Proceedings of the Nova Scotian Institute of Science (NSIS)最新文献

{"title":"The Secret World of Lichens: A Young Naturalists Guide","authors":"Kendra Driscoll","doi":"10.15273/pnsis.v53i1.11824","DOIUrl":"https://doi.org/10.15273/pnsis.v53i1.11824","url":null,"abstract":"<jats:p>N/A</jats:p>","PeriodicalId":153215,"journal":{"name":"Proceedings of the Nova Scotian Institute of Science (NSIS)","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139251913","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Population characteristics and movements of striped bass Morone saxatilis (Walbaum, 1792) in the Mira River estuary, Cape Breton Island, Nova Scotia, Canada","authors":"M. Dadswell, C. Buhariwalla, S. Andrews, M. Stokesbury, John L. MacMillan","doi":"10.15273/pnsis.v53i1.11821","DOIUrl":"https://doi.org/10.15273/pnsis.v53i1.11821","url":null,"abstract":"The occurrence of striped bass outside the immediate vicinity of known spawning rivers in Canada is neither widely understood nor well studied. Striped bass in Canada are managed and assessed within three distinct units, the Bay of Fundy, the Gulf of St. Lawrence, and the St. Lawrence River; but stocks that may occur outside these units are unrecognized. We document a previously unstudied aggregation of striped bass in the Mira River estuary (MRe), Cape Breton Island (46° 01′N, 60° 03′W), a location on the east coast of Nova Scotia omitted from present management units but which has been long reported to host an aggregation. From July 2012 to November 2014, 62 striped bass within MRe were sampled and 31 were surgically implanted with VEMCO acoustic transmitters. Striped bass ranged in size from 31.6 to 125.0 cm total length and age 3 to 24 years. Acoustic telemetry from 2012 to 2015 elucidated residency and fidelity to the MRe with mid-estuary overwintering every year, freshwater residency of the adult population during spring, and a summer through autumn aggregation in the lower estuary. Of the 31 acoustically tagged striped bass, 24 remained in MRe throughout the study, six exhibited mid-summer departures to the Atlantic Ocean but returned by mid-autumn, while one left the MRe and was never detected again. Mira River SB with acoustic tags were never detected at nearby Ocean Tracking Network telemetry infrastructure. Striped bass stocks exhibit similar residency and fidelity patterns to their natal rivers and estuaries elsewhere in its Atlantic coast range which suggests the Mira River aggregation constitutes a possible distinct stock yet unrecognized by Canadian fisheries managers.","PeriodicalId":153215,"journal":{"name":"Proceedings of the Nova Scotian Institute of Science (NSIS)","volume":"50 8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139252847","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Violinist’s Thumb and Other Lost Tales of Love, War, and Genius, as Written by our Genetic Code","authors":"David H.S. Richardson","doi":"10.15273/pnsis.v53i1.11827","DOIUrl":"https://doi.org/10.15273/pnsis.v53i1.11827","url":null,"abstract":"<jats:p>N/A</jats:p>","PeriodicalId":153215,"journal":{"name":"Proceedings of the Nova Scotian Institute of Science (NSIS)","volume":"38 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139254166","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Twenty years of ecological research in Nova Scotia wilderness areas and nature reserves: A review of studies, 2002 to 2022","authors":"R. Cameron","doi":"10.15273/pnsis.v52i2.11497","DOIUrl":"https://doi.org/10.15273/pnsis.v52i2.11497","url":null,"abstract":"The following paper is a review of the research undertaken over the last twenty years in Wilderness Areas and Nature Reserves in Nova Scotia. A brief summary is presented of the main findings of each research project conducted by the author or contributed to by the author in a significant way. Inventories have included eleven bioblitzes and over four thousand plots from systematic transects. These have revealed significant new records for species including those of conservation concern. Results suggest there are many species than have not been identified in protected areas. Geographical Information System (GIS) Ecological Land Classification was completed for Nova Scotia and this led to ecosystem gap analysis to determine ecosystems that are not well represented in the current protected areas system. Long-term monitoring, using biodiversity transects and lichens, indicates that air quality is good throughout the protected areas system. Forests are returning to a more climax condition and with the exception of a few instances, non-native plants are generally not problematic. Carbon modeling of protected areas suggests that they will be a carbon sink for the next one hundred years and would be a carbon source if managed for forestry. Protected areas are well suited to provide ideal optimal settings in which climate change adaptation and mitigation can take place.  Planning for climate change within protected areas can be facilitated by a Climate Change Adaptation Framework.Research on species of special concern in protected areas has included turtles, Mainland Moose, Canada Lynx, America Marten, Lichens, Atlantic Coastal Plain Flora, forest plants and Piping Plover. Research on rare, sensitive, vulnerable ecosystems has involved predictive modeling and identification and characterization of heathlands, forest wetlands and Jack pine woodlands. Old Growth Forest research has included predictive modeling, biological inventories, dendrochronology studies and scoring using indicators. Human activities adjacent to protected areas can cause deleterious edge effects. An ongoing study in the Cloud Lake Wilderness Area is measuring the effect of adjacent forestry on birds and plants within the Wilderness Area. Several studies on connectivity have looked at the increase in connectivity caused by the establishment of protected areas in Nova Scotia. Other efforts on connectivity have identified key nodes of connectivity within the province which require protection. Human use of protected areas can