DOCSLIB.ORG

Volume Five, 2006

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Volume Five, 2006 what is PISCO The Partnership for Interdisciplinary Studies of Coastal Oceans is a long- term program of scientific research and training dedicated to advancing the understanding of the California Current Large Marine Ecosystem along the U.S. West Coast. PISCO is pioneering an integrated approach to studying this complex, rich, and economically important environment. PISCO is distinguished by its interdisciplinary approach, large geographic extent, and decades-long time frame. PISCO conducts monitoring and experiments along more than 1,200 miles (2,000 kilometers) of coastline, as well as laboratory and theoretical studies. The research incorporates oceanography, ecology, chemistry, physiology, molecular biology, genetics, and mathematical modeling to gain novel insights into systems ranging from individual animals and plants to the whole ecosystem. PISCO’s findings apply to conservation and resource management issues. PISCO scientists participate in local, regional, national, and international initiatives for marine environmental planning. Through its university courses, PISCO helps to train the next generation of scientists in interdisciplinary approaches to marine research and policy. Established in 1999 with funding from The David and Lucile Packard Foundation, PISCO is led by scientists from Oregon State University (OSU), Stanford University’s Hopkins Marine Station, University of California at Santa Cruz (UCSC), and University of California at Santa Barbara (UCSB). As of 2005, core PISCO activities are funded by collaborative grants from The David and Lucile Packard Foundation and the Gordon and Betty Moore Foundation. The core support and additional funding from diverse public and private sources make this unique partnership possible. PISCO View from the Wave Crest Coastal Connections Volume 5 Table of Contents ISCO Coastal Connections is an annual publication of the Partnership for 1 View from the Wave Crest Interdisciplinary Studies of Coastal Oceans 2 Patterns of Change P (PISCO). We welcome you to the fifth issue in the Reproductive Hotspots series that highlights major findings, research projects, Fish Population Genetics as well as outreach and education. Physics of Rocky Shores The interdisciplinary PISCO consortium is an interconnected group of estab- Identifying Fish Birthplaces lished scientists and postdoctoral fellows, science and policy coordinators, data managers, graduate students, and research technicians. The consortium’s work 6 Oceanographic Frontiers is further strengthened by its collaborations with government agencies, non- Monitoring Oceanography government organizations, and academic institutions. This issue of PISCO Modeling Drifting Young Coastal Connections reflects these cumulative efforts and their value for marine Currents and Dispersal Paths policy and management. Articles in this year’s “Patterns of Change” section feature some of our latest 10 Ecological Linkages findings about variations over time and distance in the marine ecology and Changes in Kelp Forests oceanography of the U.S. West Coast. “Oceanographic Frontiers” describes Oceans Affect Shore Ecology PISCO’s extensive ocean-observing network and our research into oceano- Effects of Climate Warming graphic processes in coastal waters. The “Ecological Linkages” section explores new findings about the connections between oceanography and ecological 14 Interdisciplinary Training changes. Results from PISCO’s graduate student programs, including our new & Research marine policy course, are highlighted in “Interdisciplinary Training.” “Sharing PISCO Training Courses the Science” showcases examples of PISCO’s initiatives to communicate scien- 1 Student Showcase tific findings and methods to broader audiences. We invite you to enjoy this issue of PISCO Coastal Connections and the 16 Sharing the Science achievements described on the following pages. Teaching Groups to Monitor PISCO Advises California Straight Talks on Fishing Methods of Stock Assessment PISCO Coastal Connections Program Coordinator: Kristen Milligan PISCO Coastal Connections Coordinators: Satie Airamé, Liz Riley, Cinamon Vann, Amy Windrope Editor & Writer: Peter H. Taylor Creative Director: Monica Pessino Graphics Assistant: Julia Kwinto GIS Support: Will McClintock Line Drawings: Linda D. Nelson Cover photo: Painted greenling (Oxylebius pictus) © 2006 Luke Miller. Cover photo insets, top to bottom: Wyatt Patry, Francis Chan, Jane Lubchenco, Monica Pessino. Opposite