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  • 1
    Online Resource
    Online Resource
    New York : Crown Publ.
    Description / Table of Contents: Rez.: This illustrated book is available online. It is a basic introduction to coral reefs and would be useful for use with school groups
    Type of Medium: Online Resource
    Language: English
    Note: ACHTUNG: nur über das WWW zu lesen!
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  • 2
    Online Resource
    Online Resource
    Washington, D. C. :Island Press,
    Keywords: Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (415 pages)
    Edition: 1st ed.
    ISBN: 9781597267755
    DDC: 304.2
    Language: English
    Note: Intro -- About Island Press -- Title Page -- Copyright page -- CONTENTS -- CONTRIBUTORS -- PREFACE -- PERSPECTIVES ON NATURE'S SERVICES -- INTRODUCTION:WHAT ARE ECOSYSTEM SERVICES? -- ECOSYSTEM SERVICES:A FRAGMENTARY HISTORY -- Part I: Economic Issues of Valuation -- VALUING ECOSYSTEM SERVICES: PHILOSOPHICAL BASES AND EMPIRICAL METHODS -- VALUING ECOSYSTEM SERVICES WITH EFFICIENCY, FAIRNESS, AND SUSTAINABILITY AS GOALS -- Part II: Overarching Services -- THE INTERACTION OF CLIMATE AND LIFE -- BIODIVERSITY AND ECOSYSTEM FUNCTIONING -- ECOSYSTEM SERVICES SUPPLIED BY SOIL -- SERVICES PROVIDED BY POLLINATORS -- NATURAL PEST CONTROL SERVICES AND AGRICULTURE -- Part III: Services Supplied by Major Biomes -- MARINE ECOSYSTEM SERVICES -- FRESHWATER ECOSYSTEM SERVICES -- THE WORLD'S FORESTS AND THEIR ECOSYSTEM SERVICES -- ECOSYSTEM SERVICES IN GRASSLANDS -- Part IV: Case Studies -- BIODIVERSITY'S GENETIC LIBRARY -- IMPACTS OF MARINE RESOURCE EXTRACTION ON ECOSYSTEM SERVICES AND SUSTAINABILITY -- ECOSYSTEM SERVICES IN SUBSISTENCE ECONOMIES AND CONSERVATION OF BIODIVERSITY -- Ecosystem Services in a Modern Economy: Gunnison County, Colorado -- WATER QUALITY IMPROVEMENT BY WETLANDS -- SERVICES SUPPLIED BY SOUTH AFRICAN FYNBOS ECOSYSTEMS -- Part V: Conclusions -- VALUING AND SAFEGUARDING EARTH'S LIFE-SUPPORT SYSTEMS -- INDEX -- Island Press Board of Directors 1997.
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  • 3
    Online Resource
    Online Resource
    Cham :Springer International Publishing AG,
    Keywords: System theory-Congresses. ; Computational complexity-Congresses. ; Artificial intelligence-Congresses. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (446 pages)
    Edition: 1st ed.
