Ontogeny and Physiology of the Digestive System of Marine Fish Larvae

Infante, Marine Fish Larvae José Luiz Zambonino; Gisbert, Enric; Sarasquete, Carmen; Navarro, Isabel; Gutiérrez, Joachim; Cahu, Chantal

doi:10.1201/b10749-8

Cited by 118 publications

(175 citation statements)

References 113 publications

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“…However, massive production of the European hake, Merluccius merluccius, is still limited because of hatchery problems, mostly the high mortalities detected during larval rearing under intensive larviculture system, particularly at the moment of transition from endogenous to exogenous feeding and weaning to artificial diets. In hake species, as in most reared teleost fishes, the transitional feeding period is the moment when the feeding ability of the fish larvae is being developed and larvae start to eat (exogenous food) with some endogenous reserves still present to meet energetic demands of prey capture (Bjelland and Skiftesvik 2006, Zambonino-Infante et al 2008. Another factor related to larval mortality of hake species is the failure of the lipid droplet absorption (Bustos et al 2007) of unknown origin.…”

Section: Discussionmentioning

confidence: 99%

“…Main organs and organ-systems become functional by first feeding and differentiate during the larval stage and metamorphosis (Falk-Petersen 2005). There are inter-specific variations in the timing of organ formation, developing and functionality of different systems, organs and tissues, which depend on several genetic, nutritional and/or environment factors , Falk-Petersen 2005, Zambonino-Infante et al 2008. It is important to note that, in spite of significant differences in rates of development of organs and systems in many fish species, the formation of the digestive tract is completed towards the end of the larval stage and juvenile metamorphosis, while the cytological differentiation takes place earlier than the differentiation of tissue and anatomy (Kuz'mina and Gel'man 1998).…”

Section: Introductionmentioning

confidence: 99%

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A morphohistological and histochemical study of hatchery-reared European hake, <i>Merluccius merluccius</i> (Linnaeus, 1758), during the lecitho-exotrophic larval phase

Ortiz-Delgado¹,

Iglesias²,

Sánchez³

et al. 2012

Sci. Mar.

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SUMMARY:The larval development of reared European hake, Merluccius merluccius (Linnaeus, 1758), during the lecithotrophic phase, from hatching until 5 days post-hatching (dph), and throughout the endo-exotrophic feeding phase (6-10 dph) was studied by histology and histochemistry. Many crucial morphological, cellular and tissular changes were observed during both feeding phases, mostly those related to digestive and visual ontogenetic events, such as differentiation of buccopharyngeal cavity and eye development (at hatching); pigmentation and differentiation of cone-photoreceptors (4 dph); opening of the mouth and anus, appearance of intestinal valves (5-6 dph); presence of buccopharyngo-esophageal (5-6 dph) and intestinal (9 dph) mucous cells; folding of intestinal mucosa (6 dph); development of regional specific digestive musculature (6 dph); typical structure and functionality of the liver (sinusoids, biliary and pancreatic ducts, glycogen, protein and lipid reserves) (4-6 dph); and characteristic acinar distribution pattern of eosinophilic zymogen granules of the exocrine pancreas (6 dph). Between 9 and 10 dph, the hake larvae showed evident signs of lipid absorption within enterocytes of the anterior intestinal region and a remarkable process of pynocitosis and intracellular digestion was detected in the posterior intestine (supranuclear inclusions or acidophilic protein vesicles). In hake larvae at 10 dph, a proliferation of renal tubules, spleen differentiation and gill development, as well as the presence of the first thyroid follicle, were clearly distinguished. At this time, stomach gastric gland differentiation was not detected and endocrine pancreas and gill lamellae were not evidenced. However, and interestingly, swim bladder and eyes (developing rods) were well differentiated in larval development from 9 dph onwards. In summary, in European hake larval development during the endo-exogenous feeding phase and especially at 9 to 10 dph, most systems, organs and tissues were well differentiated. Particularly, digestive and visual systems were developed and physiologically functional some days before the start of the exogenous feeding phase.Keywords: European hake, Merluccius merluccius, larvae, histology, histochemistry, ontogeny, yolk sac, endo-exotrophic feeding, visual acuity. RESUMEN:Estudio morfohistológico e histoquímico de larvas cultivadas de merluza europea, Merluccius Merluccius (Linnaeus, 1758), durante la fase lecito-exotrófica. -Se ha realizado un estudio histológico e histoquími-co del desarrollo larvario de la merluza europea, Merluccius merluccius (Linnaeus, 1758) durante la fase lecitotrófica, desde la eclosión hasta los 5 días post-eclosión -dpe-, y en la fase endo-exotrófica (larvas de 6-10 dpe). Durante ambas fases alimentarias se han observado importantes cambios morfológicos, celulares y tisulares, principalmente aquellos relacionados con la ontogenia digestiva y visual, tales como: la diferenciación de la cavidad bucofaríngea y desarrollo y diferenciación ocular (en el momento de...

