Tidepool Docent Manual
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Star Asterias Rubens
bioRxiv preprint doi: https://doi.org/10.1101/2021.01.04.425292; this version posted January 4, 2021. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under aCC-BY-NC-ND 4.0 International license. How to build a sea star V9 The development and neuronal complexity of bipinnaria larvae of the sea star Asterias rubens Hugh F. Carter*, †, Jeffrey R. Thompson*, ‡, Maurice R. Elphick§, Paola Oliveri*, ‡, 1 The first two authors contributed equally to this work *Department of Genetics, Evolution and Environment, University College London, Darwin Building, Gower Street, London WC1E 6BT, United Kingdom †Department of Life Sciences, Natural History Museum, Cromwell Road, South Kensington, London SW7 5BD, United Kingdom ‡UCL Centre for Life’s Origins and Evolution (CLOE), University College London, Darwin Building, Gower Street, London WC1E 6BT, United Kingdom §School of Biological & Chemical Sciences, Queen Mary University of London, London, E1 4NS, United Kingdom 1Corresponding Author: [email protected], Office: (+44) 020-767 93719, Fax: (+44) 020 7679 7193 Keywords: indirect development, neuropeptides, muscle, echinoderms, neurogenesis 1 bioRxiv preprint doi: https://doi.org/10.1101/2021.01.04.425292; this version posted January 4, 2021. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under aCC-BY-NC-ND 4.0 International license. How to build a sea star V9 Abstract Free-swimming planktonic larvae are a key stage in the development of many marine phyla, and studies of these organisms have contributed to our understanding of major genetic and evolutionary processes. -
Coastal Flood Defences - Groynes
Coastal Flood Defences - Groynes Coastal flood defences are key to protecting our coasts against flooding, which is when normally dry, low lying flat land is inundated by sea water. Hard engineering methods are forms of coastal flood defences which mitigate the risk of flooding and coastal erosion and the consequential effects. Hard Engineering Hard engineering methods are often used as a temporary measure to protect against coastal flooding as they are costly and only last for a relatively short amount of time before they require maintenance. However, they are very effective at protecting the coastline in the short-term as they are immediately effective as opposed to some longer term soft engineering methods. But they are often intrusive and can cause issues elsewhere at other areas along the coastline. Groynes are low lying wood or concrete structures which are situated out to sea from the shore. They are designed to trap sediment, dissipate wave energy and restrict the transfer of sediment away from the beach through long shore drift. Longshore drift is caused when prevailing winds blow waves across the shore at an angle which carries sediment along the beach.Groynes prevent this process and therefore, slow the process of erosion at the shore. They can also be permeable or impermeable, permeable groynes allow some sediment to pass through and some longshore drift to take place. However, impermeable groynes are solid and prevent the transfer of any sediment. Advantages and Disadvantages +Groynes are easy to construct. +They have long term durability and are low maintenance. +They reduce the need for the beach to be maintained through beach nourishment and the recycling of sand. -
Vortex Arrays and Ciliary Tangles Underlie the Feeding–Swimming Tradeoff in Starfish Larvae
Vortex arrays and ciliary tangles underlie the feeding{swimming tradeoff in starfish larvae William Gilpin1, Vivek N. Prakash2, Manu Prakash2∗ 1Department of Applied Physics, 2Department of Bioengineering, Stanford University, Stanford, CA ∗To whom correspondence should be addressed; E-mail: [email protected] March 12, 2018 arXiv:1611.01173v2 [physics.flu-dyn] 13 Feb 2017 1 Abstract Many marine invertebrates have larval stages covered in linear arrays of beating cilia, which propel the animal while simultaneously entraining planktonic prey.1 These bands are strongly conserved across taxa spanning four major superphyla,2,3 and they are responsible for the unusual morphologies of many invertebrate larvae.4,5 However, few studies have investigated their underlying