Nutrient Limitation of Periphyton in a Spring-Fed, Coastal Stream in Florida, USA.

There is strong evidence to suggest that ground-water nitrate concentrations have increased in recent years and further increases are expected along portions of the central Gulf coast of Florida. Much of the nitrate enriched groundwater is discharged into surface waters through numerous freshwater springs that are characteristic of the area and the potential for eutrophication of their receiving waters is a legitimate concern. To test the potential effects of elevated nutrient concentrations on the periphyton community an in situ nutrient addition experiment was conducted in the spring-fed Chassahowitzka River, FL, USA, during the summer of 1999. Plastic tubes housing arrays of glass microscope slides were suspended in the stream. Periphyton colonizing the microscope slides was subjected to artificial increases in nitrogen, phosphorus or a combination of both. Slides from each tube were collected at 3- to 4- day intervals and the periphyton communities were measured for chlorophyll concentration. The addition of approximately 10 μg/L of phosphate above ambient concentrations significantly increased the amount of periphyton on artificial substrates relative to controls; the addition of approximately 100 μg/L of nitrate above ambient concentrations did not. The findings from this experiment implicated phosphorus, rather than nitrogen, as the nutrient that potentially limits periphyton growth in this system.(PDF contains 4 pages.)

STREAM Journal, Vol. 2, No. 2, pp 1-19. April-June 2003

CONTENTS: Livelihoods and languages: a SPARK-STREAM learning and communications process, by Kath Copley and William Savage. Towards broader contextual understandings of livelihoods, by Elizabeth M. Gonzales, Nguyen Song Ha, Rubu Mukherjee, Nilkanth Pokhrel and Sem Viryak. Using tools to build shared understandings, using a sustainable livelihoods framework to learn, by Nuchjaree Langkulsane. Learning about rattan as a livelihood, by Mariel de Jesus and Christine Bantug. Meanings of “community-managed area,” by Arif Aliadi. Lessons learnt about processes for learning and communicating, by Graham Haylor and Ronet Santos.

STREAM Journal, Vol. 2, No. 3, pp 1-18. July-September 2003

CONTENTS: Livelihood Improvements through fisheries in the Pode community in Pokhara, Nepal, by Tek Bahadur Gurung and Jay Dev Bista. Women’s participation in coastal resources management and livelihoods in Khanh Hoa Province, Vietnam, by Nguyen Thu Hue, Than Thi Hien, Pham Thi Phuong Hoa, Nguyen Viet Vinh and Dao Viet Long. Supporting people’s efforts and interactions in coastal resources management in Indonesia, by Tabitha Yulita. Planning for a community fisheries M&E system, by Heather Airlie and Haiko Meelis. Identifying needs and recommendations for efficient stakeholder communications through an information access survey, by Elizabeth M. Gonzales, Malene Felsing and Erwin L Pador. IEC seminar-workshop in support of fisheries ordinance implementation in Roxas City, Philippines, by Belinda M. Garrido and Elizabeth M. Gonzales.

STREAM Journal, Vol. 2, No. 4, pp 1-18. October-December 2003

CONTENTS: An experience with group formation in Jabarrah, West Bengal, by Amar Prasad, Virendra Singh, Binay Sahay and Gautum Dutta. Aquaculture self-help groups in rural West Bengal, by Satyendra Tripathi, Graham Haylor and William Savage in consultation with Jagdish Gangwar, Virendra Singh, Gautam Dutta and Prabhat Pathak. Lessons learned for Fulwar Toli from an exposure visit to Jabarrah Bhim Nayak and Rubu Mukherjee. Livelihood intervention by Fish Farmers Development Agency: a success story from Mayurbhanj, Orissa, by G.B. Parida. Understanding of assets-based livelihoods through participatory rural appraisal to eliminate hunger, by Binay Sahay. Poverty ranking tools in PRA: experiences of EIRFP in addressing vulnerability, by Binay Sahay.

