<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>We checked the spatial pattern of debris stranding at Praia de Santos (Brazil) in the first hour after the peak of high and low tide in summer and winter. We recorded and counted 20 types of debris (natural and anthropogenic) in 6 transects arranged in 3 zones along the beach (deposition, transport, and erosion). Canonical Correspondence Analysis (CCA) showed that buoyancy was an essential property in distinguishing debris stranding behaviours. The erosion zone, closer to the estuary showed that many mollusk shells, ropes and rocks, while plastics, styrofoam and fiber nylon were in the deposition zone. Throughout the estuary, we inspected the beach, identifying sections of origin and accumulation associated with the circulation system and currents. We propose the removal and recycling of debris from accumulation sites near highways and urban systems.</p>
</abstract>

We checked the spatial pattern of debris stranding at Praia de Santos (Brazil) in the first hour after the peak of high and low tide in summer and winter. We recorded and counted 20 types of debris (natural and anthropogenic) in 6 transects arranged in 3 zones along the beach (deposition, transport, and erosion). Canonical Correspondence Analysis (CCA) showed that buoyancy was an essential property in distinguishing debris stranding behaviours. The erosion zone, closer to the estuary showed that many mollusk shells, ropes and rocks, while plastics, styrofoam and fiber nylon were in the deposition zone. Throughout the estuary, we inspected the beach, identifying sections of origin and accumulation associated with the circulation system and currents. We propose the removal and recycling of debris from accumulation sites near highways and urban systems.

The Debris Distribution Model for Removal Planning of an Urbanized Estuarine Complex

Programa de Pós-graduação Segurança Pública

Quaestiones Geographicae

This work is licensed under the Creative Commons Attribution 3.0 Public License.

We checked the spatial pattern of debris stranding at Praia de Santos (Brazil) in the first hour after the peak of high and low tide in summer and winter. We...

Transect	Zonea	Length	Width	Distance to estuary
Transect	Zonea	[m]
T1	Deposition	1735	190	5000
T2	Deposition	1650	200	4430
T3	Transport	1050	225	3700
T4	Transport	1820	125	3000
T5	Erosion	1720	180	2250
T6	Erosion	1230	160	1290

Debris	T1	T2	T3	T4	T5	T6	Total
Shell	295	122	98	161	3630	11,786	16,092
Vegetation	159	77	216	273	311	4465	5501
Rigid plastic	526	271	101	147	175	440	1660
Echinoderms	47	175	123	267	355	138	1105
Non-rigid plastic	92	100	54	90	167	375	878
Stones	0	3	13	22	137	93	268
Wood	26	13	23	19	24	66	171
Cnidarian	7	0	129	1	0	1	138
Chordata	14	4	0	14	26	57	120
Styrofoam	8	27	21	14	6	18	94
Organic	21	4	7	15	15	22	84
Metal	2	2	3	9	35	21	72
Cigarette	10	9	2	6	7	32	66
Foam	30	1	0	4	22	5	62
Glass	3	2	1	3	13	21	43
Paper	11	0	5	0	5	9	30
Fabric	18	3	0	1	2	4	28
Nylon	6	6	0	2	3	4	21
Rubber	2	0	1	2	8	5	18
Rope	0	0	0	1	3	3	7
Total	1277	819	797	1051	4944	17,565	26,458

The Debris Distribution Model for Removal Planning of an Urbanized Estuarine Complex

Published Online: Mar 23, 2021

Page range: 97 - 107

Received: Oct 18, 2019

DOI: https://doi.org/10.2478/quageo-2021-0008

Keywords
beach hydrodynamics, marine waste, anthropic litter, stranded debris

© 2021 Walter Barrella et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 3.0 Public License.

Fig. 1

Fig. 2

Fig. 3

Fig. 4

Characteristics of the transects of the researched beach.

Numerical amount of debris recorded in transects.

The Debris Distribution Model for Removal Planning of an Urbanized Estuarine Complex

Published Online: Mar 23, 2021

Page range: 97 - 107

Received: Oct 18, 2019

DOI: https://doi.org/10.2478/quageo-2021-0008

Keywordsbeach hydrodynamics, marine waste, anthropic litter, stranded debris

© 2021 Walter Barrella et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 3.0 Public License.

Fig. 1

Fig. 2

Fig. 3

Fig. 4

Characteristics of the transects of the researched beach.

Numerical amount of debris recorded in transects.

Keywords
beach hydrodynamics, marine waste, anthropic litter, stranded debris