hydrodynamics.6,7 Here, we study the ciliary bands of starfish larvae, and discover a beautiful pattern of slowly-evolving vor- tices that surrounds the swimming animals. Closer inspection of the bands reveals unusual ciliary \tangles" analogous to topological defects that break-up and re-form as the animal adjusts its swimming stroke. Quantitative experiments and modeling demonstrate that these vortices create a physical tradeoff between feeding and swim- ming in heterogenous environments, which manifests as distinct flow patterns or \eigen- strokes" representing each behavior|potentially implicating neuronal control of cilia. This quantitative interplay between larval form and hydrodynamic function may gen- eralize to other invertebrates with ciliary bands, and illustrates the potential -
Systematic Comparison of Sea Urchin and Sea Star Developmental Gene Regulatory Networks Explains How Novelty Is Incorporated in Early Development
ARTICLE https://doi.org/10.1038/s41467-020-20023-4 OPEN Systematic comparison of sea urchin and sea star developmental gene regulatory networks explains how novelty is incorporated in early development Gregory A. Cary 1,3,5, Brenna S. McCauley1,4,5, Olga Zueva1, Joseph Pattinato1, William Longabaugh2 & ✉ Veronica F. Hinman 1 1234567890():,; The extensive array of morphological diversity among animal taxa represents the product of millions of years of evolution. Morphology is the output of development, therefore phenotypic evolution arises from changes to the topology of the gene regulatory networks (GRNs) that control the highly coordinated process of embryogenesis. A particular challenge in under- standing the origins of animal diversity lies in determining how GRNs incorporate novelty while preserving the overall stability of the network, and hence, embryonic viability. Here we assemble a comprehensive GRN for endomesoderm specification in the sea star from zygote through gastrulation that corresponds to the GRN for sea urchin development of equivalent territories and stages. Comparison of the GRNs identifies how novelty is incorporated in early development. We show how the GRN is resilient to the introduction of a transcription factor, pmar1, the inclusion of which leads to a switch between two stable modes of Delta-Notch signaling. Signaling pathways can function in multiple modes and we propose that GRN changes that lead to switches between modes may be a common evolutionary mechanism for changes in embryogenesis. Our data additionally proposes a model in which evolutionarily conserved network motifs, or kernels, may function throughout development to stabilize these signaling transitions. 1 Department of Biological Sciences, Carnegie Mellon University, Pittsburgh, PA 15213, USA. -
1 the Influence of Groyne Fields and Other Hard Defences on the Shoreline Configuration
1 The Influence of Groyne Fields and Other Hard Defences on the Shoreline Configuration 2 of Soft Cliff Coastlines 3 4 Sally Brown1*, Max Barton1, Robert J Nicholls1 5 6 1. Faculty of Engineering and the Environment, University of Southampton, 7 University Road, Highfield, Southampton, UK. S017 1BJ. 8 9 * Sally Brown ([email protected], Telephone: +44(0)2380 594796). 10 11 Abstract: Building defences, such as groynes, on eroding soft cliff coastlines alters the 12 sediment budget, changing the shoreline configuration adjacent to defences. On the 13 down-drift side, the coastline is set-back. This is often believed to be caused by increased 14 erosion via the ‘terminal groyne effect’, resulting in rapid land loss. This paper examines 15 whether the terminal groyne effect always occurs down-drift post defence construction 16 (i.e. whether or not the retreat rate increases down-drift) through case study analysis. 17 18 Nine cases were analysed at Holderness and Christchurch Bay, England. Seven out of 19 nine sites experienced an increase in down-drift retreat rates. For the two remaining sites, 20 retreat rates remained constant after construction, probably as a sediment deficit already 21 existed prior to construction or as sediment movement was restricted further down-drift. 22 For these two sites, a set-back still evolved, leading to the erroneous perception that a 23 terminal groyne effect had developed. Additionally, seven of the nine sites developed a 24 set back up-drift of the initial groyne, leading to the defended sections of coast acting as 1 25 a hard headland, inhabiting long-shore drift. -
