Sheepsheadfisheries PROFILE October 2006
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Feeding Activities of Two Euryhaline Small-Sized Fish in a Western Baltic Brackish Fjord
HELGOL.~NDER MEERESUNTERSUCHUNGEN Helgolander Meeresunters. 45,287-300 (1991) Feeding activities of two euryhaline small-sized fish in a western Baltic brackish fjord Birgit Antholz, Wolfgang Meyer-Antholz & C. Dieter Zander Zoologisches Institut und Zoologisches Museum der Universit~t Hamburg; Martin-Luther-King-Platz 3, D-W-2000 Hamburg 13, Federal Repubfic of Germany ABSTRACT: The daily food intake and feeding activities of the common goby Pomatoschistus microps (Kroyer) and the nine-spined stickleback Pungitius pungitius (L.) were investigated in the brackish Schlei fjord. At the investigation site of Olpenitz, salinities varied between 11 and 15 %o, and water temperatures between 5 and 18 ~ during the period of in-situ experiments in 1981 and 1982. Common gobies sometimes attained a density of more than 100 individuals per square metre, nine-spined sticklebacks as much as 18 individuals per square meter. Their food changed depend- ing on the supply of plankton or benthos. Regarding numbers, their food consisted mainly of harpacticoids, in springtimes of calanoids; with regard to weight, amphipods, polychaetes or chironomid larvae often prevailed. The total food ingestion, measured by means of its relation to fish weights (fullness index), was highest in spring and summer: 2.3 % in P. microps and 2.6 % in P. pungitius. Low fullness indices of 0.8 % in P. microps and 0.3 % in P. pungitius were found during times of low water temperatures. 24-h field investigations revealed that the adult P. microps presented clear diurnal rhythms with highest fullness indices after dawn and a further maximum at dusk. Only young gobies ingested some benthos at night. -
Pulse Fishing and Its Effects on the Marine Ecosystem and Fisheries
Pulse fishing and its effects on the marine ecosystem and fisheries An update of the scientific knowledge 1, 1 1 2 Authors: Adriaan Rijnsdorp Dick de Haan , Sarah Smith , Wouter Jan Strietman Wageningen University & Research Report C117/16 1= Wageningen Marine Research, 2= Wageningen Economic Research Pulse fishing and its effects on the marine ecosystem and fisheries An update of the scientific knowledge Author(s): Adriaan Rijnsdorp1, Dick de Haan1, Sarah Smith1, Wouter Jan Strietman2 1 = Wageningen Marine Research, 2 = Wageningen Economic Research Publication date: 6 December 2016 This research project was carried out by Wageningen Marine Research at the request of and with funding from the Ministry of Economic Affairs for the purposes of Policy Support Research Theme ‘Sustainable Fisheries' (project no. BO-20-010-078). Wageningen Marine Research IJmuiden, 6 December 2016 Wageningen Marine Research report C117/16 Wageningen, Wageningen Marine Research (University & Research centre), Wageningen Marine Research report C117/16, 30 pages. Date 6 December 2016 Client: Ministry of Economic Affairs Attn. C.J.M. Verbogt Postbus 20401 2500 EK DEN HAAG BAS code BO-20-010-078 Wageningen Marine Research is ISO 9001:2008 certified. Dit rapport is gratis te downloaden van http://dx.doi.org/10.18174/400193. Wageningen Marine Research verstrekt geen gedrukte exemplaren van rapporten. © 2016 Wageningen Marine Research Wageningen UR Wageningen Marine Research The Management of Wageningen Marine Research is not responsible for resulting institute of Stichting Wageningen damage, as well as for damage resulting from the application of results or Research is registered in the Dutch research obtained by Wageningen Marine Research, its clients or any claims traderecord nr. -
Marine Fish Conservation Global Evidence for the Effects of Selected Interventions
