DOCSLIB.ORG

Biological Synopsis of Largemouth Bass (Micropterus Salmoides)

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Biological Synopsis of Largemouth Bass (Micropterus Salmoides) Biological Synopsis of Largemouth Bass (Micropterus salmoides) T.G. Brown, B. Runciman, S. Pollard, and A.D.A. Grant Fisheries and Oceans Canada Science Branch, Pacific Region Pacific Biological Station 3190 Hammond Bay Road Nanaimo, B.C. V9T 6N7 CANADA 2009 Canadian Manuscript Report of Fisheries and Aquatic Sciences 2884 Fisheries and Oceans Peches et Oceans 1+1 Canada Canada Canada Canadian Manuscript Report of Fisheries and Aquatic Sciences Manuscript reports contain scientific and technical information that contributes to existing knowledge but which deals with national or regional problems. Distribution is restricted to institutions or individuals located in particular regions of Canada. However, no restriction is placed on subject matter, and the series reflects the broad interests and policies ofthe Department ofFisheries and Oceans, namely, fisheries and aquatic sciences. Manuscript reports may be cited as full publications. The correct citation appears above the abstract of each report. Each report is abstracted in Aquatic Sciences and Fisheries Abstracts and indexed in the Department's annual index to scientific and technical publications. Numbers 1-900 in this series were issued as Manuscript Reports (Biological Series) of the Biological Board ofCanada, and subsequent to 1937 when the name ofthe Board was changed byAct of Parliament, as Manuscript Reports (Biological Series) of the Fisheries Research Board of Canada. Numbers 1426 - 1550 were issued as Department ofFisheries and the Environment, Fisheries and Marine Service Manuscript Reports. The current series name was changed with report number 1551. Manuscript reports are produced regionally but are numbered nationally. Requests for individual reports will be filled by the issuing establishment listed on the front cover and title page. Out-of-stock reports will be supplied for a fee by commercial agents. Rapport manuscrit canadien des sciences halientiques et aquatiques Les rapports manuscrits contiennent des renseignements scientifiques et techniques ques qui constituent une contribution aux connaissances actuelles, mais qui traitent de problemes nationaux ou regionaux. La distribution en est limitee aux orgauismes et aux personnes de regions particulieres du Canada. n n'y a aucune restriction quant au sujet; de fait, la secie reflete la vaste gamme des interets et des politiques du minisrere des Peches et des Oceans, c'est-a-dire les sciences halieutiques et aquatiques. Les rapports manuscrits peuvent etre cites comme des publications completes. Le titre exact parait au-dessus du resume de chaque rapport. Les rapports manuscrits sont resumes dans la revue Resumes des sciences aquatiques et halieutiques, et ils sont classes dans I'index annual des publications scientifiques et techniques du Ministere. Les numeros I a 900 de cette serie ont ete publies a titre de manuscrits (serle biologique) de I'Office de biologie du Canada, et apres Ie changement de la designation de cet organisme par decret du Parlement, en 1937, ont ete classes comme manuscrits (serie biologique) de l'Office des recherches sur les pecheries du Canada. Les numeros 901 a 1425 ont 1516 publies a titre de rapports manuscrits de l'Office des recherches sur les pecheries du Canada. Les numeros 1426 a 1550 sont parus a titre de rapports manuscrits du Service des peches et de la mer, minisrere des Peches et de I'Environnement. Le nom actuel de la serie a 6t6 etabli lors de la parution du numero 1551. Les rapports rnanuscrits sont produits a l'echelon regional, mais numerotes a l'echelon national. Les demandes de rapports seront satisfaites par l'etablissement auteur dont Ie nom figure sur la couverture et la page du titre. Les rapports epuises seront foumis contre retribution par des agents commerciaux. Canadian Manuscript Report of Fisheries and Aquatic Sciences 2884 2009 BIOLOGICAL SYNOPSIS OF LARGEMOUTH BASS (Micropterus salmoides) by T.G. Brown, B. Runciman, S. Pollard, and A.D.A. Grant Fisheries and Oceans Canada Science Branch, Pacific Region Pacific Biological Station 3190 Hammond Bay Road Nanaimo, B.C. V9T 6N7 ii © Her Majesty the Queen in Right of Canada, 2009 Cat. No. Fs 97-4/2884E ISSN 0706-6473 Correct citation for this publication: Brown, T.G., Runciman, B., Pollard, S., and Grant, A.D.A. 2009. Biological synopsis of largemouth bass (Micropterus salmoides). Can. Manuscr. Rep. Fish. Aquat. Sci. 2884: v + 27 p. iii TABLE OF CONTENTS ABSTRACT...........................................................................................................v 1.0 INTRODUCTION ...........................................................................................1 1.1 NAME, CLASSIFICATION AND IDENTIFIERS..........................................1 1.2 DESCRIPTION...........................................................................................2 1.2.1 Taxonomy and genetics.......................................................................3 2.0 DISTRIBUTION...............................................................................................3 2.1 GLOBAL NATIVE DISTRIBUTION..............................................................3 2.2 NON-NATIVE DISTRIBUTION ....................................................................4 3.0 BIOLOGY AND NATURAL HISTORY............................................................6 3.1 AGE AND GROWTH..................................................................................6 3.2 PHYSIOLOGICAL TOLERANCES .............................................................6 3.2.1 Temperature ........................................................................................6 3.2.2 Dissolved oxygen and pH ....................................................................7 3.2.3 Turbidity...............................................................................................7 3.2.4 Salinity .................................................................................................7 3.3 REPRODUCTION ......................................................................................7 3.3.1 Spawning behaviour ............................................................................8 3.3.2 Larval care and development...............................................................8 3.3.3 Factors affecting reproductive success................................................9 3.4 FEEDING AND DIET..................................................................................9 3.4.1 Juvenile diet.........................................................................................9 3.4.2 Transition to piscivory ..........................................................................9 3.4.3 Adult diet............................................................................................10 3.5 HABITAT REQUIREMENTS ....................................................................11 3.5.1 Aquatic vegetation .............................................................................11 3.6 INTERSPECIFIC INTERACTIONS ..........................................................12 3.7 BEHAVIOUR AND MOVEMENTS............................................................12 3.7.1 Translocation .....................................................................................12 3.7.2 Diel movements .................................................................................12 3.7.3 Feeding behaviour .............................................................................12 3.8 DISEASES AND PARASITES..................................................................13 3.8.1 Largemouth bass virus.......................................................................13 3.8.2 Bass tapeworm ..................................................................................13 4.0 USE BY HUMANS .......................................................................................14 4.1 RECREATIONAL FISHING......................................................................14 4.2 COMMERCIAL FISHING..........................................................................14 4.3 AQUACULTURE ......................................................................................14 iv 5.0 IMPACTS ASSOCIATED WITH INTRODUCTIONS ....................................15 5.1 IMPACTS ON FAUNA..............................................................................15 5.1.1 Plankton, zooplankton, and macroinvertebrates ................................15 5.1.2 Fish other than salmonids..................................................................15 5.1.3 Salmonids ..........................................................................................16 5.1.4 Wildlife ...............................................................................................18 5.2 IMPACT SUMMARY ................................................................................18 6.0 LITERATURE CITED...................................................................................18 v ABSTRACT Brown, T. G., Runciman, B., Pollard, S., and Grant, A.D.A. 2009. Biological synopsis of largemouth bass (Micropterus salmoides). Can. Manuscr. Rep. Fish. Aquat. Sci. 2884: v + 27 p. This synopsis reviews biological information on the largemouth bass in support of a risk assessment evaluating the impacts of its expansion into non-native areas of Canada. Largemouth bass is native to the fresh waters of eastern-central North America. Its North American expansion started in the late 1800s and it is now one of the most widely distributed fishes
Load more

Recommended publications
  • KLMN Featured Creature Sculpins
    National Park Service Featured Creature U.S. Department of the Interior February 2021 Klamath Network Inventory & Monitoring Division Natural Resources Stewardship & Science Sculpins Cottidae General Description Habitat and Distribution Darting low through tide pools or lurking Sculpins occur in both marine and freshwater in stream bottoms, members of the large habitats of North America, Europe, and Asia, fish family, Cottidae, are commonly called with just a few marine species in the southern USFWS/ROGER TABOR sculpins. They also go by “bullhead” or “sea hemisphere. Most abundant in the North Prickly sculpin (Cottus asper) scorpion,” and even some very unflattering Pacific, they tend to frequent shallow water terms, like “double uglies.” You’re not likely and tide pools. In North American coldwa- to catch one on your fishing line, but if you ter streams, they overlap the same habitat as them to keep them oxygenated until they look carefully into ocean tide pools, you trout and salmon, including small headwater hatch a few weeks later into baby fish, known may spot these well camouflaged creatures streams, lakes, and rocky areas of lowland as fry. The fry will be sexually mature in time moving around the bottom. Most of the more rivers. Freshwater sculpin are sometimes the for the next breeding season. than 250–300 known species in this family are only abundant fish species in streams. Inland marine, though some live in freshwater. species found in Pacific Northwest streams Fun Facts include the riffle sculpin (Cottus gulosus), • Some sculpins are able to compress their Generally, sculpins are bottom-dwelling prickly sculpin (Cottus asper), and coastrange skull bones to fit inside small spaces.