page photos, left to right: Gretchen Hofmann, Giacomo Bernardi, Luke Miller, Amy Wagner PISCO Coastal Connections is a publication of PISCO principal investigators (top to bottom, left to right): Libe Washburn (UCSB), Pete Raimondi (UCSC), Steve the Partnership for Interdisciplinary Studies of Gaines (UCSB), Mark Denny (Stanford), Margaret McManus (UCSC), Jane Lubchenco (OSU), Jack Barth (OSU), Robert Coastal Oceans (PISCO). Contents © 2006. Warner (UCSB), Steve Palumbi (Stanford), George Somero (Stanford), Mark Carr (UCSC), and Bruce Menge (OSU). For more information about PISCO or to join Not shown: Gretchen Hofmann (UCSB). Photo: Satie Airamé the mailing list for future publications, please contact the consortium at the addresses listed on the back cover. 0)3#/#OASTAL#ONNECTIONS6OLUME Geographic Differences in Barnacle Reproduction In monitoring surveys, PISCO scientists found that barnacles living on the coast near Cape Perpetua, Oregon, produced approximately five times as many offspring as barnacles near Cape Foulweather, Oregon. This reproductive difference may arise from differences in food availability. The waters near Cape Perpetua contain much more phytoplankton, one of the barnacles’ major foods. In targeted experiments, the scientists uncovered even greater differences, as Cape Perpetua barnacles produced 120 times more young than barnacles from Cape Foulweather (see figure above). Other marine species are likely to have reproductive hotspots, and identifying these hotspots could improve management of marine ecosystems (see article, next page). patterns OF change Hotspots for Reproduction and Conservation arine scientists have long suspected that populations of invertebrates living in different places M in the sea may differ in their production of young, but scientists have rarely tested this idea empirically. Using the acorn barnacle (Balanus glandula) as a model, PISCO/OSU doctoral student Heather Leslie Barnacles (Balanus glandula) on the rocky shore. examined geographic variation in barnacle reproduction along the Oregon Photo: Sheri Etchemendy coast to find out whether food supply affected the number of offspring produced. Her research builds on PISCO’s prior findings that phytoplankton, which barnacles eat, are abundant near Cape Perpetua but scarce near Cape Foulweather. Leslie’s research offers an example of how marine scientists can effectively gather information on spatial variation in reproduction and Science of Marine Reserves link it to ecological and oceanographic processes. Leslie collaborated on the Marine reserves offer greater protec- research with PISCO principal investigators Jane Lubchenco and Bruce Menge, tion than any other type of marine postdoctoral fellow Francis Chan, and OSU honors student Erin Breck. protected area (MPA) by completely The research highlights the value of understanding how ecological and protecting animals, plants, and their oceanographic processes influence marine populations. Apparently similar habitat from removal or alteration. habitats along the coast differ markedly in their ecological functioning (see Other MPA designations may allow findings, opposite page). Particular sites may be especially significant sources certain human uses, like recreational of young for some marine invertebrates, serving as reproductive hotspots. 3 fishing. Design of marine reserves and Leslie’s findings are relevant to design of marine protected areas because they other protected areas can be informed suggest the potential to identify and conserve sites with high reproductive by scientific research regarding species rates for certain species. distributions, abundance, dispersal, population replenishment, and inter- Heather Leslie is now a postdoctoral fellow at Princeton University. actions with other species. Research Publication: Barnacle reproductive hotspots linked to nearshore ocean conditions. Proceedings of shows that marine reserves can help the National Academy of Sciences 102 (2005): 10534–10539. to protect marine habitats and species, and in some cases restore populations of depleted species. Fish, shellfish, and seaweeds inside marine reserves tend to be larger, more abundant, and more diverse than they are in non-reserve areas. These benefits of marine reserves can boost marine ecosystem resilience and productivity. For more information about the science of marine reserves, visit www.piscoweb.org. Heather Leslie studying barnacle reproduction at Fogarty Creek, along the Oregon coast. Photo: Jane Lubchenco 0)3#/#OASTAL#ONNECTIONS6OLUME Genetics Show Distinct Rockfish Populations PISCO/UCSC graduate student Martha Burford is studying geographic varia- tion in the population genetics of blue rockfish (Sebastes mystinus) and kelp rockfish (S. atrovirens) along the California coast. Adult rockfishes generally do not travel far from the kelp beds and rocky reefs where they live. However, long-distance dispersal of their young might link the state’s rockfishes into one genetically similar population. Burford uses genetic markers, called microsat- ellite loci, to detect genetic differences
