Visual Surveys
視覚調査の紹介

視覚調査とは何ですか？

Visual Surveys 視覚調査 - Recommendations are made concerning future adjustments and surveys for systems with two Nerkids that cannot always be readily distinguished in visual surveys. ^[1] Thirty-two individuals were tracked for 498 days over two consecutive spawning seasons in 2017–2018 and visual surveys were conducted monthly to estimate aggregation sizes. ^[2] Spotlighting may be more versatile as it can be used in a greater range of ambient temperatures, but thermal cameras are more accurate than visual surveys at low temperatures, and can be used to benchmark spotlight surveys. ^[3] We used visual surveys, environmental DNA, and Atlas data to document the presence of Blanding’s Turtles in wetlands in Ottawa, Ontario, Canada. ^[4] We also report that visual surveys of fruits in the field are found to be accurate assessments of the presence and potential impact of granivores. ^[5] Effective research, conservation and risk-reduction action requires near realtime knowledge of whale distribution measured using various methods including visual surveys from vessels or planes or acoustic surveys from autonomous platforms. ^[6] The tool accurately identified boreal chorus frogs, even when they vocalized in heavily overlapping choruses and identified variable harlequin frog vocalizations at a field site where it had been very rarely encountered in visual surveys. ^[7] Monitoring of marine protected areas (MPAs) is critical for marine ecosystem management, yet current protocols rely on SCUBA-based visual surveys that are costly and time consuming, limiting their scope and effectiveness. ^[8] Thus, bibliographical, documentary and audiovisual surveys were carried out. ^[9] The study used survey questionnaires and direct interviews in the field, followed by identification of industrial locations, visual surveys in the industry and documentation taking in the field. ^[10] Cones from longleaf pine are counted each spring using visual surveys that follow a standard protocol. ^[11] Visual surveys were conducted to spatially contextualize the narratives from the participants. ^[12] Shoreline surveys for the sandy beach (25 m x 7 m plot) and beach forest (25 cm x 6 cm), as well as visual surveys for mangroves (20 m x 4 m; 2 plots), were employed, repeated for 9 times within 17 days. ^[13] The data were obtained by visual surveys using field CB counts in the summer of 2019 in the city of Qazvin, Iran. ^[14] Environmental DNA (eDNA) technologies offer sensitive and non-invasive genetic alternatives to trapping and visual surveys and are increasingly employed for the detection of aquatic and semi-aquatic reptiles. ^[15] During several campaigns, visual surveys, geophysical surveys, geoarchaeological surveys and archaeological excavations have been carried out, both in the form of trenches and in an open area, which have allowed us to begin to know this phase of this site. ^[16] bicolor abundance, we used visual surveys, sweep netting, and hornet traps in four known ranges in northern and central Taiwan from 2016 to 2020. ^[17] Visual surveys and suction sampling have been used in previous studies, but in the Great Bay Estuary, New Hampshire, they are less effective, and so little is known about the habitats occupied by juvenile horseshoe crabs in this area. ^[18] On-site eDNA detection of mud snails resulted in a 10% increase in positive sites (16/30 = 53% positive) relative to visual surveys (13/30 = 43% positive). ^[19] Visual surveys and mark-recapture analysis documented their repopulation of the area, with 100–120 whales using the fjord system in recent years, as well as the establishment of a seasonally resident population with annual return rates higher than 70%. ^[20] We measured species richness via visual surveys on line transects within 42 fragments of dry deciduous forest at the Ambanjabe field site in Ankarafantsika National Park, Madagascar. ^[21] Results from linear models showed significant seasonal and location differences in estimated plastic abundance for trawl and visual surveys in Nusa Penida and Komodo. ^[22] A combination of visual surveys, heavy weight deflectometer tests, and ground-penetrating radar scans provide the essential structural capacity data for carrying out the analyses. ^[23] Long-distance migrations by marine fish have long fascinated scientists, but are difficult to track by visual surveys. ^[24] Using the search engines Scopus™ and Google Scholar™, 119 publications were identified that used ROVs for visual surveys of fish assemblages. ^[25] Passive acoustic monitoring is a powerful tool for both conservation and fishery science that should be coupled with visual surveys in order to improve the resolution of fish biodiversity assessments. ^[26] In 2016 and 2017, visual surveys and yellow sticky card traps were used to estimate numbers of arthropod natural enemies and herbivores in each treatment. ^[27] From June to August 2012, we conducted over 500 h of visual surveys from Cormorant Island, British Columbia, to determine behaviour and habitat use patterns of nearby cetaceans. ^[28] ANPP results were similar to visual surveys, with significantly higher C4 graminoid ANPP in spring than autumn burns and significantly lower forb and C3 graminoid ANPP in spring than autumn burns. ^[29] Metabarcoding of eDNA provides higher resolution data than visual surveys, aiding in assessments of ecosystem health. ^[30] We performed the first harmonized assessment of seafloor litter (trawl and visual surveys) in six countries of the Adriatic-Ionian macroregion. ^[31] We also found that it reliably identifies rare DNA, has great utility for surveying roosts in temperate and tropical regions, and detects more bat species than do visual surveys. ^[32] The results of visual surveys and assessment of pavement distresses are defined by the pavement condition index and the pavement development prognosis, which declares the ability of the airfield construction to meet safe air traffic requirements. ^[33] Significant correlations of floating macro litter density with wind force and sea state were found, thus strengthening the need to standardise protocols (including oceanographic variables) of visual surveys of floating debris. ^[34] We used visual surveys and environmental DNA (eDNA) sampling to document the presence of all life stages of foothill yellow-legged frogs (Rana boylii) at historically occupied sites. ^[35] However, field and modeled crack spacing are based on visual surveys of fully developed transverse cracks visible on the slab surface. ^[36] Only a single on-effort sighting was made (of two common bottlenose dolphins [Tursiops truncatus]) during visual surveys, and acoustic detection rates were generally low, with the exception of humpback whale (Megaptera novaeangliae) observations during their winter/spring breeding season. ^[37] This can be achieved by visual surveys to collect data, which are easy to perform at street level, their further process via an algorithm, and their aggregation to assess the walking performance levels of the test area. ^[38]