Annales Zoologici Fennici最新文献_第4页

Two-Year Cycle of Vendace (Coregonus albula) in Pyhäjärvi, SW Finland: Evidence for Asymmetric Competition Between Adults and Juveniles 芬兰西南部Pyhäjärvi的两年复仇周期(Coregonus albula):成人和青少年之间不对称竞争的证据

IF 0.7 4区生物学

Annales Zoologici Fennici Pub Date : 2021-09-06 DOI: 10.5735/086.058.0407

J. Sarvala, H. Helminen

{"title":"Two-Year Cycle of Vendace (Coregonus albula) in Pyhäjärvi, SW Finland: Evidence for Asymmetric Competition Between Adults and Juveniles","authors":"J. Sarvala, H. Helminen","doi":"10.5735/086.058.0407","DOIUrl":"https://doi.org/10.5735/086.058.0407","url":null,"abstract":"Long-term monitoring of the planktivorous vendace (Coregonus albula) in Pyhäjärvi, a lake in SW Finland, revealed periods characterised by different types of population regulation. In 1971–1989, the vendace stock was strong and exhibited a two-year cycle. In 1990–1999, extreme weather conditions and predation resulted in recruitment failures, after which overfishing kept year-classes small. From 2000 onwards, the two-year oscillations were re-established at a lower level. Here, we show that the two-year cyclicity prevalent in the 1980s was consistent with the hypothesis of asymmetric competition between adults and juveniles. Food consumption by juveniles of strong year-classes retarded growth and weakened condition of the co-occurring adults, resulting in less abundant year-classes. In 2000–2018, the role of intraspecific competition diminished due to interspecific competition from increased populations of other planktivorous fish, preventing vendace from attaining higher abundance. Elevated temperature probably confounded the effects of competition, but its direct role was masked by simultaneous gradual eutrophication and fish assemblage changes.","PeriodicalId":50968,"journal":{"name":"Annales Zoologici Fennici","volume":"58 1","pages":"191 - 213"},"PeriodicalIF":0.7,"publicationDate":"2021-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48916150","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Fast Somatic Growth May Cause Recruitment Overfishing in Vendace (Coregonus albula) Gillnet Fisheries 刺网渔业中快速的体细胞生长可能导致过度捕捞

IF 0.7 4区生物学

Annales Zoologici Fennici Pub Date : 2021-09-06 DOI: 10.5735/086.058.0412

T. Wanke, U. Brämick, T. Mehner

引用次数: 2

The Fate of the Kolk Syncytial Layer during Postembryonic Development of Stenodus leucichthys nelma Leuchithys nelma Stenodus胚胎后发育过程中Kolk合胞层的命运

IF 0.7 4区生物学

Annales Zoologici Fennici Pub Date : 2021-09-06 DOI: 10.5735/086.058.0404

E. Kondakova, V. A. Bogdanova

引用次数: 2

Contemporary and Historic Dynamics of Lake Whitefish (Coregonus clupeaformis) Eggs, Larvae, and Juveniles Suggest Recruitment Bottleneck during First Growing Season 湖白鱼卵、幼虫和幼鱼的当代和历史动态表明，在第一个生长季节，招募面临瓶颈

IF 0.7 4区生物学

Annales Zoologici Fennici Pub Date : 2021-09-06 DOI: 10.5735/086.058.0405

Zachary J. Amidon, Robin L. DeBruyne, E. Roseman, C. Mayer

{"title":"Contemporary and Historic Dynamics of Lake Whitefish (Coregonus clupeaformis) Eggs, Larvae, and Juveniles Suggest Recruitment Bottleneck during First Growing Season","authors":"Zachary J. Amidon, Robin L. DeBruyne, E. Roseman, C. Mayer","doi":"10.5735/086.058.0405","DOIUrl":"https://doi.org/10.5735/086.058.0405","url":null,"abstract":"To determine if a survival bottleneck occurs in Lake Erie's lake whitefish (Coregonus clupeaformis) population and explore possible mechanisms responsible, we examined contemporary and historical dynamics of lake whitefish eggs, larvae and juveniles. Widespread spawning and low overwinter egg retention were observed in 2016–2018, however subsequent larval CPUE remained consistent with historical observations when regular recruitment occurred. Highest larval CPUE was consistently observed in nearshore areas 3–11 km from mid-lake spawning locations. Fall age-1 juvenile presence was predicted by fall age-0 catches, indicating the bottleneck occurs during the first growing season. Our results suggest the following: (1) factors limiting recruitment affect survival during or after the pelagic larval stage to fall age-0, and (2) physical and biological processes underlying connectivity between spawning and nearshore nursery habitats may be limiting recruitment. Future research focusing on larval nursery habitat characterization and lake whitefish growth and survival may reveal mechanisms affecting recruitment.","PeriodicalId":50968,"journal":{"name":"Annales Zoologici Fennici","volume":"58 1","pages":"161 - 175"},"PeriodicalIF":0.7,"publicationDate":"2021-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45260618","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Aquaculture of Coregonid Species — Quo vadis? 珊瑚虫种的水产养殖——库瓦迪斯？

