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A bibliography on the effects of bottom fishing gear and harvesting techniques on benthic biota OMA
Redant, F..
The present bibliography covers the literature on the effects of seaweed, fish and shellfish harvesting techniques, ranging from digging and hand raking to dredging, hydraulic dredging and bottom trawling, on the sea bed, the zoobenthos and the phytobenthos.
Tipo: Info:eu-repo/semantics/book Palavras-chave: Benthos; Bibliographies; Bottom trawling; Fishing gear.
Ano: 1987 URL: http://www.vliz.be/imisdocs/publications/129257.pdf
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A new mini box corer for sampling muddy bottoms in antarctic shallow waters BABT
Echeverría,Carlos Alejandro; Lavrado,Helena Passeri; Campos,Lúcia; Paiva,Paulo Cesar de.
A new Mini Box Corer (MBC-GEAMB) was developed for bottom sampling in Antarctic shallow waters down to 100 m depth from a small vessel. It consists of a detachable stainless steel box with a total sampling area of 0.0625 m², and a closing arm with a detachable blade without an external frame. MBC allowed stratified bottom sampling and good quality samples comparable to those obtained through diving. A comparison between the MBC-GEAMB and a 0.056 m²van Veen grab (VV) was undertaken for the benthic macrofaunal composition in Admiralty Bay, King George Island (Antarctica). MBC and VV samples were taken from three depths (20, 30 and 60m) in two sites. Total densities sampled with the MBC were up to 10 times higher than those obtained with van Veen grab. VV...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Mini box-corer; Antarctica; Benthos; Sampling.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000300015
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A seasonally varying biotope at Signy Island, Antarctic: implications for meiofaunal structure OMA
Vanhove, S.; Beghyn, M.; Van Gansbeke, D.; Bullough, L.W.; Vincx, M..
Under the typical high-latitude conditions of temperature, productivity and settlement of chlorophyll and phaeophytin to the sediment, many benthic organisms in the Antarctic show strong seasonal variation. Although meiofauna comprise an important component of the southpolar benthic ecosystem, our knowledge of them is limited. The metazoan meiofauna and the surrounding sediments were studied fortnightly for 18 mo in a shallow bay at Signy Island (Factory Cove, South Orkneys, Antarctica) to test whether and how the temporal variability of the environment influenced meiobenthos dynamics. By examination of the distribution of the abundance and biomass of the total community, the density of higher taxonomic groups, and of individual dominant nematode genera...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Benthos; Biomass; Population density; Seasonal variations; Sediment analysis; Trophic relationships; Copepoda [copepods]; Nematoda [Nematodes]; Ostracoda.
Ano: 2000 URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6138
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Accumulation of trace metals in some benthic invertebrate and fish species revelant to their concentration in water and sediment of lake qarun, Egypt OceanDocs
Fishar, M.R.A.; Ali, M.H.H..
Concentrations of major metals (Na, K, Ca, Mg) and some trace metals (Fe, Zn, Mn, Ni, Cu, Co, Pb, Cr, Cd) were determined in water, sediment, benthos and some common fish species from Lake Qarun. Water and sediment samples were collected from seven stations where, the benthos and fish species were collected from three sites representing east, middle and west of the lake. Distribution of studied metals showed that, east part generally had higher contamination than west one which may be attributed to the impact of pollution sources in this area which coming from El-Batts Drain and pumping station in the east part. Mollusca and Crustacea especially Barnacles have the highest concentrations of most heavy metals measured more than Polychaeta which make them...
Tipo: Journal Contribution Palavras-chave: Lake Qarun; Trace metals; Benthos; Fish SEDIMENTS Absorption coefficient Accumulation Biochemical analysis Benthic fish Trace metals Absorption http://aims.fao.org/aos/agrovoc/c_27.
Ano: 2005 URL: http://hdl.handle.net/1834/1215
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Alterações na composição florística das algas da Praia de Boa Viagem (Niterói, RJ) Rev. Bras. Bot.
TAOUIL,ANDRÉ; YONESHIGUE-VALENTIN,YOCIE.