The Malacological Society of London
ACKNOWLEDGMENTS This meeting was made possible due to generous contributions from the following individuals and organizations: Unitas Malacologica The program committee: The American Malacological Society Lynn Bonomo, Samantha Donohoo, The Western Society of Malacologists Kelly Larkin, Emily Otstott, Lisa Paggeot David and Dixie Lindberg California Academy of Sciences Andrew Jepsen, Nick Colin The Company of Biologists. Robert Sussman, Allan Tina The American Genetics Association. Meg Burke, Katherine Piatek The Malacological Society of London The organizing committee: Pat Krug, David Lindberg, Julia Sigwart and Ellen Strong THE MALACOLOGICAL SOCIETY OF LONDON 1 SCHEDULE SUNDAY 11 AUGUST, 2019 (Asilomar Conference Center, Pacific Grove, CA) 2:00-6:00 pm Registration - Merrill Hall 10:30 am-12:00 pm Unitas Malacologica Council Meeting - Merrill Hall 1:30-3:30 pm Western Society of Malacologists Council Meeting Merrill Hall 3:30-5:30 American Malacological Society Council Meeting Merrill Hall MONDAY 12 AUGUST, 2019 (Asilomar Conference Center, Pacific Grove, CA) 7:30-8:30 am Breakfast - Crocker Dining Hall 8:30-11:30 Registration - Merrill Hall 8:30 am Welcome and Opening Session –Terry Gosliner - Merrill Hall Plenary Session: The Future of Molluscan Research - Merrill Hall 9:00 am - Genomics and the Future of Tropical Marine Ecosystems - Mónica Medina, Pennsylvania State University 9:45 am - Our New Understanding of Dead-shell Assemblages: A Powerful Tool for Deciphering Human Impacts - Sue Kidwell, University of Chicago 2 10:30-10:45 -
Dam Effects on Low-Tide Channel Pools and Fish Use of Estuarine Habitat
Beaver in Tidal Marshes: Dam Effects on Low-Tide Channel Pools and Fish Use of Estuarine Habitat W. Gregory Hood Wetlands Official Scholarly Journal of the Society of Wetland Scientists ISSN 0277-5212 Wetlands DOI 10.1007/s13157-012-0294-8 1 23 Your article is protected by copyright and all rights are held exclusively by Society of Wetland Scientists. This e-offprint is for personal use only and shall not be self- archived in electronic repositories. If you wish to self-archive your work, please use the accepted author’s version for posting to your own website or your institution’s repository. You may further deposit the accepted author’s version on a funder’s repository at a funder’s request, provided it is not made publicly available until 12 months after publication. 1 23 Author's personal copy Wetlands DOI 10.1007/s13157-012-0294-8 ARTICLE Beaver in Tidal Marshes: Dam Effects on Low-Tide Channel Pools and Fish Use of Estuarine Habitat W. Gregory Hood Received: 31 August 2011 /Accepted: 16 February 2012 # Society of Wetland Scientists 2012 Abstract Beaver (Castor spp.) are considered a riverine or can have multi-decadal or longer effects on river channel form, lacustrine animal, but surveys of tidal channels in the Skagit riverine and floodplain wetlands, riparian vegetation, nutrient Delta (Washington, USA) found beaver dams and lodges in the spiraling, benthic community structure, and the abundance and tidal shrub zone at densities equal or greater than in non-tidal productivity of fish and wildlife (Jenkins and Busher 1979; rivers. Dams were typically flooded by a meter or more during Naiman et al. -
Diarrhetic Shellfish Toxins and Other Lipophilic Toxins of Human Health Concern in Washington State
Mar. Drugs 2013, 11, 1-x manuscripts; doi:10.3390/md110x000x OPEN ACCESS Marine Drugs ISSN 1660-3397 www.mdpi.com/journal/marinedrugs Article Diarrhetic Shellfish Toxins and Other Lipophilic Toxins of Human Health Concern in Washington State Vera L. Trainer 1,*, Leslie Moore 1, Brian D. Bill 1, Nicolaus G. Adams 1, Neil Harrington 2, Jerry Borchert 3, Denis A.M. da Silva 1 and Bich-Thuy L. Eberhart 1 1 Marine Biotoxins Program, Environmental Conservation Division, Northwest Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration, 2725 Montlake Blvd. E, Seattle, WA 98112, USA; E-Mails: [email protected] (L.M.); [email protected] (B.D.B.); [email protected] (N.G.A.); [email protected] (D.A.M.D.S.); [email protected] (B.