATIONS RAB/81/a:J2,/12 CATCHES, FISHING EF.FDRI'S, CATCHES PER FISHING EFFDRT, AND FISHING I.CCATIONS FDR THE GULF OF SUEZ AND EGYPI'IAN RED SEA COASI' PURSE SEINE FISHERY DURING 1979 to 1982 By Michael J. Sanders &: Salah M~. Kedidi Snr. Fishery Biologist Fishery Biologist (in collaboration with) Mohamed R. Hegazy Counterpart Fishery Biologist FOOD AND AGRICULTURE ORGANIZArION OF THE UNITED NATIONS Project for Development of Fisheries in Areas of the Red Sea and Gulf of Aden March 1984 j_ ABS'lRACT This report presents a collation of dm:a describing the rn:mthly catch weights by importam: species groups, the associated fishing efforts ~md catch weights per unit effort, and the fishing locations, for a period of three years fron~ 1979 to 1982. Data collection involved catch enumeration at the landing sites by employees of the Departrr~mt of Agriculture, and the interviewing of skippers for details of fishing efforts and fishing locations by Project personnel and counterparts. ii ACKNOWLEIX1EMENT Tue assistance of the following persons is gratefully acknowledged Mr. N~auib Amin Rash\van (Biologist Assistant) Mr. Mohamed Abdu Abdulralmlfill (Biologist Assistant) Miss Magda Awadallah (Assistant Econornist) Mr. Mahnx:ud Hassan Abdullah (Biologist Assistant) Mr. Mohamed Abdelkerim (Biologist Assistant) Wir. Shawld Khamis (Biologist Assistant) In addition to the 1 enun1erators' and other staff nBrnbers of the Suez and Hurghada branches of the DepartID2nt of Agriculture. iii CONTENTS PAGE 1. INTRODUCTION 1 ') "-'• DRIEF DESCRIPTION OF THE FISHERY 1 3. STUDY METHODS 2 4. RESULTS AND DISCUSSION 3 Catches 3 Fishing Efforts 4 Catches per Fishing Effort 6 Fishing Locations 7 5. CONCLlJ"DING CO.MMENTS 8 6. REFERENCES Al\JD BIBLIOJP.APHY 9 7. TABLES 10 8. FIGUP..ES 44 1. INTTIODUCTION As one of the activities of the UNDP/FAO 'Project for the Developn:ent of Fisheries in the Red Sea and Gulf of Aden' HAB/81/002 (previously HAB/77/008), a biological study of the Gulf of Suez and Egyptian Red Sea fisheries was corrmenced during late 1979. The study emphasis was directed towards the collection and analysis of data relevent to assessing the state of the stocks, and providing an irnproved basis upon v.hich to for- 1111late management advice. The data collection phase of the study was con­ tinued into 1982, at v.hich stage three years data were in hand. This report is intended to be one of a series providing a collation of these data for each of the main fisheries types studied. It specifically deals with the purse seine fishery, which is operated principally on grounds within the Gulf of Suez; but also on grounds adjacent to the entrance of the Gulf, and in Egyptian and Sudanese waters adjacent to Foul Bay. Included in the report, is a description of the IT.Dnthly catches landed during each season by in1portant species, the associated fishing efforts, catches per unit effort, and fishing locations. Data interpretation has been limited to general corrr:Bnts only, with the intention that the rrore detailed interpretation would be provided in subsequent reports dealing with stock assessn:ents and managenent. 2. BRIEF DESCRIPTION OF THE FISHERY Sane 84 vessels are engaged in the fishery; eleven of v.hich are required to be exclusively operated outside the Gulf of Suez. 'The t\ro landing sites are Atal{a, v.hich is adjacent to Suez, and Sakkala within the township of Hurghada. The vessels based at Atalrn are operated within and outside the Gulf, while the vessels based at Sakkala are operated outside the Gulf. 'The fishery is seasonal, particularly that part within the Gulf of Suez, and generally canr.ences in October or NovenJber and concludes at the end of 1lay. All fishing ceases during an approximately ten-day period each rronth, when the IT.Don is full. 'Il1is is a consequence of the fishing rrethod in \vhich the purse seines are set at night around lighted dinghies. Each such dinghy is equipped with about nine kerosene larr;ps each of about 100 watt candle povvBr. This illumination acts to concentrate the fish prior to setting the net. At the beginning of each season, in respect to the Gulf of Suez fishery, nnst fishing is undertalrnn relatively close to the landing site of Atalrn, and involves fishing trips of twJ to five d:.1.ys duration. Later in the season, trips of longer duration are n:ore conmon. When operating in Foul Bay, a single trip may take as long as twenty days, including SL'<: days travelling to and fran the fishing ground • Trips to Foul Bay may involve a vessel being used for trawling and other nethods, as vvBll as for purse seining. 