A Baía de Guanabara no decorrer da ocupação de suas margens sofreu uma continua degradação, levando-a a grandes modificações em seu entorno e a inúmeros danos ambientais. Além de uma significativa alteração paisagística, ocorreu também uma queda na qualidade de suas águas, devido ao lançamento de grande quantidade de efluentes não tratados (domésticos e industriais). Este trabalho teve como objetivo inventariar a flora algácea da praia de Boa Viagem (Niterói, RJ), compará-la com levantamentos realizados há três décadas. Os resultados mostraram desaparecimento de 30 táxons (49%) outrora existentes no início da década de 70 e o aparecimento de 14 espécies (23%). A flora atual é dominada por Ulva fasciata Delile e Enteromorpha compressa (L.) Nees, espécies...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Benthos; Flora; Guanabara Bay; Organic pollution; Seaweeds.
Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042002012000004
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Analisis de la captura incidental asociada a la pesqueria de vieira patagónica Zygochlamys patagonica OceanDocs
Bremec, C.; Lasta, M.L.; Lucifora, L.O.; Valero, J..
The faunistic composition of invertebrate by-catch associated with the Patagonian scallop Zygochlamys patagonica fishery before its development were studied. Analyzed material was sampled from catches performed in different beds with the F/V Erin Bruce during 1995, all of them in undisturbed areas, in the Argentine continental shelf. Macrofaunal species were identified, weighted and percentages of presence estimated. By-catch invertebrate species were determined for every bed, mainly invertebrates without present commercial value. This baseline information is considered a useful tool to detect structural changes in the benthic communities in relation to the conservation of possible substrates of recruitment of this resource and to estimate the evolution of...
Tipo: Journal Contribution Palavras-chave: Scallop fisheries; Benthos; Fishing grounds; Benthos; Fishing grounds; Http://aims.fao.org/aos/agrovoc/c_878; Http://aims.fao.org/aos/agrovoc/c_2947.
Ano: 1998 URL: http://hdl.handle.net/1834/2468
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Analyse des effets de l'ouverture du chenal de Grand Bassam (estuaire du fleuve Comoé, lagune Ebrié) sur la macrofaune benthique lagunaire. OceanDocs
Sankaré, Y.; Etien, N..
Cet article présente les résultats d'une étude comparative de trois séries de prélèvements dans la zone proche du canal de Bassam avant, 6 mois et 20 mois après son ouverture en septembre 1987. Les effets constatés sont la diminution de l'abondance et la modification de la composition de la macrofaune benthique. Ces effets semblent de longue durée, sans reprise en ce qui concerne l'espèce la plus abondante, Corbula trigona. Les changements observés dans la structure des peuplements sont dus essentiellement à l'augmentation de la salinité, et à un degré moindre, aux modifications de la nature du sédiment.
Tipo: Journal Contribution Palavras-chave: Benthos; Channels; Estuaries.
Ano: 1991 URL: http://hdl.handle.net/1834/5521
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Aspectos biológicos y ecológicos de los pelecípodos protobranquios integrantes de las comunidades bentónicas del Golfo San Jorge: Nuculana sulculata (Couthouy, 1852), Nucula puelcha d'Orbigny, 1842 y Malletia cumingii (Hanley, 1860) OceanDocs
Piñero, R.A..
La costa patagónica y en especial el golfo San Jorge (Mar Argentino, Atlántico sudoccidental), son zonas de gran interés pesquero, destacándose este último por poseer una de las especies de mayor valor comercial del Mar Argentino: el langostino patagónico Pleoticus muelleri. En un nuevo concepto de análisis integrado, se estudia la relación de los recursos con su ambiente. En el caso particular del langostino, dado su hábito bentónico, resulta de importancia acceder al conocimiento sobre las distintas especies que conforman las comunidades bentónicas y sus interrelaciones. El estudio de las comunidades bentónicas del Golfo San Jorge ha sido realizado por Roux et al. (1995, 1997) consistiendo principalmente en la confección de un amplio inventario...
Tipo: Theses and Dissertations Palavras-chave: Geographical distribution; Taxonomy; Benthos; Ecological associations; Abundance; Feeding behaviour.
Ano: 2001 URL: http://hdl.handle.net/1834/5031
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Bases biológicas para la evaluación y manejo de metapoblaciones de loco en la III y IV Regiones OceanDocs
González, J.; Tapia, C.; Wilson, A.; Stotz, W.; Orensanz, J.M.; Parma, A.M.; Valero, J.; Catrilao, M.; Garrido, J..
En la III y IV Regiones las áreas de manejo y explotación de recursos bentónicos (AMERB) se han establecido como la principal herramienta de manejo del recurso loco (Concholepas concholepas). Sin embargo, su aplicabilidad para la administración y aporte en términos del desarrollo sustentable, aunque sugerentes, requieren de una evaluación objetiva, en cuanto al manejo de carácter discreto que se ha establecido para cada AMERB, desconociendo la eventual interacción espacial de las mismas. En este marco, se desarrolla una aproximación para evaluar el desempeño de las AMERBs desde una perspectiva integral bajo un enfoque metapoblacional. Si bien el estudio está orientado a proporcionar la información de campo que permita probar la hipótesis de metapoblaciones...
