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  • Aspects of the life history of Porphyra dioica collected in Porto, Portugal, were investigated under laboratory and field conditions. This is one of the most common Porphyra species on the north coast of Portugal and can be found throughout the year. Field studies showed higher percentage cover, from 23% to 66%, from February to May in 2001 and 2002, compared to other times of the year. The effects of temperature, photon flux density (PFD) and photoperiod on growth and reproduction were tested. Zygotospores germinated fastest at 15°C and a PFD of 25 μmol photons m−2 s−1. Growth rate of the conchocelis was more affected by temperature than by photoperiod. In the three photoperiods tested, growth rate was maximal at 15°C, under 25–75 μmol photons m−2 s−1. Conchosporangium formation was greatest at 15°C, 25–75 μmol photons m−2 S−1 light and short-day, 8: 16 h light–dark conditions. In all conditions tested, conchosporangium formation was almost nonexistent in free-floating conditions. Optimal conditions for conchosporangium maturation (15°C, 8: 16 h light–dark and 5–25 μmol photons m−2 s−1) also promoted spore release after 18 weeks. Aeration appeared to be crucial for normal blade development. No archeospores were observed. Preliminary findings of the conditions for growth of the gametophyte stage are also discussed.

    Author(s): Yarish, Charles Rui Pereira, Isabel Sousa-Pinto
  • Experimental field cultivation of the agar yielding seaweed Gracilaria edulis was carried out on long line coir ropes and nets at four locations in the lagoon of Minicoy Island during the period March-June '90. The plants of G. edulis collected from Krusadai Island (Mandapam) and Kavaratti Island (Lakshadweep) were transported to Minicoy by rail and ship and used as seed material. The seedlings grew very well at two places and yield obtained after 60 days growth was a seven fold increase over the quantity of seed material. This may be attributed to the clarity of water, low sedimentation and less epiphytic growth in these two locations. The growth of G. edulis introduced in other two palces was affected by heavy sedimentation and attachment of several other algae on seedlings, coir ropes and nets. The present experiment shows the high potential for the successful cultivation of this agarophyte in the lagoon of Minicoy.

    Author(s): Kaliaperumal, N, Rajagopalan, M S, Chennubhotla, V S Krishnamurthy
  • Nutrient bioextraction using Gracilaria tikvahiae McLachlan was tested at two sites: one off Fairfield, CT (LIS), and the other at the mouth of the Bronx River Estuary (BRE), during the summer and fall of 2011 and 2012. The estimates of nitrogen (N) removal by Gracilaria over a 90-day growing season were up to 28 and 94 kg N ha-1 at the LIS and BRE sites, respectively. In July 2012, Gracilaria grew up to 16.5% day-1 at BRE and 4.8% day-1 at the LIS site. Tissue N contents at the same periods were 3.7% (BRE) and 1.5% (LIS), respectively. These results demonstrate rapid assimilation of nutrients fueling the growth of new Gracilaria tissue at the BRE site, while nutrients appeared to limit growth at the LIS site during the summer months. The estimated C removal by Gracilaria at the BRE and LIS sites were up to 300 kg ha-1 (LIS) and 727 kg ha-1 (BRE), respectively. The potential economic values of N and C sequestration for the period examined in this study were as high as $311 (LIS) and $940 ha-1 (BRE) for N, and $5.51 (LIS) and $13.32 ha-1 (BRE) for C if seaweed aquaculture would be included in Connecticut's Nitrogen Trading Program. This represents a potential additional economic incentive for seaweed growers, beyond the direct value of seaweed products. The findings in this study showed that seaweed (Gracilaria) aquaculture can be a useful technique for nutrient bioextraction in urbanized coastal waters, such as the estuaries of New York City (BRE) and Long Island Sound.

    Author(s): Yarish, Charles Jang K. Kim, George P. Kraemer
  • Nutrient bioextraction using Gracilaria tikvahiae McLachlan was tested at two sites: one off Fairfield, CT (LIS), and the other at the mouth of the Bronx River Estuary (BRE), during the summer and fall of 2011 and 2012. The estimates of nitrogen (N) removal by Gracilaria over a 90-day growing season were up to 28 and 94 kg N ha−1 at the LIS and BRE sites, respectively. In July 2012, Gracilaria grew up to 16.5% day−1 at BRE and 4.8% day−1 at the LIS site. Tissue N contents at the same periods were 3.7% (BRE) and 1.5% (LIS), respectively. These results demonstrate rapid assimilation of nutrients fueling the growth of new Gracilaria tissue at the BRE site, while nutrients appeared to limit growth at the LIS site during the summer months. The estimated C removal by Gracilaria at the BRE and LIS sites were up to 300 kg ha−1 (LIS) and 727 kg ha−1 (BRE), respectively. The potential economic values of N and C sequestration for the period examined in this study were as high as $311 (LIS) and $940 ha−1 (BRE) for N, and $5.51 (LIS) and $13.32 ha−1 (BRE) for C if seaweed aquaculture would be included in Connecticut's Nitrogen Trading Program. This represents a potential additional economic incentive for seaweed growers, beyond the direct value of seaweed products. The findings in this study showed that seaweed (Gracilaria) aquaculture can be a useful technique for nutrient bioextraction in urbanized coastal waters, such as the estuaries of New York City (BRE) and Long Island Sound.