2 The length of the vessels used range from 12.5 metre to 30 nietre. They are powered by engines of between 100 HP to 400 HP. 'lne nets, v.b.ich are generally 200 to 300 metre in length and 50 to 80 metre in depth, are hauled manually. As a consequence the crew nurrbers are generally high, usually some 25 to 30 persons. Typically two or three shots are undertaken from each vessel during each night of fishing; one shot around each independently placed 'lighted' dinghy. A nDre detailed general description of the fishery is given in Awadallah (1982), v.b.ich also contains a detailed account of the incomes and costs associated with purse seining during 1980-81. 3 • S'IlJDY METHODS The data presented in this report derives fran two seperate activities. The first of these, the collection of catch statistics, ~as in operation prior to the conmencement of the study; and involves enunierators employed by tte Suez and Hurghada branches of the Department of Agriculture. In respect of each fishing day they record the number of boxes of fish loaded in each species group category, for each vessel. (These numbers of boxes were subsequently converted to catch weights, on the basis of 25 kg/box). Independent records on vessel .!nnvements' kept by the Coastguard were also used, when required, to determine v,hether the fishing had been undertaken within the Gulf of Suez, adjacent to the Gulf, or within or near Foul Bay. The second activity involved the study personnel interviewing a sample of skippers at the landing sites to determine fishing locations and fishing efforts. Interviews were conducted on several days each week. The numbers of samples taken during each nnnth is shown in Table 1 ;¥- The skippers chosen were from those landing catches on the day of interview, and the information collected was that relevent to the nnst recent fishing trip. The locations were provided with reference to place nanies, and aided by the availability of diagrams copied from Admiralty Charts. The inforrnation sought concerning fishing efforts were the number of fishing days, niean number of shots per fishing day,niean nunber of hours from th2 cormiencement of illumination to the tline of the first shot, mean number of lighted lamps used each fishing day, length of net and depth of net. 'Ihe associated information collected ~Bre the names of the skipper and vessel, the nurrber of crew, the nan-ie of the port of landing, and the date. The nwriber of boxes for each species group comprising the particular landings, were subsequently obtained from the previously mentioned catch statistics. Estimates of the total efforts expended during each nnnth \Vere detennined from these sample data. The estin:ation procedure firstly involved determining the fleet effort on each interview day. 'Ihis was estimated as the proc..1uct of the effort associated with the interview landing and the raising factor catch landed by fleet on interview day/catch landed from interview vessel(s) * The intensity of samples, as percentages of the estimated nurnbers of fishing trips were 3% for th Gulf of Suez, 33% for Foul Bay a..11d adjacent waters, and 2('f'h for adjacent to the Gulf of Suez. 3 1 on the same day • After surrming the fleet effort for all the interview days, the fleet effort for the rronth was determined as the product of this and the raising factor 'catch landed by fleet during ITDnth/catch landed by fleet on interview days'. Efforts in units of numbers of fishing days, shots, illumination hours, and landings were determined in this way for each ITDnth, and then Sl.lIIm2d to obtain the annual totals. These values were in turn used for estimating the rrean number of shots per fishing day, the rrean number of illumination hours per fishing day and the mean number of fishing days per landing. The other effort associated statistics such as the mean length of vessels, rrean main engine horse pov.er, rrean length of net , mean depth of net, mean number of lighted lamps used per fishing day, and the rrean number of crew per trip were determined for each month as the simple mean of data resulting directly fran the interviews. The annual means w::re estimated from the rronthly means after 'weighting' each of these by the number of interviews undertaken during the month. The estimation of catches per unit effort involved dividing the monthly and annual landings for each species group by the associated estimated efforts. In respect to the small number of vessels engaged in other types of fishing activity, such as trawling or lining, that part of the landings reslllting fran these other rrethods and the associated fishing efforts, have been excluded when making the above rrentioned calculations.
