24 research outputs found
Adolescents with mental health problems in school: towards better help-seeking and support
No full textYour mental health during adolescence can have important consequences for your school functioning since adolescents with mental health problems have a higher chance of school dropout. To prevent school dropout, it is important that adolescents with mental health problems seek help in time and get appropriate support, either within school or through psychosocial care. However, asking for help and accepting help is often a problem for adolescents. Thus, increasing our insight into help-seeking behaviour of adolescents is important, not only for their current mental health, but also for their mental health in adulthood. Therefore, we investigated the help-seeking behaviour of adolescents, and the use of support in school by adolescents and the factors that influence it. We also investigated the feasibility of the Supported Education method, a support method that aims to support adolescents with mental health problems to remain in school. Finally, we also looked at treatment outcomes of psychosocial care for adolescents and the influence of health literacy skills. In general, we can conclude that mental health prevention and support for adolescents is essential and that there are many opportunities to address this in the school environment. In addition, it is important to stimulate knowledge and skills of adolescents on mental health, for example to help them seek help and talk about mental health, as well as to create a mental health positive climate in schools. This needs a school wide approach, in which school management, education professionals and adolescents are involved
Exploratory Scenario Analysis: The Future of Urban Logistics in 2040
No full textUrban logistics is characterized by a high degree of freight flow fragmentation, the employment of various delivery methods, and the use of various vehicle capacities. Urban logistics is important for inhabitants' quality of life both in a negative and positive sense and plays a large economic role with significant advantages for various stakeholders along complex, dynamic supply chains. These trends influence the direction of how the city and the supply chain will develop over the coming decades. Getting a clearer vision of city logistics by exploring (economic, societal, and environmental) trends and different new forms of transportation with exploratory scenarios benefits a wide range of stakeholders. With this vision, municipalities can adapt their urban logistics policy strategy and logistical companies & developers their investments in supply chains and infrastructure. Rather than sharing their experiences, cities mimic each other's freight legislation. Because the stakes of the various players in the issue are not directly recognized, obligations for urban freight are passed to other stakeholders, and expectations on projects are unclear. and they do not feel responsible for the solution. Changes in logistic stakeholders' conduct are hindered by their passive and awaiting attitudes toward one another. Technological and economic developments have had an impact on urban freight leading to a growing scale of consumption and production. Four distinct scenarios for exploring the future of urban logistics were developed. The four scenarios give an overview of the future of urban logistics and the organization of the inner city supply chain in 2040. The developed vision 2040 for urban logistics has shown significant changes regarding the use of technologies and infrastructure, the design of services and delivery concepts, market organization and cooperation, planning and regulation and finally to a certain extent also behavior. All in all, eventually in 2040, we will not be worse off in terms of CO2 emissions than in the current scenario as climate change will put pressure on increasing emission reduction regulation, even in scenarios 1 & 3 where market forces dominate. Scenario 2 might be the best future outcome for increasing the city's liveability but less good for logistical businesses due to heavy regulation in the urban logistics system. Scenario 4 might be the worst for businesses due to increased cost and economic headwinds and city inhabitants due to reduced living conditions caused by extreme weather. This scenario could be averted if there would be a drastic reduction in emissions to stop climate change. The development of innovative urban distribution methods and driving forces can have a substantial impact on the future urban logistics system. These scenarios, implications & recommendations should assist businesses, policymakers and investors in imagining future developments, exploring relevant uncertainties, and studying the implications for their merit.Complex Systems Engineering and Management (CoSEM