    ISBN: 9783030673185
    Series Statement: Springer Proceedings in Complexity Series
    DDC: 003
    Language: English
    Note: Intro -- Preface -- Contents -- Contributors -- Multi-agent Simulations of Intra-colony Violence in Ants -- 1 Introduction -- 2 Background: Ant Biology -- 2.1 Individual Life Histories of Atta cephalotes -- 2.2 Distinguishing ``Friend'' From ``Foe'' in Ant Colonies -- 2.3 Intra-Colony Violence -- 3 Theoretical Framework -- 3.1 High-Leverage Points in Complex Systems -- 3.2 Inclusive Fitness and Natural Selection -- 4 A Necessary Caution Against Over-Generalization -- 5 The Basic Model -- 6 The Computational Experiments: Three Scenarios -- 7 Results -- 7.1 Scenario 1: Intra-Colony Violence Without Super-Organism Reproduction -- 7.2 Scenario 2: Intra-Colony Violence with Super-Organism Reproduction -- 7.3 Scenario 3: A Deeper Investigation of the Role of Resource Availability -- 8 Summary and Discussion -- 8.1 Summary of Results -- 8.2 Concerns and Implications for Modeling Human Societies -- References -- Renormalization Group Approach to Cellular Automata-Based Multi-scale Modeling of Traffic Flow -- 1 Introduction -- 2 Literature Review -- 2.1 Traffic Flow Modeling at Distinct Spatial Scales -- 2.2 Modeling Traffic Flow at the `Appropriate' Spatial Scale -- 3 Statistical Mechanics-Inspired Model of Traffic Flow Dynamics -- 3.1 Modified Ising Model for Traffic Flow -- 4 Traffic Flow Modeling Across Multiple Spatial Scales -- 4.1 Renormalization Group Approach Applied to CA-Based Traffic Flow Model -- 4.2 Generalization of Interaction Energy Calculation to Arbitrary Spatial Scales -- 4.3 Numerical Examples -- 5 Conclusion and Results -- References -- The Generation of Meaning and Preservation of Identity in Complex Adaptive Systems the LIPHE4 Criteria -- 1 Introduction -- 2 Conceptual Blocks -- 2.1 Holons and Holarchies -- 2.2 The State-Pressure Relation in Dissipative Systems -- 2.3 Aristotelean Causality and Rosen. , 2.4 Propensities, Probabilities, and the Entanglement Between Downward and Upward Causation -- 3 Meaning and Identity in Complex Adaptive Systems: The LIPHE4 Criteria -- 3.1 Meaning and Biosemiotics -- 3.2 Learning Instances Producing Holarchic Essences: Expected, Established, and Experienced (LIPHE4) -- 4 Conclusions -- References -- On the Formal Incompleteness of Reductive Logic -- 1 Introduction -- 2 Defining a Context for the Question -- 3 Mathematization Defines a Reductive Formal System Model -- 3.1 Theoretical Reduction -- 3.2 Explanatory Reduction -- 3.3 Further Subdivision of Theoretical and Explanatory Reduction -- 3.4 Mathematization and Proof of Formal Reductive Incompleteness -- 4 Further Mathematization -- 5 The RFSM in the Matrix of Multiple Scientific Languages -- 6 Arithmetization of Reductive Logic -- 7 The Self-reference Lemma and Reductive Logic -- 8 The Provability Predicate and Reductive Logic -- 9 Negating the Provability Predicate in Reductive Logic -- 10 Strong and Weak Representation in FR -- 11 Proposition XI: Consistency and the Second Theorem -- 11.1 Proposition XI (Reductive Science Version) -- 12 Implications for the Reductive Scientific Paradigm -- References -- Kinds of Unfinished Description with Implication for Natural Science -- 1 Introduction -- 1.1 Four Descriptive Deficiencies -- 2 The Modern Reductive Scientific Narrative -- 3 A Thought Experiment -- 3.1 Micro-scale or Multi-scale? the Multi-scale Hypothesis -- 3.2 Bottom-Up or Multi-directional? the Multi-directional Hypothesis -- 3.3 Complete or Incomplete? Reductive Formal Incompleteness -- 3.4 The Synthesis of Symmetry and Self-similarity -- 3.5 Can the Scientific Method Adapt? Meta-Reductive Methodology -- 4 Conclusion -- References -- Developing an Ontology for Emergence Using Formal Concept Analysis -- 1 Introduction -- 2 Emergence Ontology. , 2.1 Features of Emergence -- 2.2 Context Formation -- 2.3 Ontology Development -- 3 Evaluation of Ontology -- 4 Initial Results and Conclusion -- References -- Pandemic Preparation, Consciousness and Complex Adaptive Systems Through the Lens of a Meta-reductive Scientific Paradigm -- 1 Introduction -- 2 Covid-19 in Reductive and Meta-reductive Frameworks -- 2.1 The Reductive Framework -- 2.2 A Meta-reductive Framework -- 2.3 Reductive Incompleteness in Relation to Covid-19 -- 3 Meta-reductive Life Cones and Self-similarity -- 3.1 Self-similarity and Meta-reductive Models -- 3.2 A