    [Show full text]
  • Edna Assay Development
    Environmental DNA assays available for species detection via qPCR analysis at the U.S.D.A Forest Service National Genomics Center for Wildlife and Fish Conservation (NGC). Asterisks indicate the assay was designed at the NGC. This list was last updated in June 2021 and is subject to change. Please contact [email protected] with questions. Family Species Common name Ready for use? Mustelidae Martes americana, Martes caurina American and Pacific marten* Y Castoridae Castor canadensis American beaver Y Ranidae Lithobates catesbeianus American bullfrog Y Cinclidae Cinclus mexicanus American dipper* N Anguillidae Anguilla rostrata American eel Y Soricidae Sorex palustris American water shrew* N Salmonidae Oncorhynchus clarkii ssp Any cutthroat trout* N Petromyzontidae Lampetra spp. Any Lampetra* Y Salmonidae Salmonidae Any salmonid* Y Cottidae Cottidae Any sculpin* Y Salmonidae Thymallus arcticus Arctic grayling* Y Cyrenidae Corbicula fluminea Asian clam* N Salmonidae Salmo salar Atlantic Salmon Y Lymnaeidae Radix auricularia Big-eared radix* N Cyprinidae Mylopharyngodon piceus Black carp N Ictaluridae Ameiurus melas Black Bullhead* N Catostomidae Cycleptus elongatus Blue Sucker* N Cichlidae Oreochromis aureus Blue tilapia* N Catostomidae Catostomus discobolus Bluehead sucker* N Catostomidae Catostomus virescens Bluehead sucker* Y Felidae Lynx rufus Bobcat* Y Hylidae Pseudocris maculata Boreal chorus frog N Hydrocharitaceae Egeria densa Brazilian elodea N Salmonidae Salvelinus fontinalis Brook trout* Y Colubridae Boiga irregularis Brown tree snake*
    [Show full text]
  • Evaluating Coexistence of Fish Species with Coastal Cutthroat Trout in Low Order Streams of Western Oregon and Washington, USA
    fishes Article Evaluating Coexistence of Fish Species with Coastal Cutthroat Trout in Low Order Streams of Western Oregon and Washington, USA Kyle D. Martens 1,* and Jason Dunham 2 1 Washington Department of Natural Resources, 1111 Washington Street SE, Olympia, WA 98504, USA 2 U.S. Geological Survey, Forest and Rangeland Ecosystem Science Center, 3200 SW Jefferson Way, Corvallis, OR 97331, USA; [email protected] * Correspondence: [email protected] Abstract: When multiple species of fish coexist there are a host of potential ways through which they may interact, yet there is often a strong focus on studies of single species without considering these interactions. For example, many studies of forestry–stream interactions in the Pacific Northwest have focused solely on the most prevalent species: Coastal cutthroat trout. To examine the potential for interactions of other fishes with coastal cutthroat trout, we conducted an analysis of 281 sites in low order streams located on Washington’s Olympic Peninsula and along the central Oregon coast. Coastal cutthroat trout and juvenile coho salmon were the most commonly found salmonid species within these streams and exhibited positive associations with each other for both presence and density. Steelhead were negatively associated with the presence of coastal cutthroat trout as well as with coho salmon and sculpins (Cottidae). Coastal cutthroat trout most frequently shared streams with juvenile coho salmon. For densities of these co-occurring species, associations between these two species were relatively weak compared to the strong influences of physical stream conditions Citation: Martens, K.D.; Dunham, J. (size and gradient), suggesting that physical conditions may have more of an influence on density Evaluating Coexistence of Fish Species with Coastal Cutthroat Trout than species interactions.
