Results 101 to 110 of about 1,867,017 (207)

Reproductive performance and larval quality of blue swimming crab (Portunus pelagicus) broodstock, fed with different feeds [PDF]

Songklanakarin Journal of Science and Technology (SJST), 2012
Fecundity, hatching rate and crab larvae quality of blue swimming crab, Portunus pelagicus, broodstock reared inearthen ponds, fed with different feeds, were studied for about 150 days.
Vutthichai Oniam, Likhit Chuchit, Wasana Arkronrat   +2 more
doaj  

Nitrate Transport, Denitrification, and Discharge in Tide‐Controlled Fractured Coastal Aquifers

Water Resources Research, Volume 62, Issue 11, November 2026.
Abstract Land‐derived nitrate degrades coastal groundwater quality, with denitrification in intertidal aquifers serving as a critical barrier to its seaward flux. While geologic heterogeneity has been recognized as a key factor affecting nitrate transport, denitrification, and discharge in coastal aquifers, few studies have investigated how fractures ...
Yipeng Zeng, Yifan Xie, Teng Xu, Yu Ye, Tongchao Nan, Jina Yin, Jie Yang, Jichun Wu, Chunhui Lu   +8 more
wiley   +1 more source

Post‐hatching development of the remote‐tactile bill‐tip organ in precocial shorebirds (Scolopacidae)

Journal of Anatomy, Volume 249, Issue 5, Page 1087-1098, November 2026.
Juvenile scolopacid shorebirds possess well‐developed osteological correlates of tactile bill‐tip organs, indicating sensory systems for remote‐touch foraging are present from early life. Ontogenetic changes in bill‐tip morphology suggest ecological specialisation and interspecific variation develop later, after fledging in these highly precocial ...
Carla J. du Toit, Anyaise Green, Daniel J. Field   +2 more
wiley   +1 more source

Preliminary study of on-board handling of the blue swimming crabs in fisheries fleet

IOP Conference Series: Earth and Environmental Science
Abstract The operation of the Blue Swimming Crab (BSC) fleet is one day trip not far from the coast, that the handling activity of BSC was carried out on land. Target fishing grounds in waters more than 30 meters depth. Preliminary assessment was carried out to determine the type of vessel, cooling system, and handling by steaming at ...
Z Wassahua, null Zarochman, S Sasmita, S S Sukoraharjo   +3 more
openaire   +1 more source

Status of crabbers in northern Catanduanes, Philippines, and their perspectives on national policies and plans for the blue swimming crab

Marine and Fishery Sciences
Marine resources in the Philippines are rapidly declining due to overfishing and habitat degradation, threatening biodiversity and the livelihoods of coastal communities and small-scale fishers.
Recie B. Bonaos, Maria Mojena Gonzales-Plasus   +1 more
doaj   +1 more source

Male Reproductive System of Blue Swimming Crab, Portunus pelagicus(Linnaeus, 1758) [PDF]

Journal of Cytology & Histology, 2013
The male reproductive system of Portunus pelagicus is bilaterally symmetrical creamy to whitish in colour, composed of a pair of testes, a pair of vas deferentia and a pair of ejaculatory ducts internally and a pair of penes, pair of secondary pleopods and the pair of primary pleopods externally as accessory reproductive organs, present on the inner ...
openaire   +1 more source

Effect of feeding frequency and various shelter of blue swimming crab larvae, Portunus pelagicus (Linnaeus, 1758) [PDF]

Songklanakarin Journal of Science and Technology (SJST), 2015
The objectives of this experiment were to improve blue swimming crab, Portunus pelagicus, rearing techniques by investigating (1) the applied frequency of feeding and (2) the effect of shelter on crab larvae survival.
Vutthichai Oniam, Wasana Arkronrat, Norhasmariza Binti Mohamed   +2 more
doaj  

Simple fix: The potential of escape gaps in enhancing the capture performance of crab pots used in the fishery of blue swimming crab, Portunus pelagicus (Crustacea, Decapoda, Portunidae), in the Philippines [PDF]

Acta Ichthyologica et Piscatoria
This study investigated the capture performance of two types of Philippine crab pots, a dome-type (DCP) and a box-type (BCP) installed with a pair of laboratory-tested escape gaps with flap through actual fishing operations.
Rizalyn M. Picoy-Gonzales, Nathaniel C. Añasco, Joy C. Lizada, Kazuhiko Anraku, Harold M. Monteclaro   +4 more
doaj   +3 more sources

Nursery Habitat Requirements for the Blue Swimming Crab: Implications for Larval Development

Journal of Human, Earth, and Future
Overfishing causes a significant decline in blue swimming crab (Portunus pelagicus) populations, an essential marine resource for Thailand. This research aimed to identify suitable nursery areas for this species throughout the four distinct monsoon seasons.
Jantira Rattanarat, Mullica Jaroensutasinee, Krisanadej Jaroensutasinee, Amonsak Sawasdee, Elena B. Sparrow   +4 more
openaire   +2 more sources

Variability in swimming behavior among broods of blue crab (Callinectes sapidus) zoeae

Journal of Experimental Marine Biology and Ecology, 2019
Abstract Blue crabs (Callinectes sapidus) support economically important fisheries across the eastern United States, which have exhibited historical variability in recruitment. Blue crab zoeae develop in surface waters over the continental shelf, where they need to constantly swim upward in order to stay within surface currents to successfully ...
Joseph C. Caracappa, Daphne M. Munroe
openaire   +1 more source