Preliminary Assessment of the Stock Status of Atlantic Bonito (Sarda sarda) in the Northeastern Part of the Atlantic Ocean

2020 ◽  
Vol 60 (5) ◽  
pp. 732-741
Author(s):  
N. G. Petukhova
Keyword(s):  
Atlantic Ocean ◽  
Preliminary Assessment ◽  
Northeastern Part ◽  
Stock Status ◽  
Sarda Sarda

Performance of length-based data-limited methods in a multifleet context: application to small tunas, mackerels, and bonitos in the Atlantic Ocean

2019 ◽  
Vol 76 (4) ◽  
pp. 960-973 ◽  
Author(s):  
Maite Pons ◽  
Laurence Kell ◽  
Merrill B Rudd ◽  
Jason M Cope ◽  
Flávia Lucena Frédou
Keyword(s):  
Atlantic Ocean ◽  
Small Scale ◽  
Data Intensive ◽  
Small Scale Fisheries ◽  
Stock Status ◽  
Gear Selectivity ◽  
Starting Point ◽  
Stock Assessments ◽  
Spawning Potential Ratio ◽  
Length Data

Abstract Large scombrids, commercial tuna species, are regularly assessed and managed. However, most of the small scombrids, many mackerels and bonitos, lack accurate catch data to implement traditional stock assessments despite their economic importance in many small-scale fisheries. In this study, we analysed different approaches using length composition data from multiple fleets with different gear selectivity to assess small scombrids in the Atlantic Ocean. Using simulated populations, we compared two length-based methods (length-based spawning potential ratio and length-based integrated mixed effects ), under different length data grouping scenarios. We found that using length data from the fleet targeting the broadest range of sizes resulted in the lowest bias in spawning potential ratio of all options tested. Based on these results, we used biological and length data to estimate a quantitative proxy of current stock status for ten small scombrid stocks in the Atlantic Ocean. We found that some stocks are likely to be overfished, such as little tunny (Euthynnus alletteratus) in the Southeast Atlantic and wahoo (Acanthocybium solandri) in the Northwest Atlantic. This is a starting point in the estimation of stock status for these species, but should not be thought of as a replacement for other more data-intensive assessments.

scholarly journals Tetanops myopina Fallén, 1820, a psammophilous species of Otitinae (Diptera: Ulidiidae) found in a sandpit in the northeastern part of the Czech Republic/ Tetanops myopina Fallén, 1820, psamofilní druh čelnice z podčeledi Otitinae (Diptera: Ulidiidae) nalezený v pískovně v severovýchodní části České republiky

2015 ◽  
Vol 64 (1) ◽  
pp. 1-10
Author(s):  
Jindřich Roháček
Keyword(s):  
Czech Republic ◽  
Atlantic Ocean ◽  
Sand Dunes ◽  
The Czech Republic ◽  
Northeastern Part ◽  
Grid Mapping ◽  
Historical Origin ◽  
First Time

Abstract Tetanops myopina Fallén, 1820 (Diptera: Ulidiidae) is recorded from the Czech Republic for the first time, based on specimens found in the sandpit Závada near Hlučín (grid mapping code 6074). Because T. myopina is generally a maritime species, living on costal sand dunes of the Irish, North and Baltic Seas and partly the Atlantic Ocean (Ireland and Wales only), this surprising record is treated in detail with a description of the microhabitat and a discussion of the biology and biogeography of the species and the historical origin of this inland population

Procedure for Maximizing Phonological Information from Single-Word Responses

1984 ◽  
Vol 15 (4) ◽  
pp. 267-274 ◽  
Author(s):  
Harriet B. Klein
Keyword(s):  
Phonological Information ◽  
Single Word ◽  
Preliminary Assessment ◽  
Target Attainment ◽  
Phonological Processes ◽  
Step Procedure ◽  
Yield Information ◽  
Assessment Measure ◽  
Busy Clinician ◽  
Planning Intervention

Formal articulation test responses are often used by the busy clinician as a basis for planning intervention goals. This article describes a 6-step procedure for using efficiently the single-word responses elicited with an articulation test. This procedure involves the assessment of all consonants within a word rather than only test-target consonants. Responses are organized within a Model and Replica chart to yield information about an individual's (a) articulation ability, (b) frequency of target attainment, substitutions, and deletions, (c) variability in production, and (d) phonological processes. This procedure is recommended as a preliminary assessment measure. It is advised that more detailed analysis of continuous speech be undertaken in conjunction with early treatment sessions.

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