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Responses of early life history stages of the striped bass,Morone saxatilis to chlorination 斑马鱼早期生活史阶段对氯化反应的响应
Chesapeake Science Pub Date : 1977-03-01 DOI: 10.2307/1350386
D. Middaugh, J. Couch, Allan M. Crane
{"title":"Responses of early life history stages of the striped bass,Morone saxatilis to chlorination","authors":"D. Middaugh, J. Couch, Allan M. Crane","doi":"10.2307/1350386","DOIUrl":"https://doi.org/10.2307/1350386","url":null,"abstract":"The toxicity of total residual chlorination (TRC) to early life stages of the striped bass,Morone saxatilis, was determined using percent embryo hatchability, incipient LC50 bioassays, histopathology, and avoidance responses.","PeriodicalId":106819,"journal":{"name":"Chesapeake Science","volume":"262 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1977-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114266858","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}
引用次数: 37
Notes on the Natural History of the Bog Turtle, Clemmys muhlenbergi (Schoepff), in Delaware 沼泽龟自然史笔记，克莱米斯·穆伦伯格(肖普夫)，特拉华州
Chesapeake Science Pub Date : 1977-03-01 DOI: 10.2307/1350365
R. G. Arndt
{"title":"Notes on the Natural History of the Bog Turtle, Clemmys muhlenbergi (Schoepff), in Delaware","authors":"R. G. Arndt","doi":"10.2307/1350365","DOIUrl":"https://doi.org/10.2307/1350365","url":null,"abstract":"Field work on the bog turtle,Clemmys muhlenbergi (Schoepff), was carried out in Delaware from June 1971 to February 1974. It is now known in this state from more than 44 specimens from 11 localities in the Piedmont and Coastal Plain. Populations are known to occur at 4 localities and extensive field work was carried out at 3 of these. Data on size, sex, habitat, activity, behavior, reproduction, mortality, and distribution and abundance were collected and compared with data in the literature. These comparisons indicate that its biology in Delaware is similar to that in other states. Field data on cloacal temperature are presented for the first time, and this turtle was found to be active at a body temperature ranging from 17 to 35 C. This study and the recent great interest in the bog turtle reveal it to be more widely distributed and common than was previously thought. Although probably not as numerous as other turtles in its range, it is more secretive than rare.","PeriodicalId":106819,"journal":{"name":"Chesapeake Science","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1977-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125873237","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}
引用次数: 15
Organic matter in estuaries 河口的有机物
Chesapeake Science Pub Date : 1977-03-01 DOI: 10.2307/1350379
J. Reuter
{"title":"Organic matter in estuaries","authors":"J. Reuter","doi":"10.2307/1350379","DOIUrl":"https://doi.org/10.2307/1350379","url":null,"abstract":"Organic carbon compounds in river waters occur in both particulate and dissolved forms. The definition is rather arbitrarily based on separation by a 0.45 gm filter pore size. More than 90 percent of the total organic carbon (TOC) occurs in the dissolved form. The bulk of dissolved organic carbon compounds consists of biopolymers (e.g. polypeptides, polysaccharides) and geopolymers (humic substances). Since the chemical structure of the geopolymers requires specialized, less common enzyme systems for breakdown, microbial attack introduces a strong bias favoring digestion of the biopolymers. As a result, the latter make up less than 10 percent of the dissolved carbon, especially in river water where primary productivity is low. Humic substances are therefore the main","PeriodicalId":106819,"journal":{"name":"Chesapeake Science","volume":"110 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1977-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125011830","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}
引用次数: 11
A comparison of frequency distributions of hard clam, patent-tong catches 硬蛤蜊捕获量的频率分布比较
Chesapeake Science Pub Date : 1977-03-01 DOI: 10.2307/1350367
J. Loesch
{"title":"A comparison of frequency distributions of hard clam, patent-tong catches","authors":"J. Loesch","doi":"10.2307/1350367","DOIUrl":"https://doi.org/10.2307/1350367","url":null,"abstract":"Frequency data of hard clams caught by patent tongs in December, 1963 and December, 1972 were analyzed by the Kolmogorov-Smirnov two-sample test. The data do not support the contention that catch declined in the 9-year interim.","PeriodicalId":106819,"journal":{"name":"Chesapeake Science","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1977-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125444201","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}
引用次数: 3
Chlorinated compounds in coastal power plant cooling waters 沿海电厂冷却水中的氯化化合物
Chesapeake Science Pub Date : 1977-03-01 DOI: 10.2307/1350378
Steven J. Hergott
{"title":"Chlorinated compounds in coastal power plant cooling waters","authors":"Steven J. Hergott","doi":"10.2307/1350378","DOIUrl":"https://doi.org/10.2307/1350378","url":null,"abstract":"Results are presented based on 4 months of a 12 month study funded by EPA of chlorination practices at 5 coastal power plants in California. The plants are all owned and operated by the Pacific Gas and Electric Company. They include Potrero and Hunters Point in the Central Bay Region of the San Francisco Bay system, Pittsburg on Suisun Bay, Contra Costa on the San Joaquin River, and Moss Landing on Monterey Bay. Typical cooling water system layout is discussed with special emphasis on chlorination procedures. At all the plants chlorine is injected as a concentrated solution into a holding well located at the intake before the circulating water pumps. Halogen residuals are measured by the power plant chemist at the condenser inlet and this measured resid-","PeriodicalId":106819,"journal":{"name":"Chesapeake Science","volume":"188 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1977-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115531696","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}