Tipo: Report Palavras-chave: Natural populations; Fishery resources; Exploitation; Resource management; Benthos; Benthos; Fishery resources; Resource management; Http://aims.fao.org/aos/agrovoc/c_878; Http://aims.fao.org/aos/agrovoc/c_2942; Http://aims.fao.org/aos/agrovoc/c_6524.
Ano: 2005 URL: http://hdl.handle.net/1834/1754
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Benthic communities and geomorphology of the Tesoro Island Coral Reef, Colombian Caribbean OceanDocs
Sánchez-M., Juan M..
The benthic communities distribution in Tesoro Island (Colombian Caribbean) coral reef was determinad by cartography of reef morphology and functional groups from aerial photographs, theodolite triangulation, and bottom transects over depths ranging from O to 30 m. Tesoro Island is a sand cay reef developed over an emerged reef platform whose basal cone possibly originated by mud diapirism on the continental shelf. The benthic communities are distributed as subzones of the geomorphologic units. The reef crest lies along the breaker zone, formed by Millepora spp. buttresses covered on their tops by Palythoa spp. and seawardly by a turf of Dictyota spp. The rear reef (varying from 0.5-1.5 m ¡n depth) is composed of pavement and grooves with live Porites...
Tipo: Journal Contribution Palavras-chave: Ecology; Benthos; Outer continental shelf; Coral; Algae; Surf; Cartography; Condition factor; Aerial photography; Geomorphology; Coral reefs; Ecology; Benthos; Aerial photography; Coral reefs; Algae; Cartography; Geomorphology; Http://aims.fao.org/aos/agrovoc/c_2467; Http://aims.fao.org/aos/agrovoc/c_878; Http://aims.fao.org/aos/agrovoc/c_8634; Http://aims.fao.org/aos/agrovoc/c_1880; Http://aims.fao.org/aos/agrovoc/c_258; Http://aims.fao.org/aos/agrovoc/c_1344; Http://aims.fao.org/aos/agrovoc/c_3233.
Ano: 1995 URL: http://hdl.handle.net/1834/3803
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Benthic metabolism over the emersion - Immersion alternation in sands colonized by the invasive Manila clam Ruditapes philippinarum ArchiMer
Migne, Aline; Trigui, Rima Jihane; Davoult, Dominique; Desroy, Nicolas.
The effect of an invasive infaunal suspension-feeding bivalve, the Manila clam Ruditapes philippinarum, on benthic inorganic carbon and nutrient fluxes was examined through in situ incubations. Measurements were performed in spring and summer on a tidal sandflat of the Rance estuary (south part of the Western English Channel) colonized by the Manila clam after its deliberate introduction in the 1990's. Benthic inorganic carbon fluxes were measured using light and dark benthic chambers both at emersion and immersion. Benthic nutrient fluxes were measured using dark benthic chambers at immersion. Inorganic carbon (IC) and ammonium sediment release under darkness at immersion reached 5.60 mmol m−2 h−1 and 441 μmol m−2 h−1 respectively for a clam density of...
Tipo: Text Palavras-chave: Benthic fluxes; Benthos; Inorganic carbon; Nutrients; Suspension-feeding bivalve; Tidal flats; France; Western English Channel.
Ano: 2018 URL: https://archimer.ifremer.fr/doc/00412/52327/53100.pdf
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Biological availability of sediment-bound trace metals. ArchiMer
Luoma, S.
It has been established that direct uptake of (at least some) trace metals from sediments contributes to metal concentrations in benthic organisms. Important controls on metal uptake from sediment are the concentration of the exposure, the partitioning of the metals among components of the sediment, and the redox potential of the sediment. Important problems in ecology, physiology, geochemistry and biogeochemistry remain unresolved, however, and a concentrated interdisciplinary research effort will be necessary before a complete understanding of the fate and impact of sediment-bound metals will be possible.
Tipo: Text Palavras-chave: Bioaccumulation; Benthos; Food webs; Biogeochemical cycle; Sediments; Availability; Trace metals.
Ano: 1985 URL: http://archimer.ifremer.fr/doc/1985/acte-1302.pdf
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Biometry of neotropical invertebrates inhabiting floodplain rivers: unraveling bionomy Iheringia, Sér. Zool.