    [Show full text]
  • List of Animal Species with Ranks October 2017
    Washington Natural Heritage Program List of Animal Species with Ranks October 2017 The following list of animals known from Washington is complete for resident and transient vertebrates and several groups of invertebrates, including odonates, branchipods, tiger beetles, butterflies, gastropods, freshwater bivalves and bumble bees. Some species from other groups are included, especially where there are conservation concerns. Among these are the Palouse giant earthworm, a few moths and some of our mayflies and grasshoppers. Currently 857 vertebrate and 1,100 invertebrate taxa are included. Conservation status, in the form of range-wide, national and state ranks are assigned to each taxon. Information on species range and distribution, number of individuals, population trends and threats is collected into a ranking form, analyzed, and used to assign ranks. Ranks are updated periodically, as new information is collected. We welcome new information for any species on our list. Common Name Scientific Name Class Global Rank State Rank State Status Federal Status Northwestern Salamander Ambystoma gracile Amphibia G5 S5 Long-toed Salamander Ambystoma macrodactylum Amphibia G5 S5 Tiger Salamander Ambystoma tigrinum Amphibia G5 S3 Ensatina Ensatina eschscholtzii Amphibia G5 S5 Dunn's Salamander Plethodon dunni Amphibia G4 S3 C Larch Mountain Salamander Plethodon larselli Amphibia G3 S3 S Van Dyke's Salamander Plethodon vandykei Amphibia G3 S3 C Western Red-backed Salamander Plethodon vehiculum Amphibia G5 S5 Rough-skinned Newt Taricha granulosa
    [Show full text]
  • The Native Trouts of the Genus Salmo of Western North America
    CItiEt'SW XHPYTD: RSOTLAITYWUAS 4 Monograph of ha, TEMPI, AZ The Native Trouts of the Genus Salmo Of Western North America Robert J. Behnke "9! August 1979 z 141, ' 4,W \ " • ,1■\t 1,es. • . • • This_report was funded by USDA, Forest Service Fish and Wildlife Service , Bureau of Land Management FORE WARD This monograph was prepared by Dr. Robert J. Behnke under contract funded by the U.S. Fish and Wildlife Service, the Bureau of Land Management, and the U.S. Forest Service. Region 2 of the Forest Service was assigned the lead in coordinating this effort for the Forest Service. Each agency assumed the responsibility for reproducing and distributing the monograph according to their needs. Appreciation is extended to the Bureau of Land Management, Denver Service Center, for assistance in publication. Mr. Richard Moore, Region 2, served as Forest Service Coordinator. Inquiries about this publication should be directed to the Regional Forester, 11177 West 8th Avenue, P.O. Box 25127, Lakewood, Colorado 80225. Rocky Mountain Region September, 1980 Inquiries about this publication should be directed to the Regional Forester, 11177 West 8th Avenue, P.O. Box 25127, Lakewood, Colorado 80225. it TABLE OF CONTENTS Page Preface ..................................................................................................................................................................... Introduction ..................................................................................................................................................................
