Food and feeding performance of &lt;i&gt;Pellonula leonensis&lt;/i&gt; (Reajon, 1917) (Clupeidae) from Cross River estuary, Nigeria

Akpan, Bassey Emmanuel; Akpan, A W; Udo, Mfon T.; Akpabio, E E

doi:10.4314/ajazeb.v7i1.41161

Cited by 3 publications

(4 citation statements)

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“…The length exponent in the length-weight relationship of pooled sexes of P. leonensis was 3, thus indicating that increase in weight is isometric. This is comparable with the findings of Akpan et al [5]. For most fishes the length exponent lies between 2.5 and 4.0 (Lagler et al [19].…”

Section: Discussionsupporting

confidence: 92%

“…The Atlantic coastal waters of the Gulf of Guinea, from Senegal to Zaire, support a considerable stock of the shoaling pelagic-clupeid, P. leonensis. This species and other clupeids are of high commercial importance in the Nigeria inshore waters (Otobo [1]; Ikomi [2]; Kunzel et al [3]; Ita [4]; Akpan et al [5] where they constitute important catch component of artisanal fisher folks in Qua Iboe estuary, East of the Niger Delta. The artisanal fishery is sustained by P. leonensis among other clupeids.…”

Section: Introductionmentioning

confidence: 99%

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Effect of Service Quality on Post-Accreditation Outpatient Health Care Services: Case Study of the Sulewana Community Health Center in Poso Regency

Pradoso¹,

Arifn²,

Sirajuddin³

et al. 2020

SARJNHC

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Section: Discussionsupporting

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Effect of Service Quality on Post-Accreditation Outpatient Health Care Services: Case Study of the Sulewana Community Health Center in Poso Regency

Pradoso¹,

Arifn²,

Sirajuddin³

et al. 2020

SARJNHC

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“…This result is in contrast to Ekeh who attributed increase in sulphate concentration (in Amadi Creek) to leachates and water run-off during the rains. However, SO4 concentration correlated positively with salinity during the study (r = 0.91, n = 30, p < 0.05) suggesting SO4 contributed salinity concentration [21]. Higher concentration in the dry season is evident that SO 4 did not emanate from external sources.…”

Section: Discussionmentioning

confidence: 79%

Fluxes of Physicochemical Parameters in The Cross River Estuary, Nigeria

2021

JMSRO

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Study on the fluxes of physicochemical parameters and nutrients in the Cross River estuary ecosystem was under taken between June, 2016 and April, 2017. Field data were collected bimonthly at five stations and analysed both insitu and in the laboratory using standard methods. The monthly mean surface water temperature ranged from 26.68±0.74 OC in June 2016 to 33.6±7.84 OC in October 2016, salinity ranged from 0.10±0.12 ‰ in October 2016 to 10.20±2.80 ‰ in March 2017, and DO from 2.740±0.563 mg/l in June 2016 to a maximum of 5.340±2.152 mg/l in January 2017. Values obtained for PO4 , SO4 , NO3 , DO, and BOD in this study were below the permissible limits [1]. There was significant (p < 0.05) temporal variation in all the parameters studied (PO4 , NO3 , SO4 , DO, BOD5 , salinity, temperature and transparency). There was no significant (p > 0.05) spatial variation in PO4 , NO3 , SO4 , temperature and transparency. Parameters studied showed both positive and negative correlations. The implications of these findings are discussed.

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“…This study showed that the larvae of C. carpio and C. auratus usually having higher feeding activity comparing with A. mosulensis. Akpan et al (2005) referred that more active fish larvae have higher feeding activity.…”

Section: Discussionmentioning

confidence: 99%

Note on feeding relationships of three species of cyprinid fish larvae in Al-Huwaiza marsh, Southern Iraq

Ahmed

2022

MJMS

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Food composition of three cyprinid larvae (Cyprinus carpio, Carassius auratus and Alburnus mosulensis) in Al-Huwaiza marsh has been studied during March and April 2006. The diet of these cyprinid larvae were consist mainly of zooplankton dominated by copepods both adult and larval stages followed by Cladocera Rotifera, aquatic insects and Ostracoda. The food of plant origin also exists and consists of diatoms and filamentous algae. Costello graphical plot showed that these larvae are generalist feeders. This strategy result in lower competition and allow these three species to co-occur in relatively high density in this marsh area. The food similarity between C. carpio and C. auratus was 0.60, between C. carpio and A. mosulensis was 0.44, while it was 0.72 between C. auratus and A. mosulensis. The food overlap analysis showed that C. carpio; C. auratus and A. mosulensis larvae share a wide range of prey types. Competition for food is possible However, direct competition seemed to be avoided to some extent as a result of great food availability in Al-Huwaiza marsh which makes it as a suitable nursery and feeding site for many cyprinid fish.

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Food and feeding performance of <i>Pellonula leonensis</i> (Reajon, 1917) (Clupeidae) from Cross River estuary, Nigeria

Cited by 3 publications

References 0 publications

Effect of Service Quality on Post-Accreditation Outpatient Health Care Services: Case Study of the Sulewana Community Health Center in Poso Regency

Effect of Service Quality on Post-Accreditation Outpatient Health Care Services: Case Study of the Sulewana Community Health Center in Poso Regency

Fluxes of Physicochemical Parameters in The Cross River Estuary, Nigeria

Note on feeding relationships of three species of cyprinid fish larvae in Al-Huwaiza marsh, Southern Iraq

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