General Pattern of Evolutionary Self-similarity -- 3.3 The Implication of Generalized Self-similarity -- 4 Adapting Kinds of Reductive 'Unfinished Description' -- 4.1 Micro-scale Evolution Transformed into Multi-scale Co-evolution -- 4.2 Unidirectional Evolution Transformed into Multi-directional Co-evolution -- 4.3 Reductive Logic Transformed into Iterated Meta-reductive Logic -- 4.4 Symmetry and Self-similarity Deployed in the Analysis of Causal Relations -- 5 Meta-reductive Thought During the Covid-19 Pandemic -- References -- Cardiorespiratory Activity in the Auto-Organization of the Hierarchical Order in Crayfish -- 1 Introduction -- 2 Methods -- 3 Results -- 4 Conclusion -- References -- Cyborgization of Modern Social-Economic Systems -- 1 Part 1 -- 1.1 Societal Metabolism -- 1.2 Explanatory Resources (Causality) -- 1.3 Relational Characterization of a Societal Node -- 1.4 Society as a Relational Network -- 1.5 Society as an (M, R)-System -- 1.6 Externalization and Cyborgization -- 2 Part 2 -- 2.1 Macroscope -- 2.2 Mesoscope -- 2.3 Microscope -- 3 Conclusion -- References -- Trustable Risk Scoring for Non-bank Gateways in Blockchain and DLT Financial Networks -- 1 Introduction -- 2 Method -- 2.1 Coverage -- 2.2 Generative Network Models -- 2.3 Ranking Scores. , 3 Analysis -- 4 Conclusion -- References -- When Econometrics Met Information Theory: A Real-Time Approach to Track Yen Exchange Rate -- 1 Introduction -- 1.1 Definitions -- 1.2 Revisions -- 1.3 Vintage, Vintage Point and Reference Point -- 1.4 Real-Time Database -- 1.5 Alternative Data -- 2 Methodology -- 2.1 Input Variables -- 2.2 Econometrics: Dynamic Factor Modeling -- 2.3 Information Theory: Transfer Entropy -- 2.4 System Architecture -- 3 Evaluation -- 3.1 Experimental Setup -- 3.2 Experimental Data -- 3.3 Experimental Results -- 4 Conclusion -- References -- An Economic Model Based on the System of National Accounts and Stock Flow Consistent Theory -- 1 Introduction -- 2 Network Model of the Economy -- 3 Asset Pricing Model -- 4 Simulation -- 4.1 Parameters and Initial Values -- 4.2 Results -- 4.3 Effect of Reducing the Time Step -- 4.4 Effect of Reduced Government Aid -- 4.5 Effect of Income Distribution -- 5 Discussion -- References -- Does Exist Gap-Filling Phenomenon in Stock Markets? -- 1 Introduction -- 2 Background and Data Source -- 2.1 Gap and Gap-Filling Phenomena -- 2.2 Data Description -- 3 Random Shuffling -- 4 Results of Empirical Statistics on Original Data -- 4.1 The Statistics of Original Data -- 4.2 Statistical on Shuffling Data -- 5 Result of Statistics on No-trend Data -- 5.1 Detrending Processing -- 5.2 Statistical Result on No Trend Data and Shuffling Data -- 6 Conclusions and Discussions -- References -- Empirical Scaling and Dynamical Regimes for GDP: Challenges and Opportunities -- 1 Introduction -- 2 The Data -- 3 Rank Tends to Persist -- 4 Causes and Questions -- 5 Discussion -- References -- Process Mining Organization Email Data and National Security Implications -- 1 Introduction -- 1.1 Methodology -- 2 Results -- 3 Discussion -- 4 Implications and Future Work -- 5 Conclusion -- References. , Efficient Self-organized Feature Maps Through Developmental Learning -- 1 Introduction -- 2 Background -- 3 Motivation and General Framework -- 4 The DevSOM Model -- 5 Simulations and Results -- 5.1 Experimental Protocols -- 5.2 Performance Metrics -- 5.3 Results -- 6 Conclusions -- References -- Modeling and Simulation Analysis of a Complex Adaptive Systems of Systems Approach to Naval Tactical Warfare -- 1 Introduction -- 2 The Highly Complex Tactical Environment -- 3 Complex Adaptive Systems of Systems Approach to Naval Tactical Warfare -- 3.1 Naval Tactical CASoS Adaptive Architecture -- 3.2 Naval Tactical CASoS System of Intelligent Constituent Systems -- 3.3 Naval Tactical CASoS Knowledge Discovery and Predictive Analytics -- 4 Modeling and Simulation Approach -- 4.1 Baseline (Non-CASoS Approach) -- 4.2 CASoS Alternative -- 5 Modeling and Simulation Analysis Results -- 5.1 M& -- S Analysis #1-Comparison of the Current (Baseline) Approach with a CASoS Approach -- 5.2 M& -- S Analysis #2-Effects of Increasing the Complexity of the Scenario Environment -- 6 Conclusion -- References -- Deterministic Chaos Constraints for Control of Massive Swarms -- 1 Problem: Scaling in Spatially Distributed Large Dynamic Networks -- 1.1 Large Ad-Hoc Network Routing Issues and a Possible Path to a Solution -- 1.2 From Chaos to Iterative Order: Applying Fractals and the Iterated Function System (IFS) -- 1.3 A Proposed Solution: Apply NPPR to Solve the Ad-Hoc Routing Problem -- 2 Conclusion and Future Work -- References -- Complex Systems and Classical Military Theory -- 1 First Section -- 1.1 The Ancient Military Classics -- 1.2 Theories of War During the Enlightenment -- 1.3 A Modern Diagnosis of the Old Debates -- References -- On the Middleware Design, Cyber-Security, Self-monitoring and Self-healing for the Next-Generation IoT. , 1 Introduction: Future of Internet-of-Things.