Load more

Recommended publications
  • Rockfish (Sebastes) That Are Evolutionarily Isolated Are Also
    Biological Conservation 142 (2009) 1787–1796 Contents lists available at ScienceDirect Biological Conservation journal homepage: www.elsevier.com/locate/biocon Rockfish (Sebastes) that are evolutionarily isolated are also large, morphologically distinctive and vulnerable to overfishing Karen Magnuson-Ford a,b, Travis Ingram c, David W. Redding a,b, Arne Ø. Mooers a,b,* a Biological Sciences, Simon Fraser University, 8888 University Drive, Burnaby BC, Canada V5A 1S6 b IRMACS, Simon Fraser University, 8888 University Drive, Burnaby BC, Canada V5A 1S6 c Department of Zoology and Biodiversity Research Centre, University of British Columbia, #2370-6270 University Blvd., Vancouver, Canada V6T 1Z4 article info abstract Article history: In an age of triage, we must prioritize species for conservation effort. Species more isolated on the tree of Received 23 September 2008 life are candidates for increased attention. The rockfish genus Sebastes is speciose (>100 spp.), morpho- Received in revised form 10 March 2009 logically and ecologically diverse and many species are heavily fished. We used a complete Sebastes phy- Accepted 18 March 2009 logeny to calculate a measure of evolutionary isolation for each species and compared this to their Available online 22 April 2009 morphology and imperilment. We found that evolutionarily isolated species in the northeast Pacific are both larger-bodied and, independent of body size, morphologically more distinctive. We examined Keywords: extinction risk within rockfish using a compound measure of each species’ intrinsic vulnerability to Phylogenetic diversity overfishing and categorizing species as commercially fished or not. Evolutionarily isolated species in Extinction risk Conservation priorities the northeast Pacific are more likely to be fished, and, due to their larger sizes and to life history traits Body size such as long lifespan and slow maturation rate, they are also intrinsically more vulnerable to overfishing.
    [Show full text]
  • Southward Range Extension of the Goldeye Rockfish, Sebastes
    Acta Ichthyologica et Piscatoria 51(2), 2021, 153–158 | DOI 10.3897/aiep.51.68832 Southward range extension of the goldeye rockfish, Sebastes thompsoni (Actinopterygii: Scorpaeniformes: Scorpaenidae), to northern Taiwan Tak-Kei CHOU1, Chi-Ngai TANG2 1 Department of Oceanography, National Sun Yat-sen University, Kaohsiung, Taiwan 2 Department of Aquaculture, National Taiwan Ocean University, Keelung, Taiwan http://zoobank.org/5F8F5772-5989-4FBA-A9D9-B8BD3D9970A6 Corresponding author: Tak-Kei Chou ([email protected]) Academic editor: Ronald Fricke ♦ Received 18 May 2021 ♦ Accepted 7 June 2021 ♦ Published 12 July 2021 Citation: Chou T-K, Tang C-N (2021) Southward range extension of the goldeye rockfish, Sebastes thompsoni (Actinopterygii: Scorpaeniformes: Scorpaenidae), to northern Taiwan. Acta Ichthyologica et Piscatoria 51(2): 153–158. https://doi.org/10.3897/ aiep.51.68832 Abstract The goldeye rockfish,Sebastes thompsoni (Jordan et Hubbs, 1925), is known as a typical cold-water species, occurring from southern Hokkaido to Kagoshima. In the presently reported study, a specimen was collected from the local fishery catch off Keelung, northern Taiwan, which represents the first specimen-based record of the genus in Taiwan. Moreover, the new record ofSebastes thompsoni in Taiwan represented the southernmost distribution of the cold-water genus Sebastes in the Northern Hemisphere. Keywords cold-water fish, DNA barcoding, neighbor-joining, new recorded genus, phylogeny, Sebastes joyneri Introduction On an occasional survey in a local fish market (25°7.77′N, 121°44.47′E), a mature female individual of The rockfish genusSebastes Cuvier, 1829 is the most spe- Sebastes thompsoni (Jordan et Hubbs, 1925) was obtained ciose group of the Scorpaenidae, which comprises about in the local catches, which were caught off Keelung, north- 110 species worldwide (Li et al.
