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(Symphurus Plagiusa) and the Offshore Tonguefish (S
Louisiana State University LSU Digital Commons LSU Doctoral Dissertations Graduate School 2003 The ecology of two estuarine-dependent tonguefishes, the blackcheek tonguefish (Symphurus plagiusa) and the offshore tonguefish (S. civitatium), in coastal Louisiana Theodore Scott wS itzer Louisiana State University and Agricultural and Mechanical College, [email protected] Follow this and additional works at: https://digitalcommons.lsu.edu/gradschool_dissertations Part of the Oceanography and Atmospheric Sciences and Meteorology Commons Recommended Citation Switzer, Theodore Scott, "The ce ology of two estuarine-dependent tonguefishes, the blackcheek tonguefish (Symphurus plagiusa) and the offshore tonguefish (S. civitatium), in coastal Louisiana" (2003). LSU Doctoral Dissertations. 1305. https://digitalcommons.lsu.edu/gradschool_dissertations/1305 This Dissertation is brought to you for free and open access by the Graduate School at LSU Digital Commons. It has been accepted for inclusion in LSU Doctoral Dissertations by an authorized graduate school editor of LSU Digital Commons. For more information, please [email protected]. THE ECOLOGY OF TWO ESTUARINE-DEPENDENT TONGUEFISHES, THE BLACKCHEEK TONGUEFISH (SYMPHURUS PLAGIUSA) AND THE OFFSHORE TONGUEFISH (S. CIVITATIUM), IN COASTAL LOUISIANA A Dissertation Submitted to the Graduate Faculty of the Louisiana State University and Agricultural and Mechanical College In partial fulfillment of the Requirements for the degree of Doctor of Philosophy in The Department of Oceanography and Coastal Sciences by Theodore S. Switzer B.S., Clarion University of Pennsylvania, 1995 M.Ap.Stat., Louisiana State University, 2002 August, 2003 ACKNOWLEDGEMENTS First of all I would like to thank my major professor, Don Baltz, for his guidance and support throughout the past several years, without which this dissertation would not have been possible. -
Polychlorinated Biphenyls and Organochlorine Pesticide Concentrations in Whole Body Mummichog and Banded Killifish from the Anacostia River Watershed: 2018-2019
U.S. Fish & Wildlife Service Polychlorinated Biphenyls and Organochlorine Pesticide Concentrations in Whole Body Mummichog and Banded Killifish from the Anacostia River Watershed: 2018-2019 CBFO-C-20-01 Left: Mummichog, female (L), male (R); Right: Banded killifish, left two are males, right two are females. Photos: Fred Pinkney, USFWS U.S. Fish and Wildlife Service Chesapeake Bay Field Office June 2020 Polychlorinated Biphenyls and Organochlorine Pesticide Concentrations in Whole Body Mummichog and Banded Killifish from the Anacostia River Watershed: 2018-2019 CBFO-C20-01 Prepared by Alfred E. Pinkney U.S. Fish and Wildlife Service Chesapeake Bay Field Office Annapolis, MD and Elgin S. Perry Statistical Consultant Colonial Beach, VA Prepared for Dev Murali Government of the District of Columbia Department of Energy and Environment Washington, DC June 2020 ABSTRACT In 2018 and 2019, the U.S. Fish and Wildlife Service Chesapeake Bay Field Office (CBFO) monitored polychlorinated biphenyl (PCB) and organochlorine (OC) pesticide concentrations in whole body samples of forage fish. Fish were collected along the mainstem Anacostia River, Kingman Lake, five major tributaries, and (as a reference) a section of the Potomac River. Mummichog (Fundulus heteroclitus; referred to as MC in this report) and banded killifish (F. diaphanus BK) were chosen because of their high site fidelity and widespread presence in the watersheds. The objectives are to: 1) establish a pre-remedial baseline of these contaminants in fish from the Anacostia mainstem and major tributaries, Kingman Lake, and the Potomac River; 2) compare total PCB, total chlordane, and total DDT among sampling locations; and 3) interpret patterns in PCB homologs. -
Copy of Summer Flounder/Fluke Fast Facts