Zilli,Florencia; Barco,Julia del; Vanzetti,Agustín.
ABSTRACT Currently, it is widely recognized that invertebrates play key roles in neotropical floodplains and in many other environments worldwide. However, little information has been published concerning their biometry, in spite that it represents an essential tool for many different studies. Here, we provided length-mass and length-length relationships by fitting the linearized model (log10 Y = log10a + b log10 X) and several mean biomass ratios ± SE for bivalves, gastropods, quironomids, ephemeropterans, oligochaetes and hirudineans. We measured, weighed, oven dried and incinerated to ashes specimens collected from 2005 to 2014 in the Paraná River, Argentina. The lineal equations had fit levels higher than 75% in most of the significant regressions....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Allometry; Organic matter; Paraná River; Wetlands; Benthos; Pleuston.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212017000100214
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Brachiopoda collected in the Western South Atlantic by R/V Shinkai Maru cruises (1978-1979) OceanDocs
Roux, A.; Bremec, C..
Brachipods dredged during the cruises Shinkai Maru IV, V, X and XI (1978 - 1979)on the Western South Atlantic in the Argentine Continental Shelf in 36 sampling stations are here reported. Terebratella dorsata (Gmelin), Magellania venosa (Solander)y Liothyrella uva (Broderip)have been recorded in a depth range of 55 to 189 meters in a area which extends from 36°32'S to 54°30'S and from 55°30'W to 68°42'W. Brachiopod localities and brief ecological and geographical distribution aspects are mentioned.
Tipo: Journal Contribution Palavras-chave: Benthos; Geographical distribution; Benthos; Geographical distribution; Http://aims.fao.org/aos/agrovoc/c_878; Http://aims.fao.org/aos/agrovoc/c_5083.
Ano: 1996 URL: http://hdl.handle.net/1834/1958
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Características fisico-químicas de los sedimentos del Golfo San Jorge y su relación con los organismos bentónicos OceanDocs
Fernández, M..
This is a study on surficial sediments and bottom water physico-chemical characteristics of the San Jorge Gulf (SW Atlantic, Argentina)during spring 1999 - winter 2000 (first studied period), autumn 2001- summer 2002 (second studied period)and winter 2003 (third studied period), based on samples obtained during research cruises carried out on board of the INIDEP (Instituto Nacional de Investigación y Desarrollo Pesquero)research vessels. Environmental variables such as temperature, salinity, density, oxygen and bottom water chlorophyll a content as well as granulometric fractions, total organic matter, total organic carbon, total nitrogen, total phosphorous, chlorophyll a and phaeopigments in sediment concentration and depth were analyzed. The origen and...
Tipo: Theses and Dissertations Palavras-chave: Physicochemical properties; Benthic environment; Organic matter; Shrimp fisheries; Benthos; Organic matter; Benthos; Physicochemical properties; Benthic environment.
Ano: 2006 URL: http://hdl.handle.net/1834/3134
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Cartographie synthétique et analyse des peuplements benthiques sur deux secteurs du littoral français "Manche-Est" et "Loire-Gironde" ArchiMer
Blanchard, Michel; Heim, Marie; Rozec, Xavier; Caisey, Xavier.
This document presents a synthetic study of benthos in two large areas of the French coast: East-Channel and the area between Loire and Gironde. This original synthesis stocktakes biotopes maps published for the vast majority in the 70’s. The report uses the previous descriptions and analysis done by the different authors, and translates them with present specific names or biotopes codes, as proposed in the European EUNIS referring system. The presented maps are standardized and referred geographically with WGS84 to be collated together. For each biotope, specific richness and ecological richness are analysed, thanks to the information given by the various authors. Some informative cards of the main representative species are also presented in the...
Tipo: Text Palavras-chave: Benthos; Peuplement; Cartographie; Littoral français; Manche Est; Bretagne sud; Vendée; Pertuis charentais; Golfe de Gascogne; Benthos; Community; Cartography; French coast; East Channel; Southern Brittany; Vendée; Pertuis charentais; Bay of Biscay.
Ano: 2008 URL: http://archimer.ifremer.fr/doc/00003/11434/7983.pdf
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Changements à long terme dans une communauté benthique d'un golfe méditerranéen (golfe de Fos) ArchiMer
Salenpicard, C; Bellan, G; Bellansantini, D; Arlhac, D; Marquet, R.
