Improving the Information Base for Aquatic Genetic Resources for the State of the World’S Aquatic Genetic Resources
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Cynoglossus Westraliensis, a New Species of Tonguesole from Western Australia (Teleostei: Cynoglossidae)
FishTaxa (2019) 4(2): 31-40 Journal homepage: www.fishtaxa.com © 2019 FISHTAXA. All rights reserved Cynoglossus westraliensis, a new species of tonguesole from Western Australia (Teleostei: Cynoglossidae) Ronald FRICKE* Im Ramstal 76, 97922 Lauda-Königshofen, Germany. Corresponding author: *E-mail: [email protected] Abstract The Western Australian deep-water tonguesole Cynoglossus westraliensis n. sp. is described from off North West Cape, Western Australia, based on two specimens collected at a depth of 250 metres. The new species is characterised within the Cynoglossus carpenteri species group by the snout relatively long, bluntly rounded; head length 21-25% of SL, snout length 9.3-11.6% of SL (43.4-46.5% of HL); eyes not contiguous; corner of mouth nearer to posterior edge of opercle than to tip of snout; ocular side with 3 lateral lines, midlateral-line scales 111-115, scale rows between midlateral and dorsolateral lines 20, blind side without lateral lines; ctenoid scales on ocular side, cycloid scales on blind side; dorsal-fin-rays 120-126; anal-fin rays 105-106; caudal-fin rays 8; gill chamber and peritoneum black. A key to the species of the Cynoglossus carpenteri species-group is presented. Keywords: Tonguesole, Cynoglossidae, Western Australia, New species, Identification key, Distribution. Zoobank: urn:lsid:zoobank.org:pub:C72DC2E5-9875-4DA0-9313-7967FB81C5C9 urn:lsid:zoobank.org:act:97081CA2-8CBA-4D70-8732-8BEA54017555 Introduction Tonguesoles of the family Cynoglossidae are small to medium sized benthic fishes, which are common in marine waters from tidal pools to the continental shelf and upper slope to a maximum depth of 1,500 m (Munroe 2001). -
Taxonomical Identification and Diversity of Flat Fishes from Mudasalodai Fish Landing Centre (Trawl by Catch), South East Coast of India
ISSN: 2642-9020 Review Article Journal of Marine Science Research and Oceanography Taxonomical Identification and Diversity of Flat Fishes from Mudasalodai Fish Landing Centre (Trawl by Catch), South East Coast of India Gunalan B* and E Lavanya *Corresponding author B Gunalan, PG & Research Department of Zoology, Thiru Kollanjiyapar PG & Research Department of Zoology, Thiru Kollanjiyapar Government Arts College, Viruthachalam. Cuddalore-Dt, Tamilnadu, India Government Arts College, Viruthachalam Submitted: 31 Jan 2020 Accepted: 05 Feb 2020; Published: 07 Mar 2020 Abstract Bycatch and discards are common and pernicious problems faced by all fisheries globally. It is recognized as unavoidable in any kind of fishing but the quantity varies according to the gear operated. In tropical countries like India, bycatch issue is more complex due to the multi-species and multi-gear nature of the fisheries. Among the different fishing gears, trawling accounts for a higher rate of bycatch, due to comparatively low selectivity of the gear. A study was conducted during June 2018 - Dec 2019 in the Mudasalodai fish landing centre, southeast coast of India. During the study period six sp. of flat fishes collected and identified taxonomically. Keywords: Flat fish, tongue fish, sole fish, bycatch, fish landing, waters of Parangipettai. The study was conducted for a period of diversity, taxonomy one and half year (June 2018 - Dec 2019), no sampling was done in the month of May, due to the fishing holiday in the coast of Introduction Tamil Nadu. The collected flat fishes were kept in ice boxes and Fish forms an important source of food and is man’s important transferred to the laboratory and washed in tap water. -
Three Simple Rules for High Catches, High Profits and Healthy Ecosystems
