Environmental assessment of sardine (Sardina pilchardus) purse seine fishery in Portugal with LCA methodology including biological impact categories

2013 ◽  
Vol 19 (2) ◽  
pp. 297-306 ◽  
Author(s):  
Cheila Almeida ◽  
Sofia Vaz ◽  
Henrique Cabral ◽  
Friederike Ziegler
Keyword(s):  
Environmental Assessment ◽  
Purse Seine ◽  
Impact Categories ◽  
Sardina Pilchardus ◽  
Lca Methodology ◽  
Biological Impact ◽  
Purse Seine Fishery

scholarly journals Species diversity and dominancy indexes in Izmir Bay (Aegean Sea) purse seine fishery

2020 ◽  
Vol 37 (4) ◽  
pp. 353-356
Author(s):  
Ahmet Mert Senbahar ◽  
Özlem Güleç ◽  
Zafer Tosunoglu
Keyword(s):  
Dominant Species ◽  
Diversity Index ◽  
Aegean Sea ◽  
Purse Seine ◽  
Total Biomass ◽  
Sardina Pilchardus ◽  
Izmir Bay ◽  
Bony Fishes ◽  
Sardinella Aurita ◽  
Purse Seine Fishery

To determine the diversity index values of species caught by purse seine, all samplings were carried out between September 2, 2017, and April 6, 2018 in Izmir Bay. As a result, a total of 17 fish species (Osteichthyes) belonging to 11 families and also 2 species from invertebrates (Cephalopoda and Arthropoda) were determined. Bony fishes and invertebrates consist of 99.9% and 0.1% of the total biomass, respectively. Sardina pilchardus was the most dominated species that occupied as 80.2% of the overall bony fishes followed by Engraulis encrasicolus (14.6%) and Sardinella aurita (1.5%). Diversity index values of species were found-1.026 by Shannon-Weaver and 0.63 by Simpsons, respectively. The highest dominancy was found for S. pilchardus with 71.1%. Overall final results indicate that the diversity of species in Izmir Bay purse seine fishery is very low and also S. pilchardus is the most over-dominant species.

scholarly journals Effects of Lunar Phases and Other Variables on CPUE of European Pilchard, Sardina pilchardus, Caught by Purse Seine in the Eastern Mediterranean

2021 ◽  
Vol 21 (06) ◽  
pp. 283-290
Author(s):  
Zafer Tosunoglu ◽  
Tevfik Ceyhan ◽  
Ozlem Gulec ◽  
Faik Ozan Duzbastilar ◽  
Muharrem Hakan Kaykac ◽  
...  
Keyword(s):  
Eastern Mediterranean ◽  
Aegean Sea ◽  
Purse Seine ◽  
Sardina Pilchardus ◽  
Lunar Phases ◽  
Pelagic Fishes ◽  
The Mean ◽  
The Impact ◽  
Fishing Area ◽  
Purse Seine Fishery

European pilchard Sardina pilchardus (Walbaum, 1792) is one of the most dominant small pelagic landed by purse seine in Turkey as well as Mediterranean. In this study, we aimed to identify relationships between the seasonally adjusted CPUE and changes of the sea surface temperature (SST), fishing area, moon phase, and light used in the purse seine fishery to understand the impact of changes on the CPUE of pelagic fishes, especially S. pilchardus, by a total of 214 operations in Izmir Bay, Aegean Sea. The effect of the parameters on the Sardine CPUE, expressed in terms of kg (haul day)–1, was examined by means of the Generalized Additive Modelling (GAMs) techniques. The CPUE values for S. pilchardus were between 0 – 16 800 kg (haul day)–1 and the mean CPUE was 1 844.3±176.6 kg (haul day)–1 . The smallest median was 441 kg (haul day)–1 for full moon and the differences between the CPUE values of lunar phases were statistically significant (p<0.05). Furthermore, there is a linear relationship between CPUE and SST. In conclusion, the CPUE varied under hydrographic variables mostly SST for sardine purse seine fishery in the Aegean Sea.

Spatial segregation by size of billfishes bycaught by the tuna purse-seine fishery in the Eastern Pacific Ocean

2021 ◽  
Vol 241 ◽  
pp. 106001
Author(s):  
Osman Crespo-Neto ◽  
Eric Díaz-Delgado ◽  
Tatiana A. Acosta-Pachón ◽  
Raúl O. Martínez-Rincón
Keyword(s):  
Pacific Ocean ◽  
Spatial Segregation ◽  
Eastern Pacific ◽  
Purse Seine ◽  
Eastern Pacific Ocean ◽  
Purse Seine Fishery

The Spanish purse-seine fishery targeting small pelagic species in the Bay of Biscay: Landings, discards and interactions with protected species

2021 ◽  
Vol 239 ◽  
pp. 105951
Author(s):  
Jon Ruiz ◽  
Maite Louzao ◽  
Iñaki Oyarzabal ◽  
Luis Arregi ◽  
Estanis Mugerza ◽  
...  
Keyword(s):  
Purse Seine ◽  
Bay Of Biscay ◽  
Protected Species ◽  
Pelagic Species ◽  
Purse Seine Fishery

scholarly journals Biological patterns of the Brazilian sardine in the purse seine fishery off Brazil

2019 ◽  
Vol 6 ◽  
Author(s):  
Rafael Schroeder ◽  
Angelica Petermann ◽  
Alberto Correia ◽  
Paulo Schwingel
Keyword(s):  
Purse Seine ◽  
Biological Patterns ◽  
Purse Seine Fishery

The purse-seine fishery for small pelagic fishes off the Madeira Archipelago

2019 ◽  
Vol 41 (4) ◽  
pp. 373-383
Author(s):  
R Tejerina ◽  
M Hermida ◽  
G Faria ◽  
J Delgado
Keyword(s):  
Purse Seine ◽  
Pelagic Fishes ◽  
Madeira Archipelago ◽  
Purse Seine Fishery
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