Macroinfaunal assemblages associated with mussel and clam beds in an estuary of Southern Chile
No full textSamples were collected from September 1990 to February 1992, at three subtidal sites of the middle reaches of the Queule River estuary, southern Chile, to analyze the spatial and temporal variability of the macroinfauna inhabiting substrata with different abundances of bivalves. In addition, water and sediment samples were obtained to study the relationships between the temporal variability in macroinfaunal abundances, physical factors, and chlorophyll a content. Temperature, salinity, and chlorophyll a showed a rather strong seasonal variability but slight between-site differences. Sediment characteristics and bivalve abundances, by contrast, exhibited little temporal variability but large differences between sites. The macroinfauna was primarily represented by polychaetes, Prionospio (Minuspio) patagonica being dominant in the three areas. Most dominant species showed similar trends of temporal variability, with maximum abundances recorded during spring and fall. The appearance of recruits was restricted to the summer with little difference among sites. Multiple regression analyses showed that the temporal variability of macroinfaunal adults and recruits, was primarily associated with variability in salinity and water temperature, respectively. Spatial variability of these organisms was also explained by variations in these factors, together with those of sediment texture and organic matter content. No evidence of interactions (significant relationships) was found between the abundances of bivalves and those of the macroinfauna, nor among macroinfaunal organisms.PT: J; CR: ANDERSSON CA, 1981, ADV CERAM, V3, P184 ANDRE C, 1991, MAR ECOL-PROG SER, V71, P227 BACHELET G, 1986, HYDROBIOLOGIA, V142, P233 BERTRAN CE, 1989, REV CHIL HIST NAT, V62, P19 BEUKEMA JJ, 1986, OPHELIA, V26, P45 BEUKEMA JJ, 1990, EXPECTED EFFECTS CLI, P83 BRAVO A, 1989, THESIS U AUSTR CHILE BUTMAN CA, 1987, OCEANOGR MAR BIOL, V25, P113 DETHIER MN, 1984, ECOL MONOGR, V54, P99 DEVOOYS CGN, 1990, EXPECTED EFFECTS CLI, P83 DITTMANN S, 1990, HELGOLANDER MEERESUN, V44, P335 FOLK RL, 1980, PETROLOGY SEDIMENTAR GRASSLE JF, 1974, J MARINE RE, V32, P253 GRAY JS, 1974, OCEANOGR MAR BIOL AN, V12, P223 HAIR JF, 1979, MULTIVARIATE ANAL HAVEN DS, 1972, GEOL SOC AM MEM, V133, P121 HINES AH, 1989, VELIGER, V32, P109 HOLLAND AF, 1987, ESTUARIES, V10, P227 JARAMILLO E, 1985, STUDIES NEOTROPICAL, V20, P33 JARAMILLO E, 1992, PSZNI MAR ECOL, V13, P317 JARAMILLO E, 1993, MARINE ECOLOGY PROGR, V82, P85 JOHNSON RG, 1977, J MAR RES, V35, P273 LEVIN LA, 1984, ECOLOGY, V65, P1185 LOW A, 1993, THESIS U AUSTR CHILE NICHOLS FH, 1986, SCIENCE, V231, P525 OLAFSSON EB, 1986, J ANIM ECOL, V55, P517 PATERSON DM, 1991, DEV COASTAL ENG, P111 PETERSON CH, 1979, ECOLOGICAL PROCESSES, P233 PETERSON CH, 1987, LIMNOL OCEANOGR, V32, P143 PETHICK J, 1984, INTRO COASTAL GEOMOR PINO M, 1983, REV GEOLOGICA CHILE, V18, P77 POSEY MH, 1987, MAR ECOL-PROG SER, V39, P99 POSEY MH, 1990, REV AQUAT SCI, V2, P343 QUIJON P, 1993, ESTUAR COAST SHELF S, V37, P655 REISE K, 1983, MAR ECOL-PROG SER, V12, P229 REISE K, 1985, TIDAL FLAT ECOLOGY E RHOADS DC, 1970, J MAR RES, V28, P150 RHOADS DC, 1982, ANIMAL SEDIMENT RELA, P3 RISK MJ, 1977, J SEDIMENT PETROL, V47, P1425 ROJAS C, 1984, REV BIOL MARINA VALP, V20, P139 ROMAN MR, 1978, ESTUARINE COASTAL MA, V6, P47 SHA LP, 1991, CLASTIC TIDAL SEDIME, P199 SOKAL RR, 1969, BIOMETRIA SOUZA WP, 1979, ECOLOGY, V60, P1225 STOLINE MR, 1981, AM STAT, V35, P134 STRICKLAND JDH, 1972, B FISH RES BOARD CAN, V167 THISTLE D, 1981, MAR ECOL-PROG SER, V6, P223 TORO JE, 1984, REV BIOL MARINA VALP, V20, P23 VOS PC, 1988, TIDE INFLUENCED SEDI, P511 WILSON WH, 1991, ANNU REV ECOL SYST, V21, P221 WOODIN SA, 1976, J MARKETING RES, V34, P25; NR: 51; TC: 8; J9: ESTUARIES; PG: 13; GA: TU217Source type: Electronic(1
The significance of saltmarshes. In: McComb, A.J., Kobryn, H.T. and Latchford, J.A. (eds) Samphire marshes of the Peel-Harvey estuarine system Western Australia.
