Marine Region 2016 Year in Review

Total Page:16

File Type:pdf, Size:1020Kb

Marine Region 2016 Year in Review MARINE REGION 2016 YEAR IN REVIEW Cavanaugh Gulch, near Elk in northern California photo by K. Joe A Message From Craig Shuman, Marine Region Manager Most of us have experienced déjà vu – that strong feeling on the beach by the hundreds of thousands and reports of familiarity with an experience or event, as though we of sea turtles more at home off the Galapagos. State have already experienced it in the past. For Marine Region record-sized tuna continued to be logged into the books staff, many of the events in 2016 had that same strong by anglers and spear fishermen, besting old records by as feeling of familiarity. much as 80 pounds or more. Elevated levels of domoic acid As the offshore environment continued to impact California’s continued to experience rapid wildlife and fisheries, keeping Marine Region Mission: change, Marine Region staff were commercial crabbers tied to the To protect, maintain, enhance, there monitoring, meeting with the dock for part of the season and public, and developing strategies recreational razor clammers off the and restore California’s to help better understand how beaches of northern California for marine ecosystems for their the changes would affect the much of the year. The commercial ecological values and their marine environment and our sardine fishery remained closed fisheries. Statewide, our biologists for its second year and the use and enjoyment by the and analysts were busy studying, combined effects of drought and public through good science monitoring, and assessing fish and poor ocean conditions impacted and effective communication. shellfish populations, including recreational and commercial abalone, halibut (California and salmon catches. Pacific), Dungeness crab, bluefin The “perfect storm” of large-scale tuna, market squid, rockfish, ecological impacts continued to inflict ecosystem-wide salmon, sardine, sea cucumbers, shrimp, surfperch, and changes throughout much of California’s northern waters. urchins, among many others. Staff also studied, monitored With an exploding population of purple sea urchins and assessed environmental changes off the California devouring every frond of kelp they could find, abalone coast; for example, joining an effort to develop better tools and other creatures that depend on kelp for food began for measuring the buffering action of eelgrass against to starve. This prompted the Fish and Game Commission ocean acidification in Humboldt Bay. to enact emergency regulations to curtail the recreational In 2016, Marine Region staff continued to develop take of red abalone for the 2017 season and had dramatic new reporting tools for recreational and commercial impacts on the commercial red urchin fishery. catch data that will help to inform fishery management The warm waters that were causing problems in the north decisions. Staff continued work on the electronic kept the run of great fishing going off Southern California, log system, developing, implementing and testing replete with odd events such as red crabs washing up continued on pg. 2 1 Table of Contents State-Managed Marine Species Programs........................................................ 3 State/Federal Marine Species Program............................................................ 11 Resource Assessment Program........................................................................... 15 Habitat Conservation Program........................................................................... 17 Administration.......................................................................................................... 21 2016 Region-Wide Accomplishments, By The Numbers... Processed over 19,800 Completed 1 new fishery management commercial passenger fishing plan for California spiny lobster vessel e-log submissions on the new electronic log system Flew over 3,200 miles during aerial sardine and anchovy surveys Contacted over 98,000 saltwater anglers. Observed and identified vero 186,000 Reviewed over 600 environmental fish and invertebrates, and measured documents, and attended over 60 over 99,000 fish and invertebrates pre-project review meetings Entered over 55,000 commercial Registered 4 new state record landing receipts tuna diving and angling records Surveyed almost 60 miles of rocky seafloor habitat with a Sampled 26,200 salmon in the sport remotely operated vehicle and commercial ocean salmon fisheries and collected 6,000 tags to determine Reviewed and approved 140 the age and origin of hatchery fish aquaculture registration permits Message from Craig Shuman, cont. new improvements. Through a partnership with the The underpinning of a fantastic administrative team Sportfishing Association of California, close to 20,000 made all this, and more, possible. Without their expertise, Commercial Passenger Fishing Vessel (CPFV) e-logs were commitment and dedication, we would not have been submitted through the system, representing almost 60 able to achieve our region-wide objectives. percent of all CPFV