引用次数: 1
General test conditions and procedures for chlorine toxicity tests with estuarine and marine macroinvertebrates and fish 河口和海洋大型无脊椎动物和鱼类氯毒性试验的一般试验条件和程序
Chesapeake Science Pub Date : 1977-03-01 DOI: 10.2307/1350383
D. Burton
{"title":"General test conditions and procedures for chlorine toxicity tests with estuarine and marine macroinvertebrates and fish","authors":"D. Burton","doi":"10.2307/1350383","DOIUrl":"https://doi.org/10.2307/1350383","url":null,"abstract":"A brief introduction to toxicity testing with estuarine and marine macroinvertebrates and fish is presented. Toxicity testing terminology, test conditions and procedures are discussed with an emphasis on toxicity testing using chlorine as the toxicant.","PeriodicalId":106819,"journal":{"name":"Chesapeake Science","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1977-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121353432","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}
引用次数: 8
Skull key to adult mammals of Delaware, Maryland and Virginia. II. Marine mammals 特拉华州，马里兰州和弗吉尼亚州成年哺乳动物的头骨钥匙。2海洋哺乳动物
Chesapeake Science Pub Date : 1977-03-01 DOI: 10.2307/1350370
C. H. Ernst
{"title":"Skull key to adult mammals of Delaware, Maryland and Virginia. II. Marine mammals","authors":"C. H. Ernst","doi":"10.2307/1350370","DOIUrl":"https://doi.org/10.2307/1350370","url":null,"abstract":"An artificial key to adult skulls of marine mammals reported from Delaware, Maryland and Virginia (and also to those species which, although not yet reported, may eventually be found along these states) is presented for use not only by wildlife, marine and professional biologists, but also by those lay persons interested in identifying skulls they may find on the beaches of this region. *** DIRECT SUPPORT *** A00BY065 00006","PeriodicalId":106819,"journal":{"name":"Chesapeake Science","volume":"140 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1977-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121978031","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}
引用次数: 0
Aspects of chlorine utilization in the United Kingdom 英国氯利用的几个方面
Chesapeake Science Pub Date : 1977-03-01 DOI: 10.2307/1350374
J. Coughlan, J. Whitehouse
{"title":"Aspects of chlorine utilization in the United Kingdom","authors":"J. Coughlan, J. Whitehouse","doi":"10.2307/1350374","DOIUrl":"https://doi.org/10.2307/1350374","url":null,"abstract":"Annual U.K. production of chlorine stands at around 106 tonnes. Less than 1.5% (15,000 tonnes) finds direct application as a biocide, of which 10,000 tonnes (1976 estimate) is used by the C.E.G.B. (England and Wales) for the control of bacterial slimes and marine fouling in power station cooling circuits. This compares with 4000 tonnes used for treating domestic water supplies. Indirect biocidal application via chlorinated hydrocarbon pesticides never exceeded 300 tonnes per annum. It is not standard practice in the U.K. to use chlorine in sewage treatment.","PeriodicalId":106819,"journal":{"name":"Chesapeake Science","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1977-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114520054","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}
引用次数: 12
Climbing activity in the hispid cotton rat,Sigmodon hispidus, and the eastern meadow vole,microtus pennsylvanicus 棉大鼠和东部草甸田鼠攀爬活动的研究
Chesapeake Science Pub Date : 1977-03-01 DOI: 10.2307/1350371
D. E. Wright, J. F. Pagels
{"title":"Climbing activity in the hispid cotton rat,Sigmodon hispidus, and the eastern meadow vole,microtus pennsylvanicus","authors":"D. E. Wright, J. F. Pagels","doi":"10.2307/1350371","DOIUrl":"https://doi.org/10.2307/1350371","url":null,"abstract":"Our data indicate that cotton rats,Sigmodon hispidus, and meadow voles,Microtus pennsylvanicus, climb and take advantage of food items available above ground level. We captured cotton rats and meadow voles above ground using snap traps attached to honeysuckle,Lonicera japonica. In laboratory observations, cotton rats climbed to heights near 1 m, and food consumption and weight change showed no significant difference between groups that had to climb for food and those that did not have to climb.","PeriodicalId":106819,"journal":{"name":"Chesapeake Science","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1977-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130585501","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}
引用次数: 4
Analytical problems in chlorination of saline water 咸水氯化处理中若干问题的分析
Chesapeake Science Pub Date : 1977-03-01 DOI: 10.2307/1350377
J. Johnson
{"title":"Analytical problems in chlorination of saline water","authors":"J. Johnson","doi":"10.2307/1350377","DOIUrl":"https://doi.org/10.2307/1350377","url":null,"abstract":"don't, our cooling processes rapidly lose efficiency; and sewage, with our microbiologically contaminated waste products, enters water used by man for shellfish. The main problem is man. Infectious hepatitis remains at 50,000 to 60,000 REPORTED cases per year, and gastroenteritis of unknown etiology is in the hundreds of thousands and probably millions (McDermott, 1975). Don't stop disinfecting, just do a better job.","PeriodicalId":106819,"journal":{"name":"Chesapeake Science","volume":"87 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1977-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116790374","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}
引用次数: 22
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