Load more

Recommended publications
  • This Keyword List Contains Indian Ocean Place Names of Coral Reefs, Islands, Bays and Other Geographic Features in a Hierarchical Structure
    CoRIS Place Keyword Thesaurus by Ocean - 8/9/2016 Indian Ocean This keyword list contains Indian Ocean place names of coral reefs, islands, bays and other geographic features in a hierarchical structure. For example, the first name on the list - Bird Islet - is part of the Addu Atoll, which is in the Indian Ocean. The leading label - OCEAN BASIN - indicates this list is organized according to ocean, sea, and geographic names rather than country place names. The list is sorted alphabetically. The same names are available from “Place Keywords by Country/Territory - Indian Ocean” but sorted by country and territory name. Each place name is followed by a unique identifier enclosed in parentheses. The identifier is made up of the latitude and longitude in whole degrees of the place location, followed by a four digit number. The number is used to uniquely identify multiple places that are located at the same latitude and longitude. For example, the first place name “Bird Islet” has a unique identifier of “00S073E0013”. From that we see that Bird Islet is located at 00 degrees south (S) and 073 degrees east (E). It is place number 0013 at that latitude and longitude. (Note: some long lines wrapped, placing the unique identifier on the following line.) This is a reformatted version of a list that was obtained from ReefBase. OCEAN BASIN > Indian Ocean OCEAN BASIN > Indian Ocean > Addu Atoll > Bird Islet (00S073E0013) OCEAN BASIN > Indian Ocean > Addu Atoll > Bushy Islet (00S073E0014) OCEAN BASIN > Indian Ocean > Addu Atoll > Fedu Island (00S073E0008)
    [Show full text]
  • Southern Egyptian Red Sea Bays, Offshore Reefs and Islands IMMA
    Southern Egyptian Red Sea Bays, Offshore Reefs and Islands IMMA Summary The Egyptian Red Sea waters south of Marsa Alam encompass diverse marine habitats, including coastal bays, offshore reefs, and islands, supporting populations of nine marine mammal species. The northern parts of the area feature habitats used by Area Size resident dugong (Dugong dugon) and spinner 19,425 km2 dolphins (Stenella longirostris).¬† These populations have become the target of popular, intense, and in Qualifying Species and Criteria many cases, unregulated “swim-with” tourism operations that take place in their resting and calving areas. Conversely, the southern portion of the area is Dugong – Dugong dugon remote and less affected by coastal development Criteria A, B1 and tourism. Scientific research on marine mammals in this area commenced in the early 2000s and has Indian Ocean humpback dolphin – Sousa plumbea contributed significantly to the understanding of Criterion A spinner dolphin and dugong behaviour, as well as species occurrence, distribution and ecology in the Risso’s dolphin – Grampus griseus region. Criterion B1 Description Spinner dolphin – Stenella longirostris Criteria B1, C1 The IMMA is located in Egypt’s Red Sea Governorate, an administrative division of Egypt including most of Indo-Pacific bottlenose dolphin – Tursiops aduncus the Red Sea coastal area, from the Suez Canal to the Criterion B1 border with Sudan. It encompasses the entire Marsa Alam administrative region, which ranges from Port Ghalib in the north (25.6°N, 34.1°E) to Shalatin in the Common bottlenose dolphin – Tursiops truncatus south (23.5°N; 33.5°E), and includes a range of diverse Criterion B2 marine and terrestrial habitats.