No full textSaltmarshes are complex ecosystems. Numerous studies have been undertaken on them in different parts of the world, mostly in the northern hemisphere. A few previous studies have been made of the marshes of the Peel-Harvey System (Rose & McComb, 1980; Backshall & Bridgewater, 1981; McComb & Lukatelich, 1986) but increased pressure for development, and the need for an understanding the possible effects of the then proposed Dawesville Channel highlighted the lack of information about saltmarshes in the area. This report endeavours to addresses this lack of information by presenting recent research into the extent, composition and functioning of the Peel-Harvey saltmarshes
Recommendations for the future management and conservation of saltmarshes in the Peel-Harvey estuarine system. In: McComb, A.J., Kobryn, H.T. and Latchford, J.A. (eds) Samphire marshes of the Peel-Harvey estuarine system Western Australia.
No full textEstuarine saltmarshes can stimulate a number of senses. In a visual way, they provide a pleasing vista of procumbent to tall shrubs and trees tinged with colours ranging from red in autumn to succulent green in spring. This view is often enhanced by the sight of hundreds of wading birds feeding and dabbling along the shores and flying low over this interface between land and water. Saltmarshes also provide a contrasting sense when the rich productive smells of the marsh are detected. These smells are composed of decaying sun-baked vegetation mixing with the rotting gases of fetid muddy land. To some, the landscape features and the close proximity of open estuarine waters provides a potentially dollar-rich urban development challenge. With enough fill and re-contouring, these areas could be converted into expensive waterside homes. To all, however, the swarming mosquito hazes can drive us into our homes or cars making us wonder why nature has been so free in creating such a varied environment.
Overall, samphire marshes truly embody a large ecotone metaphor. On one side is a unique habitat providing an interface and link between land and water, and on the other side an environment fertile for human cultural conflict. Unfortunately, humans are an ecotone species and are drawn to the fringes of estuaries. To reduce conflict and successfully manage these environments requires an understanding of current land ownership, reserve status of fringing land, international treaty obligations, the planning process and the use of practical management plans and structures. It is also important to recognise the wisdom of using applied management and theoretical research plans to provide answers to management questions. They are most helpful if these plans recognise the uniqueness of most saltmarshes and give the public and estuarine manager the kind of information which allows saltmarshes to be conserved and sustained well into the future. Ultimately, any management plan must provide direction to help prevent the degradation of saltmarsh functions, such as ecologically important biodiversity, productivity and nutrient storage and release functions
Population biology of the intertidal snailChilina ovalis sowerby (pulmonata) in the Queule River estuary, South-Central Chile
