Occurrence and Hypoxic Tolerance of the Juvenile &lt;i&gt;Metapenaeus ensis&lt;/i&gt; at the Mouth of the Yodo River, Osaka

Yamochi, Susumu; Ariyama, Hiroyuki; Sano, Masaki

doi:10.2331/fishsci.61.391

Cited by 9 publications

(7 citation statements)

References 5 publications

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“…The present study confirmed the previous finding that the Yodo River mouth serves as a nursery for M. ensis (Yamochi et al 1995). Because some cohorts were not observed in the river mouth (i.e.…”

Section: Discussionsupporting

confidence: 81%

“…Yamochi et al (1995) reported that the brackish area of the Yodo River mouth is a nursery area for this shrimp, which has a high tolerance to the ambient hypoxic conditions. Ariyama & Sano (2000) conducted release experiments of artificially reared M. ensis in the Yodo River mouth.…”

Section: Introductionmentioning

confidence: 99%

“…Courtney et al 1989, Crocos et al 2001; population ecology in a Vietnamese river (Viet & Sakuramoto 2013); maturation, growth and recruitment in Hong Kong (Cheung 1964, Chu et al 1993, Leung 1997; and maturation, migration and nursery in Taiwan (Su 1988, Su & Liao 1994. Especially in Japan, many ecological studies on this shrimp have been carried out at various localities: Mikawa Bay and Ise Bay (Aichi Prefectural Fisheries Experimental Station 1942); Lake Naka-umi and Lake Shinji (Ota 1949); the Seto Inland Sea [Kii Channel (Ueta et al 1993); Osaka Bay (Abe et al 1995, Yamochi et al 1995, Ariyama et al 1997; Bisanseto (Yasuda 1956); Suo-nada (e.g. Yatuyanagi & Maekawa 1956, Ishida et al 1985, Tokuda et al 1997, Katayama et al 2001]; Tosa Bay (Kochi District Fisheries Improvement Council & Kochi Prefectural Kochi Fisheries Guidance Office 1971, Sakaji & Komatsu 2004); and the Ariake Sea (Ikematsu 1959).…”

Section: Introductionmentioning

confidence: 99%

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Growth, reproduction and ontogenetic migration of the greasyback shrimp <i>Metapenaeus ensis</i> in Osaka Bay, Japan

Ariyama

Sano

2015

Plankton Benthos Res

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Abstract:To clarify the growth, reproduction and ontogenetic migration of Metapenaeus ensis, 96,898 individuals (6-175 mm in body length, BL) were collected from five areas in Osaka Bay. Larval settlement was estimated to occur from June or July to October in the Yodo River mouth. Juveniles grew there and migrated to the innermost area of the bay, and then to the deeper areas as they grew. Growth of females showed a good approximation to a seasonally fluctuating von Bertalanffy equation, with a size-frequency distribution suggesting the presence of 2 or 3 cohorts per year. Body length of females attained 35-125 mm in the first winter and 105-150 mm in the second, and their life span is estimated to be about two years. Their reproductive season was mainly from June or July to September in the second year (ca. 1 year old), and mainly July in the third year (ca. 2 years old). The broad variation in the size range of reproducible females (BL 76-168 mm) suggests indeterminate growth. Males were smaller than females with overlapping cohorts but their life cycle appears to be similar to that of females.

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Section: Discussionsupporting

confidence: 81%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Growth, reproduction and ontogenetic migration of the greasyback shrimp <i>Metapenaeus ensis</i> in Osaka Bay, Japan

Ariyama

Sano

2015

Plankton Benthos Res

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“…There are numerous studies focused on the effects of oxygen deficiency on aquatic animals. It was reported that the lethal DO content and the low DO tolerance of most fish and crustacean species varied between 0.5 and 2 mg/L (MacKay 1974; Allan and Maguire 1991; Yamochi et al 1995; Martinez et al 1998; Jiang 1999; Wu et al 2002). The lowest record was 0.061 mg/L in adults Procambarus clarkii (Wen et al 2003).…”

