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FEEDING ECOLOGY of Pachypterus Atherinoides (Actinopterygii; Siluriformes; Schil- Beidae): a SMALL FRESHWATER FISH from FLOODPLAIN WETLANDS of NORTHEAST INDIA
Croatian Journal of Fisheries, 2020, 78, 105-120 B. Gogoi et al. (2020): Trophic dynamics of Pachypterus atherinoides DOI: 10.2478/cjf-2020-0011 CODEN RIBAEG ISSN 1330-061X (print) 1848-0586 (online) FEEDING ECOLOGY OF Pachypterus atherinoides (Actinopterygii; Siluriformes; Schil- beidae): A SMALL FRESHWATER FISH FROM FLOODPLAIN WETLANDS OF NORTHEAST INDIA Budhin Gogoi1, Debangshu Narayan Das2, Surjya Kumar Saikia3* 1 North Bank College, Department of Zoology, Ghilamara, Lakhimpur, Assam, India 2 Rajiv Gandhi University, Department of Zoology, Fishery and Aquatic ecology Laboratory, Itanagar, India 3 Visva Bharati University, Department of Zoology, Aquatic Ecology and Fish Biology Laboratory, Santiniketan, Bolpur, West Bengal, India *Corresponding Author, Email: [email protected] ARTICLE INFO ABSTRACT Received: 12 November 2019 The feeding ecology of Pachypterus atherinoides was investigated for Accepted: 4 May 2020 two consecutive years (2013-2015) from floodplain wetlands in the Subansiri river basin of Assam, North East India. The analysis of its gut content revealed the presence of 62 genera of planktonic life forms along with other animal matters. The organization of the alimentary tract and maximum Relative Mean Length of Gut (0.511±0.029 mm) indicated its carnivorous food habit. The peak gastro-somatic index (GSI) in winter-spring seasons and summer-rainy seasons indicated alteration of its feeding intensity. Furthermore, higher diet breadth on resource use (Levins’ and Hurlbert’s) with zooplankton compared to phytoplankton and Keywords: total plankton confirmed its zooplanktivore habit. The feeding strategy Diet breadth plots also suggested greater preference to zooplankton compared to Feeding strategy phytoplankton. The organization of its gill rakers specified a secondary Pachypterus atherinoides modification of gut towards either carnivory or specialized zooplanktivory. -
Purification of Glucose 6-Phosphate Dehydrogenase From
MARINE SCIENCE AND TECHNOLOGY BULLETIN VOLUME: 9 ISSUE: 2 DECEMBER 2020 Editor-in-Chief Adem Yavuz Sönmez Kastamonu University, Turkey Co-Editor Semih Kale Çanakkale Onsekiz Mart University, Turkey Section Editors Soner Bilen Kastamonu University, Turkey Ertuğrul Terzi Kastamonu University, Turkey Ali Eslem Kadak Kastamonu University, Turkey Gökhan Arslan Atatürk University, Turkey Statistics Editor Aycan Mutlu Yağanoğlu Atatürk University, Turkey Foreign Language Editor Muhammet Sinan Alpsoy Kastamonu University, Turkey Editorial Board Agus Oman Sudrajat Institut Pertanian Bogor, Indonesia Anca Nicoleta Şuţan University of Piteşti, Romania Antanas Kontautas Klaipeda University, Lithuania Arya Vazirzadeh Shiraz University, Iran Barış Bayraklı Sinop University, Turkey Derya Güroy Yalova University, Turkey Fazıl Şen Yüzüncü Yıl University, Turkey Gouranga Biswas Kakdwip Research Centre of Central Institute, India Hasan Hüseyin Atar Ankara University, Turkey İlhan Altınok Karadeniz Technical University, Turkey Liliana Török Danube Delta National Institute for Research & Development, Romania Mahmut Elp Kastamonu University, Turkey Marina Alexandrovna Sazykina Southern Federal University, Russia Mehmet Gökoğlu Akdeniz University, Turkey Muhammad Naeem Khan University of the Punjab, Pakistan Sajmir Beqiraj University of Tirana, Albania Sefa Acarlı Çanakkale Onsekiz Mart University, Turkey Sitti Zayda B. Halun Mindanao State University, Philippines Sonya Uzunova Institute of Fishing Resources, Bulgaria Süleyman Özdemir Sinop University, Turkey -
(Pladiga) 2020