No full textThe temporal variability in abundance and population structure of the gastropod Chilina ovalis Sowerby was studied in the upper intertidal zone of Queule River estuary, south-central Chile (c. 40 degreesS). Snails were collected monthly (September 1995-December 1997) from haphazardly-located quadrats (50 x 50 cm, n = 5 each time), and counted and measured (shell height) in the laboratory. Water and sediment samples were collected at the same time to study the snail's habitat characteristics. Overall mean abundance was 115 individuals m(-2) (SD = 55). Monthly abundance estimates indicated a clear decrease during 1997, This decrease appeared to be related to the annual recruitment success of the species and at least partially to water temperature and sedimentological variability. Overall size range of C. ovalis was 1.5-27.5 mm shell height. Growth varied Seasonally with highest growth rates observed after recruitment (November-February). Slower growth continued throughout the austral winter months. Despite changes in abundance between 1996 and 1997, no differences were detected when population growth estimates were compared between years. A maximun longevity or approximately 4 yr was estimated from the growth curves of the cohorts, and a life cycle with more than one reproductive period is suggested.PT: J; CR: ALTABA CR, 1993, ZOOLOGICAL J LINNEAN, V107, P73 ANDERSSON CA, 1981, ADV CERAM, V3, P184 BARNES RSK, 1990, J EXP MAR BIOL ECOL, V138, P183 BERTALANFFY LV, 1938, HUM BIOL, V10, P181 BERTRAN CE, 1989, REV CHIL HIST NAT, V62, P19 BEUKEMA JJ, 1988, SENCKENBERG MARIT, V20, P19 BEUKEMA JJ, 1991, J EXP MAR BIOL ECOL, V153, P97 BIANCHI TS, 1981, J MAR RES, V39, P547 BICK A, 1994, INT REV GES HYDROBIO, V79, P325 BOSNIA AS, 1990, HYDROBIOLOGIA, V190, P97 BOYER L, 1980, THESIS U CHICAGO ILL BROWN DS, 1987, J MOLLUS STUD, V53, P105 CALOW P, 1978, MALACOLOGIA, V17, P351 CAMPOS H, 1985, FISH COMMUNITY ECOLO, P407 CAQUET T, 1993, J MOLLUS STUD, V59, P43 CHERRILL AJ, 1985, J CONCHOL, V32, P123 CRANFORD PJ, 1987, CAN J ZOOL, V66, P459 CURTIS LA, 1983, ECOLOGY, V64, P819 CURTIS LA, 1995, J MAR BIOL ASSOC UK, V75, P913 DAVIS GM, 1989, P ACAD NAT SCI PHILA, V141, P333 DAVOULT D, 1993, NETHERLANDS J AQUATI, V27, P415 DECASTELLANOS ZA, 1991, FAUNA AGUA DULCA REP, P1 DECASTELLANOS ZA, 1991, FAUNA AGUA DULCE REP, P21 DEOSTROWSKI MN, 1993, SYSTEMATIC PARASITOL, V24, P191 DRAKE P, 1995, J MOLLUS STUD, V61, P185 EDWARDS DC, 1977, ECOLOGY, V58, P1218 FERRIZ RA, 1987, REV MUSEO ARGENTINO, V6, P6 FORBES VE, 1990, OECOLOGIA, V83, P53 GATEN E, 1986, HYDROBIOLOGIA, V135, P45 GAYANILO FC, 1989, GRAFT GUIDE COMPLEAT GAYANILO FC, 1996, FAO COMPUTERIZED INF, V8 GIANGRANDE A, 1994, OCEANOGR MAR BIOL, V32, P305 HERSHLER R, 1986, MALACOLOGIA, V27, P127 HOENIG JM, 1982, STAT STUDY SEASONAL HUNT JH, 1987, J EXP MAR BIOL ECOL, V108, P229 JARAMILLO E, 1985, PSNI MARINE ECOLOGY, V5, P119 JOHNSON RG, 1974, J MARINE RE, V32, P313 KUBE J, 1996, ARCH HYDROBIOL, V138, P213 LEVINTON JS, 1995, MAR BIOL, V122, P417 MARSH AG, 1990, LIMNOL OCEANOGR, V35, P710 MAYER LM, 1989, ECOLOGY MARINE DEPOS, P98 MCCOLLUM EW, 1998, ECOLOGY, V79, P1980 MEADOWS PS, 1989, MAR BIOL, V101, P75 MIQUEL SE, 1983, NEOTROPICA, V29, P221 MIQUEL SE, 1984, REV MUSEO PLATA ZOOL, V13, P249 MIQUEL SE, 1986, NEOTROPICA, V33, P23 MORRISEY DJ, 1990, J MAR BIOL ASSOC UK, V70, P99 NEWELL GE, 1964, PHYSL MOLLUSCS, V1, P59 OLAFSSON EB, 1994, OCEANOGR MAR BIOL, V32, P65 PAULY D, 1979, INT