Recolha de camarões reprodutores vivos da espécie Fenneropenaeus indicus da pesca de arrasto semi-industrial na Baía de Maputo

The collection of wild breeders of the Indian white prawn Fenneropenaeus indicus from two semi-industrial trawlers fishing in Maputo Bay is assessed for the period between August and November 1993. The daily mean catch (12-21 prawns dayˉ¹) increased until October but monthly yields were not significantly different (P>0.05). The monthly mean mortality ranged between 8% and 20% and was similar for males and females. More than 70% of the catch comprised small (grade B1: 20-39 g) and medium size (grade B2: 40-59 g) prawns. While males were exclusively of grade B1 (99%), the females were predominantly of grades B2 and B3 (60-80 g). The collection of larger breeders (grade B4: >80 g) was low and represented only 1% of total catches and a maximum of 3% of females. The net profit of breeders collection increased with size (grade) of prawns, and represented a maximum yield of 114% for grade B3. The added value of live prawns exceeded 450% of the cost to the fisherman, but decreased with size of breeders. It is considered that the semi-industrial trawling fishery operating in Maputo Bay has potential for supplying wild breeders of the Indian white prawn for aquaculture. This activity can also contribute to value adding of part of the catch traditionally destined for human consumption.

Saved in:
Bibliographic Details
Main Authors: Ribeiro, F.A.L.T., Mbula, M., Uetimane, A.E.
Format: article biblioteca
Language:Portuguese
Published: 2002
Subjects:Fisheries, Fenneropenaeus indicus, white prawns, potential yield, catch/effort, shrimp fisheries, mortality, stock assessment, fishery resources, Maputo Bay, Mozambique,
Online Access:http://hdl.handle.net/1834/32728
Tags: Add Tag
No Tags, Be the first to tag this record!
id dig-aquadocs-1834-32728
record_format koha
spelling dig-aquadocs-1834-327282021-07-10T02:06:31Z Recolha de camarões reprodutores vivos da espécie Fenneropenaeus indicus da pesca de arrasto semi-industrial na Baía de Maputo Ribeiro, F.A.L.T. Mbula, M. Uetimane, A.E. Fisheries Fenneropenaeus indicus white prawns potential yield catch/effort shrimp fisheries mortality stock assessment fishery resources Maputo Bay Mozambique The collection of wild breeders of the Indian white prawn Fenneropenaeus indicus from two semi-industrial trawlers fishing in Maputo Bay is assessed for the period between August and November 1993. The daily mean catch (12-21 prawns dayˉ¹) increased until October but monthly yields were not significantly different (P>0.05). The monthly mean mortality ranged between 8% and 20% and was similar for males and females. More than 70% of the catch comprised small (grade B1: 20-39 g) and medium size (grade B2: 40-59 g) prawns. While males were exclusively of grade B1 (99%), the females were predominantly of grades B2 and B3 (60-80 g). The collection of larger breeders (grade B4: >80 g) was low and represented only 1% of total catches and a maximum of 3% of females. The net profit of breeders collection increased with size (grade) of prawns, and represented a maximum yield of 114% for grade B3. The added value of live prawns exceeded 450% of the cost to the fisherman, but decreased with size of breeders. It is considered that the semi-industrial trawling fishery operating in Maputo Bay has potential for supplying wild breeders of the Indian white prawn for aquaculture. This activity can also contribute to value adding of part of the catch traditionally destined for human consumption. 2021-06-24T17:24:44Z 2021-06-24T17:24:44Z 2002 article http://hdl.handle.net/1834/32728 pt application/pdf application/pdf 29-49 http://aquaticcommons.org/id/eprint/17038 12051 2015-05-18 18:51:47 17038 Instituto de Investigação Pesqueira, Mozambique
institution UNESCO
collection DSpace
country Francia
countrycode FR
component Bibliográfico
access En linea
databasecode dig-aquadocs
tag biblioteca
region Europa del Oeste
libraryname Repositorio AQUADOCS
language Portuguese
topic Fisheries
Fenneropenaeus indicus
white prawns
potential yield
catch/effort
shrimp fisheries
mortality
stock assessment
fishery resources
Maputo Bay
Mozambique
Fisheries
Fenneropenaeus indicus
white prawns
potential yield
catch/effort
shrimp fisheries
mortality
stock assessment
fishery resources
Maputo Bay
Mozambique
spellingShingle Fisheries
Fenneropenaeus indicus
white prawns
potential yield
catch/effort
shrimp fisheries
mortality
stock assessment
fishery resources
Maputo Bay
Mozambique
Fisheries
Fenneropenaeus indicus
white prawns
potential yield
catch/effort
shrimp fisheries
mortality
stock assessment
fishery resources
Maputo Bay
Mozambique
Ribeiro, F.A.L.T.