    Author(s): Jang K. Kim , George P. Kraemer, Charles Yarish
  • The Task Force In response to the growing problem of invasive species, in 2003, Governor Pataki signed legislation sponsored by Senator Marcellino and Assemblyman DiNapoli. Chapter 324 of the Laws of New York of 2003 called for an Invasive Species Task Force to explore the invasive species issue and to provide recommendations to the Governor and the Legislature by November 2005. The statute describes the intended membership of the Task Force and directs that it be co-led by two New York State agencies:

    Department of Environmental Conservation (DEC)

    Department of Agriculture and Markets (DAM)

    Other members of the Task Force include:

    New York State Department of Transportation

    New York State Thruway Authority (and Canal Corporation)

    New York State Museum (and Biodiversity Research Institute)

    New York State Office of Parks, Recreation and Historical Preservation

    New York State Department of State Adirondack Park Agency

    New York Sea Grant

    Cornell University

    Invasive Plant Council

    The Nature Conservancy

    New York State Natural Heritage Program

    New York State Farm Bureau

    Empire State Marine Trades Association

    New York State Nursery and Landscape Association

    The Task Force has taken numerous steps toward accomplishing its mission. It first established a Steering Committee to oversee the day-to-day work of the Task Force. Early on, it arranged for the whole Task Force to consult with the Executive Director of our federal counterpart, the National Invasive Species Council. The next task was to design and conduct an in-depth survey of all Task Force member organizations to assess concerns, capabilities, and needs. Then, the Task Force established several smaller teams to investigate in detail, to analyze existing efforts, to identify needs, and to develop recommendations. Each team was designed to pull together organizations that share a common area of interest or expertise. The Task Force reached out to numerous stakeholders to invite them to participate as members of these teams.

    The Task Force has met at various locations around New York State. These vi meetings were open to the public and dates, times and locations were announced in the Environmental Notice Bulletin. At most meetings, members visited sites of ongoing invasive species management projects. Formal public review of the Draft Report of the Invasive Species Task Force will be accomplished through a combination of both in-person public meetings and internet communication. It will be completed during the summer of 2005.

    Author(s): Roger Phinney, Suzanne Maloney, John Tauzel, Alpa Pandya, Bill Jacobs, Hilary Oles, Willie Janeway, Andy Beers, Steve Clemants, Chuck O'Neill, Ron Gill, Cliff Sigfried, Ed Mills
  • The first U.S. National Report on Aquaculture for the 41stU.S. Japan Natural ResourcesPanel on Aquaculture overviews major policy items, current trends in aquaculture production, andother important developments affecting contemporary U.S. aquaculture. Policy- April 2013 saw the release of the National Ocean Policy Implementation Plan (NOP-IP), a document to translate President Obamaʼs 2010 National Ocean Policy (Executive Order13547 --Stewardship of the Ocean, Our Coasts, and the Great Lakes) to specific federal actions.Aquaculture featured prominently in the Implementation Plan. The Joint Sub-committee onAquaculture (JSA) was re-named the Interagency Working Group onAquaculture (IWG-A),and was tasked with identifying and supporting milestones in the NOP-IP. The NOP-IP alsosupported the National Shellfish Initiative to increase shellfishproduction and restoration in U.S.waters. NOAA and the Gulf of Mexico Fishery Management Councilare working on a FisheryManagement Plan to permit aquaculture in federal waters in theGulf of Mexico. The U.S.currently does not have a framework to permit aquaculture in the EEZ, and this would be a firstfor the U.S. if it goes into effect. Developments- For the first time in some years, in 2013 many new sites for shellfish aquaculturehave been permitted. This is attributed to increased interest in shellfish aquaculture, particularlyin the northwest and northeast, federal interagency and state efforts on behalf of the WashingtonShellfish Initiative, and state-level successes at streamliningpermitting. In September 2013,the California Shellfish Initiative was launched. A program isunderway to permit and restoreHawaiian fishponds, a form of traditional Hawaiian aquaculture,for cultural heritage, subsistence,and possibly commercial production. Production Trends- Aquaculture production in the U.S. is largely composed of catfish, crawfish,trout, salmon, oysters, mussels, clams, tilapia, and shrimp. For the 15-year period from 1996-2011,the value of U.S. aquaculture showed 3% average year-over-yeargrowth, though total volumefell by an average of 0.5%. Mariculture (salmon and shellfish),on the other hand, showed robust4% by volume and 5% by value year-over- year average growth inthe same period. 2011 is themost current year published aquaculture statistics are available. From 2010 to 2011, total U.S.aquaculture went down -18.8% by volume (to 277,335 metric tons)but grew 4.2% by value (to1.34billion dollars). From 2010 to 2011 mariculture decreasedby -12.4% by volume (to 35,739metric tons) while growing 0.3% by value (to 314 million dollars). However, in the previous yearfrom 2009-2010, mariculture grew 21.6% by volume (to 40,823 metric tons) and 28.5% by value (to312 million dollars). Most of the growth in value for marine aquaculture was from salmon (Salmosalar) and oyster (mainly Crassostrea gigas and Crassotrea virginica) production.