Three simple rules for high catches, high profits and healthy ecosystems Position paper for the round-table discussion Towards a Sustainable Fishery Sector Block 2, Interactions between Fisheries and Nature, Wednesday 23 June 2021 by Rainer Froese, GEOMAR, Kiel, Germany, [email protected] Rule 1: Do not take out more than is regrown Taking out more than is regrown is called overfishing and will shrink the fished stock below levels that can produce the maximum longterm catch (MSY). Despite the legal obligation to end overfishing in 2020, the total allowed catches (TACs) for about 40% of the stocks with suitable data in the North Sea and adjacent waters constituted overfishing (1). Overfishing is stupid: with overfishing, more effort = money is spent to get lower catches than possible at lower value and with unnecessarily high impacts on the ecosystem. The lower value is caused by overfishing shrinking the mean size of the fish and smaller fish bring lower price per kg. Impact is unnecessary high because better catches can be obtained from non- overfished stocks with less gear deployment, therefore less by-catch and less physical impact. To end overfishing, catches have to be reduced for 1-4 years, depending on current stock size. The loss caused by such reduced catches is easily regained within a few years after rebuilt stock size allows for permanent high catches at e.g. 90% of the MSY level. The 90% MSY is needed for stability; with fishing at MSY, there is a 50% chance of shrinking the stock below the MSY level and thus reducing future catches. -
Structure and Dynamics of Demersal Assemblages on the Continental Shelf and Upper Slope Off Ghana, West Africa
MARINE ECOLOGY PROGRESS SERIES Vol. 220: 1–12, 2001 Published September 27 Mar Ecol Prog Ser Structure and dynamics of demersal assemblages on the continental shelf and upper slope off Ghana, West Africa Kwame A. Koranteng* Marine Fisheries Research Division, PO Box BT-62, Tema, Ghana ABSTRACT: Using two-way indicator species analysis and detrended correspondence analysis, species on the continental shelf and upper slope of Ghana were classified into 6 assemblages. The structure of the assemblages is determined primarily by depth and type of sediment on the seabed. There are clear faunal discontinuities around 30–40, 100 and 200 m depth. The dynamics of the assemblages are influenced by physico-chemical parameters of the water masses, mainly tempera- ture, salinity and dissolved oxygen, which are periodically modified by the seasonal coastal upwelling that occurs in the area. The observed changes in the composition and relative importance of species in the assemblages can be related to increased fishing activity and environmental forcing. KEY WORDS: Species assemblages · Structure and dynamics · Continental shelf and slope · Ghana Resale or republication not permitted without written consent of the publisher INTRODUCTION nental shelf using data from the Guinean Trawling Survey (Williams 1968). In fisheries, defining the aggregation of species in In the last 3 decades, significant changes have the ecosystem is the basis for managing species by the occurred in the biological and physical components of management unit approach (Tyler et al. 1982). Caddy the Gulf of Guinea marine ecosystem and in nearshore & Sharp (1986) also pointed out that such studies are forcing factors that could have an effect on species necessary to gain a better understanding of multi- aggregations in the sub-region (Koranteng 1998). -
Production and Maximum Sustainable Yield of Fisheries Activity in Hulu Sungai Utara Regency
E3S Web of Conferences 147, 02008 (2020) https://doi.org/10.1051/e3sconf/202014702008 3rd ISMFR Production and Maximum Sustainable Yield of fisheries activity in Hulu Sungai Utara Regency Aroef Hukmanan Rais* and Tuah Nanda Merlia Wulandari Balai Riset Perikanan Perairan Umum dan Penyuluhan Perikanan, Jln. Gub. HA Bastari, No.08 Jakabaring, Palembang, Indonesia Abstract. Production and fishing activities of inland waters in the Hulu Sungai Utara Regency (HSU) have a large contribution to fulfill the food needs for the local people in South Borneo. A total of 65% of the inland waters in the HSU Regency are floodplains. This research aimed to describe the production of capture fisheries products from 2010 to 2016, the catch per unit of effort (CPUE), the estimation of maximum sustainable (MSY), the biodiversity of fish species in the flood plain waters of Hulu Sungai Utara Regency (HSU). Research and field data collection was carried out throughout 2016, by collecting fishing gears and catch data from fishermen at Tampakang Village and Palbatu Village. The highest fish production was found in 2014, which reached a value of 2053 tons/year, and tended to decline in the following year. The highest catch per unit of effort per year was found to be in 2014 (151.65 tons/effort), and significantly dropped in 2016 (36.05 tons/effort). The Maximum Sustainable Yield (MSY) analysis obtained a value of 2103.13 tons/year with an effort value of 16.57 for standard fishing gear. The research identified 31 species of fish and the largest composition was baung (Mystusnemurus) and Nila (Tilapia nilotica). -