Marine Fish Conservation Global evidence for the effects of selected interventions Natasha Taylor, Leo J. Clarke, Khatija Alliji, Chris Barrett, Rosslyn McIntyre, Rebecca0 K. Smith & William J. Sutherland CONSERVATION EVIDENCE SERIES SYNOPSES Marine Fish Conservation Global evidence for the effects of selected interventions Natasha Taylor, Leo J. Clarke, Khatija Alliji, Chris Barrett, Rosslyn McIntyre, Rebecca K. Smith and William J. Sutherland Conservation Evidence Series Synopses 1 Copyright © 2021 William J. Sutherland This work is licensed under a Creative Commons Attribution 4.0 International license (CC BY 4.0). This license allows you to share, copy, distribute and transmit the work; to adapt the work and to make commercial use of the work providing attribution is made to the authors (but not in any way that suggests that they endorse you or your use of the work). Attribution should include the following information: Taylor, N., Clarke, L.J., Alliji, K., Barrett, C., McIntyre, R., Smith, R.K., and Sutherland, W.J. (2021) Marine Fish Conservation: Global Evidence for the Effects of Selected Interventions. Synopses of Conservation Evidence Series. University of Cambridge, Cambridge, UK. Further details about CC BY licenses are available at https://creativecommons.org/licenses/by/4.0/ Cover image: Circling fish in the waters of the Halmahera Sea (Pacific Ocean) off the Raja Ampat Islands, Indonesia, by Leslie Burkhalter. Digital material and resources associated with this synopsis are available at https://www.conservationevidence.com/ -
Hemiptera: Heteroptera)From Louisiana, U.S.A
Taylor & Gil: Aradidae from Louisiana 199 STATE RECORDS, CONFIRMATIONS, AND HABITATS OF ARADIDAE (HEMIPTERA: HETEROPTERA)FROM LOUISIANA, U.S.A. STEVEN J. TAYLOR1 AND STEPHANIE A. GIL2 1Illinois Natural History Survey, 1816 South Oak Street, Champaign, Illinois 61820 E-mail: [email protected] 2Department of Entomology, Louisiana State University, Baton Rouge, Louisiana 70803-1710 E-mail: [email protected] ABSTRACT The Aradidae of Louisiana are poorly known, with only 5 species reported from the state. We examined 251 adult flat bugs from Louisiana in the Louisiana State Arthropod Museum, confirming the presence of 4 species (Aradus falleni Stål, Acaricoris ignotus Harris and Drake, Notapictinus aurivilli (Bergroth), and Mezira sayi Kormilev) and adding 14 more in 4 subfamilies (Aneurinae: Aneurus fiskei Heidemann, Aneurus pygmaeus Kormilev; Aradi- nae: Aradus acutus Say, Aradus aequalis Say, Aradus kormilevi Heiss, Aradus ornatus Say, Aradus robustus Uhler; Carventinae: Neoproxius gypsatus (Bergroth); Mezirinae: Neurocte- nus pseudonymus Bergroth, Neuroctenus simplex (Uhler), Mezira emarginata (Say), Mezira froeschneri Davidová-Vilímová et al., Mezira granulata (Say), and Mezira lobata (Say)) to the state’s fauna. Habitats recorded for these species are discussed. Key Words: flat bug, distribution, habitat, Aneurus, Neuroctenus, Neoproxius RESUMEN Los Aradidae de Louisiana han sido poco estudiados y solo cinco species son conocidas para en el estado. Al examinar 251 chinches adultas de Louisiana pertecientes al Louisiana State Arthropod Museum, -
Effects of Fishing on Long-Lived Marine Organisms
Effects of Fishing on 13 Long-Lived Marine Organisms Selina S. Heppell, Scott A. Heppell, Andrew J. Read, and Larry B. Crowder North America once had a rich array of megafauna sidered in jeopardy by Norse (1993) are overexploited, that included 31 genera of large and long-lived mam- and a substantial number of currently threatened or mals such as mastodons, horses, and saber-toothed endangered marine animals are subject to direct ex- tigers. But around 12,000 years ago, these organisms ploitation or bycatch (Crowder and Murawski 1998). disappeared. What led to the demise of this fascinat- One characteristic of many extinct or endangered ing fauna? Although it is still the subject of some de- marine animals is that they are relatively large, long- bate, a prevailing hypothesis is that these organisms lived organisms. Hunters in the sea often focused first were rendered extinct as technology invaded the con- on large organisms and hunted them intensively. tinent and moved from west to east (Frison 1998; Mar- Steller’s sea cow (Hydrodamalis gigas), a massive siren- tin 1973), either carried directly by humans as they ian first discovered by Europeans in 1741, reached spread through the continent or as the technology lengths exceeding 8 m and weights of over 5 tons. passed through existing populations. Even with mod- Abundant, slow moving, and unafraid of humans, est technologies, hunters were able to hunt or modify Steller’s sea cows were hunted intensively for their the habitats of these large organisms to force their ex- meat and driven to extinction by 1768. -