    [Show full text]
  • Common Fishes of California
    COMMON FISHES OF CALIFORNIA Updated July 2016 Blue Rockfish - SMYS Sebastes mystinus 2-4 bands around front of head; blue to black body, dark fins; anal fin slanted Size: 8-18in; Depth: 0-200’+ Common from Baja north to Canada North of Conception mixes with mostly with Olive and Black R.F.; South with Blacksmith, Kelp Bass, Halfmoons and Olives. Black Rockfish - SMEL Sebastes melanops Blue to blue-back with black dots on their dorsal fins; anal fin rounded Size: 8-18 in; Depth: 8-1200’ Common north of Point Conception Smaller eyes and a bit more oval than Blues Olive/Yellowtail Rockfish – OYT Sebastes serranoides/ flavidus Several pale spots below dorsal fins; fins greenish brown to yellow fins Size: 10-20in; Depth: 10-400’+ Midwater fish common south of Point Conception to Baja; rare north of Conception Yellowtail R.F. is a similar species are rare south of Conception, while being common north Black & Yellow Rockfish - SCHR Sebastes chrysomelas Yellow blotches of black/olive brown body;Yellow membrane between third and fourth dorsal fin spines Size: 6-12in; Depth: 0-150’ Common central to southern California Inhabits rocky areas/crevices Gopher Rockfish - SCAR Sebastes carnatus Several small white blotches on back; Pale blotch extends from dorsal spine onto back Size: 6-12 in; Depth: 8-180’ Common central California Inhabits rocky areas/crevice. Territorial Copper Rockfish - SCAU Sebastes caurinus Wide, light stripe runs along rear half on lateral line Size:: 10-16in; Depth: 10-600’ Inhabits rocky reefs, kelpbeds,
    [Show full text]
  • A Checklist of the Fishes of the Monterey Bay Area Including Elkhorn Slough, the San Lorenzo, Pajaro and Salinas Rivers
    f3/oC-4'( Contributions from the Moss Landing Marine Laboratories No. 26 Technical Publication 72-2 CASUC-MLML-TP-72-02 A CHECKLIST OF THE FISHES OF THE MONTEREY BAY AREA INCLUDING ELKHORN SLOUGH, THE SAN LORENZO, PAJARO AND SALINAS RIVERS by Gary E. Kukowski Sea Grant Research Assistant June 1972 LIBRARY Moss L8ndillg ,\:Jrine Laboratories r. O. Box 223 Moss Landing, Calif. 95039 This study was supported by National Sea Grant Program National Oceanic and Atmospheric Administration United States Department of Commerce - Grant No. 2-35137 to Moss Landing Marine Laboratories of the California State University at Fresno, Hayward, Sacramento, San Francisco, and San Jose Dr. Robert E. Arnal, Coordinator , ·./ "':., - 'I." ~:. 1"-"'00 ~~ ~~ IAbm>~toriesi Technical Publication 72-2: A GI-lliGKL.TST OF THE FISHES OF TtlE MONTEREY my Jl.REA INCLUDING mmORH SLOUGH, THE SAN LCRENZO, PAY-ARO AND SALINAS RIVERS .. 