Food and Feeding Habits of Malabar Sole Cynoglossus Macrostomus Norman
J. mar. biol. Ass. India, 2000, 42 (1&2) : 124 - 134 Food and Feeding habits of Malabar sole Cynoglossus macrostomus Norman A. A. Jayaprakash Central Marine Fisheries Research Institute, Kochi - 682 014 Abstract The food and feeding habits of Malabar sole Cynoglossus macrostomus Norman occurring along the coastal seas off Kerala were studied both qualitatively and quantitatively during 1994-96. The samples for the study were collected from three widely located centres like Cochin, Ambalapuzha and Neendakara. The fish mainly adapted to a bottom habitat feeds on polychaetes and detritus, amphipods, copepods, small molluscs and foraminifera. Active feed- ing was found immediately after spawining during October - November and February March. There was not much difference in the forage items noticed at different centres. Since the detritus is an important food component followed by other macrobenthos the fish can safely be placed between trophic level I and 11. Introduction Cynoglossus lingua; Devadoss and Pillai Investigations on the food and feeding (1973), Devadoss et a1 (1977), Ramanathan habits of fishes have traditionally been and Natarajan (1980) and Ramanathan important in fishery biological studies since et a1 (1977) on other flatfish species. food is one of the key factors that pro- Among the flatfishes, only few species foundly influence the shoaling, behaviour, like the Malabar sole support a fishery of migration, condition and even the fishery. commercial importance. The species con- The Pleuronectids, comprising the flatfishes tributed nearly 95% of the total 25,000 t by virtue of their body form and bottom of flatfishes landed in Kerala. Apart from habitat have attracted the attention of the studies on the food and feeding habits many workers. -
Welcome to Fishbase
Welcome to FishBase FishBase contains different things for different people FishBase is an information system with key data on the biology of all fishes. Similar to an encyclopedia, FishBase contains different things for different people. For example, fisheries managers will dive into the largest existing compilation of population dynamics data; teachers and students will find numerous graphs illustrating basic concepts of fish biology; conservationists will use the lists of threatened fishes for any given country; policymakers may be interested in a chronological, annotated list of introductions to their country; research scientists, as well as funding agencies, will find it useful to gain a quick overview of what is known about a certain species; zoologists and physiologists will have the largest existing compilations of fish morphology, metabolism, gill area, brain size, eye pigment, or swimming speed at their fingertips; ecologists will likewise use data on diet composition, trophic levels, food consumption and predators as inputs for their models; the fishing industry will find proximate analyses, as well as processing recommendations for many marine species; anglers will enjoy a listing of all game fishes occurring in a particular country; and scholars interested in local knowledge will find more than 300,000 common names of fishes together with the language/culture in which they are used and comments on their etymology. Unexpected usage of FishBase The above text shows the usage of FishBase that we expected when we first published it on CD- ROM and later on the Internet, in the late 1990s. That assessment has been largely correct with regard to scientific use, which led to over 5000 citations of FishBase as counted by Google Scholar. -
Witch Flounder, Glyptocephalus Cynoglossus, Life History and Habitat Characteristics
