35 resultados para Institution of Engineers and Shipbuilders in Scotland

em Aquatic Commons


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The impacts of widening and deepening the existing navigation channel in Grays Harbor on Dungeness crab, crangon shrimp and fish was investigated. The spatial and temporal distribution of these organisms was studied using an otter trawl and ring nets, and the uptake of organisms by dredges was estimated from samples collected on working hopper and pipeline dredges. ... Impacts of the dredging project on crabs, shrimp and fish could be associated with entrainment, food loss and toxicants released from sediments. Scenarios are presented that predict impacts. Suggestions for reducing impacts are given.

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The Channel Islands—sometimes called the Galapagos of North America—are known for their great beauty, rich biodiversity, cultural heritage, and recreational opportunities. In 1980, in recognition of the islands’ importance, the United States Congress established a national park encompassing 5 of California’s Channel Islands (Santa Barbara, Anacapa, Santa Cruz, Santa Rosa, and San Miguel Islands) and waters within 1 nautical mile of the islands. In the same year, Congress declared a national marine sanctuary around each of these islands, including waters up to 6 nautical miles offshore. Approximately 60,000 people visit the Channel Islands each year for aquatic recreation such as fishing, sailing, kayaking, wildlife watching, surfing, and diving. Another 30,000 people visit the islands for hiking, camping, and sightseeing. Dozens of commercial fishing boats based in Santa Barbara, Ventura, Oxnard, and other ports go to the Channel Islands to catch squid, spiny lobster, sea urchin, rockfish, crab, sheephead, flatfish, and sea cucumber, among other species. In the past few decades, advances in fishing technology and the rising number of fishermen, in conjunction with changing ocean conditions and diseases, have contributed to declines in some marine fishes and invertebrates at the Channel Islands. In 1998, citizens from Santa Barbara and Ventura proposed establishment of no-take marine reserves at the Channel Islands, beginning a 4-year process of public meetings, discussions, and scientific analyses. In 2003, the California Fish and Game Commission designated a network of marine protected areas (MPAs) in state waters around the northern Channel Islands. In 2006 and 2007, the National Oceanic and Atmospheric Administration (NOAA) extended the MPAs into the national marine sanctuary’s deeper, federal waters. To determine if the MPAs are protecting marine species and habitats, scientists are monitoring ecological changes. They are studying changes in habitats; abundance and size of species of interest; the ocean food web and ecosystem; and movement of fish and invertebrates from MPAs to surrounding waters. Additionally, scientists are monitoring human activities such as commercial and recreational fisheries, and compliance with MPA regulations. This booklet describes some results from the first 5 years of monitoring the Channel Islands MPAs. Although 5 years is not long enough to determine if the MPAs will accomplish all of their goals, this booklet offers a glimpse of the changes that are beginning to take place and illustrates the types of information that will eventually be used to assess the MPAs’ effectiveness. (PDF contains 24 pages.)

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Between 1994 and 1997, 258 tissue and 178 sediment samples were analyzed for chlorpyrifos throughout the coastal United States and the Great Lakes. Subsequently, 95 of the 1997 tissue samples were reanalyzed for endosulfan. Tissue chlorpyrifos concentrations, which exceeded the 90th percentile, were found in coastal regions known to have high agricultural use rates but also strongly correlated with sites near high population. The highest concentrations of endosulfans in contrast, were generally limited to agricultural regions of the country. Detections of chlorpyrifos at several Alaskan sites suggest an atmospheric transport mechanism. Many Great Lakes sites had chlorpyrifos tissue concentrations above the 90th percentile which decreased with increasing distance from the Corn Belt region (Iowa, Indiana, Illinois, and Wisconsin) where most agriculturally applied chlorpyrifos is used. Correlation analysis suggests that fluvial discharge is the primary transport pathway on the Atlantic and Gulf of Mexico coasts for chlorpyrifos but not necessarily for endosulfans. (PDF contains 28 pages)

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The main objective of this study was to build the capacity of the CFDO and provincial staff to conduct livelihoods studies using a more participatory approach. The livelihoods study team comprised one person from the CFDO, four people from the Kandal Provincial Fisheries Office and two from the Kandal Department of Women's Affairs. Before conducting the field study, the team members participated in a three-day training workshop on how to use various PRA tools and techniques. The study team then spent five days in the village finding out about people’s livelihoods and the resources available to them. [PDF contains 37 pages]

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This is the report of a livelihoods study team working together with villagers from Dang Tong Village in Kampong Chhnang Province, Cambodia. The study of the livelihoods of farmers and fishers is based on information provided by the villagers of Dang Tong, who shared their knowledge and raised real problems related to their livelihoods. [PDF contains 37 pages.]

