The barnacle Chthamalus bisinuatus is the only sessile invertebrate colonizing oil patches on beachrocks one year after a massive oil spill on the Northeastern Brazilian coast

2021 ◽  
Vol 173 ◽  
pp. 112952
Author(s):  
Joao Bosco Gusmao ◽  
Ana C.R. Albergaria-Barbosa ◽  
Ruy Kenji P. Kikuchi ◽  
Tatiane Combi
2008 ◽  
Vol 6 (2) ◽  
pp. 267-274 ◽  
Author(s):  
José Policarpo de Mendonça-Neto ◽  
Cassiano Monteiro-Neto ◽  
Luiz Eduardo Moraes

We provide here the first assessment of the composition, abundance and distribution of rocky reef fishes of Itaipu Sound, Rio de Janeiro, off the southeastern Brazilian coast. Monthly visual censuses, benthic quadrats and chain link transects were conducted over one year on rocky reefs at three islands (Menina, Mãe and Pai). A total of 2466 individual fish, belonging to 29 families and 42 species were recorded. The most abundant fish species were Parablennius pilicornis, Haemulon steindachneri, Orthopristis ruber and Diplodus argenteus. Sheltered and complex habitats showed the most abundant and diverse fish populations. There was a major significant separation between sampling sites and a secondary seasonal pattern. The three sites showed similar fish communities with locally structured environmental gradients according to their inherent habitat characteristics.


1999 ◽  
Vol 59 (2) ◽  
pp. 211-218 ◽  
Author(s):  
M. APOLINÁRIO ◽  
R. COUTINHO ◽  
M. H. BAETA-NEVES

The present study examines habitat selection and grazing pressure of the periwinkle Nodilittorina lineolata (Gmelin, 1791) on the rocky shore of Arraial do Cabo, RJ, Brazil (lat. 23°S, long. 43°W). Transfer experiments suggest that periwinkles actively select the mid intertidal, where the cirripede Chthamalus bisinuatus Pilsbry is the dominant sessile invertebrate. We also conducted a caging experiment in the middle intertidal, manipulating grazers and light, to assess the impact of grazing upon microalgal density. Grazing pressure significantly reduced microalgal abundance at the mid-intertidal level, suggesting that food availability plays an important role in the habitat selection of periwinkles on the studied shore.


1977 ◽  
Vol 1977 (1) ◽  
pp. 539-542 ◽  
Author(s):  
Elaine I. Chan

ABSTRACT This study reports biological effects of the July 1975 oil spill in the Florida Keys for a one-year period. Floating seagrass served as a natural sorbent for oil and stranded in the intertidal zone. A soluble component of oil, or possibly an organic cleaning solvent, leaching from this debris, was probably responsible for a mass mortality of subtidal echinoderms on the rocky platform. Several crab species were eliminated from the rocky shores, mangrove fringes, and Batis marsh communities for several months. Subtidal pearl oysters (Pinctada radiata) from the grass flat community suffered extensive mortalities, also attributable to a soluble component of oil. Red mangrove (Rhizophora mangle)seedlings on the fringe and in the mangrove swamp, sustaining greater than 50% oiling of their leaves, were killed. Dwarf black mangroves (Avicennia nitida) with greater than 50% oiling of pneumatophores also died, as did some where the substrate remained oiled one year later. Elevated temperatures, exceeding lethal limits for many intertidal organisms, were observed in oil-covered substrates. Oil persisted in the substrate of rocky shores and mangrove-marsh areas for at least one year after the spill.


1975 ◽  
Vol 1975 (1) ◽  
pp. 217-221
Author(s):  
Carl L. Eidam ◽  
Edward V. Fitzpatrick ◽  
John F. Conlon