Fishes of Terengganu East Coast of Malay Peninsula, Malaysia Ii Iii
i Fishes of Terengganu East coast of Malay Peninsula, Malaysia ii iii Edited by Mizuki Matsunuma, Hiroyuki Motomura, Keiichi Matsuura, Noor Azhar M. Shazili and Mohd Azmi Ambak Photographed by Masatoshi Meguro and Mizuki Matsunuma iv Copy Right © 2011 by the National Museum of Nature and Science, Universiti Malaysia Terengganu and Kagoshima University Museum All rights reserved. No part of this publication may be reproduced or transmitted in any form or by any means without prior written permission from the publisher. Copyrights of the specimen photographs are held by the Kagoshima Uni- versity Museum. For bibliographic purposes this book should be cited as follows: Matsunuma, M., H. Motomura, K. Matsuura, N. A. M. Shazili and M. A. Ambak (eds.). 2011 (Nov.). Fishes of Terengganu – east coast of Malay Peninsula, Malaysia. National Museum of Nature and Science, Universiti Malaysia Terengganu and Kagoshima University Museum, ix + 251 pages. ISBN 978-4-87803-036-9 Corresponding editor: Hiroyuki Motomura (e-mail: [email protected]) v Preface Tropical seas in Southeast Asian countries are well known for their rich fish diversity found in various environments such as beautiful coral reefs, mud flats, sandy beaches, mangroves, and estuaries around river mouths. The South China Sea is a major water body containing a large and diverse fish fauna. However, many areas of the South China Sea, particularly in Malaysia and Vietnam, have been poorly studied in terms of fish taxonomy and diversity. Local fish scientists and students have frequently faced difficulty when try- ing to identify fishes in their home countries. During the International Training Program of the Japan Society for Promotion of Science (ITP of JSPS), two graduate students of Kagoshima University, Mr. -
Marine Science Virtual Lesson Biological Oceanography Photo Credit: Getty Images
Marine Science Virtual Lesson Biological Oceanography Photo credit: Getty Images • The study of how plants and animals interact with What is each other and their marine environment. • How organisms affect and are affected by chemical, Biological physical, and geological oceanography Oceanography? • Studies life in the ocean from tiny algae to giant blue whales Marine Environment Photo credit: Getty Images Biological Pump Some CO2 is • Carbon sink is part of the released through biological pump respiration • The pump includes upwelling that brings nutrient back up the water column • Releasing some CO2 through respiration Upwelling of nutrients Photosynthesis • Sunlight and CO2 is used to make sugar and oxygen • Can be used as fuel for an organism's movement and biological processes • Such as: circulatory system, digestive system, and respiration Where Can You Find Life in the Ocean • Plants and algae are found in the euphotic zone of the ocean • Where light reaches • Animals are found at all depths of the ocean • Most live-in the euphotic zone where there is more prey • 90% of species live and rely in euphotic zones • the littoral (close to shore) and sublittoral (coastal areas) zones Photo credit: libretexts.org Photo credit: Christian Sardet/CNRS/Tara Expéditions Plankton • Drifting animals • Follow the ocean currents (don’t swim) • Holoplankton • Spend entire lives in water column • Meroplankton • Temporary residents of plankton community • Larvae of benthic organisms Plankton 2.0 • Phytoplankton • Autotrophic (photosynthetic) Photo -
1 New England Fishery Management Council Amendment 13 to The