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confidence: 99%

Effects of Limited Dissolved Oxygen Supply on the Growth and Energy Allocation of Juvenile Chinese Shrimp, Fenneropenaeus chinensis

Wei¹,

Zhang²,

Huang³

et al. 2009

J World Aquaculture Soc

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Information about the effect of hypoxia exposure on energy allocation is helpful for better understanding how aquatic animals tolerate and adapt to a hypoxic environment. The growth, molting, and energy allocation were investigated in juvenile Fenneropenaeus chinensis exposed to five different dissolved oxygen (DO) seawaters (2.09 ± 0.15, 3.10 ± 0.29, 4.13 ± 0.25, 4.73 ± 0.12, and 5.48 ± 0.09 mg/L DO) for 30 d. When DO was below 4.13 mg/L, the growth of shrimp was depressed. Feed ingestion and feed conversion efficiency decreased with the decrease of DO. Less feed ingestion was caused by lower daily metabolic energy. Higher proportion of ingested energy lost in metabolism, exuviations, and nitrogen excretion caused lower feed conversion efficiency. More energy lost in exuviations, lower survival rate, soft carapaces of dead shrimp, and cannibalism were found in oxygen deficient groups and it implicated that hypoxia could delay the shrimp recovering from molting and cause cannibalism and higher mortality. The results indicated that hypoxia was an important factor affecting the amount and fitness of shrimp stock because it could cause a high rate of mortality and growth depression.

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“…See Table 3 for definitions of abbreviations 27% dissolved oxygen saturation (1.93 mgO 2 /l), while 17 and 83% of the crabs died at 16% (1.14 mgO 2 /l) and 12% (0.86 mgO 2 /l) dissolved oxygen saturation, respectively [22]. These results indicate that the tolerance of this crab for hypoxia is relatively high but that severe hypoxia (\27% DO saturation) is lethal.…”

Section: Monthlymentioning

confidence: 90%

Effect of environmental factors, especially hypoxia and typhoons, on recruitment of the gazami crab Portunus trituberculatus in Osaka Bay, Japan

Ariyama

Secor

2010

Fish Sci

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Important crustacean fisheries occur in semienclosed seas. These fisheries can be strongly affected by intense exploitation and episodic anthropogenic and climatic events, but the effects of such events remain largely uninvestigated. To assess the influence of such factors, we examined dredge catch data on the gazami crab Portunus trituberculatus in Osaka Bay, Japan from 1984 to 2008 and investigated various associated environmental factors. There were five peak monthly catches during the study period, which typically occurred in August or November. Relative abundance (measured as catch per unit effort) in August was positively associated with previous recruitments to the fishery, typhoon frequency, and dissolved oxygen saturation during the juvenile period. In comparison, relative abundance in November was strongly correlated with the number of typhoons and was also positively associated with dissolved oxygen levels in the bottom water. The results of our multi-decadal study suggest that hypoxia is a principal agent of mortality for juvenile crabs and that normoxia in the nursery habitats is a necessary condition for the successful recruitment of individuals into the adult population. The positive influence of typhoons on recruitment is probably due increased mixing in stratified coastal waters, which disrupts the persistent hypoxia in bottom waters, but other unknown processes may also contribute to favorable recruitments.

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Occurrence and Hypoxic Tolerance of the Juvenile <i>Metapenaeus ensis</i> at the Mouth of the Yodo River, Osaka

Cited by 9 publications

References 5 publications

Growth, reproduction and ontogenetic migration of the greasyback shrimp <i>Metapenaeus ensis</i> in Osaka Bay, Japan

Growth, reproduction and ontogenetic migration of the greasyback shrimp <i>Metapenaeus ensis</i> in Osaka Bay, Japan

Effects of Limited Dissolved Oxygen Supply on the Growth and Energy Allocation of Juvenile Chinese Shrimp, Fenneropenaeus chinensis

Effect of environmental factors, especially hypoxia and typhoons, on recruitment of the gazami crab Portunus trituberculatus in Osaka Bay, Japan

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