ABSTRACT This paper deals with the control and cleanup of a 100,000-gallon (422,000-liter) no. 6 fuel-oil spill which occurred in Casco Bay, Maine, on July 22, 1972. A lack of locally available equipment, logistics involved in moving men and equipment to numerous offshore islands which were affected by the spill, and disposal of large amounts of oil-soaked debris presented unique problems to on-scene personnel. Additionally, the development of environmental priorities for cleanup proved most critical because the area produces commercial harvests of shellfish, lobsters, and intertidal seaweed, and serves as one of Maine's principal recreation areas. Of particular concern was the major obstacle encountered in disposing of over 10,000 yards (7,646 m3) of oil-soaked seaweed which had either been gathered from intertidal rocks or removed from the water surface, and over 4,500 yards (3,440 m3) of contaminated beach sand. Oil-soaked sand was finally placed in a sanitary landfill utilizing guidelines developed by personnel from EPA, Region I, Solid Waste Program. Oil-soaked debris was incinerated at a facility in Gray, Maine, which was specially modified for this purpose. Modifications included burner head and feed-grate changes to accept the debris. The damage resulting from the spill and the effectiveness of the cleanup were studied up to one year after the spill, utilizing a private consulting firm under contract to EPA. These studies indicated that the cleanup techniques used resulted in more successful survival and/or recolonization of intertidal populations than in areas not cleaned.


2003 ◽  
Vol 2003 (1) ◽  
pp. 135-143 ◽  
Author(s):  
Erich R. Gundlach ◽  
Bart Baca ◽  
David C. Barry

ABSTRACT This oil spill on 7 April 2000 offers a case example where marsh restoration was made as part of the response effort to successfully enhance environmental recovery at a marsh heavily contaminated from a pipeline break (126,000–139,000 gallons of Numbers 2 and 6 fuel oils, >46,000 gallons eventually recovered). Marsh operations guided by U.S. EPA included mechanical trenching, limited low-to-moderate pressure flushing, hand recovery using sorbent pads and working from placed boardwalks, and the aerial application of fertilizer (bio-stimulation). After proving that planting would be successful in pilot plots and in a heavily damaged portion of the marsh, almost all of ‘ground zero’ (W01A) was hand-planted between 21 June and 31 July 2000 with 24,048 plugs of Spartina alterniflora and 1,728 plugs of S. patens (saltmeadow cordgrass). Both species were locally grown, nursery stock from native seed. Plants were placed in a 3” (8 cm) diameter hole containing 10 grams of slow release fertilizer and back-filled with washed masonry sand. Field surveys indicate recovery of 70–80% after one year and near complete recovery two years after. In spite of no apparent credit being given for replanting by government-lead Damage Assessment studies (NOAA et al., 2002), results clearly indicate that proactive planting during the response results in an environmental benefit and reduces the time needed for marsh recovery after an incident.


1999 ◽  
Vol 1999 (1) ◽  
pp. 1097-1102 ◽  
Author(s):  
Dagmar Schmidt Etkin

ABSTRACT This poster session gives an overview of oil spill statistics on oil spills of at least 10,000 gallons (34 tonnes) that have occurred worldwide over the last 20 years. Included are: the annual amount of oil spilled from different source types as well as in total, and the number and amount of oil spilled by size range. The data indicate that in any one year, the total amount of oil spilled depends largely on the incidence of catastrophic spills. While the frequency of smaller spills under 100,000 gallons (340 tonnes) greatly exceeds those of spills of over 1 million gallons (3,400 tonnes), the total volume of these smaller spills represents only a fraction of one catastrophic spill. While tanker spills have often gotten more media coverage, the amount of oil spilled from these vessels is often less than that spilled from pipelines, storage tanks, and other facilities.


1999 ◽  
Vol 1999 (1) ◽  
pp. 1083-1085
Author(s):  
Nobuhiro Sawano

ABSTRACT The Russian tanker Nakhodka spilled approximately 86,600 kiloliters of heavy C oil in the Sea of Japan on January 2, 1997. By this accident, more than 2,000 kilometers of coastline along the Sea of Japan has been affected. Spilt oil was stranded on a 4-kilometer sand beach from Katano to Shioya on January 7. Soon after the oil beached, recovery works were done by heavy machinery without taking account of plant vegetation. These recovery works were completed with a large amount of oil mixed in with the sand. Plant vegetation on this beach was seriously damaged. One year after the oil spill, many parts of the plant vegetation disappeared here and there on this beach. It has become clear that plant vegetation plays a great role in protecting sand beach from erosion., Observing this case, environmental sensitivity of sand beaches should be classified into two groups: one is sand beach with plant vegetation, the other is without plant vegetation. The former is more sensitive.


1996 ◽  
Vol 42 (1-4) ◽  
pp. 404-405 ◽  
Author(s):  
C. Porte ◽  
X. Biosca ◽  
M. Sole ◽  
D. Pastor ◽  
J. Albaiges

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