Molecular Biomarker Studies on Ecotoxicological Impact of Pollutants on the Marine Gastropods Along the Goa Coast

Total Page:16

File Type:pdf, Size:1020Kb

Molecular Biomarker Studies on Ecotoxicological Impact of Pollutants on the Marine Gastropods Along the Goa Coast MOLECULAR BIOMARKER STUDIES ON ECOTOXICOLOGICAL IMPACT OF POLLUTANTS ON THE MARINE GASTROPODS ALONG THE GOA COAST JACKY BHAGAT A Thesis submitted to Goa University for the Award of the Degree of DOCTOR OF PHILOSOPHY in MARINE SCIENCES Research Guide: Dr. B. S. Ingole, Professor & Chief Scientist, CSIR-National Institute of Oceanography Dona Paula, Goa - 403004 Co-guide: Dr. A. Sarkar Former Senior Principal Scientist CSIR-National Institute of Oceanography Dona Paula, Goa - 403004 Place of Work: CSIR-National Institute of Oceanography Dona Paula, Goa - 403004 Details of Ph.D. Registration: No. 201109255, 15 November, 2011 I | Page Statement As required under the University ordinance OB-9.9 (v-vi), I state that this thesis entitled "Molecular Biomarker Studies On Ecotoxicological Impact Of Pollutants On The Marine Gastropods Along The Goa Coast" is my original contribution and it has not been submitted on any previous occasion. The literature related to the problem investigated has been cited. Due acknowledgements have been made wherever facilities and suggestions have been availed of. JACKY BHAGAT CSIR-National Institute of Oceanography, Goa. 3rd April, 2017 II | Page Certificate This is to certify that the thesis entitled "Molecular Biomarker Studies On Ecotoxicological Impact Of Pollutants On The Marine Gastropods Along The Goa Coast" submitted by Shri Jacky Bhagat for the award of the degree of Doctor of Philosophy in Marine Science is based on original studies carried out by him under my supervision. The thesis or any part thereof has not been previously submitted for any other degree or diploma in any institution. Dr. B. S. Ingole Research Supervisor CSIR-National Institute of Oceanography, Dona Paula, Goa 3rd April, 2017 III | Page List of Papers Published Papers from thesis: 1. Bhagat J*, Sarkar A, Vashistha D, Vipin Singh, Laxmi Raiker, Ingole BS 2017. Integrated Biomarker Responses In Marine Gastropod (Nerita Chamaeleon) From Goa Coast, India. Invertebrate Survival Journal 14, 18-31. IF=0.754 (http://www.isj.unimo.it/articoli/ISJ452.pdf) 2. Bhagat J*, Ingole BS, Singh N. 2016. Glutathione S-transferase, catalase, superoxide dismutase, glutathione peroxidase, and lipid peroxidation as a biomarker of oxidative stress in snails: A review. Invertebrate Survival Journal 13, 333-349. IF=0.754 (http://www.isj.unimo.it/articoli/ISJ444.pdf) 3. Bhagat J*, Sarkar A, Ingole BS 2016. DNA damage and oxidative stress in marine gastropod, Morula granulata exposed to phenanthrene. Water air soil pollution (2016), 227:114 IF=1.551 (https://link.springer.com/article/10.1007/s11270-016-2815-1) 4. Bhagat J*, Ingole BS 2015. Genotoxic potency of mercuric chloride in gill cells of marine gastropod Planaxis sulcatus using comet assay. Environmental science and pollution research 22 (14):10758-10768. IF=2.828 (http://www.sciencedirect.com/science/article/pii/S0147651314001638) 5. Sarkar A, Bhagat J*, Ingole BS, Rao DP, Markad VL 2015. Genotoxicity of cadmium chloride in marine gastropod, Nerita chamaeleon using comet assay and alkaline unwinding assay. Environmental Toxicology, 30 (2): 177-187. IF=3.197 (http://onlinelibrary.wiley.com/doi/10.1002/tox.21883/full) 6. Sarkar A*, Bhagat J, Sarker S 2014. Evaluation of impairment of DNA in marine gastropod, Morula granulata as a biomarker of marine pollution, Ecotoxicology and Environmental Safety 106, 253–261. IF=2.762. (http://www.sciencedirect.com/science/article/pii/S0147651314001638) 7. Bhagat J*, Ingole B, Sarkar A, Gunjikar M 2012. Measurement of DNA damage in Planaxis sulcatus as a biomarker of genotoxicity. The Ecoscan, 1, 01-04, 2012, 219-223. (http://theecoscan.in/journalpdf/spl2012_v1- 38%20jacky%20bhagat.pdf) IV | Page 8. Bhagat J*, Singh K, Rai