Assessing the sewage discharge effects on soft-bottom macrofauna through traits-based approach

2021 ◽  
Vol 173 ◽  
pp. 113003
Author(s):  
Seyed Ehsan Vesal ◽  
Federica Nasi ◽  
Jessica Pazzaglia ◽  
Larissa Ferrante ◽  
Rocco Auriemma ◽  
...  
Keyword(s):  
Soft Bottom ◽  
Sewage Discharge

Detection of giardia and cryptosporidium in marine waters

1995 ◽  
Vol 31 (5-6) ◽  
pp. 439-442 ◽  
Author(s):  
D. C. Johnson ◽  
K. A. Reynolds ◽  
C. P. Gerba ◽  
I. L. Pepper ◽  
J. B. Rose
Keyword(s):  
Health Risk ◽  
Tap Water ◽  
Polypropylene Fiber ◽  
Marine Waters ◽  
Sewage Discharge ◽  
Antibody Staining ◽  
Parasite Detection ◽  
Cartridge Filter ◽  
Overall Efficiency ◽  
Immunofluorescence Antibody

Raw sewage disposal in marine waters is a common practice in many countries. This practice raises health risk concerns of possible transmission of Giardia and Cryptosporidium. Both of these protozoa have been shown to be transmitted by recreational swimming. To date no studies have determined the efficiency of their detection and concentration in marine waters. This study evaluated the efficiency of their detection in tap water and from marine waters in Hawaii with two different filter types. This study compared a polypropylene fiber cartridge filter, DPPPY (1.0 μm nominal porosity) (Cuno, Meriden, CT) which is typically used for parasite detection and the Filterite negatively charged filter (0.45μm) (Filtemp Sales, Inc., Phoenix, AZ). The latter would allow for both viruses and parasites to be concentrated simultaneously. The organisms were removed from the filter by passing the eluent through the filters in the opposite direction of collection and detected by indirect immunofluorescence antibody staining specific for Giardia and Cryptosporidium. Processing was simpler and faster with the Filterite filter and the overall efficiency for both Giardia and Cryptosporidium detection was greater. These methods are currently being used for the detection of the oocysts and cysts at bathing beaches in Hawaii impacted by marine sewage discharge.

scholarly journals Regional and latitudinal patterns of soft-bottom macrobenthic invertebrates along French coasts: Results from the RESOMAR database

2017 ◽  
Vol 130 ◽  
pp. 96-106 ◽  
Author(s):  
Régis K. Gallon ◽  
Nicolas Lavesque ◽  
Jacques Grall ◽  
Céline Labrune ◽  
Antoine Gremare ◽  
...  
Keyword(s):  
Soft Bottom ◽  
Latitudinal Patterns

Device for Sampling Unconsolidated Soft‐Bottom Sediments in Moderately Deep Waters

1995 ◽  
Vol 24 (4) ◽  
pp. 786-788 ◽  
Author(s):  
E. F. Doyle ◽  
H. P. Dokkum ◽  
C. J. W. Vermulst ◽  
D. L. Anderson ◽  
J. Mossa
Keyword(s):  
Bottom Sediments ◽  
Soft Bottom ◽  
Deep Waters

New Devonian microconchids (Tentaculita) from the Holy Cross Mountains, Poland

2011 ◽  
Vol 85 (4) ◽  
pp. 757-769 ◽  
Author(s):  
Michał Zatoń ◽  
Wojciech Krawczyński
Keyword(s):  
Sedimentation Rate ◽  
Distal Portion ◽  
Taxonomic Composition ◽  
Soft Bottom ◽  
Holy Cross Mountains ◽  
Competition For Space ◽  
High Sedimentation ◽  
New Material ◽  
Three New Species ◽  
Hard Substrates

Tentaculitoid microconchid tubeworms from Devonian (uppermost Emsian-upper Givetian) deposits of the Holy Cross Mountains, Poland, include three new species from stratigraphically well-constrained lithological units:Polonoconchus skalensisn. gen. n. sp.,Palaeoconchus sanctacrucensisn. sp. andMicroconchus vinnin. sp. The microconchids inhabited fully marine environments during transgressive pulses, as is evidenced from facies and associated fossils.Polonoconchus skalensisn. gen. n. sp. andPalaeoconchus sanctacrucensisn. sp. inhabited secondary firm- to hard-substrates in deeper-water, soft-bottom environments. They developed planispiral, completely substrate-cemented tubes and planispiral tubes with elevated apertures, which is indicative of environments where sedimentation rate is low but competition for space (by overgrowth) may be high.Microconchus vinnin. sp., on the other hand, developed a helically coiled distal portion of the tube as a response to a high sedimentation rate. As the taxonomic composition of Devonian microconchids is poorly recognized at both regional and global scales, this new material contributes significantly to our understanding of the diversity of these extinct tube-dwelling encrusters.

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