PLADIGA 2020 MEMORIA Mayo 2020 MEMORIA PLADIGA 2020 ÍNDICE PLADIGA 2020 1. FUNDAMENTOS .......................................................................................................................................... 6 1.1. JUSTIFICACIÓN ....................................................................................................................... 6 1.2. MARCO LEGAL ....................................................................................................................... 7 1.3. OBJETO ................................................................................................................................ 12 1.4. FUNCIONES BÁSICAS ............................................................................................................ 12 1.5. ANTECEDENTES.................................................................................................................... 12 1.6. ÁMBITO DE APLICACIÓN ....................................................................................................... 13 1.7. MEDIOS ADSCRITOS AL PLADIGA ...................................................................................... 13 1.8. CLASIFICACIÓN DE LOS INCENDIOS EN FUNCIÓN DEL ÍNDICE DE GRAVEDAD POTENCIAL Y SITUACIONES OPERATIVAS ................................................................................................... 14 1.9. ESQUEMA DE INCENDIO FORESTAL ....................................................................................... 18 2. OBJETIVOS DEL PLADIGA ..................................................................................................................... -
The Parasitic Dinoflagellate Hematodinium Infects Marine Crustaceans
Marine Life Science & Technology (2021) 3:313–325 https://doi.org/10.1007/s42995-020-00061-z REVIEW The parasitic dinofagellate Hematodinium infects marine crustaceans Caiwen Li1,2,3,4 · Meng Li1,2 · Qian Huang1,4 Received: 27 April 2020 / Accepted: 8 July 2020 / Published online: 2 January 2021 © Ocean University of China 2021 Abstract Hematodinium is a type of parasitic dinofagellate that infects marine crustaceans globally. The parasite lives mainly in the hemolymph or hemocoels of afected hosts, and results in mortalities due to malfunction or loss of functions of major organs. In recent years, the parasite had developed into an emerging epidemic pathogen not only afecting wild populations of economically valuable marine crustaceans in western countries but also the sustainable yield of aquaculture of major crabs in China. The epidemics of the parasitic diseases expanded recently in the coastal waters of China, and caused frequent outbreaks in aquaculture of major crab species, especially Portunus trituberculatus and Scylla paramamosain. In addition, the pathogen infected two species of co-cultured shrimps and multiple cohabitating wild crabs, implying it is a signifcant threat to the sustainable culture of commercially valuable marine crustaceans. In particular, the polyculture system that is widely used along the coast of China may facilitate the spread and transmission of the pathogen. Thus, to provide a better understanding of the biological and ecological characteristics of the parasitic dinofagellate and highlight important direc- tions for future research, we have reviewed the current knowledge on the taxonomy, life cycle, pathogenesis, transmission and epidemiology of Hematodinium spp. Moreover, ecological countermeasures have been proposed for the prevention and control of the emerging infectious disease. -
And Polyfluoroalkyl Substances (Pfass)
Food and Chemical Toxicology 127 (2019) 280–287 Contents lists available at ScienceDirect Food and Chemical Toxicology journal homepage: www.elsevier.com/locate/foodchemtox Do conventional cooking methods alter concentrations of per- and T polyfluoroalkyl substances (PFASs) in seafood? ∗ Matthew D. Taylora,b, , Sandra Nilssonb, Jennifer Bräunigb, Karl C. Bowlesc, Victoria Colea, Natalie A. Moltschaniwskyja, Jochen F. Muellerb a Port Stephens Fisheries Institute, New South Wales Department of Primary Industries, Locked Bag 1, Nelson Bay, NSW, 2315, Australia b The University of Queensland, Queensland Alliance for Environmental Health Sciences, 20 Cornwall Street, Woolloongabba, QLD, 4102, Australia c RPS AAP Consulting Pty Ltd, 255 Pitt St, Sydney, NSW, 2000, Australia ARTICLE INFO ABSTRACT Keywords: Per-and poly-fluoroalkyl substances (PFASs) are bioaccumulative chemicals of emerging concern. Some PFASs Human health accumulate in seafood, and can contribute to dietary exposure. Previous work has suggested cooking seafood Tolerable daily intake decreases concentrations of neutral organic contaminants, however, previous studies dealing with PFASs have PFOS shown conflicting results. In this study, the potential