logs submitted in 2016. Developing It is often said that change is inevitable. While we are improved tools for assessing fisheries is an important hopeful that positive change will come sooner rather part of the Marine Life Management Act Master Plan than later, Marine Region staff will remain vigilant, amendment process, which also continued to make continuing to protect and maintain California’s marine 2 progress this year. ecosystems and fisheries during these challenging times. State-Managed Marine Species Programs These programs are responsible for fisheries managed by the State alone. Abalone – Dramatic changes in ocean conditions over Cherr, G.N., 2016. Implementing a restoration program the last few years resulted in very poor habitat conditions for the endangered white abalone (Haliotis sorenseni) in and population parameters in the northern red abalone California. J. Shell. Res. 35:611-618). fishery in 2016. At the end of the year, the Marine Region requested emergency changes to the regulations for 2017 As part of this work, staff have been modeling restoration through an emergency action, to address the situation. options to help determine how many years until the wild population becomes extinct (trajectory of the Progress on drafting the Red Abalone Fishery wild population), as well as what might be the most Management Plan continued along with numerous useful strategies for restoration including numbers, public listening sessions. sizes and locations for restoration actions (see Catton, C.A., Stierhoff, K., Rogers-Bennett, L., 2016. Modeling Staff ompletedc a number of papers that were published restoration of endangered California white abalone (Haliotis in the scientific literature. One area of work involved sorenseni) populations. J. Shell. Res. 35:593-600). Visit the tracking reproduction of red abalone in the northern CDFW website at wildlife.ca.gov/Conservation/Marine/ California recreational fishery. The team developed and Invertebrates/Abalone for more information about implemented the capacity to capture larval and newly abalone. settled red abalone (see Rogers-Bennett, L., Dondanville, R.F., Catton, C.A., Juhasz, C.I., Horii, T., Hamaguchi, M., 2016. Aquaculture (Marine) – Staff processed, reviewed, Detecting larval, newly settled and juvenile red abalone and approved 50 Live Importation Permits, reviewed (Haliotis rufescens) recruitment in northern California. J. and approved 140 Aquaculture Registrations, prepared Shell. Res. 35:601-610). three Wild Broodstock Collecting Permits, four Letters of Authorization, and reviewed and approved 10 Restricted The team worked with a non-governmental organization Species Permits. Staff participated in several meetings to estimate the economic value of the recreational with Fish and Game Commission staff and Department red abalone fishery in northern California. The work staff ot discuss the process of lease assignments and confirmed just how economically important this large transfers, best management practices, and rulemaking fishery is to the region, with estimates of the value of options for state water bottom aquaculture leases. the fishery to the fishermen of up to $44 million dollars Staff onductedc various state water bottom lease per year (see Reid, J., Rogers-Bennett, L., Pace, M., Eyler, R., inspections in Tomales Bay which informed preparation Vasquez, F., Bruner, A., Catton, C.A., Kashiwada, J.V. and I.K. of subsequent recommendations to the Fish and Game Taniguchi, 2016. The economic value of the recreational red abalone fishery in northern California. California Fish and Game 102:121-133). White abalone is an endangered species. Staff are developing a broad partnership called the White Abalone Restoration Consortium that has as its goal the restoration of white abalone populations through a captive breeding and stocking program. Staff are working closely with university, federal, and aquarium scientists to grow and then eventually stock abalone in the wild to restore the population (see Rogers-Bennett, L., Aquilino, K.M., Catton, C.A., Kawana, S.K., Walker, B.J., Ashlock, L.W., Marshman, B.C., Moore, J.D., Taniguchi, I.K., Gilardi, K.V., Red abalone surrounded by purple sea urchins in an urchin barren 3 CDFW photo by A. Maguire been implicated in the decline of native clam and crab species in areas of central California. Monitoring suggests the abundance of green crab in the bay has remained relatively low; however, this species continues to be a cause for concern. Staff ontinuedc long term monitoring of eelgrass
Recommended publications
  • Lobsters-Identification, World Distribution, and U.S. Trade
