Gunnislake Fish Counter. Annual Report 1999


Autoria(s): Environment Agency South West Region
Data(s)

1999

Resumo

This is the Gunnislake Fish Counter, Annual Report 1999 produced by the Environment Agency South West Region on March 2000. The report presents the daily upstream counts of migratory salmonids recorded at Gunnislake Weir fish counting station (SX 435 713) situated on the River Tamar in 1999. The counter data contained within this report covers the period of the commercial migratory salmonid net buy-back scheme and the implementation of the National Spring Salmon Byelaws. The fish counter at Gunnislake is a resistivity based system (Logie 2100A – Aquantic limited) and is installed in the fish pass on the Cornish bank of the River Tamar at the head of the tide. The minimum salmon count for 1999 was 2691. The run pattern observed for salmon and sea trout in 1999 was generally consistent with that of previous years. However, the total combined annual count of salmon and sea trout migrating upstream on the River Tamar in 1999 was 25% higher than the 5 year average (1994 - 1998).

Formato

application/pdf

Identificador

http://aquaticcommons.org/10904/1/05-Gunnislake_Fish_Counter._Annual_Report_1999.pdf

Environment Agency South West Region (1999) Gunnislake Fish Counter. Annual Report 1999. Cornwall, UK, Environment Agency South West Region, 31pp.

Idioma(s)

en

Publicador

Environment Agency South West Region

Relação

http://aquaticcommons.org/10904/

Palavras-Chave #Fisheries #Limnology #Management
Tipo

Monograph or Serial Issue

NonPeerReviewed