1&let~: Page 14 - A1estria§.·~iligtro1ophua - Stone cockscomb - r-m Page 17 - J:,iparis'W10pus." Ribbon' snailt'ish - HE , ,~ ~Ei 31 - AlectrlQ~iu.e,ctro1OphUfi- 87-B9 . .', . ': ". .' Page 31 - Ceb1diehtlrrs rlolaCewi - 89 , Page 35 - Liparis t!01:f-.e - 89 .Qhange: Page 11 - FmWulns parvipin¢.rl, add: Probable misidentification Page 20 - .BathopWuBt.lemin&, change to: .Mhgghilu§. llemipg+ Page 54 - Ji\mdJ11ui~~ add: Probable. misidentifioation Page 60 - Item. number 67, authOr should be .Hubbs, Clark TABLE OF CONTENTS INTRODUCTION 1 AREA OF COVERAGE 1 METHODS OF LITERATURE SEARCH 2 EXPLANATION OF CHECKLIST 2 ACKNOWLEDGEMENTS 4 TABLE 1
    [Show full text]
  • Multiple Paternity and Maintenance of Genetic Diversity in the Live-Bearing Rockfishes Sebastes Spp
    Vol. 357: 245–253, 2008 MARINE ECOLOGY PROGRESS SERIES Published April 7 doi: 10.3354/meps07296 Mar Ecol Prog Ser Multiple paternity and maintenance of genetic diversity in the live-bearing rockfishes Sebastes spp. John R. Hyde1, 2,*, Carol Kimbrell2, Larry Robertson2, Kevin Clifford3, Eric Lynn2, Russell Vetter2 1Scripps Institution of Oceanography, 9500 Gilman Drive, La Jolla, California 92093-0203, USA 2Southwest Fisheries Science Center, NOAA/NMFS, 8604 La Jolla Shores Dr., La Jolla, California 92037, USA 3Oregon Coast Aquarium, 2820 SE Ferry Slip Rd, Newport, Oregon 97365, USA ABSTRACT: The understanding of mating systems is key to the proper management of exploited spe- cies, particularly highly fecund, r-selected fishes, which often show strong discrepancies between census and effective population sizes. The development of polymorphic genetic markers, such as codominant nuclear microsatellites, has made it possible to study the paternity of individuals within a brood, helping to elucidate the species’ mating system. In the present study, paternity analysis was performed on 35 broods, representing 17 species of the live-bearing scorpaenid genus Sebastes. We report on the finding of multiple paternity from several species of Sebastes and show that at least 3 sires can contribute paternity to a single brood. A phylogenetically and ecologically diverse sample of Sebastes species was examined, with multiple paternity found in 14 of the 35 broods and 10 of the 17 examined species, we suggest that this behavior is not a rare event within a single species and is likely common throughout the genus. Despite high variance in reproductive success, Sebastes spp., in general, show moderate to high levels of genetic diversity.