P, Raizada G, Sarkar A 2012. Alkaline unwinding assay for the assessment of DNA damage in Planaxis sulcatus from Goa coast. Nebio, 3, 5, 34-36. (http://www.nebio.info/2012/12/nebio-special-issue-ebi- 2012.html) *corresponding author Submitted for Publications from thesis: • Bhagat J*, Ingole BS. Effects of benzo(k)fluoranthene, a polycyclic aromatic hydrocarbon, on DNA damage and oxidative stress in marine gastropod Morula granulata. Toxicological & Environmental Chemistry (under review, GTEC-2016-0617) • Bhagat J*, A Sarkar, Ingole BS. Seasonal and spatial variability of oxidative stress biomarkers in marine gastropod Nerita chamaeleon in relation to polycyclic aromatic hydrocarbon. Ecotoxicology and Environmental Safety (under review, EES S16 01650) Papers presented in International Conference/Symposium Bhagat J*, Ingole BS. Effects of benzo(k)fluoranthene, a polycyclic aromatic hydrocarbon, on DNA damage and oxidative stress in marine gastropod Morula granulata, IC3-2015. Bhagat J*, Sarkar A, Singh V, Raiker L, Ingole BS. Integrated biomarker responses in marine gastropod (Nerita chamaeleon) environmentally exposed to polycyclic aromatic hydrocarbons, IIOE-2015. Bhagat J, Ingole BS. Assessment of genotoxic potency of mercuric chloride in gill cells of marine gastropod Planaxis sulcatus using comet assay, presented at International Conference ICFA-2014. Bhagat J*, Ingole BS. Assessment of genotoxic damage and lipid peroxidation in marine gastropod Morula granulata exposed to phenanthrene, presented at 4th International Conference ICEES-2014. Bhagat J*, Ingole B, Sarkar A, Gunjikar M 2012. Measurement of DNA damage in Planaxis sulcatus as a biomarker of genotoxicity, ICAIECs-2012. V | Page Sarkar A, Bhagat J, Tegur PM* and Manu B, Application of Molecular Biomarker Technique for Assessment of the Impact of Genotoxic Contaminants in the Marine Environment, ICCTEM-2012. Bhagat J, Sarker G*, Rajgopal TV, Raizada G, Vashistha D and Sarkar A, Strategies for Prevention and Control of Water Pollution - An overview, Presented at International Conference on Ecotoxicological and Environmental Science (ICEES), Miramar Residency, Goa, India, 28-30 Nov, 2011 Sarkar A, Bhagat J* and Deepti Vashistha, Measurement of DNA Integrity In Morula granulata as a Biomarker of Genotoxicants along the Goa Coast, Presented at ICEES-2011. Papers presented in International Conference/Symposium Bhagat J, Singh K*, Rai P, Raizada G, Sarkar A, Alkaline unwinding assay for the assessment of DNA damage in Planaxis sulcatus from Goa coast, Presented at EBI-2012. Bhagat J*, Ingole BS, Sarkar A and Rao DP, Comet assay for the measurement of DNA damage in marine gastropods exposed to genobiotic pollutants, Presented at the EBI-2012. Bhagat J*, Sarkar A, Vashistha D, Mesquita A, Inhibition of AChE Activity in Marine Gastropod as a Biomarker of Coastal Pollution by Neurotoxic Contaminants, NCCIECM-2012. *presenting author VI | Page Acknowledgements I am deeply indebted to my thesis supervisor, Dr. B. S. Ingole for his encouragement and unwavering support in this work. Without his guidance and support, this thesis would not have been possible. I also thank him for believing in me, and for going the extra mile when it was necessary, in order to make this happen. I have greatly benefited from his knowledge and experience. I wish to express my profound thanks to Dr. Anupam Sarkar, for bringing me to this wonderful institute and acting as my research guide and then as a co-guide during my stay at CSIR-NIO. His positive criticism, suggestions and valuable comments has left everlasting impression on me. His initiative, constant support and help has lead to the successful completion of my present investigation. I would like to thank Dr. S. W. A. Naqwi, Director, CSIR-National Institute of Oceanography, Goa for providing me with all the necessary facilities to carry out my research work. The financial support by Department of Biotechnology, New Delhi in the form of Junior and Senior Research Fellowship