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A morphohistological and histochemical study of hatchery-reared European hake, <i>Merluccius merluccius</i> (Linnaeus, 1758), during the lecitho-exotrophic larval phase

Ortiz-Delgado¹,

Iglesias²,

Sánchez³

et al. 2012

Sci. Mar.

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“…Although the basic mechanisms of organ and system development are similar among teleosts, there are considerable interspecific differences regarding their relative timing of differentiation, development and functionality during early ontogeny (Treviño et al, 2011). The timing of development of organ and physiological function is affected by the general life history and reproductive strategy of each species, especially in tropical species with fast development (Zambonino-Infante et al, 2008;Lazo et al, 2011). Hence, there is a need to conduct specific studies on the ontogenesis of fish digestive system for each species to better understand their morphogenesis and nutritional physiology.…”

Section: Introductionmentioning

confidence: 99%

Histological development of the digestive system of the Amazonian pimelodid catfish Pseudoplatystoma punctifer

Gisbert

Moreira

Castro-Ruiz

et al. 2014

Animal

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The organogenesis of the digestive system was described in the Amazonian pimelodid catfish species Pseudoplatystoma punctifer from hatching (3.5 mm total length, TL) to 41 days post-fertilization (dpf) (58.1 mm TL) reared at 28°C. Newly hatched larvae showed a simple digestive tract, which appeared as a straight undifferentiated and unfolded tube lined by a single layer of columnar epithelial cells (future enterocytes). During the endogenous feeding period, comprised between 20 and 96 h post-fertilization (3.5 to 6.1 mm TL), the larval digestive system experienced a fast transformation with the almost complete development and differentiation of most of digestive organs (buccopahrynx, oesophagus, intestine, liver and exocrine pancreas). Yolk reserves were not completely depleted at the onset of exogenous feeding (4 dpf, 6.1 mm TL), and a period of mixed nutrition was observed up to 6 to 7 dpf (6.8 to 7.3 mm TL) when yolk was definitively exhausted. The stomach was the organ that latest achieved its complete differentiation, characterized by the development of abundant gastric glands in the fundic stomach between 10 and 15 dpf (10.9 to 15.8 mm TL) and the formation of the pyloric sphincter at the junction of the pyloric stomach and the anterior intestine at 15 dpf (15.8 mm TL). The above-mentioned morphological and histological features observed suggested the achievement of a digestive system characteristic of P. punctifer juveniles and adults. The ontogeny of the digestive system in P. punctifer followed the same general pattern as in most Siluriform species so far, although some species-specific differences in the timing of differentiation of several digestive structures were noted, which might be related to different reproductive guilds, egg and larval size or even different larval rearing practices. According to present findings on the histological development of the digestive system in P. punctifer, some recommendations regarding the rearing practices of this species are also provided in order to improve the actual larval rearing techniques of this fast-growing Neotropical catfish species.Keywords: histology, ontogeny, digestive system, catfish, larvae, Amazonia ImplicationsThe aquaculture of Amazonian native species requires the mastering of their biological cycle, especially the improvement of current larval rearing procedures. In this context, the present study provides a detailed and comprehensive description of the development of the digestive tract and accessory glands in the pimelodid catfish Pseudoplatystoma punctifer. This information will provide insight in the digestive physiology of this Amazonian fish species in order to synchronize the stage of larval development with rearing procedures and overcome actual larval rearing bottlenecks (e.g. diet formulation, weaning and cannibalistic behaviour). IntroductionAquaculture in Latin America and the Caribbean is principally known for the salmon industry in Chile and shrimp farming in Ecuador. However, the benefits of this export-oriented and large-scale...