New England Fishery Management Council Amendment 13 to the Northeast Multispecies FMP Public Hearing Summary Portland, ME September 25, 2003 A public hearing was held to receive comments on the draft Amendment 13 to the Northeast Multispecies Fishery Management Plan and the accompanying Draft Supplemental Environmental Impact Statement (DSEIS). The meeting was chaired by Groundfish Oversight Committee Chair Mr. Frank Blount, assisted by Council staff Tom Nies. Council members Mr. George LaPointe, Mr. Lew Flagg, Mr. John Williamson, Mr. Bud Fernandes, Mr. Erik Anderson, and Mr. Jim Odlin were also present. There were about two hundred people in attendance, sixty who signed the attendance sheet. After introductions, Council staff provided an overview of the amendment documents (including the public hearing document and the measures matrix) and described the comment process and future actions. The public then asked questions to clarify the issues before providing comments. The questions asked, with staff responses, were: Ms. Maggie Raymond, Associated Fishermen of Maine (AFM), South Berwick ME: Here with me today are Mr. David Frulla, legal counsel to AFM and several others from AFM. During the comment period I will let you hear from members of AFM that you don't usually hear from. I have a number of questions about the document and the analysis. The document includes as the No Action alternative the Amendment 8 biomass targets. However that is not listed in the public hearing document. Is that indeed an optio n. Mr. Nies: That is the No Action alternative. Ms. Raymond If the Council chose those biomass targets, would there be different fishing mortality targets that result? Mr. -
FEBRUARY 1, 2018 10 11 VOTING MEMBERS 12 Kevin Anson (Designee for Scott Bannon)
1 GULF OF MEXICO FISHERY MANAGEMENT COUNCIL 2 3 268TH MEETING 4 5 FULL COUNCIL SESSION 6 7 Hyatt Centric New Orleans, Louisiana 8 9 JANUARY 29-FEBRUARY 1, 2018 10 11 VOTING MEMBERS 12 Kevin Anson (designee for Scott Bannon)...................Alabama 13 Patrick Banks...........................................Louisiana 14 Leann Bosarge.........................................Mississippi 15 Doug Boyd...................................................Texas 16 Roy Crabtree.................................................NMFS 17 Dale Diaz.............................................Mississippi 18 Phil Dyskow...............................................Florida 19 Tom Frazer................................................Florida 20 Johnny Greene.............................................Alabama 21 Martha Guyas (designee for Jessica McCawley)..............Florida 22 Campo Matens............................................Louisiana 23 Paul Mickle (designee for Joe Spraggins)..............Mississippi 24 Robin Riechers..............................................Texas 25 John Sanchez..............................................Florida 26 Bob Shipp.................................................Alabama 27 Greg Stunz..................................................Texas 28 Ed Swindell.............................................Louisiana 29 30 NON-VOTING MEMBERS 31 Glenn Constant..............................................USFWS 32 Dave Donaldson..............................................GSMFC 33 LT Mark Zanowicz.............................................USCG -
Unidirectional Na and Ca 2+ Xuxes in Two Euryhaline Teleost Wshes
J Comp Physiol B (2007) 177:519–528 DOI 10.1007/s00360-007-0150-y ORIGINAL PAPER Unidirectional Na+ and Ca2+ Xuxes in two euryhaline teleost Wshes, Fundulus heteroclitus and Oncorhynchus mykiss, acutely submitted to a progressive salinity increase Viviane Prodocimo · Fernando Galvez · Carolina A. Freire · Chris M. Wood Received: 15 September 2006 / Revised: 30 January 2007 / Accepted: 30 January 2007 / Published online: 22 February 2007 © Springer-Verlag 2007 Abstract Na+ and Ca2+ regulation were compared in rainbow trout experienced a dramatic increase in Na+ two euryhaline species, killiWsh (normally estuarine- inXux (50-fold relative to FW values), but not Na+ resident) and rainbow trout (normally freshwater-resi- eZux between 40 and 60% SW, resulting in a large net dent) during an incremental salinity increase. Whole- loading of Na+ at higher salinities (60–100% SW), and body unidirectional Xuxes of Na+ and Ca2+, whole body increases in plasma Na+ and whole body Na+ at 100% Na+ and Ca2+, and plasma concentrations (trout only), SW. KilliWsh were in negative Ca2+ balance at all salini- were measured over 1-h periods throughout a total 6-h ties, whereas trout were in positive Ca2+ balance protocol of increasing salinity meant to simulate a nat- throughout. Ca2+ inXux rate increased two- to threefold ural tidal Xow. KilliWsh exhibited signiWcant increases in killiWsh at 80 and 100% SW, but there were no con- in both Na+ inXux and eZux rates, with eZux slightly comitant changes in Ca2+ eZux. Ca2+ Xux rates were lagging behind eZux up to 60% SW, but net Na+ bal- aVected to a larger degree in trout, with twofold ance was restored by the time killiWsh reached 100% increases in Ca2+ inXux at 40% SW and sevenfold SW. -
