scholarly journals Identifying Métiers Using Landings Profiles: An Octopus-Driven Multi-Gear Coastal Fleet

2021 ◽  
Vol 9 (9) ◽  
pp. 1022
Author(s):  
Monika J. Szynaka ◽  
Karim Erzini ◽  
Jorge M. S. Gonçalves ◽  
Aida Campos
Keyword(s):  
Clustering Analysis ◽  
Limited Data ◽  
Target Species ◽  
Fishing Gears ◽  
Initial Characterization ◽  
Management Advice ◽  
South Portugal

The multi-gear coastal vessels in the Algarve (South Portugal) own licenses for various fishing gears. However, it is generally uncertain what gears they use, which is problematic as each individual gear is responsible for unique impacts on the resources and the environment. In this study, landing profiles identified for the multi-gear coastal fleet (2012–2016) were used as support in defining potential métiers using k-mean clustering analysis (CLARA) along with information from past studies on métiers. The results showed that more than 50% of the vessels were engaged in the octopus fishery year-round, using traps, while a small percentage (~13%) were entirely dedicated to clam dredging. In general, gillnets (21%) were used to target monkfish, hake and bastard soles, while trammel nets (6%) were used to target cuttlefish, with some vessels alternating the fishing gears (either seasonally or annually) according to target species. The method for the initial characterization of this fleet’s métiers and its efficiency with limited data is discussed, as well as the utility of this segmentation in support of management advice.

scholarly journals Identification and initial characterization of POLIII-driven transcripts by msRNA-sequencing.

RNA Biology ◽  
2021 ◽  
Author(s):  
Peter Zorn ◽  
Danny Misiak ◽  
Michael Gekle ◽  
Marcel Köhn
Keyword(s):  
Initial Characterization

Isolation and initial characterization of a vasa homolog in Cynops cyanurus

2021 ◽  
Vol 40 ◽  
pp. 119180
Author(s):  
Yinjiao Zhao ◽  
Pingfan Wei ◽  
Dan Wang ◽  
Wenrui Han ◽  
Hanyu Mao ◽  
...  
Keyword(s):  
Initial Characterization

scholarly journals Pots as alternative and sustainable fishing gears in the Mediterranean Sea: an overview

2021 ◽  
Author(s):  
Andrea Petetta ◽  
Massimo Virgili ◽  
Stefano Guicciardi ◽  
Alessandro Lucchetti
Keyword(s):  
Mediterranean Sea ◽  
Early Stage ◽  
Spiny Lobster ◽  
Mesh Size ◽  
Octopus Vulgaris ◽  
Target Species ◽  
Factors Affecting ◽  
Fishing Gears ◽  
Pros And Cons ◽  
The Mediterranean

AbstractStock overexploitation, bycatch, discards and gear impacts on the environment are outstanding issues for Mediterranean fisheries. The adoption of alternative fishing gears is an appealing solution to ensure a more sustainable exploitation of resources. We discuss the pros and cons of pots as alternative gears by reviewing their main designs, spatial distribution and target species in the Mediterranean basin. We assessed the technical factors affecting the catch efficiency of the different pot designs for four target species: spiny lobster, Palinurus elephas; Norway lobster, Nephrops norvegicus; common octopus, Octopus vulgaris and pandalid shrimps, Plesionika spp. We found that pot volume is important to catch Octopus; mesh size to catch Nephrops and Plesionika; entrance surface to catch Octopus, Nephrops and Plesionika; pot shape/colour and entrance shape/position to catch Octopus and Plesionika; and bait type to catch Octopus and Nephrops. The literature review shows that pot fisheries have several considerable advantages over conventional gears, especially in terms of discards, bycatch, seabed impacts (particularly compared with bottom trawls and passive set nets), size and species selectivity, gear depredation, catch quality and gear cost, besides saving time and labour. Disadvantages hampering their wider diffusion include ghost fishing, a low catch of finfish species, the narrow range of species targeted by each pot design and the current early stage of research. These data make a clear case for using pots as alternative gears to traditional ones in the Mediterranean Sea in some areas and seasons to catch certain target species.

scholarly journals Purification and initial characterization of the proteasome from the higher plant Spinacia oleracea.

1992 ◽  
Vol 267 (30) ◽  
pp. 21678-21684 ◽  
Author(s):  
M Ozaki ◽  
K Fujinami ◽  
K Tanaka ◽  
Y Amemiya ◽  
T Sato ◽  
...  
Keyword(s):  
Spinacia Oleracea ◽  
Higher Plant ◽  
Initial Characterization
Sign in / Sign up

Export Citation Format

Share Document