is highly acknowledged. I also would like to thank CSIR for providing the infrastructure and the necessary facilities to conduct my research work. My heartfelt thanks to Dr. S. R. Shetye, Vice Chancellor, Goa University for giving me the opportunity to undergo the Ph.D. degree. I express my special thanks to Dr. R. Roy, Department of Zoology, Goa University and Dr. C. Mohandas, CSIR-NIO for their valuable suggestions given during my SRF assessment. My appreciation goes to Dr. S. S. Sawant, Scientist, CSIR-NIO for helping me in PAH analysis and Mithila Bhat for mercury analysis. I extend my sincere thanks to Dr. Ramaiah, Head of Department, BOD, Mrs. Analia Mesquita, Head of VII | Page Department, COD, Dr. C. U. Rivonkar, Head of Department of Marine Science, Goa University and Mr. D.P. Rao, Scientist, CSIR-NIO for their valuable suggestions and continuous help in furtherance of my research work. Many thanks to Mr. Prabhu, Mr. Madan, Mr. S.R. Sahu and Mr. Mithun at CSIR-NIO, Library for providing necessary support during my research work. I feel immense pleasure in expressing my special thanks to all the staffs from COD, BOD and ITG section, who directly or indirectly helped me during the completion of this work. I would also like to thank Nisha for helping me in thesis formatting and Haris, Afreen for all the suggestions in my thesis preparation, printing and binding. I would like to express my sincere appreciation to Vijay Markad for teaching me some of the important biomarker techniques. I would also like to thank my colleagues and friends, Deepti, Laxmi, Sutapa, Priyamvada, Moon, Geetika, Priyanka, Vipin, Manasi and everyone from benthos lab for assisting me in my studies and field work. I am also thankful to my roommate Vijay Rawat, Azraj Dahihande and Gobardhan Sahoo for their valuable friendship. No acknowledgement will be complete without expressing my gratitude towards my loving parents for their love and support in every walk of life. JACKY BHAGAT CSIR-National Institute of Oceanography, Goa. 3rd April, 2017 VIII | Page Table Of Contents STATEMENT II CERTIFICATE III LIST OF PAPERS IV ACKNOWLEDGEMENTS VI LIST OF TABLES XI LIST OF FIGURES XII ABBREVIATIONS XVII CHAPTER 1 - INTRODUCTION 1 CHAPTER 2 - REVIEW OF LITERATURE 5 2.1. Environment Pollutants 5 2.1.1. Polycyclic aromatic hydrocarbons (PAHs) 5 2.1.2.
Recommended publications
  • Cone Snail Case
    Cone Snail case Cone snail molecular phylogeny Cone snail video Snail Venom Yields Potent Painkiller, But Delivering The Drug Is Tricky Updated August 4, 201510:52 AM ETPublished August 3, 20153:30 PM ET http://www.npr.org/sections/health-shots/2015/08/03/428990755/snail-venom- yields-potent-painkiller-but-delivering-the-drug-is-tricky Magician’s cone (Conus magus) The magician’s cone, Conus magus, is a fish-hunting, or piscivorous cone snail found in the Western Pacific. It is so common in some of small Pacific islands, especially in the Philippines, that it is routinely sold in the market as food. The magician’s cone attacks its fish prey by sticking out its light yellowish proboscis, from which venom is pushed through a harpoon-like tooth. It hunts by the hook-and-line method and so will engulf its prey after it has been paralyzed. To learn more about hook-and-line hunters, click here. Scientists have analyzed the venom of the magician’s cone and one of its venom components was discovered to have a unique pharmacological activity by blocking a specific calcium channel (N-type). After this venom component was isolated and characterized in a laboratory, researchers realized that it had potential medical application. By blocking N-type calcium channels, the venom blocks channels that when open convey pain from nerve cells. If this is blocked, the brain cannot perceive these pain signals. It was developed as a pain management drug, and is now chemically synthesized and sold under the trade name Prialt. This drug is given to patients who have very severe pain that is not alliviated by morphine.
