Seasonal variations in body length and fecundity of 2 copepod species: Thermocyclops crassus (Fischer, 1853) and Eudiaptomus drieschi (Poppe &amp; Mrázek, 1895)

Bozkurt, Ahmet; Can, Mehmet Fatih

doi:10.3906/zoo-1007-7

Cited by 8 publications

(4 citation statements)

References 44 publications

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“…The observed seasonal variability of the body size, seems to be inversely related to temperature, as confirmed by the Pearson correlation. Similar seasonal variability in size with a winter maximum are commonly observed in copepods (Deevey 1960, Uye et al 1982, Liang and Uye 1996, Belmonte and Cavallo 1997, Mauchline 1998, Riccardi and Mariotto 2000, Ara 2002, Gaudy and Verriopoulos 2004, Tellioglu 2006, Bozkurt and Can 2014). Among the other factors affecting copepod body size, food availability seems to be of great importance, at least in some ecosystems (Deevey 1960, Durbin et al 1983, Viitasalo et al 1995).…”

Section: Discussionsupporting

confidence: 73%

First report of the presence of Acartia bispinosa Carl, 1907 (Copepoda, Calanoida) in a semi-enclosed Bay (Sharm El-Maya), northern Red Sea with some notes on its seasonal variation in abundance and body size

El‐Sherbiny

Al-Aidaroos

2014

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The calanoid copepod, Acartia bispinosa Carl, 1907, is reported for the first time in the Red Sea, where it is found to be an important copepod in the mesozooplankton community structure of the Sharm El-Maya Bay. Female and male are fully redescribed and illustrated of as the mouthparts of this species have never previously been described and figured. Acartia bispinosa was collected in the plankton samples throughout the year and showed two peaks of abundance, a pronounced one in April (4234 individuals m-3), and second smaller peak during November (1784 individuals m-3). The average total length of females varied between 1.32 and 1.53 mm at the end of June and January respectively. For males, the average total length fluctuated between 1.07 and 1.16 mm at end of June and March respectively. Temperature showed an inverse relationship with the body length (P > 0.001) and seemed to be one of the prime factors affecting the body length of both sexes.

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Section: Discussionsupporting

confidence: 73%

First report of the presence of Acartia bispinosa Carl, 1907 (Copepoda, Calanoida) in a semi-enclosed Bay (Sharm El-Maya), northern Red Sea with some notes on its seasonal variation in abundance and body size

El‐Sherbiny

Al-Aidaroos

2014

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“…Statistical analyses of correlation of total length (TL) of adult females yielded a negative correlation with SDT, but positive relationships with DP, DN and Chla (Table 1). Increase in egg production has been positively correlated to an increase in TL in Eudiaptomus dreischi [15], Pseudocalanus [16], and Eurytemora affinis [17], as well as an increase in Chla [16,17]. These factors could provide a probable explanation on the reproductive success of A. dorsalis in Lake Lanao as the lake is known to have increased nutrient levels through the years due to increasing eutrophication.…”

Section: Resultsmentioning

confidence: 95%

First record of the invasive Arctodiaptomus dorsalis (Marsh, 1907) (Copepoda:Calanoida:Diaptomidae) in Lake Lanao (Mindanao Island, Philippines)

Metillo¹,

Masorong²,

Macabangkit³

et al. 2014

actamanil

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Arctodiaptomus dorsalis, originally described to be distributed within the Americas, has been documented to occupy a significant number of freshwater lakes in the Philippines. This paper reports the first record of A. dorsalis in Lake Lanao, an ancient lake located in the island of Mindanao. Based on its very high abundance, and positive correlation between the total body length of females with lake dissolved nitrates, phosphates and chlorophyll a concentration, A. dorsalis has clearly established itself in the lake ecosystem and has benefitted in the steady increase in the lake's nutrient load. Lake Lanao's endemic Tropodiaptomus gigantoviger may be considered as another calanoid species to be displaced by A. dorsalis given that a thorough examination of plankton samples collected from Lake Lanao have not yielded individuals of T. gigantoviger.

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“…For instance, in most lakes, zooplankton is subjected to both vertebrate and invertebrate predation, with contrasting effects on body size. Temperature and availability of resources often interact (Viitasalo et al 1995;Primicerio 2003;Bozkurt and Can 2014). At the same time, in polluted lakes, chemicals may prevent organisms from developing morphological defenses and responding to predation (Sakamoto et al 2009).…”

Section: Other Factors and Interactionsmentioning

confidence: 99%

How planktonic microcrustaceans respond to environment and affect ecosystem: a functional trait perspective

Sodré

Bozelli

2019

Int Aquat Res

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Functional traits are ecologically relevant characteristics of species. They are relevant to community structuring in face of environmental drivers (response traits) and to ecosystem processes (effect traits). For planktonic microcrustaceans, the link between functional traits and their responses or effects is not always clear. Our objective was to review the literature on linking functional traits to environmental drivers and ecosystem processes for planktonic cladocerans and copepods. Response traits are discussed in four categories: morphological, life history, behavioral, or physiological. Temperature, predation, resources, and stressors are important drivers of morphological and life-history traits. Body size, a morphological trait, is probably the most important trait, because it responds to several environmental characteristics and is correlated with physiological traits and to zooplankton impact on ecosystems functions. In an ecosystem perspective, zooplankton is an important energy link between primary producers and secondary consumers. In trophic webs, it may control phytoplankton biomass and productivity, with consequences for whole lakes. Its influence on carbon, nitrogen, and phosphorus cycles is expected to increase with body size. Other traits may be important, but there is a lack of information. We point out the need of more functional trait research, especially with freshwater copepods and neglected tropical species. For a better understanding of natural systems, an integrative approach of multiple traits with multiple environmental drivers and ecosystem functions is necessary.

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Seasonal variations in body length and fecundity of 2 copepod species: Thermocyclops crassus (Fischer, 1853) and Eudiaptomus drieschi (Poppe & Mrázek, 1895)

Cited by 8 publications

References 44 publications

First report of the presence of Acartia bispinosa Carl, 1907 (Copepoda, Calanoida) in a semi-enclosed Bay (Sharm El-Maya), northern Red Sea with some notes on its seasonal variation in abundance and body size

First report of the presence of Acartia bispinosa Carl, 1907 (Copepoda, Calanoida) in a semi-enclosed Bay (Sharm El-Maya), northern Red Sea with some notes on its seasonal variation in abundance and body size

First record of the invasive Arctodiaptomus dorsalis (Marsh, 1907) (Copepoda:Calanoida:Diaptomidae) in Lake Lanao (Mindanao Island, Philippines)

How planktonic microcrustaceans respond to environment and affect ecosystem: a functional trait perspective

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