Reproductive Behavior of Freshwater Clams Unio tigrids (Bou.) and Pseudodontopsis euphraticus (Bou.) in Al-Habbanyah Lake - Iraq

Al-Mahdawi, Mahmood M.; Al-Dulaimi, Muthanna

doi:10.4197/mar.15-1.9

Cited by 3 publications

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“…Among these species, Unio tigridis (Bourguignat, 1852), Unionidae has an importance for the biodiversity of freshwater ecosystem of the Turkey (Schütt, 1983;Şereflişan, 2003;Şereflişan, 2008). Even though the distribution and reproduction biology of this species were reported (Öktener, 2004;Al-Mahdawi and Al-Dulaimi, 2004), there have been no available literatures on the age, growth and mortality of this species yet.…”

Section: Introductionmentioning

confidence: 99%

Age, Growth and Mortality of Unio tigridis (Bourguignat, 1852)

Can

Şereflişan²

2018

Turkish JAF Sci.Tech.

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Unio tigridis has an importance for the biodiversity of freshwater ecosystem of the Turkey. However, there is no available literature in the world on the growth of this species yet. The aim of this study, therefore, was to describe the age, growth and mortality of this species living in Lake Gölbaşı from Hatay providence, Turkey. A total 428 of specimen were collected using by divers with hand dredges in depth of 1 to 6 meters based on annual sampling strategy from June-2004 to May-2005. Lengths and weighs of sample were ranged as 2.1 to 9.2 cm (6.79 ± 1.52) and 1.1 to 73.05 g (34.18 ± 15.56), respectively. Weight-Length relationship of all specimens was described as W=0.193L 2.63 (R 2 =0.94). Thus, a negative allometric growth was detected in the sampled population. The age of each individual was determined by counting the external shall annuli-growth interruption lines. The sampled population was composed of 18 age classes. Specimen belong to age class 7 was the most presented with 20.33 percent in the population. The rate of male to female (m:f) was 0.91:1. Seasonalized von Bertalanffy growth model (SVBGM) was used to describe the growth. From these results, it was shown that seasonality in growth does not occur in this lake for this species (L∞ = 8.80 cm (Shell Length), K = 0.271 year -1 , t0 = -0.161 year, C = 0.014, ts = 0.100 year with RSS = 23.22). The total mortality rate (Z ± Se) was calculated as 0.401 ± 0.015 year -1 with Rsquare = 0.99 (CL of Z with 95 % = 0.361 -0.440 year -1 ). Although, there is no fishing, no pollution and no predation risk on this species yet, due to growth characteristic, high K and low L∞, this type of species are vulnerable to extinction.

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Section: Introductionmentioning

confidence: 99%

Age, Growth and Mortality of Unio tigridis (Bourguignat, 1852)

Can

Şereflişan²

2018

Turkish JAF Sci.Tech.

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The Freshwater Molluscs of the Mesopotamian Plain

Pešić

Glöer²

2021

Tigris and Euphrates Rivers: Their Environment From Headwaters to Mouth

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First record of Sinanodonta woodiana and report for freshwater bivalves from Iraq (Mollusca: Bivalvia: Unionidae)

2021

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The native freshwater bivalve fauna of Iraq (Unionidae) is comprised of five native species documented in the literature. Here we report the first occurrence of the widely introduced Sinanodonta woodiana and suggest it represents the temperate lineage of this species. This species has already reached a high population density where it was collected in the Hilla River, a tributary of the Euphrates River in Babylon Province, Iraq.

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Reproductive Behavior of Freshwater Clams Unio tigrids (Bou.) and Pseudodontopsis euphraticus (Bou.) in Al-Habbanyah Lake - Iraq

Cited by 3 publications

References 0 publications

Age, Growth and Mortality of Unio tigridis (Bourguignat, 1852)

Age, Growth and Mortality of Unio tigridis (Bourguignat, 1852)

The Freshwater Molluscs of the Mesopotamian Plain

First record of Sinanodonta woodiana and report for freshwater bivalves from Iraq (Mollusca: Bivalvia: Unionidae)

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