Freshwater Invertebrate Biology最新文献_第3页

Descriptions of the Reproductive Organs of Nephelopsis obscura and Erpobdella punctata (Hirudinoidea:Erpobdellidae) 黑桫椤和斑点桫椤生殖器官的描述(水蛭总目:斑点桫椤科)

Freshwater Invertebrate Biology Pub Date : 1985-05-01 DOI: 10.2307/1467180

R. Singhal, R. Davies

引用次数: 6

Distribution of Epibenthic Microcrustaceans in Nearshore Lake Michigan 密歇根近岸湖底栖微甲壳类动物的分布

Freshwater Invertebrate Biology Pub Date : 1985-05-01 DOI: 10.2307/1467177

T. Nalepa, M. Quigley

{"title":"Distribution of Epibenthic Microcrustaceans in Nearshore Lake Michigan","authors":"T. Nalepa, M. Quigley","doi":"10.2307/1467177","DOIUrl":"https://doi.org/10.2307/1467177","url":null,"abstract":"Epibenthic distributions at depths of 11, 17, and 23 m in nearshore Lake Michigan were investigated by sampling the sediments and water column on a monthly basis from May to November 1977. The taxa with a greater portion of the population occurring in/near the sediments than in the water column were Acanthocyclops vernalis, cyclopoid copepodids IV-V, and Eurytemora affinis. The taxa occurring mostly in the water column were early stage cyclopoids (nauplii and copepodids I-III) and Bosmina longirostris. For all epibenthic taxa except nauplii, abundances in/near the sediments declined as water depth increased; total mean densities at the 11, 17, and 23 m depths were 13,300; 3,500; and 1,500/m2, respectively. In contrast, abundances in the water column did not decline with increased depth; total mean densities at the three depths were 15,300; 17,000; and 14,400/m3. Based on concentrations in the sediments and vertical distributions in the water column, many taxa were more aggregated near the bottom in spring/early summer than later in the year. This coincided with the occurence of a fine layer of detritus over the sandy sediments at this time. Nighttime dispersal off the bottom into the water column was less apparent in spring/early summer than in midsummer. Our findings suggest that in any quantitative study of microcrustaceans in nearshore areas of the Great Lakes, the sediments as well as the water column must be considered.","PeriodicalId":154110,"journal":{"name":"Freshwater Invertebrate Biology","volume":"120 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1985-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131044158","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

The Role of Lipids, Fungi, and Temperature in the Nutrition of a Shredder Caddisfly, Clistoronia magnifica 脂质、真菌和温度在粉碎机球蝇营养中的作用

Freshwater Invertebrate Biology Pub Date : 1985-05-01 DOI: 10.2307/1467178

Austen S. Cargill, K. Cummins, B. J. Hanson, R. Lowry

引用次数: 54

Comparative Energetics of Two Populations of the Unionid, Anodonta cataracta (Say) 卡塔诺齿(Anodonta cataracta, Say)两个居群的比较能量学

Freshwater Invertebrate Biology Pub Date : 1985-05-01 DOI: 10.2307/1467179

C. G. Paterson, I. Cameron

引用次数: 12

Seasonal Variation in the Time Course of Thermal Acclimation in the Crayfish Orconectes rusticus 小龙虾热驯化时间过程的季节变化

Freshwater Invertebrate Biology Pub Date : 1985-05-01 DOI: 10.2307/1467181

J. R. Layne, Mara L. Manis, D. Claussen

引用次数: 21

Recent Range Expansion of the Freshwater Mussel Anodonta implicata and Its Relationship to Clupeid Fish Restoration in the Connecticut River System 康涅狄格河水系淡水贻贝(Anodonta implicata)最近的活动范围扩展及其与棘目鱼类恢复的关系

Freshwater Invertebrate Biology Pub Date : 1985-05-01 DOI: 10.2307/1467182

Douglas G. Smith

引用次数: 58

Winter-Spring Depth Distribution of Chironomidae in a Southeastern Reservoir 东南某水库手蛾科冬春深度分布

Freshwater Invertebrate Biology Pub Date : 1985-02-01 DOI: 10.2307/1467194

M. Diggins, J. Thorp

引用次数: 8

Survival Following Exposure to Subzero Temperatures and Respiration in Cold Acclimatized Larvae of Enallagma boreale (Odonata:Zygoptera) 暴露于零度以下温度和呼吸后冷适应的木纹木纹幼虫的存活

Freshwater Invertebrate Biology Pub Date : 1985-02-01 DOI: 10.2307/1467193

W. Duffy, C. Liston

引用次数: 10

Back Matter 回到问题

Freshwater Invertebrate Biology Pub Date : 1985-02-01 DOI: 10.1086/fresinvebiol.4.1.1467200

引用次数: 0

Factors Influencing Invertebrate Size Distributions in Prairie Potholes and Implications for Coexisting Duck Species 草原洼地无脊椎动物体型分布的影响因素及对共存鸭种的启示

Freshwater Invertebrate Biology Pub Date : 1985-02-01 DOI: 10.2307/1467198

D. Armstrong, T. Nudds

{"title":"Factors Influencing Invertebrate Size Distributions in Prairie Potholes and Implications for Coexisting Duck Species","authors":"D. Armstrong, T. Nudds","doi":"10.2307/1467198","DOIUrl":"https://doi.org/10.2307/1467198","url":null,"abstract":"Species of dabbling ducks which co-occur on, and obtain invertebrates from potholes in prairie Canada do not display habitat- and diet-niche complementarity as predicted by competition theory. We hypothesized that this was because some aspect of the diet niche of ducks was not independent of the habitat niche. Because dabbling ducks partition invertebrate foods on the basis of size, we tested whether invertebrate size distributions in potholes were influenced by microhabitat structure. Activity traps were used to sample aquatic invertebrates weekly from late May to early July at 50 sites over a gradient of water depth and emergent and submergent vegetation density. Presence of submergent vegetation correlated significantly with invertebrate size; emergent vegetation density and water depth accounted significantly for additional variation in invertebrate size. Invertebrate size also decreased with time over all sites. These patterns 1) are consistent with a general theory of the distribution of particle sizes in aquatic environments and 2) point out the problem of testing for patterns of niche complementarity among coexisting predators of invertebrates when some characteristics of the invertebrate resource by which predators partition it, like size, is not independent of a habitat gradient which the predators also partition.","PeriodicalId":154110,"journal":{"name":"Freshwater Invertebrate Biology","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1985-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117352548","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: 24