Preliminary Report Cruise No. II - Surveys of the Fish Resources on the Pacific Shelf Between Southern Mexico and Colombia - Part 1: Colombia - Costa Rica, 23 April - 20 May 1987













Table of Contents


CRUISE REPORTS "DR FRIDTJOF NANSEN"

NORAD - FAO/UNDP GLO 82/001

IMR, Bergen

The research programme SURVEYS OF THE FISH RESOURCES ON THE PACIFIC SHELF BETWEEN SOUTHERN MEXICO AND COLOMBIA is sponsored by The Norwegian Agency for Development Assistance (NORAD), The Food and Agriculture Organization of the United Nations (FAO), and the United Nations Development Programme (UNDP). The programme is being planned through the OLDEPESCA/FAO Working Group on Fisheries Research in the Region of Central America and Panama. Its execution is the responsibility of the Institute of Marine Research, Bergen in cooperation with FAO and national fisheries administrations.

The programme will comprise four coverages of the region. This preliminary cruise report describes the work and some of the findings of the first coverage in the waters of Colombia and the second in Panama and Costa Rica. Full reports will be issued after the completion of the programme.

This electronic document has been scanned using optical character recognition (OCR) software and careful manual recorrection. Even if the quality of digitalisation is high, the FAO declines all responsibility for any discrepancies that may exist between the present document and its original printed version.


Table of Contents


1. Introduction

2. Narrative

3. Hydrography

4. Fish distribution

5. Biomass estimates

6. Results from fishing experiments

7. Types of bottom

8. Fish biology

ANNEX 1 - DESCRIPTION OF TRAWL AND FISH TRAPS - APENDICE 1 - DESCRIPCION DE RED DE ARRASTRE Y TRAMPAS

ANNEX 2 - RECORD OF FISHING STATIONS, COLOMBIA - APENDICE 2 - REGISTRO DE ESTACIONES PESQUERAS, COLOMBIA

ANNEX 3 - RECORD OF FISHING STATIONS, PANAMA - APENDICE 3 - REGISTRO DE ESTACIONES PESQUERAS, PANAMA

ANNEX 4 - RECORD OF FISHING STATIONS, COSTA RICA - APENDICE 4 - REGISTRO DE ESTACIONES PESQUERAS, COSTA RICA

ANNEX 5 - POOLED LENGTH DISTRIBUTIONS OF MAIN SPECIES CAUGHT, COLOMBIA -APENDICE 5 - DISTRIBUCION TOTAL DE FREQUENCIAS DE LONGITUD DE LAS PRINCIPALES ESPECIES, CAPTURADAS, COLOMBIA

ANNEX 6 - POOLED LENGTH DISTRIBUTIONS OF MAIN SPECIES CAUGHT, PANAMA - APENDICE 6 - DISTRIBUCION TOTAL DE FREQUENCIAS DE LONGITUD DE LAS PRINCIPALES ESPECIES CAPTURADAS, PANAMA

ANNEX 7 - SAMPLES OF UNIDENTIFIED ECHO TRACES IN THE GULF OF NICOYA, COSTA RICA - APENDICE 7 - MUESTRA DE TRAZAS ACUSTICAS NO IDENTIFICADAS EN EL GOLFO DE NICOYA, COSTA RICA