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  • 4
    Publication Date: 2021-07-04
    Description: The aquarium trade and other wildlife consumers are at a crossroads forced by threats from global climate change andother anthropogenic stressors that have weakened coastal ecosystems. While the wildlife trade may put additional stress on coral reefs, it brings income into impoverished parts of the world and may stimulate interest in marine conservation. To better understand the influence of the trade, we must first be able to quantify coral reef fauna moving through it. Herein, we discuss the lack of a data system for monitoring the wildlife aquarium trade and analyze problems that arise when trying to monitor the trade using a system not specifically designed for this purpose. To do this, we examined an entire year of import records of marine tropical fish entering the United States in detail, and discuss the relationship between tradevolume, biodiversity and introduction of non-native marine fishes. Our analyses showed that biodiversity levels are higher than previous estimates. Additionally, more than half of government importation forms have numerical or other reporting discrepancies resulting in the overestimation of trade volumes by 27%. While some commonly imported species have been introduced into the coastal waters of the USA (as expected), we also found that some uncommon species in the trade have also been introduced. This is the first study of aquarium trade imports to compare commercial invoices to government forms and provides a means to, routinely and in real time, examine the biodiversity of the trade in coral reef wildlife species.
    Keywords: Aquaculture ; Biology ; Ecology ; Fisheries
    Repository Name: AquaDocs
    Type: article , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 1-9
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  • 5
    Publication Date: 2021-07-01
    Description: Background:The rising temperature of the world’s oceans has become a major threat to coral reefs globally as the severityand frequency of mass coral bleaching and mortality events increase. In 2005, high ocean temperatures in the tropicalAtlantic and Caribbean resulted in the most severe bleaching event ever recorded in the basin.Methodology/Principal Findings:Satellite-based tools provided warnings for coral reef managers and scientists, guiding both the timing and location of researchers’ field observations as anomalously warm conditions developed and spread across the greater Caribbean region from June to October 2005. Field surveys of bleaching and mortality exceeded prior efforts in detail and extent, and provided a new standard for documenting the effects of bleaching and for testing nowcast and forecast products. Collaborators from 22 countries undertook the most comprehensive documentation of basin-scale bleaching to date and found that over 80% of corals bleached and over 40% died at many sites. The most severe bleaching coincided with waters nearest a western Atlantic warm pool that was centered off the northern end of the Lesser Antilles.Conclusions/Significance:Thermal stress during the 2005 event exceeded any observed from the Caribbean in the prior 20 years, and regionally-averaged temperatures were the warmest in over 150 years. Comparison of satellite data against field surveys demonstrated a significant predictive relationship between accumulated heat stress (measured using NOAA CoralReef Watch’s Degree Heating Weeks) and bleaching intensity. This severe, widespread bleaching and mortality willundoubtedly have long-term consequences for reef ecosystems and suggests a troubled future for tropical marine ecosystems under a warming climate
    Description: NOAA Coral Reef Conservation Program
    Description: Article Nr: e13969