COUNCIL EXPLORAT, V24, P1 PAULY D, 1984, FISHBYTE, V2, P21 PAULY D, 1984, PENAEID SHRIMPS THEI, P220 PILDITCH CA, 1997, CONT SHELF RES, V17, P1869 PINO M, 1995, DEV SEDIMENTOL, V53, P227 PONDER WF, 1993, RECORDS AUSTR MUSEUM, V42, P201 QUIJON P, 1993, ESTUAR COAST SHELF S, V37, P655 QUIJON P, 1996, ESTUARIES, V19, P62 QUIJON P, 1999, VELIGER, V42, P72 ROSENBERG AA, 1986, NATURE, V324, P152 RUSSELHUNTER WD, 1978, PULMONATES SYSTEMATI, P335 SPARRE P, 1989, FISHBYTE, V7, P23 SPIGHT TM, 1976, OECOLOGIA BERLIN, V24, P283 STRICKLAND JDH, 1972, FISHERIES RES BOARD, V167 TALLMARK B, 1980, MAR ECOL-PROG SER, V3, P51 VAKILY JM, 1990, THESIS C ALBRECHTS U VENEGAS C, 1992, THESIS U AUSTRAL CHI WARWICK RM, 1984, OECOLOGIA, V61, P32 WATLING L, 1991, AM ZOOL, V31, P789 YANG SL, 1998, ESTUAR COAST SHELF S, V47, P227; NR: 69; TC: 0; J9: ESTUARIES; PG: 9; GA: 422QNSource type: Electronic(1
Water regimes and marsh distribution. In: McComb, A.J., Kobryn, H.T. and Latchford, J.A. (eds) Samphire marshes of the Peel-Harvey estuarine system Western Australia.
No full textTide has long been recognised as the most influential factor determining plant zonation and the development of saltmarsh communities, and it is the tide that largely determines the structure and function of saltmarshes (Clarke & Hannon, 1969).
The zonation of species with increasing distance from the water's edge and increasing elevation is initially determined by the frequency of tidal flooding and the tolerance of various species to this (Huiskes, 1990). Tidal range usually sets the upper and lower limits of the marsh. The lower limits are set by depth and duration of flooding, and the consequent mechanical effect of the waves, sediment availability and rate of erosion. The upper limits are influenced mainly by soil water salinity and nutrient availability, both of which are linked to tidal flooding frequency (Mitsch & Gosselink, 1993), tidal water being the main source of soil salt and the major mechanism for nutrient transport (Clarke & Hannon, 1971)
The ecological significance of saltmarshes to the Peel-Harvey Estuarine system. In: McComb, A.J., Kobryn, H.T. and Latchford, J.A. (eds) Samphire marshes of the Peel-Harvey estuarine system Western Australia.
No full textThe saltmarshes of the Peel-Harvey system are important to the environmental health of the estuary and to this region of the Swan Coastal Plain. Although there have been few scientific investigations specific to this area, a number of world-wide studies on the ecological characteristics of saltmarshes have indicated they are very important to the environmental health of estuaries and coastal ecosystems (Mann, 1982; Kennish, 1990). Unfortunately, there is a paucity of studies on Australian saltmarsh ecosystems (Fairweather, 1990). However, in a local context there is evidence that saltmarshes in the Peel-Harvey system are critical to the overall ecological health of the Estuary (Table 6.1). For example, over 83 bird species have been observed in the saltmarshes of the estuary (Ninox, 1990) (Plate 6.1) and between 18 and 25 of these species are known to be trans-equatorial migrants (Jaensch et al., 1988; Wilkes, 1990). This provides the basis for listing the whole Peel-Harvey Estuarine area as a RAMSAR bird treaty area as well as for the estuary being listed in the JAMBA and CAMBA treaties.