    Lobsters-Identification, World Distribution, and U.S. Trade AUSTIN B. WILLIAMS Introduction tons to pounds to conform with US. tinents and islands, shoal platforms, and fishery statistics). This total includes certain seamounts (Fig. 1 and 2). More­ Lobsters are valued throughout the clawed lobsters, spiny and flat lobsters, over, the world distribution of these world as prime seafood items wherever and squat lobsters or langostinos (Tables animals can also be divided rougWy into they are caught, sold, or consumed. 1 and 2). temperate, subtropical, and tropical Basically, three kinds are marketed for Fisheries for these animals are de­ temperature zones. From such partition­ food, the clawed lobsters (superfamily cidedly concentrated in certain areas of ing, the following facts regarding lob­ Nephropoidea), the squat lobsters the world because of species distribu­ ster fisheries emerge. (family Galatheidae), and the spiny or tion, and this can be recognized by Clawed lobster fisheries (superfamily nonclawed lobsters (superfamily noting regional and species catches. The Nephropoidea) are concentrated in the Palinuroidea) . Food and Agriculture Organization of temperate North Atlantic region, al­ The US. market in clawed lobsters is the United Nations (FAO) has divided though there is minor fishing for them dominated by whole living American the world into 27 major fishing areas for in cooler waters at the edge of the con­ lobsters, Homarus americanus, caught the purpose of reporting fishery statis­ tinental platform in the Gul f of Mexico, off the northeastern United States and tics. Nineteen of these are marine fish­ Caribbean Sea (Roe, 1966), western southeastern Canada, but certain ing areas, but lobster distribution is South Atlantic along the coast of Brazil, smaller species of clawed lobsters from restricted to only 14 of them, i.e.
    [Show full text]
  • Sculpt a Sea Urchin
    Copyright © 2017 Dick Blick Art Materials All rights reserved 800-447-8192 DickBlick.com Sculpt a Sea Urchin Upcycled containers are used as molds in this easy and visually striking sea urchin sculpture (art + science) The shells of sea urchins are beautiful natural sculptures with incredible detail and symmetry. In times past, sea urchins were also called sea hedgehogs due to the spines of the animal that protrude through the outer shell or “test” of the creature. Sea urchins are globular animals that belong to the class Echinoidea, just like their cousins, the sand dollar. Around 950 species of echinoids live in the world’s oceans. The shell of the animal is often colored olive green, brown, purple, blue, and red, and usually measures 1–4” in diameter. Like other echinoderms, when sea urchins are babies, they illustrate bilateral symmetry, which means they have two identical halves. As they grow, however, they develop five-fold symmetry. The outer shells are mostly spherical, with five equally sized divisions that radiate out from the center. Some sea urchins, including sand dollars, can be more oval in shape, and usually, the upper portion of the shell is domed while the underside is flat. The “test” of the urchin protects its internal organs. It’s very rigid and made of fused plates of Materials calcium carbonate covered (required) Princeton Hake Brush, by thin dermis and epidermis Blick Pottery Plaster No.1, Size 1” (05415-1001); — just like our skin! Each of 8 lb (33536-1008); share share five across class to one bag across class apply watercolors the five areas consists of rows Plastic of plates that are covered in Blick Liquid Watercolors, Squeeze Bottles, round “tubercles.” These round 118 ml (00369-); share at Optional Materials 4 oz (04916-1003) areas are where the spine of least three colors across Utrecht Plastic Buckets class Paint Pipettes, package the animal is attached while it's with Lids, 128 oz (03332- of 25 (06972-1025) 1009) alive.
    [Show full text]
  • Climate Change and Fisheries: Policy, Trade and Sustainable Nal of Fisheries Management 22:852-862
    Climate Change and Alaska Fisheries TERRY JOHNSON Alaska Sea Grant University of Alaska Fairbanks 2016 ISBN 978-1-56612-187-3 http://doi.org/10.4027/ccaf.2016 MAB-67 $10.00 Credits Alaska Sea Grant is supported by the US Department of Commerce, NOAA National Sea Grant, grant NA14OAR4170079 (A/152-32) and by the University of Alaska Fairbanks with state funds. Sea Grant is a partnership with public and private sectors combining research, education, and extension. This national network of universities meets changing environmental and Alaska Sea Grant economic needs of people in coastal, ocean, and Great Lakes University of Alaska Fairbanks regions. Fairbanks, Alaska 99775-5040 Funding for this project was provided by the Alaska Center for Climate Assessment and Policy (ACCAP). Cover photo by (888) 789-0090 Deborah Mercy. alaskaseagrant.org TABLE OF CONTENTS Abstract .................................................................................................... 2 Take-home messages ...................................................................... 2 Introduction............................................................................................. 3 1. Ocean temperature and circulation ................................................ 4 2. Ocean acidification ............................................................................ 9 3. Invasive species, harmful algal blooms, and disease-causing pathogens .................................................... 12 4. Fisheries effects—groundfish and crab ......................................