Mbula, M.
Uetimane, A.E.
Recolha de camarões reprodutores vivos da espécie Fenneropenaeus indicus da pesca de arrasto semi-industrial na Baía de Maputo
description The collection of wild breeders of the Indian white prawn Fenneropenaeus indicus from two semi-industrial trawlers fishing in Maputo Bay is assessed for the period between August and November 1993. The daily mean catch (12-21 prawns dayˉ¹) increased until October but monthly yields were not significantly different (P>0.05). The monthly mean mortality ranged between 8% and 20% and was similar for males and females. More than 70% of the catch comprised small (grade B1: 20-39 g) and medium size (grade B2: 40-59 g) prawns. While males were exclusively of grade B1 (99%), the females were predominantly of grades B2 and B3 (60-80 g). The collection of larger breeders (grade B4: >80 g) was low and represented only 1% of total catches and a maximum of 3% of females. The net profit of breeders collection increased with size (grade) of prawns, and represented a maximum yield of 114% for grade B3. The added value of live prawns exceeded 450% of the cost to the fisherman, but decreased with size of breeders. It is considered that the semi-industrial trawling fishery operating in Maputo Bay has potential for supplying wild breeders of the Indian white prawn for aquaculture. This activity can also contribute to value adding of part of the catch traditionally destined for human consumption.
format article
topic_facet Fisheries
Fenneropenaeus indicus
white prawns
potential yield
catch/effort
shrimp fisheries
mortality
stock assessment
fishery resources
Maputo Bay
Mozambique
author Ribeiro, F.A.L.T.
Mbula, M.
Uetimane, A.E.
author_facet Ribeiro, F.A.L.T.
Mbula, M.
Uetimane, A.E.
author_sort Ribeiro, F.A.L.T.
title Recolha de camarões reprodutores vivos da espécie Fenneropenaeus indicus da pesca de arrasto semi-industrial na Baía de Maputo
title_short Recolha de camarões reprodutores vivos da espécie Fenneropenaeus indicus da pesca de arrasto semi-industrial na Baía de Maputo
title_full Recolha de camarões reprodutores vivos da espécie Fenneropenaeus indicus da pesca de arrasto semi-industrial na Baía de Maputo
title_fullStr Recolha de camarões reprodutores vivos da espécie Fenneropenaeus indicus da pesca de arrasto semi-industrial na Baía de Maputo
title_full_unstemmed Recolha de camarões reprodutores vivos da espécie Fenneropenaeus indicus da pesca de arrasto semi-industrial na Baía de Maputo
title_sort recolha de camarões reprodutores vivos da espécie fenneropenaeus indicus da pesca de arrasto semi-industrial na baía de maputo
publishDate 2002
url http://hdl.handle.net/1834/32728
work_keys_str_mv AT ribeirofalt recolhadecamaroesreprodutoresvivosdaespeciefenneropenaeusindicusdapescadearrastosemiindustrialnabaiademaputo
AT mbulam recolhadecamaroesreprodutoresvivosdaespeciefenneropenaeusindicusdapescadearrastosemiindustrialnabaiademaputo
AT uetimaneae recolhadecamaroesreprodutoresvivosdaespeciefenneropenaeusindicusdapescadearrastosemiindustrialnabaiademaputo
_version_ 1756078997716860928