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This is the report of a livelihoods study team working together with villagers from Koh Chbar Village in Kratie Province, Cambodia, to find out about the livelihoods of farmers and fishers. It is based on information provided by the villagers who shared their knowledge and raised real issues related to their livelihoods. [PDF contains 37 pages.]

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This is the report of a livelihoods study conducted in Koh Reusey Village, Prorlay Meas Commune, Kampong Leng District, Kampong Chhnang Province. The main objective of the study was to understand the villagers’ lives, their standards of living, the hardships they experience, external impacts on their lives, and current and future needs. The livelihoods team spent five days in the village from 27 June to 1 July 2002 and worked with 60 villagers. These included men, women, younger and older villagers. One hundred and thirty-five families in the village were represented. [PDF contains 21 pages]

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This is the report of a livelihoods study team working together with villagers from Trorbek Pork in Kandal Province, Cambodia. The livelihoods study is based on the current population census (1998) and key informant interviews: 10 to 70 villagers (50% women) representing the 140 families of Trorbek Pork Village, Kampong Kong Commune, Koh Thom District, Kandal Province. (PDF contains 40 pages)

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This is the report of a livelihoods study team working together with villagers from Saob Leu Village in Kratie Province, Cambodia. The study is based on information provided by the villagers, who shared their knowledge and spoke about the real problems they face with their livelihoods. [PDF contains 40 pages]

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This is the report of a livelihoods study team working together with people from two villages in Long An Province, Vietnam. The study is based on information provided by the villagers, who shared their knowledge and spoke about real problems they face with their livelihoods. This study was conducted from 11-20 October 2001. The team worked with key informants in two communes, Thuan Nghia Hoa and My Thanh Dong, who volunteered to participate and represented the 177 households in the village. (PDF contains 40 pages)

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This is the report of a livelihoods study team working together with villagers from two communes in Quang Tri Province, Vietnam: Ta Long Commune in Dakrong District and A Tuc Commune in Huong Hoa District. The study is based on information provided by members of the communes, who shared their knowledge and spoke about real problems they face with their livelihoods. This study was conducted from 10-22 October 2001. The team worked with key informants in two communes who volunteered to participate and represented the households in the village. (PDF contains 31 pages)

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This is the report of a livelihoods study team working together with members of two communes in Quang Tri Province, Vietnam. The study is based on information provided by the commune members, who shared their knowledge and spoke about real problems they face with their livelihoods. The study was conducted from 10-30 October 2001. The team worked with key informants in two communes, Dan Tien in Vo Nhia District and Phuong Tien in Dinh Hoa District, who participated in discussions and represented households in the commune. The livelihoods studies in Dan Tien and Phuong Tien communes explored existing human, labor and natural resources as well as other factors affecting people’s livelihoods. (PDF contains 32 pages)

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Monitoring of the waters of the Middle Atlantic Bight and Gulf of Maine has been conducted by the MARMAP Ships of Opportunity Program since the early 1970's. Presented in this atlas are portrayals of the temporal and spatial patterns of surface and bottom temperature and surface salinity for these areas during the period 1978-1990. These patterns are shown in the form of time-space diagrams for single-year and multiyear (base period) time frames. Each base period figure shows thirteen-year (1978-1990) mean conditions, sample variance in the form of standard deviations of the measured values, and data locations. Each single-year figure displays annual conditions, sampling locations, and departures of annual conditions from the thirteen-year means, expressed as algebraic anomalies and standardized anomalies. (PDF file contains 112 pages.)

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Fourteen stations were sampled in the Kenyan waters of Lake Victoria in order to assess distribution and abundance of zooplankton. Seven stations were selected in the Nyanza gulf while the rest were in the open waters of the lake. Zooplanktons samples were collected monthly from November 1998 to January 1999, using a 1.5 m long Nansen type plankton net of 243 mu m mesh size and 50 cm diameter. Representative specimens were dissected and identified to species level

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Ocean observing has been recognized by the US Commission on Ocean Policy, the Ocean Research and Resources Advisory Panel, the Joint Ocean Commission Initiative, and many other ocean policy entities and initiatives as foundational to meeting the nation’s need for more effective coastal and ocean management. The Interim Report of the Interagency Task Force on Ocean Policy (September 2009) has called for strengthening the nation’s capacity for observing the nation’s ocean, coastal, and Great Lakes systems. (PDF contains 3 pages)