YOFUISTH EERDUIECSATION FLUKE (SUMMER FLOUNDER) Poor Paralichthys dentatus Conservation Status "Poor" in NYS Range Map (fishbase.org) FACT ONE FACT TWO Fluke is a species of flatfish also known as The way to distinguish fluke and winter summer flounder. Some other names include flounder is by knowing if they are right or northern fluke or hirame. Fluke is a type of left - eyed. Fluke face left when their mouth flounder but this name helps distinguish it from points up and winter flounder face right the very similar Winter Flounder. when their mouth points up. FACT THREE FACT FOUR Like other flounder, fluke hide at the bottom Fluke is a valuable food fish and has remained a to catch prey. They are a lighter, more popular commercial and recreational catch for dappled brown than winter flounder. They hundreds of years. CCE Marine Program conducts also have “eye” spots patterned along their important applied research on fluke including body. They can change color to match dark discard mortality (how many fish survive after or light sediment they are lying in, too! being caught and thrown back). For more information about F.I.S.H. Initiative: https://www.localfish.org/ FISHERIES Overview Status Fluke are found in inshore and offshore Summer flounder are not overfished and are not waters from Nova Scotia, Canada, to the east subject to overfishing, according to the Atlantic coast of Florida along the East Coast of the States Marine Fisheries Commission (ASMFC). United States. It is a left-eyed flatfish that However, the population of Fluke has decreased over lives 12 to 14 years. -
(Paralichthys Lethostigma) in the Galveston Bay Estuary, TX
DISTRIBUTION, CONDITION, AND GROWTH OF NEWLY SETTLED SOUTHERN FLOUNDER (Paralichthys lethostigma) IN THE GALVESTON BAY ESTUARY, TX A Thesis by LINDSAY ANN GLASS Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE May 2006 Major Subject: Wildlife and Fisheries Sciences DISTRIBUTION, CONDITION, AND GROWTH OF NEWLY SETTLED SOUTHERN FLOUNDER (Paralichthys lethostigma) IN THE GALVESTON BAY ESTUARY, TX A Thesis by LINDSAY ANN GLASS Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE Approved by: Chair of Committee, Jay R. Rooker Committee Members, William H. Neill Antonietta Quigg Head of Department, Delbert M.Gatlin III May 2006 Major Subject: Wildlife and Fisheries Sciences iii ABSTRACT Distribution, Condition, and Growth of Newly Settled Southern Flounder (Paralichthys lethostigma) in the Galveston Bay Estuary, TX. (May 2006) Lindsay Ann Glass, B.S., Texas A&M University-Galveston Chair of Advisory Committee: Dr. Jay R. Rooker Several flatfish species including southern flounder (Paralichthys lethostigma) recruit to estuaries during early life. Therefore, the evaluation of estuarine sites and habitats that serve as nurseries is critical to conservation and management efforts. I used biochemical condition and growth measurements in conjunction with catch-density data to evaluate settlement sites used by southern flounder in the Galveston Bay Estuary (GBE). In 2005, beam-trawl collections were made in three major sections of the GBE (East Bay, West Bay, Galveston Bay), and three sites were sampled in each bay. -
Extinction Risk and Overfishing: Reconciling Conservation And
Extinction Risk and Overfishing: Reconciling Conservation and Fisheries SUBJECT AREAS: BIODIVERSITY Perspectives on the Status of Marine SUSTAINABILITY ECOLOGY Fishes BIOLOGICAL MODELS Trevor D. Davies1 & Julia K. Baum2 Received 1 2 30 April 2012 Department of Biology, Dalhousie University, Halifax, NS, Canada, Department of Biology, University of Victoria, Victoria, BC, Canada. Accepted 10 July 2012 Anthropogenic disturbances are ubiquitous in the ocean, but their impacts on marine species are hotly Published debated. We evaluated marine fish statuses using conservation (Red List threatened or not) and fisheries 7 August 2012 (above or below reference points) metrics, compared their alignment, and diagnosed why discrepancies arise. Whereas only 13.5% of Red Listed marine fishes (n52952) are threatened, 40% and 21% of populations with stock assessments (n5166) currently are below their more conservative and riskier reference points, respectively. Conservation and fisheries metrics aligned well (70.5% to 80.7%), despite Correspondence and their mathematical disconnect. Red Listings were not biased towards exaggerating threat status, and requests for materials egregious errors, where populations were categorized at opposite extremes of fisheries and conservation should be addressed to metrics, were rare. Our analyses suggest conservation and fisheries scientists will agree on the statuses of T.D.D. (tdavies@ exploited marine fishes in most cases, leaving only the question of appropriate management responses for mathstat.dal.ca) populations of mutual concern still unresolved. uman impacts on natural ecosystems are diverse and accelerating1,2. On land, where the primary threat to wildlife is habitat loss, recent comprehensive assessments of birds, mammals, and amphibians have revealed 13%, 21%, and 30% of these species to be threatened with a heightened risk of extinction, H 3 respectively . -
