Realm: Marine
Climate: Temperate
Biome: Temperate Shelf and seas ecoregions Central latitude: 31.764041
Central longitude: 34.503247
Duration: 8 years, from 2008 to 2015
Climate: Temperate
Biome: Temperate Shelf and seas ecoregions Central latitude: 31.764041
Central longitude: 34.503247
Duration: 8 years, from 2008 to 2015
87984 records
151 distinct species
Across the time series Nemipterus randalli is the most frequently occurring speciesMethods
The sampled site was off Ashdod port, Israel, where trawlers who ply the southern fishing grounds dock (31°45.83?N; 34°30.30?E; Fig. 1). Water temperatures ranged from ca. 17 to 31 °C and salinity from 38.9 to 39.7 (Gertman et al. 2013). Fish were landed by a commercial 240 hp F/V bottom trawler. Trawl net dimensions were 20 m long (from opening to cod-end), vertical opening was about 2 m, horizontal opening was about 12 m and the diamond mesh size was 42 mm at the cod-end. Tow duration was 90 min, measured from the point of optimal net opening to the moment when speed was reduced prior to raising the net. The average trawl speed was 2.8 knots and each haul covered an estimated area of 90,000 m2. The seabed at all trawled sites consisted of sand with a silt/clay fraction. A total of 15 cruises (120 trawl tows) on typical inshore trawling grounds were carried out between April 2008 and January 2012 (Table 1). Each cruise consisted of eight tows, which were performed at 20 m and 40 m, an important depth range for Israeli fishing (including trawling). Each depth was sampled twice during daytime and twice at night. The entire catch was refrigerated and transported to the Ichthyological Laboratory of Tel Aviv University, where it was sorted, identified, measured to the nearest 0.1 cm and weighed to the nearest 0.1 g.Citation(s)
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