2015 AQ Summit: Research Update by Damian C. Brady

A summary of the role of estuarine science in informing the location and dynamics of growing areas

Marine Stewardship Council Science Series Best practices for managing, measuring and mitigating the benthic impacts of fishing - Part 2

In a previous paper, Review of habitat dependent impacts of mobile and static fishing gears that interact with the sea bed (2014) we offered definitions for benthic habitat, fishing gear and fisheries management and a way of thinking about the challenge of understanding best practices for measuring, monitoring, managing and mitigating benthic impacts of fishing in the context of the MSC’s certification requirements. These informed our review in the previous paper’s classification of habitats and fishing gears and helped us highlight likely variations in benthic impact depending on habitat and gear used (Grieve, Brady & Polet, 2014). In this paper, we provide an overview of the systems used around the world to classify fisheries management systems. Best practices are related to the MSC Habitats performance indicators, as well as the themes for the original project: monitoring, measuring, managing and mitigating. We conclude the report with observations and recommendations that emerged from our review, with particular reference to defining habitat for MSC purposes and the information needs for certification bodies to make better assessments, e.g. understanding seabed characteristics, estimating fishing distribution, using local knowledge particularly when data are deficient, and the challenge of scaling up results of site-specific, intensive studies to the level of a fishery

Dataset for: “Shifts in habitat, habitat use, and demography of American lobsters in coastal Maine over the past quarter century.”

This is the dataset for the manuscript Shifts in habitat, habitat use, and demography of American lobsters in coastal Maine over the past quarter century. Our study revisited 20 long-term monitored sites at 10 m depth along more than 320 km of the Gulf of Maine. Sampling used quadrat sampling via scuba divers. We recorded fundamental changes in lobster habitat use and distribution. The data include count, size, sex, number of claws, and shelter use of lobster in addition to substrate type, percent cover of kelp and other macroalgae. The data are included in six .csv format files: (1) data from 1993-1995, (2) 1996-2000, (3) 2019, (4) 2021, (5) study site locations revisited in 2019 and 2021, and (6) metadata describing the other files. Zipped folder containing datafiles is found in “Additional Files” at DigitalCommons@UMaine

Environmental Monitoring Report for VolturnUS Deployment in Castine, ME

On June 13th, 2013 the University of Maine’s VolturnUS 1:8 floating offshore wind turbine was energized and began delivering electricity through an undersea cable to the Central Maine Power electricity grid. Deployment continued until late November 2014. The following describes the results of extensive environmental monitoring at the Castine site. The primary observations of the site were derived from weekly visual surveys, bat echolocation detectors, underwater acoustic receivers, and web camera surveillance. The latter method consisted of observing the turbine and platform by web camera every 15-30 seconds throughout the deployment

Oyster Aquaculture Site Selection Using Landsat 8-Derived Sea Surface Temperature, Turbidity, and Chlorophyll a

Remote sensing data is useful for selection of aquaculture sites because it can provide water-quality products mapped over large regions at low cost to users. However, the spatial resolution of most ocean color satellites is too coarse to provide usable data within many estuaries. The Landsat 8 satellite, launched February 11, 2013, has both the spatial resolution and the necessary signal to noise ratio to provide temperature, as well as ocean color derived products along complex coastlines. The state of Maine (USA) has an abundance of estuarine indentations (∼3,500 miles of tidal shoreline within 220 miles of coast), and an expanding aquaculture industry, which makes it a prime case- study for using Landsat 8 data to provide products suitable for aquaculture site selection. We collected the Landsat 8 scenes over coastal Maine, flagged clouds, atmospherically corrected the top-of-the-atmosphere radiances, and derived time varying fields (repeat time of Landsat 8 is 16 days) of temperature (100 m resolution), turbidity (30 m resolution), and chlorophyll a (30 m resolution). We validated the remote-sensing-based products at several in situ locations along the Maine coast where monitoring buoys and programs are in place. Initial analysis of the validated fields revealed promising new areas for oyster aquaculture. The approach used is applicable to other coastal regions and the data collected to date show potential for other applications in marine coastal environments, including water quality monitoring and ecosystem management

Model-assisted measurements of suspension-feeding flow velocities

Author Posting. © Company of Biologists, 2017. This article is posted here by permission of Company of Biologists for personal use, not for redistribution. The definitive version was published in Journal of Experimental Biology 220 (2017): 2096-2107, doi:10.1242/jeb.147934.Benthic marine suspension feeders provide an important link between benthic and pelagic ecosystems. The strength of this link is determined by suspension-feeding rates. Many studies have measured suspension-feeding rates using indirect clearance-rate methods, which are based on the depletion of suspended particles. Direct methods that measure the flow of water itself are less common, but they can be more broadly applied because, unlike indirect methods, direct methods are not affected by properties of the cleared particles. We present pumping rates for three species of suspension feeders, the clams Mya arenaria and Mercenaria mercenaria and the tunicate Ciona intestinalis, measured using a direct method based on particle image velocimetry (PIV). Past uses of PIV in suspension-feeding studies have been limited by strong laser reflections that interfere with velocity measurements proximate to the siphon. We used a new approach based on fitting PIV-based velocity profile measurements to theoretical profiles from computational fluid dynamic (CFD) models, which allowed us to calculate inhalant siphon Reynolds numbers (Re). We used these inhalant Re and measurements of siphon diameters to calculate exhalant Re, pumping rates, and mean inlet and outlet velocities. For the three species studied, inhalant Re ranged from 8 to 520, and exhalant Re ranged from 15 to 1073. Volumetric pumping rates ranged from 1.7 to 7.4 l h−1 for M. arenaria, 0.3 to 3.6 l h−1 for M. mercenaria and 0.07 to 0.97 l h−1 for C. intestinalis. We also used CFD models based on measured pumping rates to calculate capture regions, which reveal the spatial extent of pumped water. Combining PIV data with CFD models may be a valuable approach for future suspension-feeding studies.This research is part of a collaborative project (National Science Foundation grant OCE-1260232 to P.A.J., and grant OCE-1260199 to J. Crimaldi, University of Colorado). Funding was also provided by NSF grant OIA-1355457 to Maine EPSCoR at the University of Maine (D.C.B.).2018-05-3