Yellowtail Flounder (Limanda Ferruginea) Ageing Manual
NOT TO BE CITED WITHOUT PRIOR REFERENCE TO THE AUTHOR(S) Northwest Atlantic Fisheries Organization Serial No. N4947 NAFO SCR Doc. 04/5 SCIENTIFIC COUNCIL MEETING – JUNE 2004 Yellowtail Flounder (Limanda ferruginea) Ageing Manual Karen Dwyer Northwest Atlantic Fisheries Centre Abstract This is a technical manual describing the methods and interpretations used for estimating age in yellowtail flounder (Limanda ferruginea). The paper gives a general overview of ageing, and then discusses how yellowtail flounder are presently being aged at the Northwest Atlantic Fisheries Centre (NAFC) in St. John’s, Newfoundland. It also provides information on the types of validation studies that are used to ensure accuracy of ageing, and attempts to troubleshoot any difficult aspects of ageing. The thin-sectioning method used to age this species is discussed, and includes detailed information on how it is carried out. The structure of the whole otolith were discussed, along with the limitations for ageing yellowtail flounder using this structure. This manual contains a glossary and high quality photos and diagrams for use when ageing yellowtail flounder. Introduction Age of marine fish can be determined by counting periodic markings on a variety of ‘hardparts’. Scales, vertebrae, spines and otoliths have been used to determine age in fish. In the case of flatfish otoliths are unique in that they have both symmetrical and asymmetrical sagittal otolith (Hunt, 1992). Age of fish is essential in fisheries management. Hence, accurate age determinations are a vital part of the scientific process of stock assessment and are critical for estimating mortality and growth rates (Chilton and Beamish, 1982; Penttila and Dery, 1988). -
Viral Haemorrhagic Septicaemia Virus in Marine Fish and Its Implications
Journal of Fish Diseases 2005, 28, 509–529 Review Viral haemorrhagic septicaemia virus in marine fish and its implications for fish farming – a review H F Skall1, N J Olesen1 and S Mellergaard2,* 1 Department of Poultry, Fish and Fur Animals, Danish Institute for Food and Veterinary Research, A˚rhus, Denmark 2 Department for Marine Ecology and Aquaculture, Fish Disease Laboratory, Danish Institute for Fisheries Research, Frederiksberg, Denmark marine fish to farmed fish are discussed, as are Abstract measures to prevent introduction of VHSV from the Viral haemorrhagic septicaemia virus (VHSV) has, marine environment to aquaculture. in recent decades, been isolated from an increasing Keywords: aquaculture, legislation, marine VHSV number of free-living marine fish species. So far, it isolates, review, viral haemorrhagic septicaemia has been isolated from at least 48 fish species from the virus (VHSV), wild marine fish. northern hemisphere, including North America, Asia and Europe, and fifteen different species inclu- ding herring, sprat, cod, Norway pout and flatfish Introduction from northern European waters. The high number of Viral haemorrhagic septicaemia (VHS) is one of the VHSV isolations from the Baltic Sea, Kattegat, most important viral diseases of salmonid fish in Skagerrak, the North Sea and waters around Scot- European aquaculture (Olesen 1998), causing esti- land indicate that the virus is endemic in these wa- mated losses of £40 million pounds per year in ters. The VHSV isolates originating from wild 1991 (Hill 1992). The economic consequences of marine fish show no to low pathogenicity to rainbow VHS outbreaks on two Danish fish farms in 2000 trout and Atlantic salmon, although several are producing approximately 165 tonnes rainbow trout, pathogenic for turbot. -
Citharichthys Uhleri Jordan in Jordan and Goss, 1889 Cyclopsetta Fimbriata