    [Show full text]
  • Comparison of Exploited and Unexploited Yellow Perch Perca ¯Avescens (Mitchill) Populations in Nebraska Sandhill Lakes
    Fisheries Management and Ecology, 2001, 8, 533±542 Comparison of exploited and unexploited yellow perch Perca ¯avescens (Mitchill) populations in Nebraska Sandhill lakes C. P. PAUKERT & D. W. WILLIS Department of Wildlife and Fisheries Sciences, South Dakota State University, Brookings, SD, USA Abstract Exploitation can have a pronounced eect on ®sh populations. Yellow perch, Perca ¯avescens (Mitchill), populations in Nebraska Sandhill lakes were sampled in 1998 and 1999. Three of the 29 lakes containing yellow perch have been closed to ®shing for at least 10 years. Unexploited yellow perch populations had fast growth rates, but age structure was similar to exploited populations. For unexploited lakes combined, mortality and condition were not dierent from exploited lakes. However, one unexploited lake, Marsh Lake, had the fastest growth, highest proportion of older ®sh and highest condition of all populations sampled. This lake had low interspeci®c competition and high invertebrate abundance, which likely resulted in fast growth and high condition. However, size structure and growth were also related to lake productivity. Although exploitation may aect yellow perch populations, other factors (food availability, predators and lake productivity) also play an important role in structuring these populations. Regardless, these results indicate the potential of yellow perch in Nebraska Sandhill lakes given no exploitation. KEYWORDS: exploitation, Nebraska, Perca ¯avescens, productivity, yellow perch. Introduction Exploitation can substantially alter ®sh population characteristics. Unexploited populations typically have a high proportion of larger, older ®sh (Goedde & Coble 1981), which also may be in lower body condition (Van Den Avyle & Hayward 1999). Population size structure and abundance may be diminished soon after a lake is open to angling (Redmond 1974; Goedde & Coble 1981), which has been attributed to high harvest of naõÈ ve ®sh.
    [Show full text]
  • Coastal Cutthroat Trout (Oncorhynchus Clarkii Clarkii) Data
    Coastal Cutthroat Trout (Oncorhynchus clarkii clarkii) Data: 1999 NOAA Status Review; 2007 PSMFC Review Partners: AK, BC, CA, OR , WA, FWS, USFS, USGS, NMFS, PSMFC, Tribes._____________ Species Status review: evidence that current smolt counts represent a fragment of historic counts. In addition, we are Coastal cutthroat trout (Oncorhynchus clarkii certain about the disappearance of many clarkii) have been considered a vulnerable populations that were once fished in certain indicator species in recent years and have been highly developed ecoregions. petitioned for listing under the Endangered Species Act (ESA). In 1996, National Marine CCT are the only sub-species of O. clarkii Fisheries Service (NMFS) listed the Umpqua without a multi-agency management plan in River coastal cutthroat trout (CCT) as a place. In 2006, in an effort to remedy this threatened species under the Endangered situation and as part of the decision to withdraw Species Act of 1973, as amended (16 U.S.C. the listing of the SWWC-ESU, Pacific States 1531 et seq). Following this listing, NMFS Marine Fisheries Commission (PSMFC) and conducted a status review of the species FSW initiated a voluntary effort among state, throughout their distributional range in the tribal, federal and provincial agencies that lower 48 state region of North America. represent agencies throughout the distributional During that process NMFS identified six range of CCT. The goal of this effort is to Evolutionary Significant Units (ESU’s). The coordinate agency efforts, share knowledge Fish and Wildlife Service (FWS) and NMFS (meta data approach), and advance our have, in the past, jointly managed CCT under understanding of CCT with the long-term goal of the ESA and on April 5, 1999, the agencies developing a consistent framework for the published a joint proposal to list the management, research, restoration, and southwestern Washington-Columbia River conservation of the subspecies.
    [Show full text]
  • Guadalupe Bass Micropterus Treculii (Vaillant & Bocourt, 1874)
    American Fisheries Society Symposium 82:55–60, 2015 © 2015 by the American Fisheries Society Guadalupe Bass Micropterus treculii (Vaillant & Bocourt, 1874) STEPHEN G. CURTIS* Aquatic Station, Department of Biology, Texas State University 601 University Drive, San Marcos, Texas 78666, USA JOSHUAH S. PERKIN Division of Biology, Kansas State University 116 Ackert Hall, Manhattan, Kansas 66506, USA PRESTON T. BEAN Department of Natural Resources Management, Texas Tech University 254 Red Raider Lane, Junction, Texas 76849, USA MARIO L. SULLIVAN AND TIMOTHY H. BONNER Aquatic Station, Department of Biology, Texas State University 601 University Drive, San Marcos, Texas 78666, USA Taxonomic Status Guadalupe Bass Micropterus treculii diverged from northeastern ancestral Micropterus (Conner and Suttkus1986) approximately 4.1–5.7 million years ago during the late Miocene or early Pliocene (Near et al. 2003, 2005). The species was originally described by Cope (1880) as the Texas (Johnson Fork of the Llano River) version of Florida Bass M. floridanus, differing slightly in some morphometric and meristic counts from its Florida counterpart. Since that time, Guadalupe Bass have undergone sev- eral redescriptions, including Dioplites treculii (Vaillant and Bocourt 1883), M. nuecensis var. treculii (Vaillant and Bocourt 1883), M. salmoides (Jordan and Gilbert 1886, Evermann and Kendall 1894), M. pseudaplites (Hubbs 1927), M. punctulatus punctulatus (Hubbs and Bailey 1940), M. p. treculii (Hubbs and Bailey 1942), M. treculi (Jurgens and Hubbs 1953; Hubbs 1954), and its current nomenclature M. treculii (Nelson et al. 2004). Johnson et al. (2001) determined that the sister taxa of Guadalupe Bass is Spotted Bass M. punctulatus based on mitochondrial DNA analyses.
