Fish Eggs and Larvae of the Chesapeake Bay: Observations on the Problem of Identifying Field Mortalities of Striped Bass (Morone saxatilis) Larvae from Preserved Samples

Estuaries ◽  
1983 ◽  
Vol 6 (2) ◽  
pp. 167
Author(s):  
Robert G. Otto ◽  
Jeffrey A. Boggs
Keyword(s):  
Chesapeake Bay ◽  
Striped Bass ◽  
Morone Saxatilis ◽  
Fish Eggs ◽  
Eggs And Larvae ◽  
Fish Eggs And Larvae

Chordata: Fish eggs and larvae

2017 ◽  
Author(s):  
Peter Munk ◽  
Jørgen G. Nielsen
Keyword(s):  
Life Cycle ◽  
Tree Of Life ◽  
Fish Eggs ◽  
General Morphology ◽  
Family Level ◽  
Eggs And Larvae ◽  
Fish Eggs And Larvae

This chapter describes the taxonomy of fish eggs and larvae. Most fish eggs and larvae are planktonic, and are commonly found in plankton net tows. Collectively these fish stages are referred to as ichthyoplankton. The chapter covers their life cycle, ecology, and general morphology. It includes a section that indicates the systematic placement of the taxon described within the tree of life, and lists the key marine representative illustrated in the chapter (usually to genus or family level). This section also provides information on the taxonomic authorities responsible for the classification adopted, recent changes which might have occurred, and lists relevant taxonomic sources.

scholarly journals Determining seasonal dominant fish eggs and larvae species groups in the west of Tonkin Gulf

2021 ◽  
Vol 21 (2) ◽  
pp. 171-181
Author(s):  
Huy Pham Quoc ◽  
Minh Nguyen Hoang
Keyword(s):  
Dominant Species ◽  
Species Group ◽  
Fish Eggs ◽  
Time And Space ◽  
The West ◽  
Dominant Fish ◽  
Gulf Of Tonkin ◽  
Species Groups ◽  
Eggs And Larvae ◽  
Fish Eggs And Larvae

From 2003 to 2016, 1,649 samples were collected, covering both the time and space of the Gulf of Tonkin. The results have identified groups of seasonal dominant fish eggs and larvae: Seven species groups in Spring, nine species groups in the Summer, six species groups in Autumn, and four dominant species groups in the Winter. The dominant index (Yi) ranges from 0.02 to 0.26 depending on the species group and each season of the year, the highest in the Goby group - Gobiidae (Yi = 0.26) achieved in the Spring, followed by Herringgroup - Clupeidae reaches Yi = 0.20 in the Summer and the Anchovy group - Engraulidae reaches Yi = 0.16 in the Summer. The highest advantage index is only Yi = 0.09 in the Winter for Unicorn cod species - Bregmaceros macclelandi. During this period, the number of taxa and dominant indexes tended to decrease from Spring to Winter slightly.

Influences of Anadromous Spawning Behavior and Optimal Environmental Conditions Upon Striped Bass (Morone saxatilis) Year-Class Success

1980 ◽  
Vol 37 (2) ◽  
pp. 143-154 ◽  
Author(s):  
R. E. Ulanowicz ◽  
T. T. Polgar
Keyword(s):  
Striped Bass ◽  
Environmental Conditions ◽  
Transport Model ◽  
Transition Probabilities ◽  
Morone Saxatilis ◽  
Spawning Behavior ◽  
Two Factors ◽  
Model Year ◽  
Eggs And Larvae ◽  
Potomac Estuary

An analysis of the spatial and temporal abundance patterns of developing striped bass (Morone saxatilis) ichthyoplankton stages in the Potomac Estuary, including a Markovian description of transport, indicates that annual differences in the distribution of spawning fish are not likely to account wholly for the wide fluctuations in year-class success. Year-class success can be decomposed into the product of two factors — one extrinsic, acting upon the eggs and larvae, and the other, a behavioral property of the adult stock. The effect of extrinsic environmental conditions upon year-class success can be measured relative to the maximum computed survival of eggs to post-finfold larvae among all locations and times during a given year. Apparently, the behavior of the spawning adult fish is not well matched with the environmental conditions favorable to ichthyoplankton survival, and therefore, the actual spawning distribution yields only a fraction (the spawning fitness) of the maximum production possible during that year. Spawning fitnesses were estimated to be small (< 0.02 out of 1.0) and varied by less than a factor of two over the three seasons observed. In contrast, the year-class success as measured by post-finfold production differed 35-fold over the same 3 yr. It appears most likely that the large range in success is due primarily to the extrinsic, density-independent environmental factors which determine the optimum survivals in combination with spawning behavior. However, no strong case can be made for behavioral compensation by spawning fish to offset changes in the annual optimum survival conditions for ichthyoplankton.Key words: anadromous, ichthyoplankton development, Markovian transition probabilities, optimal survival, spawning behavior, spawning fitness, striped bass, transport model, year-class success

scholarly journals Natural diet and predation impacts ofPelagia noctilucaon fish eggs and larvae in the NW Mediterranean

2016 ◽  
Vol 38 (5) ◽  
pp. 1243-1254 ◽  
Author(s):  
Uxue Tilves ◽  
Jennifer E. Purcell ◽  
Verónica L. Fuentes ◽  
Anna Torrents ◽  
Maria Pascual ◽  
...  
Keyword(s):  
Fish Eggs ◽  
Natural Diet ◽  
Nw Mediterranean ◽  
Eggs And Larvae ◽  
Fish Eggs And Larvae
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