STREAM Journal, Vol. 3, No. 1, pp 1-18. January-March 2004

CONTENTS: Creating understanding and ownership of collaborative research results through ‘learning by doing,’ by Robert Arthur and Caroline Garaway. Fish culture, farming, markets and promotion: an integrated, sustainable approach to aquaculture and rural development, by Pen Rotha and Brendan Boucher. Fisheries policy reform impact assessment in Cambodia: understanding policy and poor people, by Philip Townsley and Sem Viryak. “Shrimp Hero” Phan The Phuong, by Ngo Minh Khoi. Coral farming in Vietnam, by Nguyen Viet Vinh. The global fisheries market: can rural poor people benefit? Issues raised by STREAM Media Monitoring Reports, by Paul Bulcock.

STREAM Journal, Vol. 3, No. 2, pp 1-17. April-June 2004

CONTENTS: BFAR moves on in Region 6, by Janice N. Tronco. Livelihoods initiatives in Sapian Bay, by Tee-Jay A. San Diego. Improving access to information through Barangay Learning Resource Centers, by Elizabeth M. Gonzales. The Philippines Fisheries Information System, by Agnes C. Solis. The contributions of planning activities in the participatory process, by Rommel P. Guarin. Inter-LGU alliance building: a key to sustaining the Integrated Fisheries and Aquatic Resource Management Council (IFARMC), by Josephine P. Savaris.

STREAM Journal, Vol. 3, No. 3, pp 1-17. July-September 2004

CONTENTS: What do we need to learn about to understand how people live, by Kath Copley and William Savage. Taking steps to making livelihoods work, by Erwin L. Pador. Reflections on the India-Nepal Workshop, by Rubu Mukherjee and Nilkanth Pokhrel. Reflections on the role of livelihoods approaches and analysis in Lao PDR, by Phanthavong Vongsamphanh and Graham Haylor. After the Workshop on Livelihoods Approaches and Analysis, by Khin Maung Soe, Aye Aye Zaw, Nilar Kyawe and Myant Thar Htun. The relevance of livelihoods approaches in Yunnan, China, by Susan Li and William Savage

STREAM Journal, Vol. 3, No. 4, pp 1-17. October-December 2004

CONTENTS: Pasoso project: local livelihoods and turtle conservation in a small island MPA in central Sulawesi, Indonesia, by Abigail Moore. Fisheries development in Lao PDR, by Khamphet Roger. Creating better fisher livelihoods through leasable fisheries, by Khin Maung Soe. The Jankar system for sustainable livelihoods: lessons from the EIRFP, by Binay Kumar Sahay. Alternative livelihoods for landlocked areas in BFAR Region 6, by Jacqueline T. Mamburam. Lessons learned and future replication from Trao reef locally managed marine reserve, by Than Thi Hien.

STREAM Journal, Vol. 4, No. 1, pp 1-17. January-March 2005

CONTENTS: Young people taking bolder steps, by Josephine P. Savaris. Providing a venue for voices to be heard, by Elizabeth M. Gonzales and Josephine Savaris. Rehabilitation of Bundu Pond: STREAM’s Initiative and DoF’s Action, by Bhim Nayak and Ashish Kumar. Coastal resources utilization and conservation issues in Cox’s Bazar, Bangladesh, by M.K. Abu Hena, H. Sharifuzzaman, M.S. Aftabuddin and M.N. Haque. People, fish and reefs: a livelihoods learning curve, by Abigail Moore. Understanding the marine ornamental trade and its impact on the livelihoods of poor stakeholders in the Philippines, by Elizabeth M. Gonzales.