    [Show full text]
  • Krill Oil and Astaxanthin
    Krill Oil and Astaxanthin Krill are small reddish-color crustaceans, similar to shrimp, that abound in cold Arctic waters. They survive in such cold, frigid temperatures because of their natural anti- freeze, the polyunsaturated fatty acids EPA and DHA. EPA and DHA are bound to molecules called phospholipids (especially phosphatidyl choline) that act to help transport nutrients into cells and change the structure of animal cell membranes. Studies show that these combined fatty acids have better absorption into the cell membranes throughout the body, especially the brain, as compared to other types of fish oils. Although it has less EPA/DHA content than most fish oils, krill oil seems to be almost twice as absorbable. Unlike fish oil, krill oil also contains a very potent antioxidant, astaxanthin, which helps prevent krill oil from oxidizing (turning rancid). Astaxanthin is a red pigment found in different types of algae and phytoplankton. It is astaxanthin that gives salmon and trout their reddish color. It is considered to be one of the most potent natural antioxidants, almost 50 times stronger than beta-carotenes found in fruits and vegetables and 65 times better as an anti-oxidant than vitamin C. Krill oil is composed of 40% phospholipids, 30% EPA and DHA, astaxanthin, vitamin A, vitamin C, various other fatty acids, and flavanoids (anti-oxidant compounds) Human studies indicate krill oil is powerful at decreasing inflammation throughout the body, especially in the brain. It reduces C-reactive protein, a marker for heart disease. Tests indicate it has a powerful anti-inflammatory remedy for rheumatoid as well as osteoarthritis.
    [Show full text]
  • Table 21FBPUB - Poundage and Value of Landings by Port, FORT BRAGG Area During 2018 Date: 07/19/2019
    California Department of Fish and Wildlife Page: 1 Table 21FBPUB - Poundage And Value Of Landings By Port, FORT BRAGG Area During 2018 Date: 07/19/2019 Species Pounds Value FORT BRAGG Crab, Dungeness 1,455,938 $4,742,921 Sablefish 845,431 $1,292,065 Salmon, Chinook 121,637 $840,292 Sea urchin, red 199,598 $220,701 Sole, petrale 172,841 $209,635 Hagfish, unspecified 229,441 $193,768 Sole, Dover 370,978 $174,598 Rockfish, chilipepper 322,517 $149,747 Lingcod 103,654 $135,968 Thornyhead, shortspine 71,931 $125,290 Rockfish, bocaccio 210,762 $106,549 Tuna, albacore 22,837 $46,554 Rockfish, blackgill 68,405 $34,831 Thornyhead, longspine 124,275 $33,204 Rockfish, copper 6,935 $27,169 Rockfish, bank 44,549 $22,275 Cabezon 3,625 $16,629 Rockfish, group slope 27,550 $16,335 Rockfish, quillback 2,339 $13,460 Rockfish, darkblotched 26,721 $13,416 Prawn, spot 639 $10,856 Rockfish, canary 7,450 $10,498 Rockfish, vermilion 4,303 $9,291 Hagfish, Pacific 28,628 $8,588 Rockfish, yellowtail 4,325 $8,209 Rockfish, gopher 946 $7,052 Rockfish, China 930 $6,921 Sole, rex 20,676 $6,585 Rockfish, black-and-yellow 852 $6,515 Skate, longnose 26,252 $6,278 California Department of Fish and Wildlife Page: 2 Table 21FBPUB - Poundage And Value Of Landings By Port, FORT BRAGG Area During 2018 Date: 07/19/2019 Species Pounds Value FORT BRAGG Sea urchin, purple 2,550 $3,431 Sea cucumber, giant red 2,848 $2,848 Sole, English 10,470 $2,577 Greenling, kelp 365 $2,090 Halibut, California 264 $1,794 Crab, rock unspecified 299 $1,536 Rockfish, group shelf 1,148 $1,368 Rockfish,
    [Show full text]
  • A Time Series of California Spiny Lobster (Panulirus Interruptus) Phyllosoma from 1951 to 2008 Links Abundance to Warm Oceanogr