    [Show full text]
  • Educators' Resource Guide
    EDUCATORS' RESOURCE GUIDE Produced and published by 3D Entertainment Distribution Written by Dr. Elisabeth Mantello In collaboration with Jean-Michel Cousteau’s Ocean Futures Society TABLE OF CONTENTS TO EDUCATORS .................................................................................................p 3 III. PART 3. ACTIVITIES FOR STUDENTS INTRODUCTION .................................................................................................p 4 ACTIVITY 1. DO YOU Know ME? ................................................................. p 20 PLANKton, SOURCE OF LIFE .....................................................................p 4 ACTIVITY 2. discoVER THE ANIMALS OF "SECRET OCEAN" ......... p 21-24 ACTIVITY 3. A. SECRET OCEAN word FIND ......................................... p 25 PART 1. SCENES FROM "SECRET OCEAN" ACTIVITY 3. B. ADD color to THE octoPUS! .................................... p 25 1. CHristmas TREE WORMS .........................................................................p 5 ACTIVITY 4. A. WHERE IS MY MOUTH? ..................................................... p 26 2. GIANT BasKET Star ..................................................................................p 6 ACTIVITY 4. B. WHat DO I USE to eat? .................................................. p 26 3. SEA ANEMONE AND Clown FISH ......................................................p 6 ACTIVITY 5. A. WHO eats WHat? .............................................................. p 27 4. GIANT CLAM AND ZOOXANTHELLAE ................................................p
    [Show full text]
  • Miyako Letter
    NY MUTUAL TRADING INC, NO. 132 77 Metro Way Secaucus NJ 07094 MIYAKO LETTER Tel.:201-933-9555, 212-564-4094 02/01/18 HIGHLIGHT OF FEBRUARY SNOW CRAB COMBO MEAT RED KING CRAB LEGS “KEGANI” HAIRY CRABS If you are looking for a The Kegani (Horsehair 1 decadent flavor and savory Crab) are bountiful around taste for that very special Hokkaido. They are very occasion, then look no sweet and their meat is further!! Nothing is more tender. Ke-gani is smaller Meat is hand-picked to ensure larger whole pieces and then impressive than these in size and it has little 2 is vacuum sealed to ensure optimal freshness and packed in Alaskan Red King Crab Legs. meat; however, the flavor separate layers of leg, body and claw meat. This combo meat Caught during the winter is full-bodied and it has contains less sodium than similar products in the market. Its months in the frigid and great kani-miso (crab guts) meat is snowy white and has a moist, tender texture with a pristine waters of Alaska, the which is a very popular delicate, sweet flavor. Perfetct for making fried rice, salad, egg quality is incomparable and Japanese delicacy. Winter foo young, crab croquet, chawan-mushi and more. will be enjoyed by all who is the best time of year to tuck into the tasty 1 #73557 F-SNOW CRAB COMBO MEAT, KY 6/5lbs. #73897 F-RED KING crustacean. 2 CRAB CLUSTERS 40lbs. #71484 F-BOILED HAIR CRAB,KEGANI #73558 F-PREMIUM SNOW CRAB COMBO MEAT 6/5lbs.
    [Show full text]
  • 2347-503X Assessment of Coastal Pollution Using Faunal Composit
    Research Chronicler, International Multidisciplinary Refereed Peer Reviewed Indexed Research Journal ISSN: Print: 2347-5021 www.research-chronicler.com ISSN: Online: 2347-503X Assessment of Coastal Pollution Using Faunal Composition of Macrobenthos from Panvel Creek, Navi Mumbai, West Coast of India Prabhakar Ramchandra Pawar,1 Leena N. Meshram,2 Sunil M. Udawant,3 Rauphunnisa F. Inamdar4 1,2,3Mahatma Phule Arts, Science & Commerce College, Panvel, Dist. – Raigad, Navi Mumbai, (M.S.) India 4Veer Wajekar Arts, Science & Commerce College, Phunde, Uran, Dist. – Raigad, Navi Mumbai, (M.S.) India Abstract Diversity of macrobenthos from Panvel creek remain poorly known. Here, the species composition and abundance of macrobenthos is explored from June 2018 to May 2019 to assess the ecological status of the creek. 18 species of macrobenthic fauna consisting of 14 genera, 12 families, 06 orders and 05 classes were recorded. The most abundant taxa were polychaetes, crustaceans, gastropods and pelecypods. Species belonging to Polynoidae, Cerithiidae, Potamididae, Neritidae and Trapezidae shows highest distribution and abundance. The creek is dominated by Perinereis cultrifera, Clypeomorus bifasciata, Potamides cingulatus, Nerita oryzarum and Neotrapezium sublaevigatum. N. sublaevigatum of the family Trapezidae from the class Bivalvia is recorded as an opportunistic taxa which exploits disturbed condition due to environmental stress. This study showed that at present though the creek is resourceful and supports the coastal marine life, is under considerable stress of anthropogenic inputs. Coastal environment of Panvel creek is deteriorating due to ongoing construction of Navi Mumbai International Airport and unplanned development activities. Present information could be helpful as a baseline data for further study of anthropogenic inputs on coastal ecosystem of Panvel creek.