-T.L.E.) 2 Jamestown S’Klallam Tribe, 1033 Old Blyn Highway, Sequim, WA 98392, USA; E-Mail: [email protected] 3 Office of Shellfish and Water Protection, Washington State Department of Health, 111 Israel Rd SE, Tumwater, WA 98504, USA; E-Mail: [email protected] * Author to whom correspondence should be addressed; E-Mail: [email protected]; Tel.: +1-206-860-6788; Fax: +1-206-860-3335. Received: 13 March 2013; in revised form: 7 April 2013 / Accepted: 23 April 2013 / Published: Abstract: The illness of three people in 2011 after their ingestion of mussels collected from Sequim Bay State Park, Washington State, USA, demonstrated the need to monitor diarrhetic shellfish toxins (DSTs) in Washington State for the protection of human health. -
NJ Art Reef Publisher
Participating Organizations Alliance for a Living Ocean American Littoral Society Clean Ocean Action www.CleanOceanAction.org Arthur Kill Coalition Asbury Park Fishing Club Bayberry Garden Club Bayshore Saltwater Flyrodders Main Office Institute of Coastal Education Belford Seafood Co-op Belmar Fishing Club 18 Hartshorne Drive 3419 Pacific Avenue Beneath The Sea P.O. Box 505, Sandy Hook P.O. Box 1098 Bergen Save the Watershed Action Network Wildwood, NJ 08260-7098 Berkeley Shores Homeowners Civic Association Highlands, NJ 07732-0505 Cape May Environmental Commission Voice: 732-872-0111 Voice: 609-729-9262 Central Jersey Anglers Ocean Advocacy Fax: 732-872-8041 Fax: 609-729-1091 Citizens Conservation Council of Ocean County Since 1984 Clean Air Campaign [email protected] [email protected] Coalition Against Toxics Coalition for Peace & Justice Coastal Jersey Parrot Head Club Coast Alliance Communication Workers of America, Local 1034 Concerned Businesses of COA Concerned Citizens of Bensonhurst Concerned Citizens of COA Concerned Citizens of Montauk Dosil’s Sea Roamers Eastern Monmouth Chamber of Commerce Environmental Response Network Bill Figley, Reef Coordinator Explorers Dive Club Fisheries Defense Fund NJ Division of Fish and Wildlife Fishermen’s Dock Cooperative Fisher’s Island Conservancy P.O. Box 418 Friends of Island Beach State Park Friends of Liberty State Park Friends of Long Island Sound Port Republic, NJ 08241 Friends of the Boardwalk Garden Club of Englewood Garden Club of Fair Haven December 6, 2004 Garden Club of Long Beach Island Garden Club of Morristown Garden Club of Navesink Garden Club of New Jersey RE: New Jersey Draft Artificial Reef Plan Garden Club of New Vernon Garden Club of Oceanport Garden Club of Princeton Garden Club of Ridgewood VIA FASCIMILE Garden Club of Rumson Garden Club of Short Hills Garden Club of Shrewsbury Garden Club of Spring Lake Dear Mr. -
Can't Catch My Breath! a Study of Metabolism in Fish. Subjects
W&M ScholarWorks Reports 2017 Can’t Catch My Breath! A Study of Metabolism in Fish. Subjects: Environmental Science, Marine/Ocean Science, Life Science/ Biology Grades: 6-8 Gail Schweiterman Follow this and additional works at: https://scholarworks.wm.edu/reports Part of the Marine Biology Commons, and the Science and Mathematics Education Commons Recommended Citation Schweiterman, G. (2017) Can’t Catch My Breath! A Study of Metabolism in Fish. Subjects: Environmental Science, Marine/Ocean Science, Life Science/Biology Grades: 6-8. VA SEA 2017 Lesson Plans. Virginia Institute of Marine Science, College of William and Mary. https://doi.org/10.21220/V5414G This Report is brought to you for free and open access by W&M ScholarWorks. It has been accepted for inclusion in Reports by an authorized administrator of W&M ScholarWorks. For more information, please contact [email protected]. Can’t catch my breath! A study of metabolism in fish Gail Schwieterman Virginia Institute of Marine Science Grade Level High School Subject area Biology, Environmental, or Marine Science This work is sponsored by the National Estuarine Research Reserve System Science Collaborative, which supports collaborative research that addresses coastal management problems important to the reserves. The Science Collaborative is funded by the National Oceanic and Atmospheric Administration and managed by the University of Michigan Water Center. 1. Activity Title: Can’t Catch My Breath! A study of metabolism in fish 2. Focus: Metabolism (Ecological drivers); The Scientific Method (Formulating Hypothesis) 3. Grade Levels/ Subject: HS Biology, HS Marine Biology 4. VA Science Standard(s) addressed: BIO.1. The student will demonstrate an understanding of scientific reasoning, logic, and the nature of science by planning and conducting investigations (including most Essential Understandings and nearly all Essential Knowledge and Skills) BIO.4a. -