    KOSLOW ET AL.: LOBSTER PHYLLOSOMA ABUNDANCE LINKED TO WARM CONDITIONS CalCOFI Rep., Vol. 53, 2012 A TIME SERIES OF CALIFORNIA SPINY LOBSTER (PANULIRUS INTERRUPTUS) PHYLLOSOMA FROM 1951 TO 2008 LINKS ABUNDANCE TO WARM OCEANOGRAPHIC CONDITIONS IN SOUTHERN CALIFORNIA J. ANTHONY KOSLOW LauRA ROGERS-BENNETT DOUGLAS J. NEILSON Scripps Institution of Oceanography California Department of Fish and Game California Department of Fish and Game University of California, S.D. Bodega Marine Laboratory 4949 Viewridge Avenue La Jolla, CA 92093-0218 UC Davis, 2099 Westside Rd. San Diego, CA 92123 ph: (858) 534-7284 Bodega Bay, CA 94923-0247 [email protected] ABSTRACT The California spiny lobster (Panulirus interruptus) population is the basis for a valuable commercial and recreational fishery off southern California, yet little is known about its population dynamics. Studies based on CalCOFI sampling in the 1950s indicated that the abun- dance of phyllosoma larvae may be sensitive to ocean- ographic conditions such as El Niño events. To further study the potential influence of environmental variabil- ity and the fishery on lobster productivity, we developed a 60-year time series of the abundance of lobster phyl- losoma from the historical CalCOFI sample collection. Phyllosoma were removed from the midsummer cruises when the early-stage larvae are most abundant in the plankton nearshore. We found that the abundance of the early-stage phyllosoma displayed considerable inter- annual variability but was significantly positively corre- Figure 1. Commercial (solid circles), recreational (open triangles), and total lated with El Niño events, mean sea-surface temperature, landings (solid line) of spiny lobster off southern California.
    [Show full text]
  • The Health Benefits of Krill Oil Versus Fish Oil
    The Health Benefits of Krill Oil versus Fish Oil Antarctic krill Euphausia superba Antarctic krill is a rich source of long chain Ȧ-3 PUFAs: EPA & DHA Human trials show EPA and DHA significantly lower i~70% incorporated into phospholipids and ~30% is free fatty acids triglycerides, VLDL, LDL, and iDHA content in krill oil is similar to fish oil, EPA content is much higher blood pressure, and raise HDL. in krill oil than fatty fish Fish oil, a prominent source of Krill Oil contains antioxidants Vitamin A, Vitamin E, and Astaxanthin EPA and DHA, maintains a long founded history in Clinical Trials epidemiologic and intervention i1 g and 1.5 g krill oil significantly more effective than 3 g fish oil in studies which support it can reducing glucose and LDL help reduce atherosclerotic plaque growth, cancer, i2 g and 3 g krill oil showed significantly greater reduction in glucose, arrhythmia, inflammation, LDL, and triglycerides compared to 3 g fish oil arthritis, kidney disease, and iAfter an additional 120 days at 0.5 g/d krill oil (after 90 days at 1±1.5 g/d skin disorders, as well as krill oil) cholesterol, LDL, HDL, triglycerides, and glucose became increase endothelial function, significantly different from baseline anti-thrombosis, insulin sensitivity, neurological i.ULOORLO¶VKLJKSURSRUWLRQRI(3$ '+$ERXQGWRSKRVSKROLSLGVDQGDV function, retinal and brain free fatty acids demonstrates greater bioavailability and absorption in development, and the intestine compared to fish oil whose EPA & DHA is bound to immunological function. The triglycerides level of causation is so i Mice fed 10% krill oil had higher liver expression of endogenous profound even the American antioxidant enzymes than corn fed mice.