STREAM Journal, Vol. 4, No. 2, pp 1-17. April-June 2005

CONTENTS: Changes in Jabarrah, by Satyendra D. Tripathi, as told by Thanda Mahato. Palu Hijau in the Banggai Islands Jabarrah: using knowledge for change, by Akhdary Dj Supu, translated by Abigail Moore. Banggai Islands case study: building foundations for action, by Samliok Ndobe, translated by Abigail Moore. Three stories from Nepal, by Ghanshayam Poudel, Suraj, Ramesh Gautam, Pashupati Chaudhary, Anil Subedi, Muralidhar Mishara and Chet Nath Adhikari. Me and my work, by Sheryll Alcazar. Livelihoods approaches: skills learned, applied and shared, by Monica Piquero-Tan.

STREAM Journal, Vol. 4, No. 3, pp 1-19. July-September 2005

CONTENTS: One-stop Aqua Shops: an emerging phenomenon in Eastern India, by Graham Haylor, Rubu Mukerjee and S.D. Tripathi. Ranchi One-stop Aqua Shop, by Ashish Kumar. Kaipara One-stop Aqua Shop, by Kuddus Ansary. Bilenjore One-stop Aqua Shop, by Bhawani Sankar Panda. Patnagarh One-stop Aqua Shop, by Dipti Behera and Lingraj Otta. Using bar-coding in a One-stop Aqua Shop, by Christopher Keating.

STREAM Journal, Vol. 4, No. 4, pp 1-17. October-December 2005

CONTENTS: Seaweed culture and farmer incomes in Bekasi, Indonesia, by A. Mauksit L. Maala and Aniza Suspita. Significant change for a self-help group, by Nguyen Song Ha. Conflict over fishing in Jharkhand, by Ashish Kumar. Two worlds across a highway, by William Savage. Critical steps in preparing coastal communities for effective policy changes, by Josephine P. Savaris. New guidelines on data collection and iniormation sharing for co-management, by Charlotte Howard.

STREAM Journal, Vol. 5, No. 1, pp 1-18. January-March 2006

CONTENTS: Policy development as a theme and policy briefs as a genre, by Graham Haylor and William Savage. Decriminalizing Cambodian family-scale fishers through a livelihoods approach to law reform, by Nao Thuok and Chun Sopha. Longer pond leases in Orissa, by Reshmee Guha and Rubu Mukherjee. One-stop aqua shop: a “one-window delivery” service center for aqua-farmers and fishers, by S.D. Tripathi, Rubu Mukherjee and Kuddus Ansary. Fisheries and aquaculture policy formulation process in Pakistan, by Muhammad Junaid Wattoo and Dr. Muhammad Hayat. Improving the international marine ornamental fish trade to sustain and improve the livelihoods of poor people involved in the trade, by Aniza Suspita, Michael J. Phillips and Samliok Ndobe.

STREAM Journal, Vol. 5, No. 2, pp 1-17. April-June 2006

CONTENTS: First one-stop aqua shop in Pakistan, by Syed Nadeem Sharib and Muhammad Junaid Wattoo. Dad Karim: a fisherman of Gwadar, by Abdul Rahim. Learning to fish in the deep sea of Sindh Province, by Muhammad Alam. Freshwater prawn fishery of Pakistan, by Muhammad Yaqoob. Cephalopod fishery: a local technique to catch cuttlefish in the coastal waters of Pakistan, by Shabir Ali Amir. Grouper culture in Pakistan, by S. Makhdoom Hussain and Zakia Khatoon.

STREAM Journal, Vol. 5, No. 3, pp 1-18. July-September 2006

CONTENTS: Impacts of the fisheries policy reform on livelihoods in Cambodia, by Chun Sophat and Mitchell Isaacs. A success story about aquaculture in India, by Shri Prameswar Bhoi. Two stories from Nepal: fisherman becomes a rich fish farmer, women’s empowerment through aquaculture, by Rjendra Yadav, Rabindra Man Malla. A positive change in perceptions in Pakistan, by Cecile Brugere. Small details that matter: a story from the Philippines, by Rommel Guarin. A Vietnamese farmer managing aquaculture and capture in a reservoir, by Nguyen Van Lung.