NDLI: Sources, loads and dispersion of dissolved inorganic nutrients in Paranaguá Bay

Content Provider	Springer Nature Link
Author	Mizerkowski, Byanka Damian Hesse, Karl J. Ladwig, rbert da Costa Machado, Eunice Rosa, Rodrigo Araujo, Taiana Koch, Daniela
Copyright Year	2012
Abstract	The present study focuses on the nutrient sources and gradients in Paranaguá Bay (Southern Brazil), where nutrient inputs are related to losses from fertilizer loading in Paranaguá harbour and the discharge of untreated waste water. The input of dissolved inorganic nutrients to the bay from the harbour and city, as well as from river and atmospheric deposition, amounted to 642 t year−1 DIN-N and 92 t year−1 PO4-P. Harbour losses accounted for 6 % of total DIN-N and 39 % of total PO4-P loads to the bay, whereas sewage inputs from the city were responsible for 21 % and 22 %, respectively. River inputs made up 68 % of DIN-N, mainly in the form of nitrate, and 35 % of PO4-P loads, while atmospheric wet deposition was estimated to be in the order of 5 % of DIN-N and 4 % of PO4-P loads. Local maxima in nutrient levels deriving from highly concentrated sewage discharge were observed in front of the harbour and city of Paranaguá, but the plumes are diluted rapidly due to short residence times. DIN concentrations are negatively correlated with salinity, indicating the importance of freshwater input as a main factor controlling nitrogen distribution. Elevated phosphate levels in the stratified middle section of the bay may result both from harbour emissions and phosphate remobilization from sediments. Generally lower DIN and PO4 concentrations during the warmer rainy season are supposed to be due to intensified assimilation rates especially in the middle section of the bay where dense phytoplankton blooms are observed. The bay as a whole cannot be classified as being seriously eutrophic, albeit eutrophication symptoms prevail in some restricted locations in front of Paranaguá harbour.
Starting Page	1409
Ending Page	1424
Page Count	16
File Format	PDF
ISSN	16167341
Journal	Deutsche Hydrografische Zeitschrift
Volume Number	62
Issue Number	10-12
e-ISSN	16167228
Language	English
Publisher	Springer-Verlag
Publisher Date	2012-09-05
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Nutrient enrichment Eutrophication Brazil River nutrient loads Wet deposition Harbour emissions Sewage discharge Environmental Monitoring/Analysis Meteorology/Climatology Geophysics/Geodesy Fluid- and Aerodynamics Oceanography
Content Type	Text
Resource Type	Article
Subject	Oceanography

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Spatial and temporal variability in nutrient concentrations in Liverpool Bay, a temperate latitude region of freshwater influence

Influence of wind and river discharge on the hypoxia in a shallow bay

A numerical study of horizontal dispersion in a macro tidal basin

Seasonal and inter-annual variability in alkalinity in Liverpool Bay (53.5° N, 3.5° W) and in major river inputs to the North Sea

Coastal dynamics off Northwest Iberia during a stormy winter period

Observed changes in pan-arctic cold-season minimum monthly river discharge

An operational model to simulate post-accidental radionuclide transfers in Toulon marine area: preliminary development

Mixing, hypersalinity and gradients in Hervey Bay, Australia

Interactions of river discharge and tidal modulation in a tropical estuary, NE Brazil

Sources, loads and dispersion of dissolved inorganic nutrients in Paranaguá Bay

Similar Documents

Spatial and temporal variability in nutrient concentrations in Liverpool Bay, a temperate latitude region of freshwater influence

Influence of wind and river discharge on the hypoxia in a shallow bay

A numerical study of horizontal dispersion in a macro tidal basin

Seasonal and inter-annual variability in alkalinity in Liverpool Bay (53.5° N, 3.5° W) and in major river inputs to the North Sea

Coastal dynamics off Northwest Iberia during a stormy winter period

Observed changes in pan-arctic cold-season minimum monthly river discharge

An operational model to simulate post-accidental radionuclide transfers in Toulon marine area: preliminary development

Mixing, hypersalinity and gradients in Hervey Bay, Australia

Interactions of river discharge and tidal modulation in a tropical estuary, NE Brazil

Sources, loads and dispersion of dissolved inorganic nutrients in Paranaguá Bay