click for previous page Pleuronectiformes: Paralichthyidae 1917 Citharichthys uhleri Jordan in Jordan and Goss, 1889 En - Voodoo whiff. Maximum size to 11 cm standard length. Poorly known species. Similar to other Citharichthys. Visually orient- ing ambush predator feeding on various invertebrates and small fishes. Apparently rare. Taxonomic status needs further investigation. Sourthern Gulf of Mexico to Costa Rica; Haiti. from Gutherz, 1967 Cyclopsetta fimbriata (Goode and Bean, 1885) En - Spotfin flounder; Fr - Perpeire à queue tachetée; Sp - Lenguado rabo manchado. Maximum size 33 cm, commonly to 25 cm. Soft bottom habitats between 20 to 230 m. Taken as bycatch in in- dustrial trawl fisheries for shrimps. Marketed fresh. Continental shelf off Atlantic and Gulf coasts of the USA from North Carolina to Yucatán, Mexico; Greater Antilles; Caribbean Sea from Mexico to Trinidad; Atlantic coast of South America to Ilha dos Búzios, São Paulo, Brazil. Etropus crossotus Jordan and Gilbert, 1882 UCO En - Fringed flounder; Fr - Rombou petite gueule; Sp - Lenguado boca chica. Maximum size 20 cm, commonly to 15 cm total length. On very shallow, soft bottoms, from the coastline to depths of 30 m, occasionally to 65 m. Caught with beach seines. Artisanal fishery; of minor commercial impor- tance because of its small average size. Virginia to Gulf of Mexico, Caribbean Islands and Atlantic and Pacific coasts of Central America; Tobago; to Tramandí, Rio Grande do Sul, Brazil. Etropus intermedius Norman, 1933 is a junior synonym of E. crossotus. 1918 Bony Fishes Etropus cyclosquamus Leslie and Stewart, 1986 En - Shelf flounder. Maximum size to about 10 cm standard length, commonly 5 to 8 cm standard length. -
Chapter 5: Commercial and Recreational Fisheries
Ocean Special Area Management Plan Chapter 5: Commercial and Recreational Fisheries Table of Contents 500 Introduction.............................................................................................................................9 510 Marine Fisheries Resources in the Ocean SAMP Area.....................................................12 510.1 Species Included in this Chapter ..........................................................................12 510.1.1 Species important to commercial and recreational fisheries.....................12 510.1.2 Forage fish ................................................................................................15 510.1.3 Threatened and endangered species and species of concern ....................15 510.2 Life History, Habitat, and Fishery of Commercially and Recreationally Important Species............................................................................................................17 510.2.1 American lobster.......................................................................................17 510.2.2 Atlantic bonito ..........................................................................................19 510.2.3 Atlantic cod...............................................................................................20 510.2.4 Atlantic herring .........................................................................................21 510.2.5 Atlantic mackerel......................................................................................23 510.2.6 Atlantic -
Occurrence of Hypomelanization in Cultured Yellowtail Flounder Limanda Ferruginea
Aquaculture Research, 2002, 33, 1191±1193 SHORT COMMUNICATION Occurrence of hypomelanization in cultured yellowtail flounder Limanda ferruginea C F Purchase*, D L Boyce & J A Brown Ocean Sciences Centre, Memorial University of Newfoundland, St John's, Newfoundland, Canada Correspondence: J A Brown, Ocean Sciences Centre, Memorial University of Newfoundland, St John's, Newfoundland, A1C 5S7, Canada. E-mail: [email protected] *Present address: Department of Zoology, University of Toronto at Mississauga, 3359 Mississauga Road, Mississauga, Ontario, L5L 1C6, Canada. Flatfish often exhibit abnormal pigmentation under investigated for its potential as a cold-water cultured conditions, e.g. Japanese flounder Para- aquaculture species. Broodstock development along lichthys olivaceus (Temminck & Schlegel) (Seikai, with culture from the egg to the juvenile stage Watanabe & Shimozaki 1987). This is usually ex- have been successful. Current interest on this pressed as a lack of pigment, pseudo-albinism (hypo- species is being devoted to ongrowing of juveniles melanization), on the ocular side or, less often, as (e.g. Purchase, Boyce & Brown 2000). Here, we pigmentation on the blind side (hypermelanization), report the occurrence of hypomelanization in which is normally unpigmented (reviewed by juveniles of this species, which were produced at Venizelos & Benetti 1999). Abnormal pigmentation Memorial University of Newfoundland's Ocean Sci- may be a result of inadequate nutrition, light or ences Centre, near St John's, Newfoundland, Canada. stress during the larval stage (Matsumoto & Seikai Over a period of several years, yellowtail flounder 1992). Whether abnormal pigmentation is the result eggs were obtained from captive broodstock held at of more general metabolic problems is unclear. -