    [Show full text]
  • Notes on Some Stomatopod Crustacea from the Sinai Peninsula, Red Sea
    Notes on Some Stomatopod Crustacea from the Sinai Peninsula, Red Sea RAYMOND B. MANNING and CH. LEWINSOHN SMITHSONIAN CONTRIBUTIONS TO ZOOLOGY • NUMBER 433 SERIES PUBLICATIONS OF THE SMITHSONIAN INSTITUTION Emphasis upon publication as a means of "diffusing knowledge" was expressed by the first Secretary of the Smithsonian. In his formal plan for the Institution, Joseph Henry outlined a program that included the following statement: "It is proposed to publish a series of reports, giving an account of the new discoveries in science, and of the changes made from year to year in all branches of knowledge." This theme of basic research has been adhered to through the years by thousands of titles issued in series publications under the Smithsonian imprint, commencing with Smithsonian Contributions to Knowledge in 1848 and continuing with the following active series: Smithsonian Contributions to Anthropology Smithsonian Contributions to Astrophysics Smithsonian Contributions to Botany Smithsonian Contributions to the Earth Sciences Smithsonian Contributions to the Marine Sciences Smithsonian Contributions to Paleobiology Smithsonian Contributions to Zoology Smithsonian Folklife Studies Smithsonian Studies in Air and Space Smithsonian Studies in History and Technology In these series, the Institution publishes small papers and full-scale monographs that report the research and collections of its various museums and bureaux or of professional colleagues in the world of science and scholarship. The publications are distributed by mailing lists to libraries, universities, and similar institutions throughout the world. Papers or monographs submitted for series publication are received by the Smithsonian Institution Press, subject to its own review for format and style, only through departments of the various Smithsonian museums or bureaux, where the manuscripts are given substantive review.
    [Show full text]
  • Check List of Plankton of the Northern Red Sea
    Pakistan Journal of Marine Sciences, Vol. 9(1& 2), 61-78,2000. CHECK LIST OF PLANKTON OF THE NORTHERN RED SEA Zeinab M. El-Sherif and Sawsan M. Aboul Ezz National Institute of Oceanography and Fisheries, Kayet Bay, Alexandria, Egypt. ABSTRACT: Qualitative estimation of phytoplankton and zooplankton of the northern Red Sea and Gulf of Aqaba were carried out from four sites: Sharm El-Sheikh, Taba, Hurghada and Safaga. A total of 106 species and varieties of phytoplankton were identified including 41 diatoms, 53 dinoflagellates, 10 cyanophytes and 2 chlorophytes. The highest number of species was recorded at Sharm El-Sheikh (46 spp), followed by Safaga (40 spp), Taba (30 spp), and Hurghada (23 spp). About 95 of the recorded species were previously mentioned by different authors in the Red Sea and Gulf of Suez. Eleven species are considered new to the Red Sea. About 115 species of zooplankton were recorded from the different sites. They were dominated by four main phyla namely: Arthropoda, Protozoa, Mollusca, and Urochordata. Sharm El-Sheikh contributed the highest number of species (91) followed by Safaga (47) and Taba (34). Hurghada contributed the least (26). Copepoda dominated the other groups at the four sites. The appearances of Spirulina platensis, Pediastrum simplex, and Oscillatoria spp. of phyto­ plankton in addition to the rotifer species and the protozoan Difflugia oblongata of zooplankton impart a characteristic feature of inland freshwater discharge due to wastewater dumping at sea in these regions resulting from the expansion of cities and hotels along the coast. KEY WORDS: Plankton, Northern Red Sea, Check list.
