HydroBASINS lev08 watershed · #2080344710

Bassin de Pissa

A watershed (drainage basin) is not a body of water — it is the land area where rainfall converges towards a single river that eventually reaches the sea (or an endorheic basin). Boundaries follow ridgelines.

Crosses 4 administrative regions : Brodnica, Działdowo, Nowe Miasto, Rypin

10% lakePfafstetter: 24241066

Sub-basin area

345,6km²

Upstream area

345,6km²

Discharge

2,02m³/s

Mean elev.

130m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Drwęca391 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

4 dept-equivalent regions (GADM L2)

Brodnica
Kujawsko-Pomorskie · Poland
291.2 km²
83.9% of basin
Działdowo
Warmińsko-Mazurskie · Poland
53.9 km²
15.5% of basin
Rypin
Kujawsko-Pomorskie · Poland
1.5 km²
0.4% of basin
Nowe Miasto
Warmińsko-Mazurskie · Poland
0.5 km²
0.1% of basin

13 intersecting protected areas

Górznieńsko-Lidzbarski Park Krajobrazowy
IUCN V
Landscape Park
163.66 km² overlap
Ostoja Lidzbarska
IUCN Not Reported
Site of Community Importance (Habitats Directive)
70.91 km² overlap
Doliny Drwęcy
IUCN Not Assigned
Protected Landscape Area
26.86 km² overlap
Bagienna Dolina Drwęcy
IUCN Not Reported
Special Protection Area (Birds Directive)
11.25 km² overlap
Brodnicki Park Krajobrazowy
IUCN V
Landscape Park
4.62 km² overlap
Otuliny Welskiego Parku Krajobrazowego - Słup
IUCN Not Assigned
Protected Landscape Area
4.52 km² overlap
Dolina Drwęcy
IUCN Not Reported
Site of Community Importance (Habitats Directive)
0.59 km² overlap
Szumny Zdrój im. Kazimierza Sulisławskiego
IUCN IV
Nature Reserve
0.37 km² overlap
Jar Brynicy
IUCN IV
Nature Reserve
0.28 km² overlap

4 more protected areassorted by overlap area

Jar Brynicy
IUCN IV
Nature Reserve
0.28 km² overlap
Czarny Bryńsk
IUCN IV
Nature Reserve
0.13 km² overlap
Rzeka Drwęca
IUCN IV
Nature Reserve
0.07 km² overlap
Ostrowy nad Brynicą
IUCN IV
Nature Reserve
0.02 km² overlap

Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.

Species present

987 distinct species · 13 493 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 16 species (selected proportionally per kingdom among those with at least one documented interaction here) to keep the graph readable. Hover for details, click to explore the full ecosystem of a species.

ℹ️ The territory contains many more species than displayed and all their documented interactions: the graph is intentionally the structural skeleton (top-N species by composite local score, edges filtered by Serrano 2009 disparity filter α=0.2).

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Bassin de Pissa : 13 espèces reliées par 29 interactions GloBI sur 4 types (connectance 21.3%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées

Interactions affichées

Connectance

0.213

Patrimoniales

Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Hydroclimate (BasinATLAS lev08)

Mean T°

7,3°C

Annual rain

588mm

Moisture idx (CMI)

-0,16

Runoff

186mm/an

PET

704mm

AET

496mm

Mean slope

1,5°

Water table

165cm

Forest

36%

Crops

47%

Urban

Protected

49%

HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)