Changes over a period of thirty years in a circalittoral mud community (% silt greater than or equal to 75) in the Gulf of Fos (French, Mediterranean coast) have been followed at three sites spaced along a transect NNW-SSE at depths of 15, 35 and 70 m. The results clearly show how the macrobenthic community at the three sites has been influenced by the construction of the port of Fos, notably as a consequence of sediment suspension during the dredging of the docks and the access channel, but also due to the dumping at sea of dredged material (more than 100 x 10(6) m(3) were dredged, about a quarter of which was dumped at sea, at depths of 30 to 60 m). The grouping of the samples taken before, during and after the development of the port (1963-1964, from...
Tipo: Text Palavras-chave: Long-term changes; Benthos; Synecology; Parsimonious analysis.
Ano: 1997 URL: http://archimer.ifremer.fr/doc/00093/20400/18067.pdf
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Changes in the intertidal community structure after a mass mortality event in sandy beaches of Argentina Naturalis
Dadon, J.R..
After a massive mortality of the dominant species (the clam Mesodesma mactroides) occurred in 1995, changes in the intertidal community in sandy beaches of Argentina were monitored. Eight sampling stations were established in a 40 km open stretch and samples were taken every October each year up to 2001. Biomass, density, size frequency distribution and mean growth rates for the most abundant species were analyzed. During the mortality event, only the benthic stages of M. mactroides were affected, their total mean biomass diminishing from 1,399 g to 2 g per running meter beach. Post-mortality recruitment was normal and the growth rates for the youngest cohorts were similar to those previously reported. After a two years’ lag, the wedge clam Donax...
Tipo: Article / Letter to the editor Palavras-chave: Surf clams; Mesodesma mactroides; Donax hanleyanus; Sandy beaches; Benthos; Argentina; Species interactions; 42.73.
Ano: 2005 URL: http://www.repository.naturalis.nl/record/214338
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CHARM : Atlas des Habitats des Ressources Marines de la Manche Orientale ArchiMer
Carpentier, Andre; Coppin, Franck; Dauvin, Jean-claude; Desroy, Nicolas; Dewarumez, Jean-marie; Eastwood, Paul D.; Ernande, Bruno; Harrop, Stuart; Kemp, Zarine; Koubbi, Philippe; Williams, Nigel Leader; Lefebvre, Alain; Lemoine, Michel; Loots, Christophe; S. Martin, Corinne; Meaden, Geoff J.; Ryan, Nick; Tan, Lei; Vaz, Sandrine; Walkey, Mike.
INTRODUCTION: The Dover Strait (Figure 1) connects the North Sea to the English Channel. Here, northern France and South-East England are at their closest. This narrow corridor, one of the world's busiest straits for maritime shipping, is a key economic area for numerous activities, such as leisure and tourism, international ports and shipping, plus the exploitation of living or abiotic marine resources. This area is a significant resource for fisheries because many commercial fish species are abundant there, but also because of the presence of nursery and spawning areas and migratory routes linked to specific environmental characteristics. The vulnerability of these resources, which are subjected to strong anthropogenic pressures, has brought together...
Tipo: Text Palavras-chave: Survey; Landings; Larvae; Eastern channel; Benthos; Fish; Sig; Policy analysis; Species protection; Habita protection; Protected areas; Marine biodiversity conservation.
Ano: 2005 URL: http://archimer.ifremer.fr/doc/2005/rapport-2350.pdf
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Chile. Especies Bentónicas de importancia comercial OceanDocs
Jerez, G.; Olguín, A..
El presente documento es una herramienta útil para todo usuario ligado al sector pesquero, pudiendo ser además consultado como material de apoyo por profesores que busquen conceptos breves y fáciles de entender. La serie entrega un conjunto de 11 fichas de diferentes recursos bentónicos, todos de importancia comercial. Cada una de las fichas abarca conceptos que van desde su nombre científico, pasando por aspectos de su biología, ecología, pesquería y mercado. Junto con lo anterior se proporciona una breve bibliografía de consulta en la cual el usuario puede obtener antecedentes de mayor especificidad según sean sus requerimientos. Al final se entrega un listado de páginas web de interes asociados a las especies contenidas en las fichas.
Tipo: Book Palavras-chave: Benthos; Fishery biology; Benthos; Fishery biology; Http://aims.fao.org/aos/agrovoc/c_878; Http://aims.fao.org/aos/agrovoc/c_2937.
Ano: 2003 URL: http://hdl.handle.net/1834/1402
Registros recuperados: 192
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