changes of PFAS concentrations as a result of boiling,frying Bioaccumulation and baking are systematically examined. Blue Swimmer Crab (Portunus armatus), Dusky Flathead (Platycephalus fuscus) and School Prawn (Metapenaeus macleayi) were obtained from near a known PFAS point source and a reference location (affected by diffuse sources). Raw and cooked samples were analysed for commonly found PFASs. Of 23 target analytes, PFOS was the most frequently detected compound. PFOS, PFHxS and PFOA concentrations in School Prawn effectively doubled after boiling, and PFOS increased when Dusky Flathead was baked. There was no significant difference in PFOS concentration when Dusky Flathead was fried, orwhenthe Blue Swimmer Crab was boiled. -
Fish, Various Invertebrates
Zambezi Basin Wetlands Volume II : Chapters 7 - 11 - Contents i Back to links page CONTENTS VOLUME II Technical Reviews Page CHAPTER 7 : FRESHWATER FISHES .............................. 393 7.1 Introduction .................................................................... 393 7.2 The origin and zoogeography of Zambezian fishes ....... 393 7.3 Ichthyological regions of the Zambezi .......................... 404 7.4 Threats to biodiversity ................................................... 416 7.5 Wetlands of special interest .......................................... 432 7.6 Conservation and future directions ............................... 440 7.7 References ..................................................................... 443 TABLE 7.2: The fishes of the Zambezi River system .............. 449 APPENDIX 7.1 : Zambezi Delta Survey .................................. 461 CHAPTER 8 : FRESHWATER MOLLUSCS ................... 487 8.1 Introduction ................................................................. 487 8.2 Literature review ......................................................... 488 8.3 The Zambezi River basin ............................................ 489 8.4 The Molluscan fauna .................................................. 491 8.5 Biogeography ............................................................... 508 8.6 Biomphalaria, Bulinis and Schistosomiasis ................ 515 8.7 Conservation ................................................................ 516 8.8 Further investigations ................................................. -
1 an Annotated Checklist of the Chondrichthyans of South Africa 1 2 3
1 An annotated checklist of the chondrichthyans of South Africa 2 3 4 DAVID A. EBERT1, 2, 3, 6, SABINE P. WINTNER4 & PETER M. KYNE5 5 6 1 Pacific Shark Research Center, Moss Landing Marine Laboratories, Moss Landing, 7 USA 8 2 South African Institute for Aquatic Biodiversity, Grahamstown, South Africa 9 3 Department of Ichthyology, California Academy of Sciences, San Francisco, USA 10 4 University of KwaZulu-Natal, School of Life Sciences, Durban, South Africa 11 5 Research Institute for the Environment and Livelihoods, Charles Darwin University, 12 Darwin, Australia 13 14 6 Corresponding author: E-mail: [email protected] 15 16 David A. Ebert ORCID ID 0000-0003-4604-8192 17 Sabine P. Wintner ORCID ID 0000-0001-7350-5999 18 Peter M. Kyne ORCID ID 0000-0003-4494-2625 19 20 21 1 1 Abstract 2 3 An annotated checklist of chondrichthyan fishes (sharks, batoids, and chimaeras) 4 occurring in South African waters is presented. The checklist is the result of decades of 5 research and on-going systematic revisions of the regional fauna. The chondrichthyan 6 fauna of South Africa is one of the richest in the world with 191 species, comprising 50 7 families and 103 genera. It consists of 30 families, 64 genera, and 111 species of sharks; 8 17 families, 36 genera, and 72 species of batoids; and, 3 families, 5 genera, and 8 species 9 of chimaeras. The most species-rich shark families are the whaler sharks Carcharhinidae 10 with 20 species followed by the deepwater catsharks Pentanchidae with 13 species. -
Murray Cod (Maccullochella Peelii Peelii)