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“…The importance of the early appearance of the pancreas islets for general metabolism and further development of the larvae has been previously shown by several authors (Tanaka et al 1995;Ortiz-Delgado et al 2003;Falk-Petersen 2005;Zambonino Infante et al 2008;Hachero-Cruzado et al 2009). Following opening of the mouth, the size of the pancreas and the number of zymogen granules increased in Hamun mahi.…”

Section: Developed Pharyngeal Teeth (Pt) In the Areolar Connectivementioning

confidence: 95%

“…The timing of organ development and its associated physiological functions are affected by the general life history of each species and a number of abiotic and biotic factors such as water temperature, food availability and food composition during early life stages. These changes determine the nutritional and physiological performances of a fish, and therefore its ability to deal with challenges during its subsequent life (Blaxter 1988;Fuiman 1997;Falk-Petersen 2005;Zambonino Infante et al 2008). Hence, it becomes necessary to carry out specific organogenesis studies for each species to optimize larval-rearing techniques and adequate feeding conditions.…”

Section: Introductionmentioning

confidence: 99%

Early ontogenetic development of digestive system inSchizothorax zarudnyiNikolskii, 1897 (Actinopterygii: Cyprinidae) larvae

Moghadam¹,

Behrouz²,

Rezaei³

et al. 2014

Italian Journal of Zoology

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The development of digestive tract and accessory glands in Hamun mahi (Schizothorax zarudnyi, Family: Cyprinidae) from hatching to 21 days after hatching (DAH) is described in this study. This information is critical for evaluating the digestive tract functional capacity and physiology of digestion in larvae, and designing optimal rearing techniques and artificial diets for this commercially valuable species. Based upon its feeding mode and structural changes in the digestive tract, larval ontogeny in S. zarudnyi was divided into three stages, Stage 1: 0-2 DAH, Stage 2: 3-8 DAH and Stage 3: from 9 DAH onwards. As in most teleosts, Hamun mahi at hatching had an undifferentiated digestive tract. The most critical ontogenetic events occurred at Stage 2. At the beginning of Stage 2, mouth opened in conjunction with the differentiation of the digestive tract. During Stages 2 and 3 the gut differentiated, and buccopharyngeal cavity, oesophgus and incipient intestine became distinguishable. At this stage digestive tract processes continued to develop (e.g. entrocyte's brushborders, appearance of digestive mucous cells at 4 DAH, and gut mucosal folds). The first taste buds and pharyngeal teeth appeared at the beginning of Stage 2. Histological observations suggest that digestive tract development of the Hamun mahi larvae, involving the presence of functional liver (vacuolated hepatocyes), exocrine and endocrine pancreas, and gallbladder enabled early larvae (from 3 DAH) to ingest, digest and assimilate the first exogenous food, even before endogenous reserves were completely resorbed. From Stage 3 onwards, most organs essentially exhibited an increase in tissue structure, size and number.

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Ontogeny and Physiology of the Digestive System of Marine Fish Larvae

Cited by 118 publications

References 113 publications

A morphohistological and histochemical study of hatchery-reared European hake, <i>Merluccius merluccius</i> (Linnaeus, 1758), during the lecitho-exotrophic larval phase

A morphohistological and histochemical study of hatchery-reared European hake, <i>Merluccius merluccius</i> (Linnaeus, 1758), during the lecitho-exotrophic larval phase

Histological development of the digestive system of the Amazonian pimelodid catfish Pseudoplatystoma punctifer

Early ontogenetic development of digestive system inSchizothorax zarudnyiNikolskii, 1897 (Actinopterygii: Cyprinidae) larvae

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