    Keywords: Biology ; Ecology ; Environment ; Fisheries ; Caribbean Sea ; coral reefs ; bleaching ; climate change ; temperature effects ; CCMI
    Repository Name: AquaDocs
    Type: article , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 1-9
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  • 6
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    NOAA/National Ocean Service/ Marine Sanctuaries Division | Silver Spring, MD
    In:  http://aquaticcommons.org/id/eprint/2324 | 403 | 2011-09-29 19:15:42 | 2324 | United States National Ocean Service
    Publication Date: 2021-07-13
    Description: We tagged a total of 14 yellowtail snapper (Ocyurus chrysurus Bloch 1790) and black grouper (Mycteroperca bonaci Poey 1860) inside the Conch Reef Research Only Area (a no-take marine reserve) in the northern Florida Keys National Marine Sanctuary in November 2001. Both species are heavily exploited in the region. Our objective was to characterize site fidelity and movement behavior along the reef tract to the north and south of the release point. Fishes were collected by baited hook and line from the surface, surgically-tagged with coded-acoustic transmitters, and returned to the reef by snorkelers. Tracking of fish movement behavior was conducted by five acoustic receivers deployed on the seafloor from Davis Reef in the south to Pickles Reef in the north. Fishes were tracked for up to eight months. Results indicated that themajority of signal detections for individual fish from both species were recorded at the two Conch Reef receivers. Limited movement from Conch Reef to Davis Reef was recorded, but no signal detections were recorded at the two sites to the north of Conch Reef. These results suggestthat both species show site fidelity to Conch Reef. Future studies will seek to characterize this site fidelity with increased temporal and spatial resolution at Conch Reef. (PDF contains 25 pages.)
    Keywords: Ecology ; Management ; Fisheries ; Yellowtail snapper ; Ocyurus chrysurus ; Black grouper ; Mycteroperca bonaci ; Acoustic telemetry ; Marine reserves ; Site fidelity ; Movement patterns ; Florida Keys National Marine Sanctuary
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
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  • 7
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    NOAA/National Ocean Service/National Marine Sanctuaries Program | Silver Spring, MD
    In:  http://aquaticcommons.org/id/eprint/2318 | 403 | 2011-09-29 19:17:22 | 2318 | United States National Ocean Service
    Publication Date: 2021-07-13
    Description: The largely sedentary behavior of many fishes on coral reefs is well established. Information on the movement behavior of individual fish, over fine temporal and spatialscales, however, continues to be limited. It is precisely this type of information that is critical for evaluating the success of marine reserves designed for the conservation and/or management of vagile fishes. In this pilot study we surgically-tagged eight hogfish(Lachnolaimus maximus Walbaum 1792) with coded-acoustic transmitters inside the Conch Reef Research Only Area (a no-take marine reserve) in the northern Florida KeysNational Marine Sanctuary. Our primary objective was to characterize the movement of L. maximus across Conch Reef in the vicinity of the reserve. All fish were captured,surgically-tagged and released in situ during a saturation mission to the Aquarius Undersea Laboratory, which is located in the center of the reserve. Movement of taggedL. maximus was recorded for up to 95 days by three acoustic receivers deployed on the seafloor. Results showed clear diel patterns in L. maximus activity and regular movementamong the receivers was recorded for seven of the eight tagged fish. Fidelity of tagged fish to the area of release was high when calculated at the scale of days, while within-day fidelity was comparatively low when calculated at the scale of hours. While the number of fish departures from the array also varied, the majority of departures for seven of the eight fish did not exceed 1-hr (with the exception of one 47-day departure), suggesting that when departures occurred, the fish did not travel far. Future efforts will significantly expand the number of receivers at Conch Reef such that fish movement behavior relative to the reserve boundaries can be quantified with increased temporal and spatial resolution. (PDF contains 22 pages.)