Murray Cod (Maccullochella peelii peelii) Qifeng Ye, G. Keith Jones, and Bryan E. Pierce November 2000 Fishery Assessment Report to PIRSA for the Inland Waters Fishery Management Committee South Australian Fisheries Assessment Series 2000/17 Murray cod (Maccullochella peelii peelii) Murray Cod (Maccullochella peelii peelii) Qifeng Ye, G. Keith Jones, and Bryan E. Pierce November 2000 Fishery Assessment Report to PIRSA for the Inland Waters Fishery Management Committee South Australian Fisheries Assessment Series 2000/17 Murray cod (Maccullochella peelii peelii) i TABLE OF CONTENTS LIST OF TABLES.................................................................................................................................II LIST OF FIGURES............................................................................................................................. III ACKNOWLEDGMENTS..................................................................................................................... V 1. EXECUTIVE SUMMARY ................................................................................................................ 1 2. BACKGROUND................................................................................................................................. 5 2.1. FISHERY ......................................................................................................................................... 5 2.1.1. History ................................................................................................................................... -
Findings and Recommendations of Effectiveness of the West Hawai'i Regional Fishery Management Area (WHRFMA)
Report to the Thirtieth Legislature 2020 Regular Session Findings and Recommendations of Effectiveness of the West Hawai'i Regional Fishery Management Area (WHRFMA) Prepared by: Department of Land and Natural Resources Division of Aquatic Resources State of Hawai'i In response to Section 188F-5, Hawaiʹi Revised Statutes November 2019 Findings and Recommendations of Effectiveness of the West Hawai'i Regional Fishery Management Area (WHRFMA) CORRESPONDING AUTHOR William J. Walsh Ph.D., Hawai′i Division of Aquatic Resources CONTRIBUTING AUTHORS Stephen Cotton, M.S., Hawai′i Division of Aquatic Resources Laura Jackson, B. S., Hawai′i Division of Aquatic Resources Lindsey Kramer, M.S., Hawai′i Division of Aquatic Resources, Pacific Cooperative Studies Unit Megan Lamson, M.S., Hawai′i Division of Aquatic Resources, Pacific Cooperative Studies Unit Stacia Marcoux, M.S., Hawai′i Division of Aquatic Resources, Pacific Cooperative Studies Unit Ross Martin B.S., Hawai′i Division of Aquatic Resources, Pacific Cooperative Studies Unit Nikki Sanderlin. B.S., Hawai′i Division of Aquatic Resources ii PURPOSE OF THIS REPORT This report, which covers the period between 2015 - 2019, is submitted in compliance with Act 306, Session Laws of Hawai′i (SLH) 1998, and subsequently codified into law as Chapter 188F, Hawaiʹi Revised Statutes (HRS) - West Hawai'i Regional Fishery Management Area. Section 188F-5, HRS, requires a review of the effectiveness of the West Hawai′i Regional Fishery Management Area shall be conducted every five years by the Department of Land and Natural Resources (DLNR), in cooperation with the University of Hawai′i (Section 188F-5 HRS). iii CONTENTS PURPOSE OF THIS REPORT ................................................................................................. -
SPC Beche-De-Mer Information Bulletin Has 13 Original S.W
ISSN 1025-4943 Issue 36 – March 2016 BECHE-DE-MER information bulletin Inside this issue Editorial Rotational zoning systems in multi- species sea cucumber fisheries This 36th issue of the SPC Beche-de-mer Information Bulletin has 13 original S.W. Purcell et al. p. 3 articles relating to the biodiversity of sea cucumbers in various areas of Field observations of sea cucumbers the western Indo-Pacific, aspects of their biology, and methods to better in Ari Atoll, and comparison with two nearby atolls in Maldives study and rear them. F. Ducarme p. 9 We open this issue with an article from Steven Purcell and coworkers Distribution of holothurians in the on the opportunity of using rotational zoning systems to manage shallow lagoons of two marine parks of Mauritius multispecies sea cucumber fisheries. These systems are used, with mixed C. Conand et al. p. 15 results, in developed countries for single-species fisheries but have not New addition to the holothurian fauna been tested for small-scale fisheries in the Pacific Island countries and of Pakistan: Holothuria (Lessonothuria) other developing areas. verrucosa (Selenka 1867), Holothuria cinerascens (Brandt, 1835) and The four articles that follow, deal with biodiversity. The first is from Frédéric Ohshimella ehrenbergii (Selenka, 1868) Ducarme, who presents the results of a survey conducted by an International Q. Ahmed et al. p. 20 Union for Conservation of Nature mission on the coral reefs close to Ari A checklist of the holothurians of Atoll in Maldives. This study increases the number of holothurian species the far eastern seas of Russia recorded in Maldives to 28. -
