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

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.

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Ichthyoplankton community of the Dardanelles Strait, Turkey

Oceanological and Hydrobiological Studies ◽

10.1515/ohs-2017-0027 ◽

2017 ◽

Vol 46 (3) ◽

Cited By ~ 1

Author(s):

İsmail Burak Daban ◽

Ahsen Yüksek

Keyword(s):

Species Richness ◽

Species Composition ◽

Teleost Fish ◽

Dominant Species ◽

Fish Larvae ◽

The Other ◽

Fish Eggs ◽

One Year ◽

Eggs And Larvae ◽

Fish Eggs And Larvae

AbstractAn ichthyoplankton survey was conducted between March 2012 and February 2013 along the Anatolian coast of the Dardanelles Strait, with the aim of describing the species composition and temporal variation of fish eggs and larvae. For this purpose, monthly samples were collected at three sites using a WP-2 plankton net equipped with 500 µm mesh during a one-year period. Biodiversity indices were calculated to understand differences in biodiversity. A total of 50 teleost fish species belonging to 25 families and 7 orders were identified. The highest species richness of fish eggs was recorded in spring, whereas the highest species richness of fish larvae – in spring and summer. On the other hand, species richness of fish eggs and larvae were at a minimum in the fall. The most dominant species recorded in the Dardanelles were

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Chordata: Fish eggs and larvae

10.1093/oso/9780199233267.003.0041 ◽

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.

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