    [Show full text]
  • Are You Suprised ?
    CURRICULUM VITA Name: Prof. Dr. Sahar Fahmy Youssef Mehanna Birth date: 15.4.1964 - Port Said, Egypt Occupation: Professor of Fish Population Dynamics and fish stock assessment, National Institute of Oceanography and Fisheries NIOF, P. O. Box 182, Suez, Egypt. E-mail: [email protected] [email protected] Work phone: +2 - 062 - 3360015 Mobile: +201063770701 URL: http://livedna.org/20.257 Education 1997 Ph.D. (The study of biology and population dynamics of Lethrinus mahsena in the Gulf of Suez), Faculty of Science, Zoology Department, Zagazig University. 1993 M.Sc., (Rational exploitation of kuruma shrimp Penaeus japonicus Bate, 1888 in the Gulf of Suez), Faculty of Science, Zoology Department, Zagazig University. 1985 B.Sc., (Excellent) Zoology Department - Faculty of Science, Suez Canal University. Career history March 2020 – November 2020: Supervisor of the NIOF research station for aquaculture January 2018 – Present: Consultant for the National company for aquaculture and fisheries, Defense Ministry November 2017 – April 2018: Director of Red Sea Branch, NIOF March 2015 – October 2015: Director of Suez and Aqaba Gulfs Branch, NIOF December 2014 -March 2015: Head of Fisheries Division, NIOF March 2013- December 2013: Stock Assessment Program advisor in TCP/SNG/3402 Capacity building in fisheries stock assessment in GCC Project, FAO, GCC and Yemen, FAO. 1 August 2013-November 2020: Head of Fish Population Dynamics Lab, NIOF, Egypt. Sep 2011- Sep 2013: Stock assessment and Fisheries management expert in Marine sciences and Fisheries Center, Ministry of Agriculture and Fisheries Wealth, Sultanate of Oman. 2005 – 2011: Head of Fish Population Dynamics Lab, National Institute of Oceanography and Fisheries NIOF, Egypt.
    [Show full text]
  • Checklist of Phytoplankton Species in the Egyptian Red Sea Coast of Hurghada
    See discussions, stats, and author profiles for this publication at: https://www.researchgate.net/publication/326019638 Checklist of phytoplankton species in the Egyptian Red Sea Coast of Hurghada Article · June 2018 DOI: 10.21608/ejabf.2018.8167 CITATIONS READS 0 368 3 authors: Sara Galal Abbass Fedekar F. Madkour Port Said University Port Said University 2 PUBLICATIONS 0 CITATIONS 80 PUBLICATIONS 275 CITATIONS SEE PROFILE SEE PROFILE Mohamed Abu El-Regal Port Said University 81 PUBLICATIONS 100 CITATIONS SEE PROFILE Some of the authors of this publication are also working on these related projects: Molecular identification of Erugosquilla massavensis from Mediterranean Sea, Egypt View project my project is Study on diversity of seaweeds in Wadi El-Gemal, Red Sea, and effect of their extracts on the bacteria of medical importance View project All content following this page was uploaded by Fedekar F. Madkour on 27 June 2018. The user has requested enhancement of the downloaded file. Egyptian Journal of Aquatic Biology & Fisheries Zoology Department, Faculty of Science, Ain Shams University, Cairo, Egypt. ISSN 1110 - 6131 Vol. 22(2): 93- 101 (2018) http://ejabf.journals.ekb.eg/ Checklist of phytoplankton species in the Egyptian Red Sea Coast of Hurghada Sara G. Abbass; Fedekar F. Madkour and Mohamed A. Abu-El-Regal Marine Science Department, Faculty of Science, Port Said University, Egypt ARTICLE INFO ABSTRACT Article History: Surface phytoplankton samples were collected at twelve stations of Received: May 5, 2018 Hurghada coast of the Red Sea. Phytoplankton samples were conducted Accepted: June 4,2018 monthly during the period from August 2014 to July 2015.