Model-assisted measurements of suspension-feeding flow velocities

Benthic marine suspension feeders provide an important link between benthic and pelagic ecosystems. The strength of this link is determined by suspension-feeding rates. Many studies have measured suspension-feeding rates using indirect clearance-rate methods, which are based on the depletion of suspended particles. Direct methods that measure the flow of water itself are less common, but they can be more broadly applied because, unlike indirect methods, direct methods are not affected by properties of the cleared particles. We present pumping rates for three species of suspension feeders, the clams Mya arenaria and Mercenaria mercenaria and the tunicate Ciona intestinalis, measured using a direct method based on particle image velocimetry (PIV). Past uses of PIV in suspension-feeding studies have been limited by strong laser reflections that interfere with velocity measurements proximate to the siphon. We used a new approach based on fitting PIV-based velocity profile measurements to theoretical profiles from computational fluid dynamic (CFD) models, which allowed us to calculate inhalant siphon Reynolds numbers (Re). We used these inhalant Re and measurements of siphon diameters to calculate exhalant Re, pumping rates, and mean inlet and outlet velocities. For the three species studied, inhalant Re ranged from 8−520, and exhalant Re ranged from 15−1073. Volumetric pumping rates ranged from 1.7−7.4 l h−1 for Mya, 0.3−3.6 l h−1 for Mercenaria, and 0.07−0.97 l h−1 for Ciona. We also used CFD models based on measured pumping rates to calculate capture regions, which reveal the spatial extent of pumped water. Combining PIV data with CFD models may be a valuable approach for future suspension-feeding studies

Pengaruh Koordinasi Mata-Tangan, Daya Ledak Otot Lengan, dan Kemampuan Motorik terhadap Kemampuan Passing Bawah dalam Permainan Bolavoli pada Murid SD Inpres Sepee Kabupaten Barru

ABSTRAK Penelitian ini bertujuan untuk mengetahui: (1) Untuk mengetahui pengaruh koordinasi mata-tangan terhadap kemampuan motorik pada Murid SD Inpres Sepee Kabupaten Barru, (2) Untuk mengetahui pengaruh daya ledak otot lengan terhadap kemampuan motorik pada Murid SD Inpres Sepee Kabupaten Barru, (3) Untuk mengetahui pengaruh koordinasi mata tangan terhadap kemampuan passing bawah dalam permainan bolavoli pada Murid SD Inpres Sepee Kabupaten Barru, (4) Untuk mengetahui pengaruh daya ledak otot lengan terhadap kemampuan passing bawah dalam permainan bolavoli pada Murid SD Inpres Sepee Kabupaten Barru, (5) Untuk mengetahui pengaruh kemampuan motorik terhadap kemampuan passing bawah dalam permainan bolavoli pada Murid SD Inpres Sepee Kabupaten Barru, (6) Untuk mengetahui pengaruh koordinasi mata tanga terhadap kemampuan passing bawah dalam permainan bolavoli melalui kemampuan motorik pada Murid SD Inpres Sepee Kabupaten Barru, (7) Untuk mengetahui pengaruh daya ledak otot lengan terhadap kemampuan passing bawah dalam permainan bolavoli melalui kemampuan motorik pada Murid SD Inpres Sepee Kabupaten Barru. Jenis penelitian ini adalah penelitian deskriptif dan inferensial. Populasinya adalah Murid SD Inpres Sepee Kabupaten Barru. Teknik penentuan sampelnya adalah Berdasarkan penggunaan rumus Slovin diperoleh jumlah sampel ditetapkan sebanyak 30 responden. Teknik analisis data yang digunakan adalah analisis statistik deskritif dan inferensial dengan bantuan program komputer SPSS versi 18 Pada taraf kepercayaan 95% atau α=0,05. Berdasarkan hasil penelitian dapat disimpulkan: (1) Ada pengaruh koordinasi mata-tangan terhadap kemampuan motorik pada Murid SD Inpres Sepee Kabupaten Barru, (2) Ada pengaruh daya ledak otot lengan terhadap kemampuan motorik pada Murid SD Inpres Sepee Kabupaten Barru, (3) Ada pengaruh koordinasi mata tangan terhadap kemampuan passing bawah dalam permainan bolavoli pada Murid SD Inpres Sepee Kabupaten Barru, (4) Ada pengaruh daya ledak otot lengan terhadap kemampuan passing bawah dalam permainan bolavoli pada Murid SD Inpres Sepee Kabupaten Barru, (5) Ada pengaruh kemampuan motorik terhadap kemampuan passing bawah dalam permainan bolavoli pada Murid SD Inpres Sepee Kabupaten Barru, (6) Ada pengaruh koordinasi mata tanga terhadap kemampuan passing bawah dalam permainan bolavoli melalui kemampuan motorik pada Murid SD Inpres Sepee Kabupaten Barru, (7) Ada pengaruh daya ledak otot lengan terhadap kemampuan passing bawah dalam permainan bolavoli melalui kemampuan motorik pada Murid SD Inpres Sepee Kabupaten Barru. ABSTRACT Hadijah. 2016. "Effects of Hand-Eye Coordination, Burst Power Arm Muscles and Motor Ability to Ability Passing Down the volleyball game on Elementary Students Instruction Sepee Barru". (Supervised by