    [Show full text]
  • U.S. West Coast Groundfish Buyers Manual
    U.S. West Coast groundfish manual Powered by FISHCHOICE.COM The U.S. West Coast groundfish fishery is the backbone of many fishing communities. Consisting of more than 90 different species of flatfish, rockfish and roundfish caught in waters off of California, Oregon and Washington, the fishery is a true environmental success story. After being declared a federal disaster in 2000, this fishery has made dramatic improvements through full catch accountability, ecosystem protections, incentives to reduce bycatch and avoidance of overfished species. In 2014, the fishery received Marine Stewardship Council certification and Seafood Watch removed 21 species from “Avoid (red)” status and moved them to either “Good Alternative (yellow)” or “Best Choice (green).” The abundance, variety, and quality of these fish are still under- appreciated in the marketplace, however, and more than half the fishing quota goes uncaught every year. This Groundfish Manual is your guide to some of the West Coast’s most prominent species. Inside, you will find photos of the fish whole and filleted, along with cooking suggestions, flavor profiles, and details on availability, sustainability and more. We have chosen these 13 species to profile because they are among the best recognized and studied, but keep in mind that many lesser known species from this fishery, including a number of species of rockfish, are also managed sustainably and deserve a place on America’s table. Help make U.S. West Coast Groundfish a success story for the ocean, American fishing communities
    [Show full text]
  • Guide to the Coastal Marine Fishes of California
    STATE OF CALIFORNIA THE RESOURCES AGENCY DEPARTMENT OF FISH AND GAME FISH BULLETIN 157 GUIDE TO THE COASTAL MARINE FISHES OF CALIFORNIA by DANIEL J. MILLER and ROBERT N. LEA Marine Resources Region 1972 ABSTRACT This is a comprehensive identification guide encompassing all shallow marine fishes within California waters. Geographic range limits, maximum size, depth range, a brief color description, and some meristic counts including, if available: fin ray counts, lateral line pores, lateral line scales, gill rakers, and vertebrae are given. Body proportions and shapes are used in the keys and a state- ment concerning the rarity or commonness in California is given for each species. In all, 554 species are described. Three of these have not been re- corded or confirmed as occurring in California waters but are included since they are apt to appear. The remainder have been recorded as occurring in an area between the Mexican and Oregon borders and offshore to at least 50 miles. Five of California species as yet have not been named or described, and ichthyologists studying these new forms have given information on identification to enable inclusion here. A dichotomous key to 144 families includes an outline figure of a repre- sentative for all but two families. Keys are presented for all larger families, and diagnostic features are pointed out on most of the figures. Illustrations are presented for all but eight species. Of the 554 species, 439 are found primarily in depths less than 400 ft., 48 are meso- or bathypelagic species, and 67 are deepwater bottom dwelling forms rarely taken in less than 400 ft.
    [Show full text]
  • Guide to Rockfishes (Scorpaenidae) of the Genera Sebastes, Sebastolobus, and Adelosebastes of the Northeast Pacific Ocean, Second Edition
    NOAA Technical Memorandum NMFS-AFSC-117 Guide to Rockfishes (Scorpaenidae) of the Genera Sebastes, Sebastolobus, and Adelosebastes of the Northeast Pacific Ocean, Second Edition by James Wilder Orr, Michael A. Brown, and David C. Baker U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Marine Fisheries Service Alaska Fisheries Science Center August 2000 NOAA Technical Memorandum NMFS The National Marine Fisheries Service's Alaska Fisheries Science Center uses the NOAA Technical Memorandum series to issue informal scientific and technical publications when complete formal review and editorial processing are not appropriate or feasible. Documents within this series reflect sound professional work and may be referenced in the formal scientific and technical literature. The NMFS-AFSC Technical Memorandum series of the Alaska Fisheries Science Center continues the NMFS-F/NWC series established in 1970 by the Northwest Fisheries Center. The new NMFS-NWFSC series will be used by the Northwest Fisheries Science Center. This document should be cited as follows: Orr, J. W., M. A. Brown, and D. C. Baker. 2000. Guide to rockfishes (Scorpaenidae) of the genera Sebastes, Sebastolobus, and Adelosebastes of the Northeast Pacific Ocean, second edition. U.S. Dep. Commer., NOAA Tech. Memo. NMFS-AFSC-117, 47 p. Reference in this document to trade names does not imply endorsement by the National Marine Fisheries Service, NOAA. NOAA Technical Memorandum NMFS-AFSC-117 Guide to Rockfishes (Scorpaenidae) of the Genera Sebastes, Sebastolobus, and Adelosebastes of the Northeast Pacific Ocean, Second Edition by J. W. Orr,1 M. A. Brown, 2 and D. C. Baker 2 1 Resource Assessment and Conservation Engineering Division Alaska Fisheries Science Center 7600 Sand Point Way N.E.