    [Show full text]
  • Memorandum of Understanding on The
    MEMORANDUM OF UNDERSTANDING CMS/IOSEA/AC9/Doc.4 ON THE CONSERVATION AND 04 March 2021 MANAGEMENT OF MARINE TURTLES AND THEIR HABITATS OF THE INDIAN Original: English OCEAN AND SOUTH-EAST ASIA 9TH MEETING OF THE ADVISORY COMMITTEE online, 15-19 March 2021 Agenda Item 4 DRAFT ASSESSMENT OF THE CONSERVATION STATUS OF THE HAWKSBILL TURTLE IN THE INDIAN OCEAN AND SOUTH EAST ASIA (Prepared by AC Members) Action Requested: • Discuss what is needed to get the assessment finished and develop a concrete plan how to proceed Assessment of the conservation status of the hawksbill turtle in the Indian Ocean and South East Asia IOSEA Species Assessment: Volume 3 DRAFT REPORT Nov2020 – prepared for the review Compilers Mark Hamann, Colin Limpus, Jeff Miller, Freya Flavell (to be finalised) IOSEA Marine Turtle MoU Secretariat Acknowledgements We are thankful for the contributions of Kartik Shanker, Naveen, Adhith, Muralidharan Manoharakrishnan, Jarina Indian Ocean – South East Asian Hawksbill Turtle Assessment DRAFT Preface The Memorandum of Understanding on the Conservation and Management of Marine Turtles and their Habitats of the Indian Ocean and South-East Asia (IOSEA Marine Turtle MoU) is a non-binding framework under the Convention on Migratory SpeCies through whiCh States of the Indian OCean and South-East Asia region are working together to Conserve and replenish depleted marine turtle populations for whiCh they share responsibility. The IOSEA Marine Turtle MoU took effeCt in September 2001 and has 35 Signatory States (as of May 2014). Supported by an Advisory Committee of eminent sCientists and Complemented by the efforts of numerous nongovernmental and intergovernmental organisations, Signatory States are working towards the implementation of a Comprehensive Conservation and Management Plan.
    [Show full text]
  • Review of the Fisheries Resources of the Red Sea and the Gulf of Aden
    0.4 0.4 s n'.. ::,.% OA. :::::: e :%.. e%-5.....' ele:e.:.:..::1 : :.%,.. **AK,::e:%X..: ,,. ::.:. .::::e:e:.6:6:V00' ..»::%::+7,*. e:%0e...Al :.: :::::; it.;::::::::¡::::.:::.:.:...... ...e: :::::::::. :4. :.:11:6:1¡::::11.::::.::.:ee ...:::.¡:* ;::::i' ..§:..:..::;..:::: ; ; .4% ;.1%; :§§§i.:Ali..i:i!e..::::K:gi.* .:::::::1e . .:$.:::14 ..::::::.:.%::::::.*: :;:;:::::,::-::%%%:::%::::3 :%.4.....».:..0% :% 4..ne ..*0.-VI'.:::::::::::::::::::.%%:::/:.,»:::.....:.:0....%:44-0.%::::.0:.......».w.%%::. .1%;;;4.:::::::.:.:.::.::::::::::::::::::4* ..:1,..:::::::::7 :::::::::::.%.%:::::::.:.o.::::::::::$ oo'.A.::::*Eiliit..:::.»::::::;:::::*:::::4:::::::::.::::.:::.004.4..: :::::::.:%"v.:% :::-.....:.:00.. ...... - N0:4 .::::::-...........,....%::::::: ft:::::::::::k. ::::::::-: S..::%;::::.0.:: .;.% .. .0.-..... :::::::::::::::::::f 1::::::4' K33K:::::%: ::::::::::::::::::....:.:%%........: .....::::::%:::::.::.,1%.ç-n;:.:::::::::::::::::::$::::::::::::.:::::::.:.. "0 » :::;:;:ir::::::::+:44.:-........:$., .:.:::::::::.:::.:.::..............% % :% .......... : ...: .t::::::::::°. .. :::;:V*:::4:11:$4:sts.s. s s s.:.. :.,:.:::. :.::::::::. We . .::::::::::::::::0:::.:40::..::»:%. .......... :GM....%C. .00::*% Ill. Ui .,...,...,, ...,.. ^ ::::::*:.:::: :40.::::. ' t.5° ...:. : : .:".:11: ::1 (.1 ii. ..11.::: ::1::::.:::: i :>::::.: ...i .::::....% :::.".....11:11 ::::: :11. 11: It. : 9 1 :::::::::%:::::::::::»:::::::::::..m. ::::' :::.: v.0 >01 .. ... : :: . :.: : ::i. .:,% N:::::::%%::*:% %::::%%%%:*:..%::%%:*:::.0,,,... ,... %%:*:*:.:1.,,,,,