IF 0.7 4区生物学

Annales Zoologici Fennici Pub Date : 2021-09-06 DOI: 10.5735/086.058.0414

J. Baer, J. T. DeWeber, R. Rösch, A. Brinker

{"title":"Aquaculture of Coregonid Species — Quo vadis?","authors":"J. Baer, J. T. DeWeber, R. Rösch, A. Brinker","doi":"10.5735/086.058.0414","DOIUrl":"https://doi.org/10.5735/086.058.0414","url":null,"abstract":"Whitefish is well-known for its delicious meat and consumers are willing to pay high prices for it, but local supply is often limited due to fluctuating or declining catches. It is thus expected that whitefish aquaculture production should increase to help meet the demand, provided that insufficient knowledge or other roadblocks do not interfere. Here we use a literature review, expert interviews, and case-study approach to understand the existing knowledge, current production levels, and limitations of whitefish aquaculture in individual countries. As shown through the literature review, there is sufficient technical knowledge to scale-up whitefish production. However, interviews with several experts point out different factors hindering aquaculture production: strict environmental regulations, established production of other freshwater species, and possible competition with fish imports. The failure to establish whitefish aquaculture in Lake Constance underlines this outcome, as there is nearly no chance to establish whitefish aquaculture in this area despite very high demand paired with drastically decreasing supply from capture-fisheries. As a result, at least 50% of whitefish consumed at Lake Constance are imported. This case highlights a common pitfall in environmental management: decisions to forego or reduce local production often results in replacing a product of exceptionally high sustainability (locally produced fish) with imports from other countries.","PeriodicalId":50968,"journal":{"name":"Annales Zoologici Fennici","volume":"58 1","pages":"307 - 318"},"PeriodicalIF":0.7,"publicationDate":"2021-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45602329","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Return of the Apex Predator — How Brown Trout (Salmo trutta) Re-Establishment Shapes an Ecosystem 顶级捕食者的回归-褐鳟(Salmo trutta)如何重建形成生态系统

IF 0.7 4区生物学

Annales Zoologici Fennici Pub Date : 2021-09-06 DOI: 10.5735/086.058.0409

T. Perälä, S. Uusi‐Heikkilä, A. Kuparinen

引用次数: 0

Lifting the Vendace, Coregonus albula, on the Life Table: Survival, Growth and Reproduction in Different Life-Stages during Very High and Low Abundance Regimes 在生命表上解除宿怨:在非常高和低丰度制度下不同生命阶段的生存、生长和繁殖

IF 0.7 4区生物学

Annales Zoologici Fennici Pub Date : 2021-09-06 DOI: 10.5735/086.058.0406

T. Marjomäki, P. Valkeajärvi, J. Karjalainen

引用次数: 3

Vendace (Coregonus albula) in Lake Inari — What Has Changed in 50 years? 伊纳里湖的Vendace（Coreginus albula）——50年来发生了什么变化？

IF 0.7 4区生物学

Annales Zoologici Fennici Pub Date : 2021-09-06 DOI: 10.5735/086.058.0410

E. Salonen

引用次数: 0

Preface 前言

IF 0.7 4区生物学

Annales Zoologici Fennici Pub Date : 2021-09-06 DOI: 10.5735/086.058.0401

引用次数: 0

Occurrence of Two-Year Cyclicity, “Saw-Blade Fluctuation”, in Vendace Populations in Finland 芬兰Vendace人群两年周期性“锯片波动”的发生

IF 0.7 4区生物学

Annales Zoologici Fennici Pub Date : 2021-09-06 DOI: 10.5735/086.058.0408

T. Marjomäki, H. Auvinen, H. Helminen, A. Huusko, H. Huuskonen, P. Hyvärinen, J. Jurvelius, J. Sarvala, P. Valkeajärvi, M. Viljanen, J. Karjalainen

{"title":"Occurrence of Two-Year Cyclicity, “Saw-Blade Fluctuation”, in Vendace Populations in Finland","authors":"T. Marjomäki, H. Auvinen, H. Helminen, A. Huusko, H. Huuskonen, P. Hyvärinen, J. Jurvelius, J. Sarvala, P. Valkeajärvi, M. Viljanen, J. Karjalainen","doi":"10.5735/086.058.0408","DOIUrl":"https://doi.org/10.5735/086.058.0408","url":null,"abstract":"The tendency towards two-year cyclicity is considered typical of many Fennoscandian vendace populations, especially in fluctuation of recruitment, based on time series of individual lakes. We used two robust indicators to identify and quantify two-year cycles in vendace population proxy time series at different life-stages — spawning stock biomass (SB), density of newly hatched larvae (LD) and recruitment (REC) — from 22 Finnish lakes. Then we applied Fisher's meta-analytical test to assess the adequacy of the evidence to support the hypothesis that vendace population dynamics include two-year cyclicity. The results supported this hypothesis for REC but not for SB or LD. Yet, the indicators and test are conservative and time-series of SB and LD are shorter than those for REC. The appearance of cycles in REC is associated with high post-recruitment mortality, consequently practically only one spawning per cohort. Cycles may be typical for the recovery period from low abundance period also. Still, some populations with moderate post-REC mortality and non-cyclic SB abundance exhibited cycles in REC. Such dynamics presuppose the existence of more complex regulation based on the interaction of different life stages.","PeriodicalId":50968,"journal":{"name":"Annales Zoologici Fennici","volume":"58 1","pages":"215 - 229"},"PeriodicalIF":0.7,"publicationDate":"2021-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41392635","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4