FN Archimer Export Format
PT J
TI Resolution of biodiversity and assemblage structure in demersal fisheries surveys: the role of tow duration
BT 
AF MORIARTY, M.
   SELL, A. F.
   TRENKEL, Verena
   LYNAM, C. P.
   BURNS, F.
   CLARKE, E. D.
   GREENSTREET, S. P. R.
   MCGONIGLE, C.
AS 1:1,2;2:3;3:4;4:5;5:1;6:1;7:1;8:2;
FF 1:;2:;3:PDG-RBE-EMH;4:;5:;6:;7:;8:;
C1 Marine Scotland Sci, 375 Victoria Rd, Aberdeen AB11 9DB, Scotland.
   Ulster Univ, Environm Sci Res Inst, Cromore Rd, Coleraine BT52 1SA, Londonderry, North Ireland.
   Thunen Inst Sea Fisheries, Palmaille 9, D-22767 Hamburg, Germany.
   IFREMER, Rue Ile dYeu,BP 21105, F-44311 Nantes 03, France.
   CEFAS, Pakefield Rd, Lowestoft NR33 0HT, Suffolk, England.
C2 MARINE SCOTLAND SCI, UK
   UNIV ULSTER, UK
   THUNEN INST SEA FISHERIES, GERMANY
   IFREMER, FRANCE
   CEFAS, UK
SI NANTES
SE PDG-RBE-EMH
IN WOS Ifremer jusqu'en 2018
   copubli-europe
IF 3.367
TC 7
UR https://archimer.ifremer.fr/doc/00439/55028/60477.pdf
LA English
DT Article
CR IBTS INTERNATIONAL BOTTOM TRAWL SURVEY (IBTS),
DE ;abundance;biomass;body size;fisheries independent survey;IBTS;International Bottom Trawl Survey;linear mixed model;North Sea;species diversity
AB An experiment during a fisheries independent survey in the North Sea was conducted to test whether sampling effort could be reduced without a significant loss in data precision. To examine potential effects of reducing tow duration from the standard 30 min to a proposed 15 min estimates of species encounter rates, species richness, and estimates of abundance, biomass, and body size were analysed. Results show species richness estimates are lower in the short tow category. While biomass and abundance at length and body size are significantly affected by the change in tow duration, estimates of Large Fish Indicator, the Typical length and Mean-max length are not significantly affected by the regime change. The results presented here suggest that a reduction of tow duration did not optimize the resolution of biodiversity, and it may affect other survey objectives, such as, providing estimates of abundance or biomass for assessment of commercial species. 
PY 2018
PD SEP
SO Ices Journal Of Marine Science
SN 1054-3139
PU Oxford Univ Press
VL 75
IS 5
UT 000448251200017
BP 1672
EP 1681
DI 10.1093/icesjms/fsy050
ID 55028
ER

EF