    Keywords: Management ; Ecology ; Fisheries ; Environment ; Hogfish ; Lachnolaimus maximus ; Acoustic telemetry ; Fish movement patterns ; Florida Keys National Marine Sanctuary
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
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  • 8
    Publication Date: 2022-05-26
    Description: © The Author(s), 2020. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Staudinger, M. D., Goyert, H., Suca, J. J., Coleman, K., Welch, L., Llopiz, J. K., Wiley, D., Altman, I., Applegate, A., Auster, P., Baumann, H., Beaty, J., Boelke, D., Kaufman, L., Loring, P., Moxley, J., Paton, S., Powers, K., Richardson, D., Robbins, J., Runge, J., Smith, B., Spiegel, C., & Steinmetz, H. The role of sand lances (Ammodytes sp.) in the Northwest Atlantic ecosystem: a synthesis of current knowledge with implications for conservation and management. Fish and Fisheries, 00, (2020): 1-34, doi:10.1111/faf.12445.
    Description: The American sand lance (Ammodytes americanus, Ammodytidae) and the Northern sand lance (A. dubius, Ammodytidae) are small forage fishes that play an important functional role in the Northwest Atlantic Ocean (NWA). The NWA is a highly dynamic ecosystem currently facing increased risks from climate change, fishing and energy development. We need a better understanding of the biology, population dynamics and ecosystem role of Ammodytes to inform relevant management, climate adaptation and conservation efforts. To meet this need, we synthesized available data on the (a) life history, behaviour and distribution; (b) trophic ecology; (c) threats and vulnerabilities; and (d) ecosystem services role of Ammodytes in the NWA. Overall, 72 regional predators including 45 species of fishes, two squids, 16 seabirds and nine marine mammals were found to consume Ammodytes. Priority research needs identified during this effort include basic information on the patterns and drivers in abundance and distribution of Ammodytes, improved assessments of reproductive biology schedules and investigations of regional sensitivity and resilience to climate change, fishing and habitat disturbance. Food web studies are also needed to evaluate trophic linkages and to assess the consequences of inconsistent zooplankton prey and predator fields on energy flow within the NWA ecosystem. Synthesis results represent the first comprehensive assessment of Ammodytes in the NWA and are intended to inform new research and support regional ecosystem‐based management approaches.
    Description: This manuscript is the result of follow‐up work stemming from a working group formed at a two‐day multidisciplinary and international workshop held at the Parker River National Wildlife Refuge, Massachusetts in May 2017, which convened 55 experts scientists, natural resource managers and conservation practitioners from 15 state, federal, academic and non‐governmental organizations with interest and expertise in Ammodytes ecology. Support for this effort was provided by USFWS, NOAA Stellwagen Bank National Marine Sanctuary, U.S. Department of the Interior, U.S. Geological Survey, Northeast Climate Adaptation Science Center (Award # G16AC00237), an NSF Graduate Research Fellowship to J.J.S., a CINAR Fellow Award to J.K.L. under Cooperative Agreement NA14OAR4320158, NSF award OCE‐1325451 to J.K.L., NSF award OCE‐1459087 to J.A.R, a Regional Sea Grant award to H.B. (RNE16‐CTHCE‐l), a National Marine Sanctuary Foundation award to P.J.A. (18‐08‐B‐196) and grants from the Mudge Foundation. The contents of this paper are the responsibility of the authors and do not necessarily represent the views of the National Oceanographic and Atmospheric Administration, U.S. Fish and Wildlife Service, New England Fishery Management Council and Mid‐Atlantic Fishery Management Council. This manuscript is submitted for publication with the understanding that the United States Government is authorized to reproduce and distribute reprints for Governmental purposes. Any use of trade, firm or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
    Keywords: Ammodytes ; ecosystem‐based management ; forage fish ; life history ; sand lance ; trophic ecology
    Repository Name: Woods Hole Open Access Server
    Type: Article
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  • 9
    Publication Date: 2022-05-27
    Description: © The Author(s), 2021. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Suca, J. J., Wiley, D. N., Silva, T. L., Robuck, A. R., Richardson, D. E., Glancy, S. G., Clancey, E., Giandonato, T., Solow, A. R., Thompson, M. A., Hong, P., Baumann, H., Kaufman, L., & Llopiz, J. K. Sensitivity of sand lance to shifting prey and hydrography indicates forthcoming change to the northeast US shelf forage fish complex. Ices Journal of Marine Science, 78(3), (2021): 1023–1037, https://doi.org/10.1093/icesjms/fsaa251.