Survey Guidelines for Australia's Threatened Fish
Survey guidelines for Australia’s threatened fish Guidelines for detecting fish listed as threatened under the Environment Protection and Biodiversity Conservation Act 1999 Authorship and acknowledgments This report updates and expands on a report prepared in May 2004 by Australian Museum ichthyologist John Pogonoski and approved by AMBS Senior Project Manager Jayne Tipping. The current (2011) report includes updates to the 2004 report and additional information regarding recently listed species, current knowledge of all the listed species and current survey techniques. This additional information was prepared by Australian Museum ichthyologists Dr Doug Hoese and Sally Reader. Technical assistance was provided by AMBS ecologists Mark Semeniuk and Lisa McCaffrey. AMBS Senior Project Manager Glenn Muir co- ordinated the project team and reviewed the final report. These guidelines could not have been produced without the assistance of a number of experts. Individuals who have shared their knowledge and experience for the purpose of preparing this report are indicated in Appendix A. Disclaimer The views and opinions contained in this document are not necessarily those of the Australian Government. The contents of this document have been compiled using a range of source materials and while reasonable care has been taken in its compilation, the Australian Government does not accept responsibility for the accuracy or completeness of the contents of this document and shall not be liable for any loss or damage that may be occasioned directly or indirectly through the use of or reliance on the contents of the document. © Commonwealth of Australia 2011 This work is copyright. You may download, display, print and reproduce this material in unaltered form only (retaining this notice) for your personal, non-commercial use or use within your organisation. -
Southern Lanternshark, Etmopterus Baxteri
Published Date: 1 March 2019 Southern Lanternshark, Etmopterus baxteri Report Card Sustainable assessment IUCN Red List IUCN Red List Refer to Global Australian Global Least Concern Assessment Assessment Assessment Assessors Kyne, P.M. & Paul, L.J. Long lived deepwater shark taken as bycatch but currently with some Report Card Remarks refuge from fishing pressure, although bycatch should be monitored Summary The Southern Lanternshark is a moderately Source: CSIRO Marine and Atmospheric Research 2015 common, deepwater shark that occurs off southern Australia and New Zealand. The species is a common bycatch of Orange Roughy (Hoplostethus atlanticus) and Oreo deepwater fisheries. Most areas of southern Australia below 700 m depth are closed to deepwater fishing, offering it refuge from incidental capture. The species currently has refuge from fishing pressure in areas. Therefore, the species is assessed as Least Concern (IUCN) and in Australia, Sustainable (SAFS). Distribution The Southern Lanternshark occurs in Australia off southern New South Wales, Victoria and Tasmania, including seamounts to the south (Last and Stevens 2009). In New Zealand it is abundant on the south Chatham Rise, east of New Zealand (Dunn et al. 2013). Distribution records from anywhere other than Australia and New Zealand are based on a former misidentification of Etmopterus granulosus (also called Southern Lanternshark) (Ebert et al. 2013). Stock structure and status There is currently no information on population size, structure, or trend for the species. Fisheries In Australia, it was a moderate bycatch in some deepwater fisheries because its depth range coincided, in part, with that of some commercially important teleosts such as Orange Roughy.