    [Show full text]
  • Evaluation of Long Sea Snail Hinia Reticulata (Gastropod) from the Middle Adriatic Sea As a Possible Alternative for Human Consumption
    foods Article Evaluation of Long Sea Snail Hinia reticulata (Gastropod) from the Middle Adriatic Sea as a Possible Alternative for Human Consumption Alberto Felici 1, Nina Bilandži´c 2, Gian Enrico Magi 1, Nicolaia Iaffaldano 3 , Elisa Fiordelmondo 1 , Gerardo Doti 4 and Alessandra Roncarati 1,* 1 School of Biosciences and Veterinary Medicine, University of Camerino, Viale Circonvallazione 93-95, 62024 Matelica, MC, Italy; [email protected] (A.F.); [email protected] (G.E.M.); elisa.fi[email protected] (E.F.) 2 Department of Veterinary Public Health, Croatian Veterinary Institute, Savska C. 143, 10000 Zagreb, Croatia; [email protected] 3 Department of Agricultural, Environmental and Food Sciences, University of Molise, Via Francesco De Sanctis, 86100 Campobasso, CB, Italy; [email protected] 4 School of Architecture and Design, University of Camerino, Viale della Rimembranza, 63100 Ascoli Piceno, AP, Italy; [email protected] * Correspondence: [email protected]; Tel.: +39-0737-403416; Fax: +39-0737-403410 Received: 1 June 2020; Accepted: 6 July 2020; Published: 9 July 2020 Abstract: In mid Adriatic Sea the common sea snail is the habitual snail eaten, but over the years fishermen started to capture also the long sea snail, a possible alternative for human consumption. This study aims to compare the quality traits of the edible fraction in the common and long sea snails. In this study, common and long sea snail samples were provided by fishermen in November 2018 and March 2019. Total weight (meat and shell), fractions of meat and shell (after having extracted the edible part), fatty acid, elements in meat, and calcium content in shells were determined.
    [Show full text]
  • Checklist of Marine Gastropods Around Tarapur Atomic Power Station (TAPS), West Coast of India Ambekar AA1*, Priti Kubal1, Sivaperumal P2 and Chandra Prakash1
    www.symbiosisonline.org Symbiosis www.symbiosisonlinepublishing.com ISSN Online: 2475-4706 Research Article International Journal of Marine Biology and Research Open Access Checklist of Marine Gastropods around Tarapur Atomic Power Station (TAPS), West Coast of India Ambekar AA1*, Priti Kubal1, Sivaperumal P2 and Chandra Prakash1 1ICAR-Central Institute of Fisheries Education, Panch Marg, Off Yari Road, Versova, Andheri West, Mumbai - 400061 2Center for Environmental Nuclear Research, Directorate of Research SRM Institute of Science and Technology, Kattankulathur-603 203 Received: July 30, 2018; Accepted: August 10, 2018; Published: September 04, 2018 *Corresponding author: Ambekar AA, Senior Research Fellow, ICAR-Central Institute of Fisheries Education, Off Yari Road, Versova, Andheri West, Mumbai-400061, Maharashtra, India, E-mail: [email protected] The change in spatial scale often supposed to alter the Abstract The present study was carried out to assess the marine gastropods checklist around ecologically importance area of Tarapur atomic diversity pattern, in the sense that an increased in scale could power station intertidal area. In three tidal zone areas, quadrate provide more resources to species and that promote an increased sampling method was adopted and the intertidal marine gastropods arein diversity interlinks [9]. for Inthe case study of invertebratesof morphological the secondand ecological largest group on earth is Mollusc [7]. Intertidal molluscan communities parameters of water and sediments are also done. A total of 51 were collected and identified up to species level. Physico chemical convergence between geographically and temporally isolated family dominant it composed 20% followed by Neritidae (12%), intertidal gastropods species were identified; among them Muricidae communities [13].
