Results 81 to 90 of about 28,204 (232)

Our water resources and their conservation [PDF]

open access: yes, 1939
Life history, habits, structure, industry, conservation efforts for: Blue Crabs; Oyster; Fin fishes - shad, rock, croaker; Sport fish and fishing - marine and fresh-water; other aquatic forms - Diamondback terrapin, muskrat.
Truitt, R.V.
core  

The relationship between blue swimming crab (Portunus pelagicus) abundance and environmental parameters in Spermonde Archipelago [PDF]

open access: yes, 2020
Management and conservation of the blue swimming crabs by the marine protected area method require the abundance and environmental parameter information of the blue swimming crab.
Eniwati, Eniwati   +3 more
core   +2 more sources

When invasions go unnoticed: Public perception of the freshwater jellyfish Craspedacusta sowerbii in Europe

open access: yesPeople and Nature, EarlyView.
Abstract Biological invasions are a major driver of biodiversity loss, yet inconspicuous or “cryptic” species often escape detection and public awareness, limiting management responses. We investigated the freshwater jellyfish Craspedacusta sowerbii, likely native to China and now present on six continents, through a 22‐month multilingual online survey
Guillaume Marchessaux   +17 more
wiley   +1 more source

Resistance test at early larval stage of blue swimming crab, Portunus pelagicus

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2016
1, 38, Songklanakarin Journal of Science and Technology (SJST)
Mhd Ikhwanuddin   +4 more
openaire   +2 more sources

Crushing and Cutting: Shape Variation and Morphological Integration Between the Claws of Two Swimming Crab Species (Brachyura: Portunidae)

open access: yesActa Zoologica, EarlyView.
ABSTRACT This study investigated shape variations and morphological integration between the components of crusher and cutter claws in two species of swimming crabs, Callinectes danae and Callinectes ornatus. The propodi and dactyli of the claws were analysed in males and females of both species, using geometric morphometric techniques to identify ...
Julia Tadiotto   +4 more
wiley   +1 more source

Participatory Approach of Fisherwomen in Crab Fattening for Alternate Income Generation in Tuticorin, Southeast Coast of India

open access: yesAsian Fisheries Science, 2005
A community-based crab-fattening project was adopted by the womenfolk of Vellapatti fishing village in Tuticorin coast, Gulf of Mannar for proper utilization of their available resources and their leisure time for income generation.
J. PATTERSON, V.D. SAMUEL
doaj   +1 more source

Aspects of the biology of the lagoon crab Callinectes amnicola (Derocheburne) in Badagry, Lagos and Lekki lagoons, Nigeria [PDF]

open access: yes, 2003
A preliminary report of the size, composition, growth pattern and food habits of the blue crab, Callinectes amnicola, (De Rocheburne) in the Badagry, Lagos and Lekki Lagoons (Nigeria) is presented.
Lawal-Are, A.O.
core  

Clouds, shadows, or twilight? Mayfly nymphs recognise the difference [PDF]

open access: yes, 2006
1. We examined the relative changes in light intensity that initiate night-time locomotor activity changes in nymphs of the mayfly, Stenonema modestum (Heptageniidae).
Allan J.D.   +29 more
core   +3 more sources

Geometric Morphometrics Reveal Body Shape Variation in Freshwater Shrimps of the Genus Macrobrachium Lacking a Mandibular Palp (Formerly Pseudopalaemon Sollaud, 1911) (Decapoda: Palaemonidae)

open access: yesActa Zoologica, EarlyView.
ABSTRACT Shape variation in the cephalothorax of Macrobrachium species without mandibular palp using geometric morphometrics was used as a tool to support species differentiation and propose new diagnostic characters for taxonomic identification.
Thaís Arrais Mota   +4 more
wiley   +1 more source

Distribusi Ukuran Spasial-Temporal dan Berdasarkan Tingkat Kematangan Gonad Rajungan (Portunus pelagicus Linnaeus 1758) di Teluk Lasongko, Buton Tengah, Sulawesi Tenggara

open access: yesOmni-Akuatika, 2016
The aim of the study was to reveal spatial-temporal distribution of the blue swimming crab (Portunus pelagicus Linnaeus 1758) in terms of size and gonad maturity stage of both male and female.
Abdul Hamid   +3 more
doaj   +1 more source

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