lead to damage of ecosystems and so investigations on human use of protected areas has been focussed on motorized vehicles and to a lesser extent on human foot traffic. Although there have been many ecological studies in protected areas over the last twenty years, it is evident that there still is a great deal that is unknown about the biodiversity of protected areas. ","PeriodicalId":153215,"journal":{"name":"Proceedings of the Nova Scotian Institute of Science (NSIS)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127916569","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Loon Watch – 25 years of successful volunteer citizen science at Kejimkujik National Park, Nova Scotia","authors":"J. Kerekes, P. Hope","doi":"10.15273/pnsis.v52i2.11494","DOIUrl":"https://doi.org/10.15273/pnsis.v52i2.11494","url":null,"abstract":"<jats:p>N/A</jats:p>","PeriodicalId":153215,"journal":{"name":"Proceedings of the Nova Scotian Institute of Science (NSIS)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127646719","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A tribute to Dr. Archibald Wilson McCulloch, former NSIS president and NRC research scientist","authors":"J. Walter","doi":"10.15273/pnsis.v52i2.11492","DOIUrl":"https://doi.org/10.15273/pnsis.v52i2.11492","url":null,"abstract":"<jats:p>N/A</jats:p>","PeriodicalId":153215,"journal":{"name":"Proceedings of the Nova Scotian Institute of Science (NSIS)","volume":"315 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120970794","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Carbon cycling and redox chemistry in an anoxic marine basin, Bras d’Or Lake, Nova Scotia","authors":"S. Punshon, K. Azetsu-Scott, B. Hatcher","doi":"10.15273/pnsis.v52i2.11495","DOIUrl":"https://doi.org/10.15273/pnsis.v52i2.11495","url":null,"abstract":"Measurements of oxygen, methane, pCO2, total dissolved inorganic carbon, total alkalinity, sulphide and nutrients were made in June, October and December 2017 in Whycocomagh Bay, a small marine basin at the western end of the Bras d’Or Lake estuarine system in Cape Breton, Nova Scotia. Dissolved oxygen was absent in the deep basin, similar to observations made in the years 1974, 1995-1997, and 2009-2021. Profiles of total dissolved inorganic carbon and total alkalinity were largely consistent with the sulphate reduction of particulate organic matter, having a Redfield stoichiometry of 106C:16N:1.6P. The concentration of dissolved methane ranged between 19-35 nmol L-1 (727-1147% saturation) above the thermocline, and reached 34.74 µmol L-1, (931,900% saturation) in the deep anoxic zone. The potential rate of microbial methane oxidation at the base of the oxycline, determined from an incubation experiment, was 0.34 µmol L-1 d-1, potentially acting to mitigate the flux of methane to the atmosphere. Deep water H2S concentrations ranged from 747 to 1,074 µmol L-1, more than a tenfold increase since the 1995-1997 study, with substantial increases also in ammonium and phosphate concentrations, likely as a result of eutrophication over the last two decades. Whycocomagh Bay presents an opportunity to study extreme marine redox chemistry at an easily accessible site.Keywords: Anoxic, methane, carbon cycle, carbon dioxide","PeriodicalId":153215,"journal":{"name":"Proceedings of the Nova Scotian Institute of Science (NSIS)","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123105709","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sydney Harbour: Seiches, tides and mean circulation","authors":"B. Petrie","doi":"10.15273/pnsis.v52i2.11496","DOIUrl":"https://doi.org/10.15273/pnsis.v52i2.11496","url":null,"abstract":"Beginning with observations from 1901, sea level elevations and currents from Sydney Harbour are examined across a broad frequency range. The mean currents, annual components of sea level, tides and seiches, mainly in the South Arm, are the focus. Tidal and mean currents are ~0.01 m s-1. The general circulation is estuarine-like with a thin, near-surface outflow layer and a thicker, deeper inflow. The distribution of contaminants in bottom sediments suggests the circulation, though weak, plays a retentive role in the Arm, transporting sediments towards its head. Analysis of 11-years of sea level data indicates a strong annual cycle, more energetic during winter than from late spring to early fall. The increased energy occurred at all frequencies except for tides. Seiches, with periods of ~0.5 to 2 h, emerge as a strong contributor to sea level and currents. The distributions of elevation and flow amplitudes associated with seiches were derived. With maximum observed values of 0.74 m and 0.24 m s-1, seiche displacements and currents can exceed those associated with tides and the mean circulation. While earlier studies identified only the dominant fundamental seiche mode, recent sea level data sampled at 1-minute show that modes 2-4 occur. Keywords: Sydney Harbour, sea level, mean circulation, tides, seiches","PeriodicalId":153215,"journal":{"name":"Proceedings of the Nova Scotian Institute of Science (NSIS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134316124","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Urban lichens: A field guide for northeastern North America","authors":"F. Anderson","doi":"10.15273/pnsis.v52i2.11499","DOIUrl":"https://doi.org/10.15273/pnsis.v52i2.11499","url":null,"abstract":"<jats:p>N/A</jats:p>","PeriodicalId":153215,"journal":{"name":"Proceedings of the Nova Scotian Institute of Science (NSIS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115348651","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A primer of life histories. Ecology, evolution, and application","authors":"Jennifer Thornhill Verma","doi":"10.15273/pnsis.v52i2.11500","DOIUrl":"https://doi.org/10.15273/pnsis.v52i2.11500","url":null,"abstract":"<jats:p>N/A</jats:p>","PeriodicalId":153215,"journal":{"name":"Proceedings of the Nova Scotian Institute of Science (NSIS)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125547504","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}