    [Show full text]
  • Alabama Bass (Micropterus Henshalli) Ecological Risk Screening Summary
    1 Larry Hogan, Governor | Jeannie Haddaway-Riccio, Secretary Alabama Bass (Micropterus henshalli) Ecological Risk Screening Summary Joseph W. Love, October 2020 [Maryland Department of Natural Resources] 1. Background and Description Alabama bass (Micropterus henshalli) is one of at least twelve recognized temperate black basses indigenous to the freshwater rivers and lakes of North America. It is an aggressive species that generally does not grow as big as largemouth bass, can rapidly become abundant when introduced into an ecosystem, competes with other black bass for food, and can genetically pollute populations of smallmouth bass (M. dolomieu) and largemouth bass (M. salmoides), as well as other species of black bass (e.g., Shoal Bass, Spotted Bass). Because of its fighting ability, anglers from black bass fishing clubs have illegally introduced Alabama bass to Georgia, North Carolina, and Virginia waters. It has been introduced by government agencies in Texas and California, and possibly abroad in South Africa. Where introduced, the species has not been eradicated, though harvest may be encouraged. Anglers have debated the merits of a control program dedicated to Alabama bass because some enjoy fishing for the species, while others recognize the problems it poses to other black bass species. Alabama bass has not been reported in Maryland but there is Photo: Image courtesy of concern anglers could introduce the species into Maryland. Matthew A. Williams, posted Additionally, out-of-state suppliers might unwittingly sell on iNaturalist. Alabama bass, which look similar to largemouth bass, to Marylanders. Alabama bass was a subspecies of spotted bass and was widely referred to as Alabama spotted bass.
    [Show full text]
  • Species Fact Sheet Coastal Cutthroat Trout Oncorhynchus Clarkii
    Species Fact Sheet Coastal Cutthroat Trout Oncorhynchus clarkii STATUS: SPECIES OF The Southwestern Washington/Lower Columbia CONCERN River Distinct Population Southwestern Segment of Coastal cutthroat Washington/Lower trout potentially occurs in these Washington counties: Thurston, Columbia River Distinct Lewis, Yakima, Mason, Pacific, Population Segment Grays Harbor, Wahkiakum, Cowlitz, Clark, Skaminia, Klickitat, (Map may reflect historical as well as recent sightings) In 1999, the southwestern Washington/lower Columbia River Distinct Population Segment of coastal cutthroat trout, Oncorhynchus clarkii clarkii, was listed as threatened by National Marine Fisheries Service and the U.S. Fish and Wildlife Service FR 64(64): 16397-414. Subsequently, the Fish and Wildlife Service assumed sole regulatory jurisdiction. Based on changes in forest management regulation, the latest information indicating better than expected total populations in a large portion of the area, and an improved understanding of the ability of freshwater forms to produce anadromous progeny, the Fish and Wildlife Service withdrew the listing proposal in 2002. Current and Historical Status This Distinct Population Segment (DPS) includes populations in the Columbia River and its tributaries downstream from the Klickitat River in Washington and Fifteenmile Creek in Oregon to the Columbia River estuary; and the Willamette River and its tributaries downstream from Willamette Falls, to its confluence with the Columbia River, as well as in tributaries of Gray's Harbor and Willapa Bay. The southwestern Washington-lower Columbia River region historically supported highly productive coastal cutthroat trout populations. Coastal cutthroat trout are well distributed in most river basins in this geographic region, although probably in lower numbers relative to historical population sizes.