    [Show full text]
  • Avaliação Da Toxicidade Do Cloridrato Polihexametileno Biguanida (PHMB) Em Biomphalaria Glabrata (Say 1818)
    UNIVERSIDADE FEDERAL DE GOIÁS PROGRAMA DE PÓS-GRADUAÇÃO EM BIOLOGIA DA RELAÇÃO PARASITO-HOSPEDEIRO Amanda de Oliveira Melo Avaliação da toxicidade do cloridrato polihexametileno biguanida (PHMB) em Biomphalaria glabrata (Say 1818) Goiânia 2018 Amanda de Oliveira Melo Avaliação da toxicidade do cloridrato polihexametileno biguanida (PHMB) em Biomphalaria glabrata (Say 1818) Dissertação de Mestrado apresentado ao Programa de Pós-Graduação em Biologia da Relação Parasito-Hospedeiro da Universidade Federal de Goiás para obtenção do Título de Mestre Orientador: Prof. Dr. José Clecildo Barreto Bezerra Coorientador: Prof. Dr. Thiago Lopes Rocha Goiânia 2018 Programa de Pós-Graduação em Biologia da Relação Parasito-Hospedeiro da Universidade Federal de Goiás BANCA EXAMINADORA DA DISSERTAÇÃO DE MESTRADO Aluna: Amanda de Oliveira Melo Orientador: Prof. Dr. José Clecildo Barreto Bezerra Coorientador: Prof. Dr. Thiago Lopes Rocha Membros: 1. Prof. Dr. José Clecildo Barreto - UFG 2. Dra. Daniella de Sousa Mendes Moreira Alves - UFG 3. Profa. Dra. Luciana Damacena Silva - UEG Data: 14/09/2018 A minha amada família, em especial aos meus pais, minha irmã e meu namorado. AGRADECIMENTOS Agradeço, primeiramente, a Deus por todas as conquistas concedidas a mim e a toda minha família para o desenvolvimento deste trabalho ao qual eu me propus realizar. Agradeço aos meus pais, Wilmar e Luciana, pelo carinho e amor. Vocês foram meus exemplos de persistência, coragem, força e determinação, sempre me incentivando a continuar e a buscar melhores resultados. A vocês todo o meu amor. Agradeço a minha irmã Natália, uma pessoa iluminada que sempre me mostrou que eu posso ir além. Agradeço ao meu namorado Luiz Claudio, que me incentivou e me apoiou em todas as minhas decisões, sempre me fazendo sorrir com sua alegria.
    [Show full text]
  • The Status of Mariculture in North China
    The Status of Mariculture in North China Chang Yaqing1,Chen Jiaxin2 (1.Key Lab of Mariculture and Biotechnology.Dalian Fisheries University,Dalian, Liaoning, 116023, P.R China;2.Yellow Sea Fisheries Research Institute Chinese Academy of Fisheries Sciences, Qingdao, Shandong,266071, P.R China) Introduction China has a long history of mariculture production. The mariculture industry in China has obtained break through in the all artificial nursery and cultural technique of shrimps, mollusca and fishes of high commercial value since 1950s, which has advanced the development of mariculture industry. The first major development was seaweed culture during 1950s, prompted by breakthroughs in breeding technology. By the end of the 1970s, annual seaweed production reached 250,000 metric tons in dry weight ( approximately 1.5million tons of fresh seaweed ). Shrimp culture developed during the 1980s because of advances in hatchery technology and economic reform policies. Annual shrimp production reached 210,000 tons in 1992. Disease outbreaks since 1993, however, have reduced shrimp production by about two-thirds. Mariculture production increased steadily between 1954 and 1985, but has been exponential since 1986, mostly driven by molluscan culture. Molluscan 1 culture in China began to expand beyond the four traditional species: oyster,cockle,razor clam and ruditapes clam in the 1970s,Mussel culture was the first new industry to emerge ,followed by scallop aquaculture in 1980s. Abalone culture has become a major industry in 1990s. Traditional oyster and clam cultures have also advanced and expanded in recent years.Now more than 30 species of marine mollusks are cultured commercially in China. Because of the rapid development in recent years, molluscan culture has become the largest sector of the Chinese mariculture industry, accounting for 81% of the total production in weight.