    [Show full text]
  • Lobster Review
    Seafood Watch Seafood Report American lobster Homarus americanus (Image © Monterey Bay Aquarium) Northeast Region Final Report February 2, 2006 Matthew Elliott Independent Consultant Monterey Bay Aquarium American Lobster About Seafood Watch® and the Seafood Reports Monterey Bay Aquarium’s Seafood Watch® program evaluates the ecological sustainability of wild-caught and farmed seafood commonly found in the United States marketplace. Seafood Watch® defines sustainable seafood as originating from sources, whether wild-caught or farmed, which can maintain or increase production in the long-term without jeopardizing the structure or function of affected ecosystems. Seafood Watch® makes its science-based recommendations available to the public in the form of regional pocket guides that can be downloaded from the Internet (seafoodwatch.org) or obtained from the Seafood Watch® program by emailing [email protected]. The program’s goals are to raise awareness of important ocean conservation issues and empower seafood consumers and businesses to make choices for healthy oceans. Each sustainability recommendation on the regional pocket guides is supported by a Seafood Report. Each report synthesizes and analyzes the most current ecological, fisheries and ecosystem science on a species, then evaluates this information against the program’s conservation ethic to arrive at a recommendation of “Best Choices,” “Good Alternatives,” or “Avoid.” The detailed evaluation methodology is available upon request. In producing the Seafood Reports, Seafood Watch® seeks out research published in academic, peer-reviewed journals whenever possible. Other sources of information include government technical publications, fishery management plans and supporting documents, and other scientific reviews of ecological sustainability. Seafood Watch® Fisheries Research Analysts also communicate regularly with ecologists, fisheries and aquaculture scientists, and members of industry and conservation organizations when evaluating fisheries and aquaculture practices.
    [Show full text]
  • ​Biomimicry Learning Activity
    Biomimicry Learning Activity ​ Grade Level: 5th grade and up. (Activity should be facilitated by an adult.) ​ ​ NGSS Cross-Cutting Concepts: Structure and Function; Patterns. ​ NGSS Practices: Designing Solutions, Communicating Information ​ Goal: Participants become comfortable with the concept of biomimicry by better understanding ​ the relationship between structure and function, both in nature and in the designed world. Resources: - Poster or large sheets of paper. - Markers/Pens/Pencils - Nature’s Secrets Cards (provided with the activity). - Whale and Dolphin Conservation Biomimicry video Vocabulary: Adaptation: a displayed behavior or structure of an organism that helps it become better suited ​ to survive. Biomimicry: A designed product or system that was inspired by the structure and function of a ​ particular organism’s adaptation. Function: the purpose or effect of something (in this case the structure). How or what it is used ​ for. Structure: the physical make-up of something. The way it looks, feels, or is arranged; its ​ observable features. Biomimicry Activity Section One: Watch WDC Biomimicry Video The participants and facilitator should watch the video for an introduction to the concept and key ​ ​ terms. Feel free to stop the video when necessary if participants have questions or need clarification. After the video and before moving to the next section, make sure participants feel more comfortable with the concept of Biomimicry. The facilitator can ask one or all of the following questions: 1. What did you feel was the most interesting example of biomimicry in the video? 2. In your own words, can you explain why companies are looking at humpback whales’ pectoral fins in the field of biomimicry? 3.
    [Show full text]
  • Heart Health Through Whole Foods
    Heart Health Through Whole Foods Certain whole foods in a diet can ultimately provide heart-healthy benefits. The right foods consumed in the right amounts can help lower cholesterol and/or triglycerides. They may also help to reduce risk for heart disease. Even though the benefits of whole foods may be known, too often individuals turn to over-the-counter supplements instead. It is important to discuss all supplements prior to ingestion with your physician. Individuals may not realize that taking some supplements with certain medications may be harmful or that taking too much of a good thing can be bad. The purpose of this session is to educate how to obtain certain nutrients through whole foods rather then through supplements. It must be noted that some individuals may still need supplements in addition to diet. Once again this should be guided by a physician. Supplement Health Benefits Caution Dietary Alternative Omega-3 Fatty Acids: Fish oil is used for There are some safety concerns Consuming fish oil from dietary Fish Oils reduction in cholesterol about using high doses of fish oil. sources such as fatty fish (e.g., and triglycerides. It is Doses greater than 3 grams per tuna, salmon), two servings Fish oils contain used for hyperlipidemia, day can inhibit blood coagulation per week, is associated with Eicosapentaenoic hypertriglyceridemia, and potentially increase the risk a reduced risk of developing Acid (EPA) and coronary heart disease of bleeding. Doses greater than 3 cardiovascular disease Docosahexaenoic and hypertension. grams per day might also suppress (primary prevention). Acid (DHA) immune response.