    [Show full text]
  • Gopher Rockfish
    Summary of Data Sources for Stock Assessments for the Species in the Nearshore Fisheries Management Plan (NFMP) Teresa Ish1,2 Meisha Key3 Yasmin Lucero1 1 Center for Stock Assessment Research (CSTAR), Department of Applied Mathematics and Statistics, UC Santa Cruz, Santa Cruz, CA 95064 2 Also with Sustainable Fishery Advocates, P.O. Box 233, Santa Cruz, CA 95061 3 California Department of Fish and Game, 20 Lower Ragsdale Drive, #100 Monterey, CA 93940 February 1, 2005 Table of Contents Scope and structure of report 1 Table 1: Ranking of species by data richness 2 Descriptions of data sources 3 Table 2: Summary of data by data source 10 Individual species reports and data summary tables Black rockfish (Sebastes melanops) 12 Black and yellow rockfish (Sebastes chrysomelas) 16 Blue rockfish (Sebastes mystinus) 20 Brown rockfish (Sebastes auriculatus) 24 Cabezon (Scorpaenichthys marmoratus) 28 Calico rockfish (Sebastes dalli) 32 China rockfish (Sebastes nebulosus) 35 Copper rockfish (Sebastes caurinus) 39 Gopher rockfish (Sebastes carnatus) 42 Grass rockfish (Sebastes rastrelliger) 46 Kelp greenling (Hexagrammos decagrammus) 50 Kelp rockfish (Sebastes atrovirens) 53 Monkeyface prickleback eel (Cebidichthys violaceus) 57 Olive rockfish (Sebastes serranoides) 60 Quillback rockfish (Sebastes maliger) 63 Rock greenling (Hexagrammos lagocephalus) 66 Scorpionfish (Scorpaena guttata) 68 Sheephead (Semicossyphus pulcher) 71 Treefish (Sebastes serriceps) 74 Scope and structure of report The purpose of this report is to summarize the data sources that are available for the 19 nearshore species identified in the Nearshore Fisheries Management Plan (NFMP), to provide a means for the California Fish and Game to determine which species have enough data to assess and where more data need to be collected.
    [Show full text]
  • 61661147.Pdf
    Resource Inventory of Marine and Estuarine Fishes of the West Coast and Alaska: A Checklist of North Pacific and Arctic Ocean Species from Baja California to the Alaska–Yukon Border OCS Study MMS 2005-030 and USGS/NBII 2005-001 Project Cooperation This research addressed an information need identified Milton S. Love by the USGS Western Fisheries Research Center and the Marine Science Institute University of California, Santa Barbara to the Department University of California of the Interior’s Minerals Management Service, Pacific Santa Barbara, CA 93106 OCS Region, Camarillo, California. The resource inventory [email protected] information was further supported by the USGS’s National www.id.ucsb.edu/lovelab Biological Information Infrastructure as part of its ongoing aquatic GAP project in Puget Sound, Washington. Catherine W. Mecklenburg T. Anthony Mecklenburg Report Availability Pt. Stephens Research Available for viewing and in PDF at: P. O. Box 210307 http://wfrc.usgs.gov Auke Bay, AK 99821 http://far.nbii.gov [email protected] http://www.id.ucsb.edu/lovelab Lyman K. Thorsteinson Printed copies available from: Western Fisheries Research Center Milton Love U. S. Geological Survey Marine Science Institute 6505 NE 65th St. University of California, Santa Barbara Seattle, WA 98115 Santa Barbara, CA 93106 [email protected] (805) 893-2935 June 2005 Lyman Thorsteinson Western Fisheries Research Center Much of the research was performed under a coopera- U. S. Geological Survey tive agreement between the USGS’s Western Fisheries
    [Show full text]
  • Activity Patterns and Feeding Chronology of the Kelp Rockfish, Sebastes Atrovirens, in a Central California Kelp Forest
