Open Collections

UBC Institute of Fisheries Field Record B.C. 81-49a

All specimens taken as bycatch from the above shrimp trawls operated only at night between 19:00-07:00 hours. Trawls pulled by a 65' Gulf of Mexico shrimp boat with a 365 HP D343 Cat engine. Drag length varied from 3 to 12 hours depending on shrimp density. Most fish taken on or near the bottom although some caught as nets decended [descended] and ascended. Specimens are representitives [representatives] of 3 offshore communities which occurred in depths of 14-15, 20-25, & 32-40 fathoms. The substrate varied with depth. The most onshore community was associated with a mud and sand-mud bottom.

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Province/State:
Locality:40-70 miles offshore of the Guyanese Coast between 20 and 40 fathoms between the mouth of the Esquibo [Essequibo] and Orinoco Rivers
Country:Guyana
Catalogue number:B.C. 81-49a
Collector number:
Watershed:
Map:
Water:
Vegetation:
Bottom:Sand - mud to sand to sand and worn coral block
Cover:
Temperature:21-24 C surface
Shore:
Current:2-6 knots
Distance offshore:40-70 miles
Stream width:
Depth of capture:20-40 fathoms
Depth of water:20-40 fathoms
Collected by:Donald J. Furnell
Tide:
Date:29407
Method of capture:Twin 50' jib design Gulf of Mexico shrimp trawls
Original preserved:Freezing then 10% Formalin
Time:All during night hours
Continued on B.C. 81-49b, B.C. 81-49c, B.C. 81-49d, B.C. 81-49e, B.C. 81-49f, B.C. 81-49g, B.C. 81-49h; Lat: 8 30 - 9 15 N; Long: 57 15 - 58 30; Dates are 5-29 July 1980

UBC Institute of Fisheries Field Records

2013-07-31

Images provided for research and reference use only. Permission to publish, copy, or otherwise use these images must be obtained from Dr. Eric (Rick) Taylor <etaylor@zoology.ubc.ca>

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