    Description: Northern sand lance (Ammodytes dubius) and Atlantic herring (Clupea harengus) represent the dominant lipid-rich forage fish species throughout the Northeast US shelf and are critical prey for numerous top predators. However, unlike Atlantic herring, there is little research on sand lance or information about drivers of their abundance. We use intra-annual measurements of sand lance diet, growth, and condition to explain annual variability in sand lance abundance on the Northeast US Shelf. Our observations indicate that northern sand lance feed, grow, and accumulate lipids in the late winter through summer, predominantly consuming the copepod Calanus finmarchicus. Sand lance then cease feeding, utilize lipids, and begin gonad development in the fall. We show that the abundance of C. finmarchicus influences sand lance parental condition and recruitment. Atlantic herring can mute this effect through intra-guild predation. Hydrography further impacts sand lance abundance as increases in warm slope water decrease overwinter survival of reproductive adults. The predicted changes to these drivers indicate that sand lance will no longer be able to fill the role of lipid-rich forage during times of low Atlantic herring abundance—changing the Northeast US shelf forage fish complex by the end of the century.
    Description: Research was funded by the Bureau of Ocean Energy Management (IA agreement M17PG0019; DNW, LK, HB, and JKL), including a subaward via the National Marine Sanctuary Foundation (18-11-B-203). Additional support came from the National Oceanic and Atmospheric Administration Woods Hole Sea Grant Program (NA18OAR4170104, Project No. R/O-57; JKL, HB, and DNW) and a National Science Foundation Long-term Ecological Research grant for the Northeast US Shelf Ecosystem (OCE 1655686; JKL). JJS was funded by the National Science Foundation Graduate Research Fellowship programme. ARR was funded by an NOAA Nancy Foster Scholarship.
    Repository Name: Woods Hole Open Access Server
    Type: Article
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  • 10
    Publication Date: 2022-05-26
    Description: © The Author(s), 2021. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Silva, T. L., Wiley, D. N., Thompson, M. A., Hong, P., Kaufman, L., Suca, J. A., Llopiz, J. K., Baumann, H., & Fay, G. High collocation of sand lance and protected top predators: implications for conservation and management. Conservation Science and Practice, (2021): 3:e274, doi: 10.1111/csp2.274.
    Description: Spatial relationships between predators and prey provide critical information for understanding and predicting climate‐induced shifts in ecosystem dynamics and mitigating human impacts. We used Stellwagen Bank National Marine Sanctuary as a case study to investigate spatial overlap among sand lance (Ammodytes dubius), a key forage fish species, and two protected predators: humpback whales (Megaptera novaeangliae) and great shearwaters (Ardenna gravis). We conducted 6 years (2013–2018) of standardized surveys and quantified spatial overlap using the global index of collocation. Results showed strong, consistent collocation among species across seasons and years, suggesting that humpback whales and great shearwater distributions are tightly linked to sand lance. We propose that identifying sand lance habitats may indicate areas where humpbacks and shearwaters aggregate and are particularly vulnerable to human activities. Understanding how sand lance influence predator distributions can inform species protection and sanctuary management under present and future scenarios.
    Description: This work was supported by the Bureau of Ocean Energy Management [IA agreement M17PG0019], NOAA Stellwagen Bank National Marine Sanctuary, U.S. Geological Survey, the Volgenau Foundation, and the Mudge Foundation.
    Keywords: forage fish ; great shearwaters ; Gulf of Maine ; humpback whales ; seabirds ; spatial overlap ; Stellwagen Bank
    Repository Name: Woods Hole Open Access Server
    Type: Article
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