NOAA Technical Memorandum NMFS-NE-139 Essential Fish Habitat Source Document: Witch Flounder, Glyptocephalus cynoglossus, Life History and Habitat Characteristics U. S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Marine Fisheries Service Northeast Region Northeast Fisheries Science Center Woods Hole, Massachusetts September 1999 Recent Issues 105. Review of American Lobster (Homarus americanus) Habitat Requirements and Responses to Contaminant Exposures. By Renee Mercaldo-Allen and Catherine A. Kuropat. July 1994. v + 52 p., 29 tables. NTIS Access. No. PB96-115555. 106. Selected Living Resources, Habitat Conditions, and Human Perturbations of the Gulf of Maine: Environmental and Ecological Considerations for Fishery Management. By Richard W. Langton, John B. Pearce, and Jon A. Gibson, eds. August 1994. iv + 70 p., 2 figs., 6 tables. NTIS Access. No. PB95-270906. 107. Invertebrate Neoplasia: Initiation and Promotion Mechanisms -- Proceedings of an International Workshop, 23 June 1992, Washington, D.C. By A. Rosenfield, F.G. Kern, and B.J. Keller, comps. & eds. September 1994. v + 31 p., 8 figs., 3 tables. NTIS Access. No. PB96-164801. 108. Status of Fishery Resources off the Northeastern United States for 1994. By Conservation and Utilization Division, Northeast Fisheries Science Center. January 1995. iv + 140 p., 71 figs., 75 tables. NTIS Access. No. PB95-263414. 109. Proceedings of the Symposium on the Potential for Development of Aquaculture in Massachusetts: 15-17 February 1995, Chatham/Edgartown/Dartmouth, Massachusetts. By Carlos A. Castro and Scott J. Soares, comps. & eds. January 1996. v + 26 p., 1 fig., 2 tables. NTIS Access. No. PB97-103782. 110. Length-Length and Length-Weight Relationships for 13 Shark Species from the Western North Atlantic. -
Seafood Watch® Standard for Fisheries
1 Seafood Watch® Standard for Fisheries Table of Contents Table of Contents ............................................................................................................................... 1 Introduction ...................................................................................................................................... 2 Seafood Watch Guiding Principles ...................................................................................................... 3 Seafood Watch Criteria and Scoring Methodology for Fisheries ........................................................... 5 Criterion 1 – Impacts on the Species Under Assessment ...................................................................... 8 Factor 1.1 Abundance .................................................................................................................... 9 Factor 1.2 Fishing Mortality ......................................................................................................... 19 Criterion 2 – Impacts on Other Capture Species ................................................................................ 22 Factor 2.1 Abundance .................................................................................................................. 26 Factor 2.2 Fishing Mortality ......................................................................................................... 27 Factor 2.3 Modifying Factor: Discards and Bait Use .................................................................... 29 Criterion -
Potential Indicators and Reference Points for Good Environmental Status of Commercially Exploited Marine Fishes and Invertebrates in the German EEZ
Potential Indicators and Reference Points for Good Environmental Status of Commercially Exploited Marine Fishes and Invertebrates in the German EEZ Rainer Froese, Helmholtz Centre for Ocean Research GEOMAR, Düsternbrooker Weg 20, Germany, [email protected] Arlene Sampang, FishBase Information and Research Group FIN, Khush Hall, IRRI, Los Baños, Laguna, Philippines, [email protected] Cite as: Froese, R. and A. Sampang. 