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Migration of Two Atyid Shrimps, Caridina sakishimensis (Fujino and Shokita, 1976) and Caridina typus (H. Millne Edwards, 1937) in Urabaru, Kikai-jima Island, Southern Japan

Migration of Two Atyid Shrimps, Caridina sakishimensis (Fujino and Shokita, 1976) and Caridina typus (H. Millne Edwards, 1937) in Urabaru, Kikai-jima Island, Southern Japan

Anila Naz Soomro1*, Hiroshi Suzuki2, Sadaf Tabassum Qureshi3 and Wazir Ali Baloch1

1Department of Freshwater Biology and Fisheries, University of Sindh, Jamshoro 76080, Sindh, Pakistan
2Laboratory of Aquatic Resource Sciences, Faculty of Fisheries, Kagoshima University, Japan
3Institute of Plant sciences, University of Sindh, Jamshoro, Sindh, Pakistan

*      Corresponding author: anila.soomro@usindh.edu.pk

Fig. 1.

Physico-chemical parameters recorded at the sampling stations. Whiskers represent the standard deviation of mean values at each station.

Fig. 2.

Length-frequency analysis of orbital total length in Caridina sakishimensis showing monthly variations in OTL at St. 1 of Urabaru stream in Kikaijima, southern Japan.

Fig. 3.

Length-frequency analysis of orbital total length in Caridina sakishimensis showing monthly variations in the OTL at St. 3 and 4 of Urabaru stream in Kikaijima, southern Japan.

Fig. 4.

Length-frequency analysis of orbital total length in Caridina typus showing monthly variations in the OTL at St. 1 of Urabaru stream in Kikaijima, southern Japan.

Fig. 5.

Length-frequency analysis of orbital total length in Caridina typus showing monthly variations in the OTL at St. 2 of Urabaru stream in Kikaijima, southern Japan.

Fig. 6.

Length-frequency analysis of orbital total length in Caridina typus showing monthly variations in the OTL at St. 3 of Urabaru stream in Kikaijima, southern Japan.

Fig. 7.

Length-frequency analysis of orbital total length in Caridina typus showing monthly variations in the OTL at St. 4 of Urabaru stream in Kikaijima, southern Japan.

Fig. 8.

Length-frequency analysis of orbital total length in Caridina typus showing monthly variations in the OTL at St. 5 of Urabaru stream in Kikaijima, southern Japan.

Fig. 9.

Larval developmental stages of specimens sampled at the Urabaru headwater stream in Kikai-jima Island, southern Japan, showing (A) a) Stage I atyid larvae, b) Stage I palaemonid larvae, (B) the shape of telson of atyid larvae and (C) the shape of telson in palaemonid larvae.

Fig. 10.

Diurnal variations in the occurrence of planktonic larvae caught at the sampling stations (St. 1, 3, 4 and 5) of the headwater Urabaru stream in Kikaijima Island.

Pakistan Journal of Zoology

August

Vol. 52, Iss. 4, Pages 1225-1630

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