    [Show full text]
  • A Bibliography of Oceanographic and Marine Environmental Research
    A Bibliography of Oceanographic and Marine Environmental Research 1985-1998 Red Sea and Gulf of Aden Region PERSGA / GEF Companion volume to: RED SEA, GULF OF ADEN AND SUEZ CANAL A Bibliography on Oceanographic and Marine Environmental Research 1775-1984 Morcos, S.A. and A. Varley (eds) ALECSO-PERSGA-UNESCO 1990 PERSGA - ‘The Regional Organization for the Conservation of the Environment of the Red Sea and Gulf of Aden’ is an intergovernmental organisation dedicated to the conservation of the coastal and marine environments in the region. The Arab League Educational, Cultural and Scientific Organization (ALECSO) initiated a Programme for the Environment of the Red Sea and Gulf of Aden (PERSGA) in 1974. One of its most significant achievements was the development of The Jeddah Convention, signed in 1982 by the plenipotentiaries of the governments in the region. Article XVI called for the creation of The Regional Organization for the Conservation of the Environment of the Red Sea and Gulf of Aden. This body was officially established in 1995 at the first Council Meeting in Cairo. It has inherited the acronym PERSGA from ALECSO’s original programme. PERSGA’s Member States include Djibouti, Egypt, Jordan, Saudi Arabia, Somalia, Sudan and Yemen. The headquarters of the Organisation are located in Jeddah, Saudi Arabia. The preparation of this volume has been undertaken as Activity 4.2.4 of the GEF Project - Support to the Strategic Action Programme for the Red Sea and Gulf of Aden, implemented by UNEP as Project Number GF/1100-96-02. The project
    [Show full text]
  • Pdf (573.27 K)
    Egyptian Journal of Aquatic Biology & Fisheries Zoology Department, Faculty of Science, Ain Shams University, Cairo, Egypt. ISSN 1110-6131 Vol. 21(1): 63-72 (2017) www.ejabf.js.iknito.com Studies on age, growth, and mortality rates for management of the redspot emperor, Lethrinus lentjan (Lacepède, 1802) in the Egyptian sector of Red Sea Samir A. Zaahkouk 1, Hassan M. Khalaf-Allah 1; Sahar F. Mehanna 2; Fahmy I. El-Gammal 2 and Ahmed F. Makkey 2 1- Zoology Department, Faculty of Science, Al-Azhar University, Cairo, Egypt. 2- Fish Population Dynamics Lab, National Institute of Oceanography and Fisheries, Egypt. ARTICLE INFO ABSTRACT Article History: Age, growth and mortality are very important parameters for rational Received: Jan. 2017 exploitation and management of the fish population. Age, growth, Accepted: Feb 2017 mortality and exploitation rates were studied to assess the current status Available online: May 2017 of the redspot emperor Lethrinus lentjan stock in the Egyptian sector of _______________ Red Sea. The study was based on a total of 943 specimens that collected during 2014 and 2015 with total length range of 11.5 to 50.7 cm. Results Keywords : showed that, the maximum life span of L. lentjan in the Egyptian Red Lethrinus lentjan Sea was 6 years and age group one is the most frequent one forming up Age to 54% of the total catch. L. lentjan attains its highest growth in length at Growth mortality rate the end of the first year of life (24.45 cm) after which the annual Red Sea increment in length decreases gradually with the further increase in age.