    [Show full text]
  • Some Economically Important Bivalves and Gastropods Found in the Island of Hadji Panglima Tahil, in the Province of Sulu, Philippines
    International Research Journal of Biological Sciences ___________________________________ ISSN 2278-3202 Vol. 2(7), 30-36, July (2013) Int. Res. J. Biological Sci. Some Economically Important Bivalves and Gastropods found in the Island of Hadji Panglima Tahil, in the province of Sulu, Philippines Sharon Rose M. Tabugo 1, Jocelyn O. Pattuinan 1, Nathanie Joy J. Sespene 1 and Aldren J. Jamasali 2 1Department of Biological Sciences,College of Science and Mathematics, MSU-Iligan Institute of Technology, Iligan City 2Mindanao State University- Jolo, SULU Available online at: www.isca.in Received 17th April 2013, revised 26 th April 2013, accepted 4th May 2013 Abstract The Philippines is a haven of a rich diversity of marine organisms. Unraveling this diversity had posed a tremendous challenge. The existing security threat in some areas of the archipelago had led to a dearth of information with regard to the diversity of organisms especially the islands located in the province of Sulu. Marine mollusc studies are still among those that are overseen by many researchers. To date, there is still a lack of basic information such as diversity and species checklist that make it impossible to assess the rate of population lost among existing marine molluscs. There is no published information on the actual number of marine shelled molluscan species in the area. This work assessed, described and identified some economically important molluscs in the island of Hadji Panglima Tahil, in the province of Sulu, Philippines. There were a total of 18 molluscs (marine bivalves & gastropods) species found and identified in the island. The molluscs served as food, ornaments and as source of livelihood by residents in the area, which is separated by sea from Jolo, the capital municipality of the province.
    [Show full text]
  • MOLECULAR PHYLOGENY of the NERITIDAE (GASTROPODA: NERITIMORPHA) BASED on the MITOCHONDRIAL GENES CYTOCHROME OXIDASE I (COI) and 16S Rrna
    ACTA BIOLÓGICA COLOMBIANA Artículo de investigación MOLECULAR PHYLOGENY OF THE NERITIDAE (GASTROPODA: NERITIMORPHA) BASED ON THE MITOCHONDRIAL GENES CYTOCHROME OXIDASE I (COI) AND 16S rRNA Filogenia molecular de la familia Neritidae (Gastropoda: Neritimorpha) con base en los genes mitocondriales citocromo oxidasa I (COI) y 16S rRNA JULIAN QUINTERO-GALVIS 1, Biólogo; LYDA RAQUEL CASTRO 1,2 , Ph. D. 1 Grupo de Investigación en Evolución, Sistemática y Ecología Molecular. INTROPIC. Universidad del Magdalena. Carrera 32# 22 - 08. Santa Marta, Colombia. [email protected]. 2 Programa Biología. Universidad del Magdalena. Laboratorio 2. Carrera 32 # 22 - 08. Sector San Pedro Alejandrino. Santa Marta, Colombia. Tel.: (57 5) 430 12 92, ext. 273. [email protected]. Corresponding author: [email protected]. Presentado el 15 de abril de 2013, aceptado el 18 de junio de 2013, correcciones el 26 de junio de 2013. ABSTRACT The family Neritidae has representatives in tropical and subtropical regions that occur in a variety of environments, and its known fossil record dates back to the late Cretaceous. However there have been few studies of molecular phylogeny in this family. We performed a phylogenetic reconstruction of the family Neritidae using the COI (722 bp) and the 16S rRNA (559 bp) regions of the mitochondrial genome. Neighbor-joining, maximum parsimony and Bayesian inference were performed. The best phylogenetic reconstruction was obtained using the COI region, and we consider it an appropriate marker for phylogenetic studies within the group. Consensus analysis (COI +16S rRNA) generally obtained the same tree topologies and confirmed that the genus Nerita is monophyletic. The consensus analysis using parsimony recovered a monophyletic group consisting of the genera Neritina , Septaria , Theodoxus , Puperita , and Clithon , while in the Bayesian analyses Theodoxus is separated from the other genera.
