BERDS > Find > Watershed (Monkey River)

29 Jul 2010


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BERDS > FIND > WATERSHED

Watershed:	Monkey River
Region:	Southeastern EDU
Size: (area)	Acres: approx. 319,028 Hectares: approx. 129,107
Size (perimeter):	approx. 237 km
Protected Areas within Watershed:	- BFREE Private Reserve (Candidate) - Bladen Nature Reserve - Chiquibul NP National Park - Cockscomb Basin Wildlife Sanctuary - Deep River Forest Reserve - Mango Creek (4) Forest Reserve - Maya Mountain Forest Reserve - Paynes Creek National Park - Port Honduras (General Use) Marine Reserve - Swasey Bladen Forest Reserve - Unknown (Pt II) Private Reserve (Candidate) - Unknown (Pt III) Private Reserve (Candidate) - Victoria Peak Natural Monument

.:. Monkey River .:.
map

Topography:	Largest of eastern catchments comprising the western Cockscomb Basin and lateral discontinuity between metamorphic and sedimentary blocks. Relative relief is some 800m with a majority of steep to very steep slopes over 25 degrees with few medium slopes and 35% planar coastal areas.
Geology & Soils:	The Swasey drains mostly ancient igneous rocks and metasediments with acid leached soils as does the Bladen, which runs along and behind the Jurassic limestone of the coastal fringing hills without receiving much runoff from them.
Land Use:	Land use is forestry with some rolling hills cleared for cattle and banana and mango and citrus across the lower slopes and long channels and in valley bottoms. Milpa clearing is common along medium slopes. Total agriculture is 2,769 ha with 76 ha urban.
Climate:	Mostly the whole catchment is in the 2500-3000mm belt.
Hydrology:	Two distinctly different tributary catchments, the extremely dense drainage network of multiple, dendritic tributaries of the Swasey branch and the trellised asymmetrical network of the Bladen Branch, coalesce at the edge of the relatively narrow coastal plain to form the meandering Monkey River. Bladen Branch discharges of 16-20 m³/s have been recorded for the average annual daily flows of 1.2-1.8m depth and an annual stage range between a low flow of 0.6m and high flow of 4.6m. Similar discharges were recorded for the Swasey Branch with a recorded annual stage range from 1.1 to 2.2m. The combined Monkey River flow is expected to be a daily average of around 35-40 m³/s. Drainage area of 1,275.4 km².
Water Quality:	No data is available. Background chemistry will probably reflect the siliceous rocks with low hardness and alkalinity and a largely neutral pH. However, karstic conditions on the Bladen Branch could result in elevated hardness and alkalinity during low flows.
Sources of Pollution:	Non-point agrochemical and organic pollutants from return runoff from irrigation and banana drainage, coupled with periodic flooding of the Swasey. Non-point microbial and organic contaminants might be present from cattle rearing.
Higk Risk Zones:	Swasey Branch; Swasey Stopper Fall to logans Bank; Valley bottom and coastal plain +/- 2Km
Reasons for Contamination:	Banana plantations (particularly Cowpen area)
Contaminants:	Fertilizers, Pesticides, Alum, Organic Material
Gauging Stations:	- Bladen Bridge Station - Swasey Bridge Station
Source: NARMAP 19110. Environmental water quality monitoring report. Final Report and Annexes. Department of the Environment, Belize.

Associated Resources:
Documents - Publications
Profile	Format	Title	File Size
		Diet and Activity in Black Howler Monkeys (Alouatta pigra) in Southern Belize: Does Degree of Frugivory Influence Activity Level?	[ 348.5 Kb ]
		Observed Case of Infanticide Committed by a Resident Male Central American Black Howler Monkey (Alouatta pigra).	[ 61.9 Kb ]
		Population reduction and social disorganization in Alouatta pigra following a hurricane	[ 2.3 Mb ]
		Population, Group, and Range Size and Structure in Black Howler Monkeys (A. pigra) in Southern Belize.	[ 640.4 Kb ]
		The Effect of Hurricane Iris on the Food Supply of Black Howlers (Alouatta pigra) in Southern Belize.	[ 97.5 Kb ]
		The Short Term Effects of a Hurricane on the Diet and Activity of Black Howlers (Alouatta pigra) in Monkey River, Belize.	[ 197.4 Kb ]
Documents - Reports
Profile	Format	Title	File Size
		Adult Harpy Eagle Spotted in the Bladen Nature Reserve	[ 511.6 Kb ]
		Doyle's Delight, the 2004 Expedition	[ 3.1 Mb ]
		Field Report for the 1995 Season of the Maya Mountains Archaeological Project (MMAP)	[ 480.7 Kb ]
		Monkey River Special Development Area, Toledo District, Biodiversity Study	[ 14.4 Mb ]
		Progress Report of the 1999 Season of the Maya Mountains Archaeological Project (MMAP)	[ 2.3 Mb ]
		Summary Report of the 1997 Season of the Maya Mountains Archaeological Project (MMAP)	[ 661.1 Kb ]
		The Maya Mountains Archaeological Project (MMAP): Field report of the 2000 Season	[ 538.7 Kb ]
		The Maya Mountains Archaeological Project (MMAP); a preliminary report on the 1992 season	[ 539.4 Kb ]
		The Maya Mountains Archaeological Project (MMAP); a preliminary report on the 1994 season	[ 2.3 Mb ]
People
Profile		Name
		Marlin, Jacob

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