HABITAT TYPE and ASSOCIATED BIOLOGICAL ASSEMBLAGES – Shellfish Beds Sculpins, Rockfish, Perch and Herring
HABITAT TYPE AND ASSOCIATED BIOLOGICAL ASSEMBLAGES – Shellfish Beds sculpins, rockfish, perch and herring. Hard substrates are arenaria. Sutton (1978) also delineated beds of the rough an important feeding habitat for harbor seals, including piddock (Zirfaea pilsbryi), a native clam that bores into from the Golden Gate east to Treasure Island, northwest soft rock or clays, as a potential species for sport harvest, to Tiburon Peninsula, and southward to Yerba Buena and suggested that there may be significant subtidal beds Island (Goals Project 2000, Green et al. 2006). Also, of the native bentnose clam (Macoma nasuta), which was many harbor seal haul-out sites are located in close commonly harvested by Native Americans. Some studies proximity to subtidal hard substrate including Point refer in passing to beds of the exotic freshwater Asiatic Bonita, Castro Rocks, Yerba Buena Island, and Angel clam (Corbicula fluminea; harvested for food or bait), Island (Goals Project 2000). Sea lions also feed in deep, native California mussel (Mytilus californianus), bay marine waters of San Francisco Bay; however, they feed mussel (consisting of the native M. trossulus, the exotic M. mostly on seasonally abundant herring associated with galloprovincialis, and their hybrids), exotic ribbed hard structures and eel grass beds in the Central Bay, and horsemussel (Geukensia demissa), native ghost shrimp on spawning salmonids that are migrating up the Bay (Neotrypaea californica), and the blue mud shrimp across multiple habitats to freshwater tributaries. Pacific (Upogebia pugettensis). Jones & Stokes (1977) and Sutton herring is a major prey item for many marine mammal (1978) implied that the ribbed horsemussel might be a species that are drawn to the Bay, including harbor sport-harvested species in the San Francisco Bay. -
Fish Bulletin 161. California Marine Fish Landings for 1972 and Designated Common Names of Certain Marine Organisms of California
UC San Diego Fish Bulletin Title Fish Bulletin 161. California Marine Fish Landings For 1972 and Designated Common Names of Certain Marine Organisms of California Permalink https://escholarship.org/uc/item/93g734v0 Authors Pinkas, Leo Gates, Doyle E Frey, Herbert W Publication Date 1974 eScholarship.org Powered by the California Digital Library University of California STATE OF CALIFORNIA THE RESOURCES AGENCY OF CALIFORNIA DEPARTMENT OF FISH AND GAME FISH BULLETIN 161 California Marine Fish Landings For 1972 and Designated Common Names of Certain Marine Organisms of California By Leo Pinkas Marine Resources Region and By Doyle E. Gates and Herbert W. Frey > Marine Resources Region 1974 1 Figure 1. Geographical areas used to summarize California Fisheries statistics. 2 3 1. CALIFORNIA MARINE FISH LANDINGS FOR 1972 LEO PINKAS Marine Resources Region 1.1. INTRODUCTION The protection, propagation, and wise utilization of California's living marine resources (established as common property by statute, Section 1600, Fish and Game Code) is dependent upon the welding of biological, environment- al, economic, and sociological factors. Fundamental to each of these factors, as well as the entire management pro- cess, are harvest records. The California Department of Fish and Game began gathering commercial fisheries land- ing data in 1916. Commercial fish catches were first published in 1929 for the years 1926 and 1927. This report, the 32nd in the landing series, is for the calendar year 1972. It summarizes commercial fishing activities in marine as well as fresh waters and includes the catches of the sportfishing partyboat fleet. Preliminary landing data are published annually in the circular series which also enumerates certain fishery products produced from the catch.