The area is also significant for other ecological reasons which will be briefly outlined, along with the major ecological points suggested in the previous chapters, and compared with data and literature generated from saltmarsh research elsewhere in the world. In this way it is hoped that a better appreciation of the ecological significance of the saltmarshes in the Peel-Harvey Estuary will be reached
Spatially structured genetic variation in a broadcast spawning bivalve: quantitative vs. molecular traits
No full textUnderstanding the origin, maintenance and significance of phenotypic variation is one of the central issues in evolutionary biology. An ongoing discussion focuses on the relative roles of isolation and selection as being at the heart of genetically based spatial variation. We address this issue in a representative of a taxon group in which isolation is unlikely: a marine broadcast spawning invertebrate. During the free-swimming larval phase, dispersal is potentially very large. For such taxa, small-scale population genetic structuring in neutral molecular markers tends to be limited, conform expectations. Small-scale differentiation of selective traits is expected to be hindered by the putatively high gene flow. We determined the geographical distribution of molecular markers and of variation in a shell shape measure, globosity, for the bivalve Macoma balthica (L.) in the western Dutch Wadden Sea and adjacent North Sea in three subsequent years, and found that shells of this clam are more globose in the Wadden Sea. By rearing clams in a common garden in the laboratory starting from the gamete phase, we show that the ecotypes are genetically different; heritability is estimated at 23%. The proportion of total genetic variation that is between sites is much larger for the morphological additive genetic variation (QST = 0.416) than for allozyme (FST = 0.000–0.022) and mitochondrial DNA cytochrome-c-oxidase-1 sequence variation (ΦST = 0.017). Divergent selection must be involved and intraspecific spatial genetic differentiation in marine broadcast spawners is apparently not constrained by low levels of isolation.
Seasonal and inter-annual variability in population abundances of the intertidal macroinfauna of Queule river estuary, South-Central Chile
No full textSediment samples were monthly collected at Queule river estuary (ca. 39 degrees S), south-central Chile, from October 1990 to April 1992, and from September 1995 to November 1997 to study temporal variability in population abundances of the macroinfauna inhabiting sandy and muddy-sand intertidal substrates. Sandy sediments had higher percentages of sand particles and lower percentages of mud particles, biogenic aggregates and total organic matter than muddy-sand sediments. The same macroinfaunal species were found at both sites. That macroinfauna was dominated by polychaetes: the spionid Prionospio (Minuspio) patagonica Augener 1923, the capitellid Capitella sp. and the nereid Perinereis gualpensis Jeldes 1963, Other common organisms were the amphipod Paracorophium hartamannorum Andres 1975 and the small bivalve Kingiella chilenica Soot-Ryen 1959. The highest abundances of the total macroinfauna usually ocurred during summer months (January-February), The most abundant species was P. (M,) patagonica (up to 130-140,000 ind m(-2) in the muddy-sand sediments). During some months, this species had significantly higher abundances at the muddy-sand