    [Show full text]
  • Indian Ocean – Country/Territory
    CoRIS Place Keyword Thesaurus by Country/Territory - 8/9/2016 Indian Ocean This keyword list contains Indian Ocean place names of coral reefs, islands, bays and other geographic features in a hierarchical structure. For example, the first name on the list - Darwin - is part of the Northern Territory of Australia. The leading label - COUNTRY/TERRITORY - indicates that place names are preceded by their country or territory. The list is sorted alphabetically. The same names are available from “Place Keywords by Ocean - Indian Ocean” but in a hierarchy of ocean, seas and region name. Each place name is followed by a unique identifier enclosed in parentheses. The identifier is made up of the latitude and longitude in whole degrees of the place location, followed by a four digit number. The number is used to uniquely identify multiple places that are located at the same latitude and longitude. For example, the first place name “Darwin” has a unique identifier of “12S130E0001”. From that we see that Darwin is located at 12 degrees south (S) and 130 degrees east (E). It is place number 0001 at that latitude and longitude. This is a reformatted version of a list that was obtained from ReefBase. COUNTRY/TERRITORY > Australia > Christmas Island (10S106E0000) COUNTRY/TERRITORY > Australia > Cocos Keeling Atoll > Pulu Keeling (12S097E0000) COUNTRY/TERRITORY > Australia > Northern Territory > Darwin (12S130E0001) COUNTRY/TERRITORY > Australia > Western Australia > Adele Islands (15S123E0001) COUNTRY/TERRITORY > Australia > Western Australia > Ashmore
    [Show full text]
  • Tiran Island, Red Sea) Poissons Benthiques Structure De La Communauté Richesse En Espèces
    OCEANOLOGICA ACTA 1985- VOL. 8- W 4 ~ -----·~- Red Sea Tiran Island Benthic fishes Community structures The communities of benthic fish Species richness Mer Rouge Ile de Tiran in Foui Bay (Tiran Island, Red Sea) Poissons benthiques Structure de la communauté Richesse en espèces Menachen GOREN, Ehud SPANIER Department of Zoology, George S. Wise Faculty of Life Sciences,Tel Aviv University, Ramat-Aviv 69978 Tel-A viv, Israel. Department of Maritime Civilizations and Center for Maritime Studies, University of Haïfa, Mount Carmel, Haifa 31999, Israel. Received 11/3/85, in revised form 6/6/85, accepted 7/6/85. ABSTRACT The study was conducted on benthic communities of fishes in Foui Bay (Tiran Island, Northern Red Sea). 1588 fish assigned to 154 species were collected at six stations. The number of species at each station ranged from 21 to 64. The values of species s diversity (H=- L (Pi log Pi)) were found to be relatively high: 2.0050-5.5500, as i=l were the values of the evenness rate (J =H/Hmax): 0.3742-0.952 8. The values of s similarity between each couple of stations (A/=[2- L IPiJ-PiKI.50]) were found 1=1 to be low: 7.25%-41.38%, as were the proportions of species common to each couple of stations: 10.87-29.59%. The richness of species of the leading families is compared with that of the entire Red Sea and that of the reef community of northern Entedebeer Island. The ecological significance of these findings and the uniqueness of Foui Bay in its tropical surroundings are discussed.
    [Show full text]