Sentence examples for longline survey from inspiring English sources

This removal, called depredation, is economically costly to fishermen, presents risk of injury or mortality to whales, and could lead to unknown removals during the federal sablefish longline survey that contributes to estimation of the annual fishing quota.

Low whitetip reef shark abundances in our longline survey may also be due to gear selectivity (we used large hooks and baits not well-suited to catching whitetip reef sharks).

To improve the accuracy of biological data collected from large specimens and decrease survey-induced stress and mortalities during longline surveys, a portable landing sling was designed for use with shipboard hydraulic cranes.

Another study focusing on the Gulf of Mexico, using a mix of data from US pelagic longline surveys from the mid-1950s and observations from the late-1990s, estimatedeclineline inumbersrs in this location of 99.3% over this period.

Our habitat-stratified sampling design provided higher resolution information on shark habitat preferences at FFS than previous longline surveys.

We used longline surveys to quantify the shark assemblage at French Frigate Shoals (FFS) atoll from May to August 2009.

Comparison of our results with those of previous UVS studies conducted during summer within the PMNM (e.g. [3], [9]) suggests both methods introduce sampling bias but longline surveys provide a far more comprehensive picture of shark assemblage composition.

Only a single tiger shark was recorded by UVS methods throughout the NWHI [9], whereas we captured 45 tiger sharks (20% of all sharks caught) at FFS and previous longline surveys also found high abundances of tiger sharks at this location [25].

Galapagos, gray reef and tiger sharks were the numerically dominant species in our catches at FFS, and previous longline surveys conducted in Hawai'i between 1978 and 1980 captured a similar species assemblage and found relatively high abundances of Galapagos and gray reef sharks in the NHWI compared to the MHI [25], [35].

Compared to prior underwater visual survey estimates, longline methods more accurately represented species abundance and composition for the majority of shark species.

The survey was designed based on data from an experimental commercial shark longline fishery that operated in the SCB during 1988–1991.