Of the FLORIDA STATE MUSEUM Biological Sciences
2% - p.*' + 0.:%: 4.' 1%* B -944 3 =5. M.: - . * 18 . .,:i -/- JL J-1.4:7 - of the FLORIDA STATE MUSEUM Biological Sciences Volume 24 1979 Number 1 THE ORIGIN AND SEASONALITY OF THE FISH FAUNA ON A NEW JETTY IN THE NORTHEASTERN GULF OF MEXICO ROBERT W. HASTINGS *S 0 4 - ' In/ g. .f, i»-ly -.Id UNIVERSITY OF FLORIDA - GAINESVILLE Numbers of the Bulletin of the Florida State Museum, Biological Sciences, are pub- lished at irregular intervals. Volumes contain about 300 pages and are not necessarily completed in any one calendar year. John William Hardy, Editor Rhoda J. Rybak, Managing Editor Consultants for this issue: Robert L. Shipp Donald P. deSylva Communications concerning purchase or exchange of the publications and all manuscripts should be addressed to: Managing Editor, Bulletin; Florida State Museum; University of Florida; Gainesville, Florida 32611. Copyright © 1979 by the Florida State Museum of the University of Florida. This public document was promulgated at an annual cost of $3,589.40, or $3.589 per copy. It makes available to libraries, scholars, and all interested persons the results of researches in the natural sciences, emphasizing the circum-Caribbean region. Publication date: November 12, 1979 Price, $3.60 THE ORIGIN AND SEASONALITY OF THE FISH FAUNA ON A NEW JETTY IN THE NORTHEASTERN GULF OF MEXICO ROBERT W. HASTINGS1 SYNOPSIS: The establishment of the fish fauna on a new jetty at East Pass at the mouth of Choctawhatchee Bay, Okaloosa County, Florida, was studied from June, 1968, to January, 1971. Important components of the jetty fauna during its initial stages of development were: (a) original residents that exhibit some attraction to reef habitats, including some sand-beach inhabitants, several pelagic species, and a few ubiquitous estuarine species; and (b) reef fishes originating from permanent populations on offshore reefs. -
Careers in Marine Science
Introduction Marine science sounds like an mud or fish slime. Subsequent Marine science careers can exciting career, but what exactly lab and office work may be be very rewarding. Just being does a marine scientist do and routine, but is part of the job outside and enjoying the sunrise how do you get started? in most scientific fields. Finally, over the ocean, or a beautiful City and state aquariums and scientists need to communicate day in the salt marsh, adds to theme parks usually display their findings to other scientists the challenge and satisfaction of large, glamorous marine animals, as well as the general public and understanding and helping the and television portrays marine lawmakers. Marine biologists environment. And if research biologists as divers searching for regularly publish scientific papers, does not interest you, there are the mysteries of the deep, or in and present their findings to many related jobs to consider. a cage surrounded by sharks. others. Successful biologists Education, environmental law, Actually, very few marine scientists need to develop both writing and interpretation, art, journalism, do these kinds of exciting jobs, or public speaking skills. filmmaking, and many other non- work with glamorous animals. Hundreds of different jobs, scientific fields offer a chance to South Carolina, for example, encompassing almost all other work with marine related topics has many more biologists studying sciences, exist in the general field and help the environment. shrimp than dolphins or sharks. of Marine Science. Jobs in a All of this work in the marine The reasons are simple: animals marine-related field include: science field brings us one step with a commercial fisheries value, Oceanographer closer to understanding problems or sought by sport fishermen, have Marine Mammal biologist of pollution, overfishing, habitat monetary value.