Results 41 to 50 of about 695 (139)

Chave para identificação das espécies de bagres marinhos (Siluriformes, Ariidae) da costa brasileira

open access: yesBoletim do Instituto de Pesca, 2018
A identificação das espécies de bagres marinhos da famí­­lia Ariidae é problemática devido í­Â  presença de poucas caracterí­­sticas externas que permitam uma diagnose segura da espécie.
Alexandre P. Marceniuk
doaj  

Pertumbuhan dan Laju Eksploitasi Ikan Endemik Rasbora Tawarensis (Weber & De Beaufort, 1916) di Danau Laut Tawar, Aceh Tengah [Growth And Exploitation Rate Of Endemic Fish Rasbora Tawarensis (Weber And De Beaufort, 1916) At Laut Tawar Lake In Central Aceh] [PDF]

open access: yes, 2011
Rasbora tawarensis merupakan ikan endemik yang ditemukan di Danau Laut Tawar Kabupaten Aceh Tengah. Penelitian ini bertujuan untuk menentukan pertumbuhan, mortalitas dan laju eksploitasi ikan R. tawarensis.
Hasri, I. (Iwan)   +2 more
core  

ESTIMATES OF ANNUAL FOOD CONSUMPTION/BIOMASS RATIO (Q/B) FROM THE FISH FAUNA OF A MANGROVE ESTUARY IN NORTH BRAZIL [PDF]

open access: yes, 2013
Para contribuir para a construção de um modelo de balanço trófico, as estimativas das relações de consumo de alimentos por unidade de biomassa (Q/B) foram compiladas para 37 espécies de peixes do estuário do Curuçá selecionados no Norte do Brasil usando ...
Ferraz, Daniel   +2 more
core   +1 more source

Histopathological Changes in Estuarine Catfish: A Temporal Approach in a Marine Protected Area

open access: yesBrazilian Archives of Biology and Technology
The Cananéia-Iguape Estuarine-Lagoon Complex (CIELC) is an area of low anthropogenic impact; however, it is not completely isolated from human pressure, particularly in the northern sector.
Vinícius Coelho Goes   +2 more
doaj   +1 more source

Caracterizacao da ictiofauna demersal de duas areas do complexo estuarino de Paranagua, Parana / [PDF]

open access: yes, 2005
Orientador : Henry Louis SpachDissertacao (mestrado) - Universidade Federal do Parana, Setor de Ciencias Biologicas, Programa de Pos-Graduacao em Ecologia e Conservacao.
Queiroz, Guilherme Mac Laren Nogueira de
core   +1 more source

Caracterização da ictiofauna demersal de duas áreas do complexo estuarino de Paranaguá, Paraná, Brasil [PDF]

open access: yes, 2007
Mudanças temporais e espaciais na composição e estrutura das comunidades de peixes demersais foram analisadas nas Baías de Paranaguá e Laranjeiras, Complexo Estuarino de Paranaguá, Paraná, Brasil.
Queiroz, Guilherme MacLaren Nogueira de   +4 more
core   +1 more source

Which metal represents the greatest risk to freshwater ecosystem in Bohai Region of China? [PDF]

open access: yes, 2017
Metals discharged from industrial effluents, agricultural wastewater, and sewage runoff by rapid urbanization are of concern as contaminants of freshwater ecosystem because of their persistence and high toxicity to aquatic organisms. This study attempted
Jin, Xiaowei   +7 more
core   +1 more source

Diel variation in fish assemblages in tidal creeks in southern Brazil

open access: yesBrazilian Journal of Biology
Tidal creeks are strongly influenced by tides and are therefore exposed to large differences in salinity and depth daily. Here we compare fish assemblages in tidal creeks between day and night in two tidal creeks in southern Brazil. Monthly day and night,
JF. Oliveira-Neto   +3 more
doaj   +1 more source

Ingestion and selection of suprabenthic crustaceans by small-sized fishes in a lower saltmarsh system

open access: yesBrazilian Journal of Oceanography, 1996
This study was performed in the lower saltmarsh system of the Arrozal, in the Cananéia lagoon estuarine region (25º02'S - 47º56'W), Brazil. Suprabenthic fauna was surveyed Wlth a small sledge and fishes were captured with casting and set nets to analyse:
Yoko Wakabara   +2 more
doaj   +1 more source

Does the closed fishing season influence the ichthyofauna consumed by Larus dominicanus? [PDF]

open access: yes, 2017
Fish that are incidentally caught by shrimp trawling represent a predictable and abundant resource for feeding several bird species, especially for the gull Larus dominicanus.
Carvalho, Barbara Maichak de   +2 more
core   +2 more sources

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