2013. Potential Indicators and Reference Points for Good Environmental Status of Commercially Exploited Marine Fishes and Invertebrates in the German EEZ. World Wide Web electronic publication, available from http://oceanrep.geomar.de/22079/ Note: This version of the text [MSFD_8.pdf] replaces an earlier version [MSFD_5.pdf] of September 2013. It fixes a misalignment of proxy recruits and spawners in the data-limited stocks and adds an indication of total biomass. It also adds an analysis of commercial catch data relative to stock abundance, to improve the estimation of mortality for the data-limited stocks. The concepts, overall results and conclusions are not affected by these changes. Abstract Indicators and reference points for assessing the good environmental status of commercially exploited marine fishes and invertebrates are presented, using 20 stocks from the German exclusive economic zone. New estimates of length-weight relationship, von Bertalanffy growth, length at 50% and 90% maturity, age at 50% maturity, and length and age where cohort biomass is maximum are presented for each stock. Twice the stock size below which recruitment may become impaired (SSBpa) is proposed as a proxy for the biomass that can produce the maximum sustainable yield, which is the lower limit reference point for stock size. -
Identification of the Sole Resources of the Gambia
Identification of the Sole Resources of The Gambia Gambia-Senegal Sustainable Fisheries Program (Ba Nafaa) December 2011 This publication is available electronically on the Coastal Resources Center’s website at http://www.crc.uri.edu. For more information contact: Coastal Resources Center, University of Rhode Island, Narragansett Bay Campus, South Ferry Road, Narragansett, Rhode Island 02882, USA. Tel: 401) 874-6224; Fax: 401) 789-4670; Email: [email protected] The BaNafaa project is implemented by the Coastal Resources Center of the University of Rhode Island and the World Wide Fund for Nature-West Africa Marine Ecoregion (WWF-WAMER) in partnership with the Department of Fisheries and the Ministry of Fisheries, Water Resources and National Assembly Matters. Citation: Coastal Resources Center, 2011. Identification of the Sole Resources of The Gambia. Coastal Resources Center, University of Rhode Island, pp.11 Disclaimer: This report was made possible by the generous support of the American people through the United States Agency for International Development (USAID). The contents are the responsibility of the authors and do not necessarily reflect the views of USAID or the United States Government. Cooperative Agreement # 624-A-00-09- 00033-00. Cover Photo: Coastal Resources Center/URI Fisheries Center Photo Credit: Coastal Resources Center/URI Fisheries Center 2 The Sole Resources Proper identification of the species is critical for resource management. There are four major families of flatfish with representative species found in the Gambian nearshore waters: Soleidae, Cynoglossidae, Psettododae and Paralichthyidae. The species below have been confirmed through literature review, and through discussions with local fishermen, processors and the Gambian Department of Fisheries. -
A Simple Method for Estimating MSY from Catch and Resilience
F I S H and F I S H E R I E S , 2013, 14, 504–514 A simple method for estimating MSY from catch and resilience Steven Martell1 & Rainer Froese2 1University of British Columbia, 2202 Main Mall, Vancouver, BC, V6T 1Z4, USA and 2Helmholtz Centre for Ocean Research, GEOMAR, Du¨sternbroker Weg 20, 24105, Kiel, Germany Abstract Correspondence: The Law of the Sea requires that fish stocks are maintained at levels that can pro- Rainer Froese, GEOMAR duce the maximum sustainable yield (MSY). However, for most fish stocks, no esti- Du¨sternbroker Weg mates of MSY are currently available. Here, we present a new method for 20 estimating MSY from catch data, resilience of the respective species, and simple 24105 Kiel assumptions about relative stock sizes at the first and final year of the catch data Germany time series. We compare our results with 146 MSY estimates derived from full Tel.: +49 431 600 4579 stock assessments and find excellent agreement. We present principles for fisheries Fax: +49 431 600 management of data-poor stocks, based only on information about catches and 1699 MSY. E-mail: rfroese@ geomar.de Keywords Carrying capacity, data-poor stocks, harvest control rules, intrinsic rate of population increase, maximum sustainable yield Received 7 Feb 2012 Accepted 16 May 2012 Introduction 505 The need for simple methods 505 Outline of the Catch-MSY method 505 Material and Methods 505 Model and assumptions 505 Data sources 505 Results and Discussion 506 Applying the Catch-MSY method to Greenland halibut 506 Applying the Catch-MSY method to other