    ACTIVITY PATTERNS AND FEEDING CHRONOLOGY OF THE KELP ROCKFISH, SEBASTES ATROVIRENS, IN A CENTRAL CALIFORNIA KELP FOREST A Thesis Presented to The Faculty of the Department of Biology San Jose State University In Partial Fulfillment · of the Requirements for the Degree Master of Arts By Gilbert S. Van Dykhuizen May 1983 ABSTRACT Activity patterns, home range behavior, feeding habits, and chronology of adult kelp rockfish,·Sebastes atrovirens, were investigated in a kelp forest in Carmel Bay, California. Kelp rockfish abundance fluctuated with kelp density and canopy cover in this study area. Fish were distributed throughout the water column both day and night in the kelp season and were confined to the bottom in the non-kelp season. Tagged kelp rockfish occupied home ranges throughout the study, although several departed as a result of storms and reduced kelp density. Kelp rockfish fed opportunistically on available and abundant organisms including kelp-associated, open water, and epibenthic prey. Digestive states and rates on fish prey were determined in the laboratory, an~ kelp rockfish fully digested a medium-sized meal of juvenile Sebastes in approximately 33 hours. Initial time of feeding was estimated for field-collected kelp rockfish containing juvenile fishes. From recency of feeding indices, feeding appeared to occur at all times of day with a tendency towards dawn and night feeding. iii ACKNOWLEDGMENTS I would like to thank the members of my committee, Drs. Greg Cailliet, Ralph Larson, and Robert-Lea for their helpful comments, support, and assistance during the course of this work. Dr. Mike Foster also provided valuable suggestions along the way.
    [Show full text]
  • Establishment of Commercial Black/Blue Rockfish Daily Trip Limits
    September 30, 2008 ODFW INDUSTRY NOTICE TO: COMMERCIAL GROUNDFISH FISHERS AND PROCESSORS Establishment of Commercial Black/Blue Rockfish Daily Trip Limits The Oregon Department of Fish and Wildlife currently manages the commercial nearshore fishery for a 12-month season. Harvest projections at the present rate of fishing indicate that the black rockfish and blue rockfish combined landing cap may be met before the end of December. The following change to the commercial black rockfish/blue rockfish combined limit for October, November, and December is effective 12:01 a.m. Thursday, October 2, 2008 to allow fishing opportunity to continue for nearshore species (cabezon, greenling, and other nearshore rockfish). Limits are subject to change inseason BLACK/BLUE ROCKFISH PERMITTED VESSELS WITH OR WITHOUT A NEARSHORE ENDORSEMENT and NON- PERMITTED VESSELS: ¾ No vessel may land more than 15 pounds per day of black rockfish/blue rockfish beginning October 2, 2008. No vessel may exceed the period 5 (September and October) cumulative trip limit of 1,000 pounds. No vessel may exceed a cumulative total of 200 pounds per month for the months of November and December. NEARSHORE ENDORSED VESSELS: No change to the following limits ¾ No vessel may land more than 700 pounds of other nearshore rockfish in periods 5 and 6. ¾ No vessel may land more than 450 pounds of greenling in periods 5 and 6. ¾ No vessel may land more than 2,500 pounds of cabezon in periods 5 and 6. Contact: Carla Sowell, 541-867-0300 ext-222 or Gway Kirchner ext-267 http://www.dfw.state.or.us/MRP/ 1 September 30, 2008 Commercial Trip Limits for Vessels WITHOUT a Black Rockfish and Blue Rockfish Permit • No vessel may land more than the daily, weekly, or period limits as established in OAR 635- 004-0033 (detailed on the previous page.
    [Show full text]