    [Show full text]
  • Predation of Juvenile Chinook Salmon by Predatory Fishes in Three Areas of the Lake Washington Basin
    PREDATION OF JUVENILE CHINOOK SALMON BY PREDATORY FISHES IN THREE AREAS OF THE LAKE WASHINGTON BASIN Roger A. Tabor, Mark T. Celedonia, Francine Mejia1, Rich M. Piaskowski2, David L. Low3, U.S. Fish and Wildlife Service Western Washington Fish and Wildlife Office Fisheries Division 510 Desmond Drive SE, Suite 102 Lacey, Washington 98513 Brian Footen, Muckleshoot Indian Tribe 39015 172nd Avenue SE Auburn, Washington 98092 and Linda Park, NOAA Fisheries Northwest Fisheries Science Center Conservation Biology Molecular Genetics Laboratory 2725 Montlake Blvd. E. Seattle, Washington 98112 February 2004 1Present address: U.S. Geological Survey, 6924 Tremont Road, Dixon, California 95620 2Present address: Bureau of Reclamation, 6600 Washburn Way, Klamath Falls, Oregon 97603 3Present address: Washington Department of Fish and Wildlife, Olympia, Washington 98501 SUMMARY Previous predator sampling of the Lake Washington system focused on predation of sockeye salmon (Oncorhynchus nerka) and little effort was given to quantify predation of Chinook salmon (O. tshawytscha). In 1999 and 2000, we sampled various fish species to better understand the effect that predation has on Chinook salmon populations. Additionally, we reviewed existing data to get a more complete picture of predation. We collected predators in three areas of the Lake Washington basin where juvenile Chinook salmon may be particularly vulnerable to predatory fishes. Two of these areas, the Cedar River and the south end of Lake Washington are important rearing areas. In these areas, Chinook salmon may be vulnerable because they are small and are present for a relatively long period of time. The other study area, Lake Washington Ship Canal (LWSC; includes Portage Bay, Lake Union, Fremont Cut, and Salmon Bay), is a narrow migratory corridor where Chinook salmon smolts are concentrated during their emigration to Puget Sound.
    [Show full text]
  • Fine Structure of the Retina of Black Bass, Micropterus Salmoides (Centrarchidae, Teleostei)
    Histol Histopathol (1999) 14: 1053-1065 Histology and 001: 10.14670/HH-14.1053 Histopathology http://www.hh.um.es From Cell Biology to Tissue Engineering Fine structure of the retina of black bass, Micropterus salmoides (Centrarchidae, Teleostei) M. Garcia and J. de Juan Department of Biotechnology, University of Alicante, Alicante, Spain Summary. The structure of light- and dark-adapted 1968), 4) regular cone mosaics (Wagner, 1978), 5) the retina of the black bass, Micropterus salmoides has been existence of a well developed retinal tapetum in studied by light and electron microscopy. This retina nocturnal and bottom-living species (Wagner and Ali, lacks blood vessels at all levels. The optic fiber layer is 1978), 6) presence of foveae or areas with an increase in divided into fascicles by the processes of Muller cells photoreceptors and other neurons (Wagner, 1990), and 7) and the ganglion cell layer is represented by a single row a marked synaptic plasticity as is demonstrated by the of voluminous cells. The inner nuclear layer consists of formation of spinules (Wagner, 1980) during light two layers of horizontal cells and bipolar, amacrine and adaptation and their disappearance during dark­ interplexiform cells. In the outer plexiform layer we adaptation, and others. In summary, these features observed the synaptic terminals of photoreceptor celis, demonstrate the importance of vision in the mode of life rod spherules and cone pedicles and terminal processes and survival of the species. of bipolar and horizontal cells. The spherules have a Micropterus salmoides, known as black bass, is a single synaptic ribbon and the pedicles possess multiple member of the family Centrarchidae (Order Perciformes) synaptic ribbons.
    [Show full text]