    Author(s): Mike B. Rust, Robert C. Jones, Marie L. Fujitani
  • The Arkansas Chapter of the American Fisheries Society is pleased to announce the first call for papers for the 143rd An - nual Meeting of the American Fisheries Society to be held in Little Rock, Ar - kansas! The meeting theme, “Preparing for the Challenges Ahead,” is likely to stimulate thoughts and presentations on challenges facing natural resource agen - cies regarding mandates to do more with fewer resources, challenges facing edu - cators regarding a growing knowledge base and changing student expectations, challenges facing students regarding their roles as future scientists and man - agers serving increasingly more diverse stakeholders, and other challenges that confront fisheries and natural resource professionals. AFS 2013 will take place on September 8-12 in Little Rock, at the Statehouse Convention Center located at the east end of President Clinton Avenue. The River Market District in Little Rock and the Argenta District in North Little Rock offer the best in dining, entertain - ment, museums, and shopping. Let Little Rock show you some southern hospitality next year

    Author(s): Christopher Racey, Steve Lochmann
  • Dr. Isabella Kauakea Yau Yung Aiona Abbott will forever be an icon in Hawai‘i for her academic achievements, revolutionary seaweed research, various accolades, and over a hundred limu-related publications. However, it’s the values she embodied as a person that make her a timeless inspiration to Native Hawaiians and to the entire state of Hawai‘i.

    Dr. Abbott grew up in an era when Native Hawaiians confronted harmful misconceptions and offensive stereotypes, and a time when women were seen as lesser than men. She rejected those narratives and instead lived authentically as a passionate young Native Hawaiian woman who became the world’s leading expert on algae in the Pacific. She always credited her love for algae to the limu lessons she learned from her mom while playing on the beach as a child. Her upbringing led her to understand that Hawaiians have always been scientists. She uplifted Hawaiian culture and the relationship that Western science has with Hawaiian culture throughout her algal research in Hawai‘i and California. She inspired University of Hawai‘i at Mānoa to create a Hawaiian ethnobotany bachelor’s degree and touched the lives of countless students through her teachings. She once said in an interview, “Hawaiian culture is unbelievably sophisticated,” and every day she embodied the meaning of those words.

    Dr. Abbott is a treasure to scientists, Hawai‘i, Native Hawaiians, and anyone told that they can’t do something because of their background. She will always be remembered and honored as one of Hawai‘i’s most inspirational leaders.

    Author(s): Celia Smith, Bill Thomas, Kawika Winter, Mazie K. Hirono
  • Over 80 local farmers, business leaders, government representatives, and interested members of the general public participated in the first Opportunities in Aquaculture Workshop, at the World Resort Saipan on July 10-11, 2008. The workshop, the first of its kind on Saipan, was conducted by Oceanic Institute (OI) and the Northern Marianas College Cooperative Research, Extension & Education Service (NMC-CREES), with funding from CTSA. The goal of the workshop was to educate residents of the Commonwealth of the Northern Mariana Islands (CNMI) and Guam about the potential of aquaculture in the region. In addition, the workshop provided residents with information about region-specific concerns and aquaculture-related regulation and permitting issues.

    Author(s): Claus Bier, Mike Ogo, Dustin Moss
  • Promote and facilitate the contribution that fisheries and aquaculture can make to economic growth.

    Author(s): James L. Anderson

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