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The Canadian Field-Naturalist Banded Killifish (Fundulus diaphanus) and Mummichog (Fundulus heteroclitus) distributions in insular Newfoundland waters: implications for a Species at Risk Philip S. Sargent1, *, Kate L. Dalley1, and Derek R. Osborne1 1Department of Fisheries and Oceans Canada, Northwest Atlantic Fisheries Centre, 80 East White Hills Road, St. John’s, Newfoundland and Labrador A1C 5X1 Canada *Corresponding author: [email protected] Sargent, P.S., K.L. Dalley, and D.R. Osborne. 2020. Banded Killifish (Fundus diaphanus) and Mummichog (Fundus hetero clitus) distributions in insular Newfoundland waters: implications for a Species at Risk. Canadian Field-Naturalist 134(4): 307–315. https://doi.org/10.22621/cfn.v134i4.2373 Abstract Newfoundland’s Banded Killifish (Fundulus diaphanus) population is listed as a species of Special Concern under Canada’s Species at Risk Act and Vulnerable under Newfoundland and Labrador’s Endangered Species Act. Mummichog (Fundulus heteroclitus) is a similar looking fish species and is currently under review by Newfoundland and Labrador’s Species Status Advisory Committee. Both species have limited known distributions in Newfoundland waters that overlap. They may occur sympatrically in estuaries and occasionally hybridize; thus, field identifications can be challenging. We found that dorsal fin position and caudal fin depth were the most useful morphological characters for distinguishing Banded Killifish and Mummichog in the field. We used local ecological knowledge, literature review, museum records, and field surveys to update the known distribution ranges and found both species in more locations than previously documented in Newfoundland. Thus, we extend their known ranges. Our results will be critical in future status assessments of these species in Newfoundland. -
Visual Navigation and Terrestrial Locomotion of the Intertidal Killifish Fundulus Heteroclitus
Look before you leap: Visual navigation and terrestrial locomotion of the intertidal killifish Fundulus heteroclitus Honors Thesis Presented to the College of Arts and Scienes Cornell University in Partial Fulfillment of the Requirements for the Biological Sciences Honors Program by Noah Bressman May 2016 Supervisor Dr. William Bemis RESEARCH ARTICLE Look Before You Leap: Visual Navigation and Terrestrial Locomotion of the Intertidal Killifish Fundulus heteroclitus NOAH R. BRESSMAN1*, 1 2 STACY C. FARINA , AND ALICE C. GIBB 1Cornell University, Ithaca, New York 2Northern Arizona University, Flagstaff, Arizona ABSTRACT Mummichogs (Fundulus heteroclitus; Cyprinodontiformes) are intertidal killifish that can breathe air and locomote on land. Our goals were to characterize the terrestrial locomotion of mummichogs and determine their method of navigation towards water in a terrestrial environment. We used high-speed video to record behavior during stranding experiments and found that mummichogs use a tail-flip jump to move overland, similarly to other Cyprinodontiformes. However, mummichogs also prop themselves upright into a prone position between each jump, a previously undescribed behavior. After becoming prone, mummichogs rotate about their vertical axis, directing the caudal fin towards the water. Then, they roll back onto their lateral aspect and use a tail-flip behavior to leap into a caudally-directed, ballistic flight path. We conducted experiments to determine the sensory stimulus used to locate a body of water by placing mummichogs on a square platform with one side adjacent to a sea table. Under artificial light, mummichogs moved towards the sea table with a higher frequency than towards the other sides. Under dark conditions, mummichogs did not show a preference for moving towards the sea table.