sediments. A similar trend is that shown by P. hartmannorum; i.e., significantly higher abundances at the muddy-sand sediments (up to 75,000 ind m(-2)). During many months, the population abundances of Capitella sp. and K. chilenica were significantly higher at the sandy site. The highest population abundances of Capitella sp. were close to 37,800 ind m(-2) (February 1991 and February 1996), while the maximum values for K. chilenica ranged from 13.000 to 14,000 ind m(-2) (February 1991 and November 1995, respectively). The population abundances of P. gualpensis (with the exception of the period October 1995-January 1996) were similar at both sites. Interannual comparisons of macroinfaunal abundances carried out for the sandy site showed no significant differences among years for the total macroinfauna and for all the species, but P. gualpensis. No significant differences among years were found for the total macroinfauna, P. (M.)patagonica, P. gualpensis and P. hartmannorum at the muddy-sand site. On the other hand, the abundances of Capitella sp. and K. chilenica differed significantly among years. Significant differences among months within annual periods were found for the total macroinfauna and species population abundances at the sandy and muddy-sand sites, The temporal variability of the macroinfauna did not have any significant relationship with the temporal variability in sediment characteristics.PT: J; CR: ANDERSSON CA, 1981, ADV CERAM, V3, P184 BERTRAN C, 1984, STUDIES NEOTROPICAL, V19, P33 BERTRAN CE, 1989, REV CHIL HIST NAT, V62, P19 BEUKEMA JJ, 1989, HELGOLANDER MEERESUN, V43, P405 BONE D, 2000, J COASTAL RES, V16, P278 BOYDEN CR, 1973, ESTUARINE COASTAL MA, V1, P203 CAMPOS H, 1985, FISH COMMUNITY ECOLO, P407 CARR MR, 1997, PRIMER USER MANUAL P CLARKE KR, 1993, AUST J ECOL, V18, P117 CLARKE KR, 1994, CHANGE MARINE COMMUN DIAZ RJ, 1984, HYDROBIOLOGIA, V115, P153 DONOSO E, 1991, THESIS U AUSTR CHILE ECKMAN JE, 1996, J EXP MAR BIOL ECOL, V200, P207 FRID C, 1989, HOLARCTIC ECOL, V12, P9 GASTON GR, 1995, GULF RES REP, V9, P111 HAVEN DS, 1968, SEDIMENT GEOL, V2, P141 IENO EN, 1998, ESTUARIES, V21, P690 JARAMILLO E, 1985, REV CHIL HIST NAT, V58, P127 JARAMILLO E, 1985, STUDIES NEOTROPICAL, V20, P33 JENSEN KT, 1990, J EXP MAR BIOL ECOL, V137, P1 LEVIN LA, 1981, J MAR RES, V39, P99 LEVIN LA, 1984, ECOLOGY, V65, P1185 LOPEZJAMAR E, 1986, HYDROBIOLOGIA, V142, P137 MARSH AG, 1990, LIMNOL OCEANOGR, V35, P710 MAURER D, 1979, INT REV GES HYDROBIO, V64, P379 MCCARTHY SA, 2000, ESTUAR COAST SHELF S, V50, P245 MCLUSKY D, 1971, ECOLOGY ESTUARIES PINO M, 1983, REV GEOLOGICA CHILE, V18, P77 PINO M, 1995, DEV SEDIMENTOL, P227 QUIJON P, 1993, ESTUAR COAST SHELF S, V37, P655 QUIJON P, 1996, ESTUAR COAST SHELF S, V43, P653 QUIJON P, 1996, ESTUARIES, V19, P62 RACHOR E, 1982, NETH J SEA RES, V16, P141 READ GB, 1984, NEW ZEAL J MAR FRESH, V18, P399 REISE K, 1982, NETH J SEA RES, V16, P29 RHOADS DC, 1978, ESTUARINE INTERACTIO, P221 RHOADS DC, 1982, ANIMAL SEDIMENT RELA, P3 SARDA R, 1995, MAR BIOL, V121, P431 SHANKS AL, 1987, J EXP MAR BIOL ECOL, V114, P1 SNOWDON RJ, 1990, MAR BIOL, V105, P51 SOKAL R, 1995, BIOMETRY PRINCIPLES TALLEY TS, 2000, ESTUARIES, V23, P97 TURNER A, 1984, MEDIO AMBIENTE, V7, P29 TURNER A, 1988, THESIS U AUSTRAL CHI VELASQUEZ C, 1987, THESIS U AUSTRAL CHI VENEGAS C, 1992, THESIS U AUSTRAL CHI VIRNSTEIN RW, 1977, ECOLOGY, V58, P1199; NR: 47; TC: 0; J9: REV CHIL HIST NAT; PG: 14; GA: 458DMSource type: Electronic(1