    [Show full text]
  • Spermatogenesis and Sperm Ultrastructure in the Land Slug Limax Flavus (Gastropoda, Pulmonata) from Egypt
    Advances in Biological Research 7 (6): 253-265, 2013 ISSN 1992-0067 © IDOSI Publications, 2013 DOI: 10.5829/idosi.abr.2013.7.6.76164 Spermatogenesis and Sperm Ultrastructure in the Land Slug Limax flavus (Gastropoda, Pulmonata) from Egypt Irene Sameh Gamil Department of Zoology and Entomology, Faculty of Science, Helwan University, Cairo, Egypt Abstract: Spermatogenesis and sperm ultrastructure are examined and described for the first time in the garden slug Limax flavus (Gastropoda, Pulmonata, Stylommatophora) in Egypt. Spermatogonia show round nuclei with patchy heterochromatin. The primary spermatocytes are characterized by the presence of synaptonemal complexes. The secondary spermatocytes are reduced in size and contain less cytoplasm and clustered stacks of Golgian cisternae with small proacrosomal vesicles lying close to them. During spermiogenesis, electron-dense plaques develop at both the future anterior and posterior poles of the nuclear surface. These plaques determine the apparent antero-posterior axis of the spermatid, the distal plaque indicates the future anterior part of the cell and the basal one the posterior part where an abundant number of mitochondria are aggregated. The mature spermatozoon shows the characteristic sperm features: an acrosomal vesicle supported by an acrosomal pedestal; a helically keeled nucleus, a neck region and a complex elongate middle piece featuring paracrystalline and matrix layers sheathing the axoneme, coarse fibers and glycogen helices. Key words: Spermiogenesis Spermatozoa Hermaphrodite snail Mollusca Pulmonate INTRODUCTION study, a detailed description of spermatogenesis process till the formation of mature autospermatozoa The bulk of the land Gastropoda consists of is presented. Studies on the spermatozoa and Pulmonata including the most important order spermatogenesis have been used extensively to Stylommatophora which is one of the most diverse and explore taxonomic and phylogenetic relationships of economically significant groups of living molluscs [1].
    [Show full text]
  • Marine Peptides: Bioactivities and Applications
    Mar. Drugs 2015, 13, 4006-4043; doi:10.3390/md13074006 OPEN ACCESS marine drugs ISSN 1660-3397 www.mdpi.com/journal/marinedrugs Review Marine Peptides: Bioactivities and Applications Randy Chi Fai Cheung *, Tzi Bun Ng * and Jack Ho Wong * School of Biomedical Sciences, Faculty of Medicine, the Chinese University of Hong Kong, Hong Kong, China * Authors to whom correspondence should be addressed; E-Mails: [email protected] (R.C.F.C.); [email protected] (T.Z.N.); [email protected] (J.H.W.); Tel.: +852-39438031 (R.C.F.C.); +852-39436872 (T.Z.N.); +852-39438031 (J.H.W.); Fax: +852-26035123. Academic Editor: Kellie L. Tuck Received: 30 April 2015 / Accepted: 18 June 2015 / Published: 29 June 2015 Abstract: Peptides are important bioactive natural products which are present in many marine species. These marine peptides have high potential nutraceutical and medicinal values because of their broad spectra of bioactivities. Their antimicrobial, antiviral, antitumor, antioxidative, cardioprotective (antihypertensive, antiatherosclerotic and anticoagulant), immunomodulatory, analgesic, anxiolytic anti-diabetic, appetite suppressing and neuroprotective activities have attracted the attention of the pharmaceutical industry, which attempts to design them for use in the treatment or prevention of various diseases. Some marine peptides or their derivatives have high commercial values and had reached the pharmaceutical and nutraceutical markets. A large number of them are already in different phases of the clinical and preclinical pipeline. This review highlights the recent research in marine peptides and the trends and prospects for the future, with special emphasis on nutraceutical and pharmaceutical development into marketed products. Keywords: bioactive; marine peptides; nutraceuticals; pharmaceuticals 1.
    [Show full text]