    [Show full text]
  • Effect of Protein Hydrolysate from Antarctic Krill on the State of Water and Denatur- Ation of Lizard Fish Myofibrils During Frozen Storage
    Food Sci. Technol. Res., 8 (3), 200–206, 2002 Effect of Protein Hydrolysate from Antarctic Krill on the State of Water and Denatur- ation of Lizard Fish Myofibrils during Frozen Storage Nong ZHANG1, Yasumitsu YAMASHITA1 and Yukinori NOZAKI2* 1Graduate School of Marine Science and Engineering, and 2Faculty of Fisheries, Nagasaki University, Bunkyo, Nagasaki 852-8521, Japan Received May 24, 2001; Accepted April 17, 2002 Protein hydrolysates were prepared from Antarctic krill and two types of shrimp by enzymatic treatment using protease. Hydrolysates prepared from the krill were added to lizard fish myofibrils, and changes in the amount of unfrozen water in myofibrils during freezing were analyzed by differential scanning calorimetry. Ca-ATPase activity of myofibrils was measured concurrently and the results were compared with those using hydrolysates from shrimp. The amount of unfrozen water increased after addition of the hydrolysates and decreased moderately during frozen storage. When hydrolysates were not added to myofibrils, the amount of water rapidly decreased during frozen stor- age. The decrease in ATPase activity during frozen storage followed that of unfrozen water, indicating a close correla- tion between ATPase activity and the amount of unfrozen water. These results suggest that the denaturation of myofibrils may be suppressed by the addition of hydrolysates, since the hydrolysates appeared to increase the amount of unfrozen water. Keywords: krill, myofibrils, ATPase, hydrolysate, freeze-denaturation, unfrozen water, frozen storage
    [Show full text]
  • 2014 Field Trials | Downeast Institute
    Menu Home News About Us o Mission & Vision o History of DEI o Board of Directors (2014) o Staff o DEI's Senior Scientist . Lobster Research . Mussel Research . Sea Urchin Research o DEI's Future o Marine Education Center o Pier Project o Shellfish Field Days at DEI Soft Shell Clams o Ordering Soft-Shell Clam Juveniles o Soft-Shell Clam Production at DEI o Illustrated Clam Culture Manual o Clam Predators o Soft-Shell Clam Research . Stockton Springs . Hampton Harbor . Edmunds . Freeport Research o Published Research . Soft-shell clams . Hard clams . European lobsters . American lobsters . Ocean quahogs . Green macroalgae . Green sea urchin . Eelgrass . Other o Scallop Restoration o Scallops NOAA-NMFS o Hard Shell Clams o Lobster Research o Arctic Surfclams - NSF o Blue mussels - NSF Education o Marine Education Summer Camps for Youth o NSF-supported Education Effort . Bay Ridge Elementary . Beals Elementary . Jonesport Elementary . Washington Academy . The Lobster Project o Summer Positions for Students (2014) o K-12 Teacher Resources . The Rocky Shore . Lesson Plans for Teachers . Ascophyllum Seaweed Classroom Experiment . Rearing Microalgae in the Classroom Help Support DEI Directions Contact 2014 FIELD TRIALS With lessons learned about routine monitoring and maintenance of field plots, and the necessity to hire skilled labor, we devised a six-pronged project to investigate green crabs and their effects on soft-shell clams. The brochure that is linked to this page was developed by Sara Randall, local coordinator for the Freeport Project, and explains each of the six independent field projects. In 2014, funding for field work has come from three sources: $200,000 from the Maine Economic Improvement Fund (Small Campus Initiative) - 2 yrs, $348,767 from the National Marine Fisheries Service (Saltonstall-Kennedy fund) - 2 yrs, and $28,000 from Sea Pact - 1 yr.
    [Show full text]